IGEM:IMPERIAL/2008/Prototype/Wetlab/parts: Difference between revisions

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===EspE===
===EspE===
===Antibiotics===
===Antibiotics===
===Biomaterials(+ss)===
===Biomaterials & Signal Peptides===


====EAK16-II====
====EAK16-II====

Revision as of 12:56, 1 September 2008

  • James Chappell: Just realised I cannot submit the promoters to the registry because unfortunately my account is for 2007. Ill update it later, but for now ill load to this page.
  • Chris D Hirst 21:40, 27 August 2008 (EDT):Had a go at uploading a sequence to the registry last night with mixed results, will check on this later and improve...
  • Chris D Hirst 04:02, 28 August 2008 (EDT):Did some more work, Part:K143001 is now up on the parts registry, I'l put it's sister part (part:BBa_K143002) up asap. Before we upload anymore however I think we should write out ALL the basic parts and asign them codes to prevent problems downstream. Linking via the bbpart system (see iGEM teams page on OWW) doesn't actually work....

Tom (or James) would it be possible for one of you to make a nice diagram (or two interlinking ones - 1 for 5', 1 for 3') to signify integration sequences?

  • Chris D Hirst 07:36, 28 August 2008 (EDT):Ok, the <bbpart></bbpart> system does work, but only on registry pages....

Numbering/Coding Rules!

  • Chris D Hirst 07:53, 28 August 2008 (EDT):All Imperial iGEM 2008 parts are currently being placed in our allocated K413000-K413999 space; the divisions our below, so when adding a part try to ensure it is placed in the correct section. Also, I've place a list of codes at the bottom of this page and assigned all our basic parts and some potential parts codes (though they can be changed - just let me know)

Basic Parts:

K413000-K413009 Integration sequences

K413010-K413019 Promoters

K413020-K413029 RBS

K413030-K413039 Coding Regions (Complete Genes - excludes those with coding sequences, they are separate)

K413040-K413049 Tags (ie. Secretion signals) and Tagged coding regions

Composite Parts:

K413050-K413089

Construction intermediates?:

K413090-K413100

Adding Parts to the Registry

The registry has a simple guide about adding parts on the following link. Before we start to add our parts we should collect the following information about each of our parts:

  • A part name
  • The DNA sequence of the part you are making
  • A short description of the part
  • A long description of the part, including references
  • The source of the part, including references
  • Design Considerations

Most of this information is on the wiki under the Sequence Page. If the wet lab team could all contribute to adding these parts it would help speed things up. Once we have our parts we can then build up our constructs that we will be submitting to the registry.

Promoters

Promoter ctc

  • Part name = promoter ctc
  • Sequence =
  • Promoter ctc is a sigma factor B dependent promoter found in B.subtilis. In B.subtilis endogenous sigma factor B is activated under mild stress from nutrient and physical stress response. The context with which we used the promoter ctc, was to take blue light as an input and give Polymerase Per Second(PoPS) as an output.


  • Promoter ctc is a sigma factor B dependent promoter found in B.subtilis. In B.subtilis endogenous sigma factor B is activated under mild stress. These mild stress conditions can be generally split into nutrient stress response and physical stress response. Nutrient stress response is triggered by low levels of ATP and GTP and physical stress response is triggered by exposure to blue light, salt, heat, acid or ethanol[1]. The promoter ctc has been used previously as a read out for the activation of sigma factor B [2].
  • The context with which we used the promoter ctc, was to take blue light as an input and give Polymerase Per Second(PoPS) as an output. To do this the other potential inputs need to be carefully controlled so that only blue light activated the sigma B and gives a PoPS output. In order to get sufficient sigma B activation by blue light the light receptor YtvA, part...., needs to be over expressed in B.subtilis [3].


  • Source - The part was designed using the sequence from the B.subtilis genome and from previously published papers [2][3]. This sequence was then synthesised by Geneart.
  • Design - Biobrick standard was applied to the promoter ctc sequence.

References

  1. Zhang S and Haldenwang WG. Contributions of ATP, GTP, and redox state to nutritional stress activation of the Bacillus subtilis sigmaB transcription factor. J Bacteriol. 2005 Nov;187(22):7554-60. DOI:10.1128/JB.187.22.7554-7560.2005 | PubMed ID:16267279 | HubMed [1]
  2. Igo MM and Losick R. Regulation of a promoter that is utilized by minor forms of RNA polymerase holoenzyme in Bacillus subtilis. J Mol Biol. 1986 Oct 20;191(4):615-24. DOI:10.1016/0022-2836(86)90449-3 | PubMed ID:3100810 | HubMed [2]
  3. Suzuki N, Takaya N, Hoshino T, and Nakamura A. Enhancement of a sigma(B)-dependent stress response in Bacillus subtilis by light via YtvA photoreceptor. J Gen Appl Microbiol. 2007 Apr;53(2):81-8. DOI:10.2323/jgam.53.81 | PubMed ID:17575448 | HubMed [3]

All Medline abstracts: PubMed | HubMed

Promoter hyper-spank

  • Part name = promoter hyper-spank
  • Sequence =
  • Promoter hyper-spank is an inducible promoter that has been designed for high expression in B.subtilis. Gene expression under the promoter hyper-spank can be induced by addition of Isopropyl β-D-1-thiogalactopyranoside (IPTG). The context with which we used the promoter hyper-spank, was to take an input of IPTG and give Polymerase Per Second(PoPS) as an output.


  • Promoter hyper-spank is an inducible promoter that has been designed for high expression in B.subtilis. Gene expression under the promoter hyper-spank can be induced by addition of Isopropyl β-D-1-thiogalactopyranoside (IPTG). The context with which we used the promoter hyper-spank, was to take an input of IPTG and give Polymerase Per Second(PoPS) as an output. IPTG does not induce the promoter hyper-spank directly, but requires the transcriptional regulator LacI, (part K413035). This means that LacI must be constitutively expressed in B.subtilis in order to use the promoter hyper-spank.
  • Source - The part was designed using the sequence from the B.subtilis genome and from previously published papers [1][2][3]. This sequence was then synthesised by Geneart.
  • Design - Biobrick standard was applied to the promoter hyper-spank sequence.

References

  1. Geng H, Nakano S, and Nakano MM. Transcriptional activation by Bacillus subtilis ResD: tandem binding to target elements and phosphorylation-dependent and -independent transcriptional activation. J Bacteriol. 2004 Apr;186(7):2028-37. DOI:10.1128/JB.186.7.2028-2037.2004 | PubMed ID:15028686 | HubMed [1]
  2. Britton RA, Eichenberger P, Gonzalez-Pastor JE, Fawcett P, Monson R, Losick R, and Grossman AD. Genome-wide analysis of the stationary-phase sigma factor (sigma-H) regulon of Bacillus subtilis. J Bacteriol. 2002 Sep;184(17):4881-90. DOI:10.1128/JB.184.17.4881-4890.2002 | PubMed ID:12169614 | HubMed [2]
  3. Ferguson CC, Camp AH, and Losick R. gerT, a newly discovered germination gene under the control of the sporulation transcription factor sigmaK in Bacillus subtilis. J Bacteriol. 2007 Nov;189(21):7681-9. DOI:10.1128/JB.01053-07 | PubMed ID:17720779 | HubMed [3]

All Medline abstracts: PubMed | HubMed

Promoter xylose

  • Part name = promoter xylose
  • Sequence =
  • Promoter Xylose is an inducible promoter that has been designed for high expression in B.subtilis. Gene expression under the promoter xylose can be induced by addition of xylose. The context with which we used the promoter xylose, was to take an input of xylose and give Polymerase Per Second(PoPS) as an output.


  • Promoter xylose is an inducible promoter that has been designed for high expression in B.subtilis. Gene expression under the promoter xylose can be induced by addition of xylose. The context with which we used the promoter xylose, was to take an input of xylose and give Polymerase Per Second(PoPS) as an output. Xylose does not induce the promoter xylose directly, but requires the transcriptional regulator XylR, (part K413036) This means that XylR must be constitutively expressed in B.subtilis in order to use the promoter xylose.
  • Source - The part was designed using the sequence from the B.subtilis genome and from previously published papers [1][2]. This sequence was then synthesised by Geneart.
  • Design - Biobrick standard was applied to the promoter xylose sequence.

References

  1. Kim L, Mogk A, and Schumann W. A xylose-inducible Bacillus subtilis integration vector and its application. Gene. 1996 Nov 28;181(1-2):71-6. DOI:10.1016/s0378-1119(96)00466-0 | PubMed ID:8973310 | HubMed [1]
  2. Härtl B, Wehrl W, Wiegert T, Homuth G, and Schumann W. Development of a new integration site within the Bacillus subtilis chromosome and construction of compatible expression cassettes. J Bacteriol. 2001 Apr;183(8):2696-9. DOI:10.1128/JB.183.8.2696-2699.2001 | PubMed ID:11274134 | HubMed [2]

All Medline abstracts: PubMed | HubMed

Promoter gsiB

  • Part name = promoter gsiB
  • Sequence =
  • Promoter gsiB is a sigma factor B dependent promoter found in B.subtilis. In B.subtilis endogenous sigma factor B is activated under mild stress from nutrient and physical stress response. The context with which we used the promoter gsiB, was to take blue light as an input and give Polymerase Per Second(PoPS) as an output.


  • Promoter gsiB is a sigma factor B dependent promoter found in B.subtilis. In B.subtilis endogenous sigma factor B is activated under mild stress. These mild stress conditions can be generally split into nutrient stress response and physical stress response. Nutrient stress response is triggered by low levels of ATP and GTP and physical stress response is triggered by exposure to blue light, salt, heat, acid or ethanol[1]. The promoter gsiB has been used previously as a read out for the activation of sigma factor B [2].
  • The context with which we used the promoter gsiB, was to take blue light as an input and give Polymerase Per Second(PoPS) as an output. To do this the other potential inputs need to be carefully controlled so that only blue light activated the sigma B and gives a PoPS output. In order to get sufficient sigma B activation by blue light the light receptor YtvA, part...., needs to be over expressed in B.subtilis [3].


  • Source - The part was designed using the sequence from the B.subtilis genome and from previously published papers [2][3]. This sequence was then synthesised by Geneart.
  • Design - Biobrick standard was applied to the promoter gsiB sequence.

References

  1. Zhang S and Haldenwang WG. Contributions of ATP, GTP, and redox state to nutritional stress activation of the Bacillus subtilis sigmaB transcription factor. J Bacteriol. 2005 Nov;187(22):7554-60. DOI:10.1128/JB.187.22.7554-7560.2005 | PubMed ID:16267279 | HubMed [1]
  2. Nguyen HD, Nguyen QA, Ferreira RC, Ferreira LC, Tran LT, and Schumann W. Construction of plasmid-based expression vectors for Bacillus subtilis exhibiting full structural stability. Plasmid. 2005 Nov;54(3):241-8. DOI:10.1016/j.plasmid.2005.05.001 | PubMed ID:16005967 | HubMed [2]
  3. Suzuki N, Takaya N, Hoshino T, and Nakamura A. Enhancement of a sigma(B)-dependent stress response in Bacillus subtilis by light via YtvA photoreceptor. J Gen Appl Microbiol. 2007 Apr;53(2):81-8. DOI:10.2323/jgam.53.81 | PubMed ID:17575448 | HubMed [3]

All Medline abstracts: PubMed | HubMed

Promoter 43

  • Part name = promoter P43
  • Sequence =
  • Promoter P43 is constitutive promoter found in B.subtilis. The context with which we used the promoter P43 is as a Polymerase Per Second (PoPS) generator.


  • Promoter 43 is a constitutive promoter that constitutively expresses the P43 protein in B.subtilis. This promoter has been shown to be recognized and active during the exponential and lag phases of growth. It has been hypothesized that the ability to recognize the promoter in exponential and lag phase of growth is due to the recognition of the promoter by both sigma factor 55 (the major sigma factor) and sigma factor 37 (the lag phase sigma factor)[1]. The P43 promoter has been previously used for constitutive expression of exogenous genes within B.subtilis vectors[2].
  • The context with which we used the promoter P43 is as a Polymerase Per Second (PoPS) generator.


  • Source - The part was designed using the sequence from the B.subtilis genome and from previously published papers [2]. This sequence was then synthesised by Geneart.
  • Design - The biobrick part was designed to include the binding sites for both the sigma factor 55 and 37. In addition the biobrick standard was applied to the promoter P43 sequence.

References

  1. Zhang XZ, Cui ZL, Hong Q, and Li SP. High-level expression and secretion of methyl parathion hydrolase in Bacillus subtilis WB800. Appl Environ Microbiol. 2005 Jul;71(7):4101-3. DOI:10.1128/AEM.71.7.4101-4103.2005 | PubMed ID:16000826 | HubMed [1]
  2. Wang PZ and Doi RH. Overlapping promoters transcribed by bacillus subtilis sigma 55 and sigma 37 RNA polymerase holoenzymes during growth and stationary phases. J Biol Chem. 1984 Jul 10;259(13):8619-25. PubMed ID:6330116 | HubMed [2]

All Medline abstracts: PubMed | HubMed

Promoter Pveg

  • Part name = promoter Pveg
  • Sequence =
  • Pveg constitutive promoter for B.subtilis.


  • Pveg is a constitutive promoter that constitutively expresses the P43 protein in B.subtilis. Pveg contains binding sites for the B.sutbilis major sigma factor[1]. Pveg in B.subtilis utilises two binding sites to cause high expression of genes[2], however our Pveg is lacking the upstream site to give a medium level of gene expression. It has been noted that the sporulation master regulatoion factor spoOA interacts with Pveg though it is not known how[3].
  • The context with which we used the promoter Pveg is as a Polymerase Per Second (PoPS) generator.
  • Source - The Pveg promoter was suggested to us by Dr. Jan-Willem Veening of Newcastle University. This sequence supplied was compared to that of the DBTBS database[3] then a section containing the binding site synthesised by Geneart.
  • Design - The biobrick part was designed to include a single binding site for the B.subtilis major sigma factor. In addition the biobrick standard was applied to the promoter Pveg sequence.

References

  1. Moran CP Jr, Lang N, LeGrice SF, Lee G, Stephens M, Sonenshein AL, Pero J, and Losick R. Nucleotide sequences that signal the initiation of transcription and translation in Bacillus subtilis. Mol Gen Genet. 1982;186(3):339-46. DOI:10.1007/BF00729452 | PubMed ID:6181373 | HubMed [1]
  2. Le Grice SF and Sonenshein AL. Interaction of Bacillus subtilis RNA polymerase with a chromosomal promoter. J Mol Biol. 1982 Dec 15;162(3):551-64. DOI:10.1016/0022-2836(82)90388-6 | PubMed ID:6820069 | HubMed [2]
  3. Molle V, Fujita M, Jensen ST, Eichenberger P, González-Pastor JE, Liu JS, and Losick R. The Spo0A regulon of Bacillus subtilis. Mol Microbiol. 2003 Dec;50(5):1683-701. DOI:10.1046/j.1365-2958.2003.03818.x | PubMed ID:14651647 | HubMed [3]
  4. Sierro N, Makita Y, de Hoon M, and Nakai K. DBTBS: a database of transcriptional regulation in Bacillus subtilis containing upstream intergenic conservation information. Nucleic Acids Res. 2008 Jan;36(Database issue):D93-6. DOI:10.1093/nar/gkm910 | PubMed ID:17962296 | HubMed [4]

All Medline abstracts: PubMed | HubMed

RBS

Integration Sequences

AmyE

5'

Name: 5’ AmyE Integration Sequence

Code: BBa_K143001

Sequence:

Short: 5’ integration sequence for the AmyE locus of B.subtilis

Long: Integration sequences allow DNA to be incorporated into the chromosome of a host cell at a specific locus using leading (5') and trailing (3') DNA sequences that are the same as those at a specific locus of the chromosome.The 5' integration sequence can be added to the front of a Biobrick construct and the 3' integration sequence specific for this locus (Part BBa_K143002) to the rear of the Biobrick construct to allow integration of the Biobrick construct into the chromosome of the gram positive bacterium B.subtilis.

The AmyE locus was the first locus used for integration into B.subtilis by Shimotsu and Henner[1] and is still commonly used in vectors such as pDR111[2], pDL[3] and their derivatives. Integration at the AmyE locus removes the ability of B.subtilis to break down starch, which can be assayed with iodine as described by Cutting and Vander-horn[4]. The 5' and 3' integration sequences for the AmyE locus were used to integrate the Imperial 2008 iGEM project primary construct into the B.sutbilis chromosome.

Source: The 5’ integration sequence was taken from the shuttle vector pDR111 which has been used in many studies on B.subtilis, in particular in the studies of transcriptional control[2, 5, 6]

Design: The AmyE integration sequence was taken from the vector after comparison by BLAST to the B.subtilis chromosome to identify the homologous sequences. The sequence present in both the host chromosome and the plasmid at the 5' end of the gene is the 5' sequence required for integration

References

  1. Shimotsu H and Henner DJ. Construction of a single-copy integration vector and its use in analysis of regulation of the trp operon of Bacillus subtilis. Gene. 1986;43(1-2):85-94. DOI:10.1016/0378-1119(86)90011-9 | PubMed ID:3019840 | HubMed [1]
  2. Nakano S, Küster-Schöck E, Grossman AD, and Zuber P. Spx-dependent global transcriptional control is induced by thiol-specific oxidative stress in Bacillus subtilis. Proc Natl Acad Sci U S A. 2003 Nov 11;100(23):13603-8. DOI:10.1073/pnas.2235180100 | PubMed ID:14597697 | HubMed [2]
  3. Bacillus Genetic Stock Center [www.bgsc.org]

    [3]
  4. Cutting, S M.; Vander-Horn, P B. Genetic analysis. In: Harwood C R, Cutting S M. , editors. Molecular biological methods for Bacillus. Chichester, England: John Wiley & Sons, Ltd.; 1990. pp. 27–74.

    [4]
  5. Erwin KN, Nakano S, and Zuber P. Sulfate-dependent repression of genes that function in organosulfur metabolism in Bacillus subtilis requires Spx. J Bacteriol. 2005 Jun;187(12):4042-9. DOI:10.1128/JB.187.12.4042-4049.2005 | PubMed ID:15937167 | HubMed [5]
  6. Britton RA, Eichenberger P, Gonzalez-Pastor JE, Fawcett P, Monson R, Losick R, and Grossman AD. Genome-wide analysis of the stationary-phase sigma factor (sigma-H) regulon of Bacillus subtilis. J Bacteriol. 2002 Sep;184(17):4881-90. DOI:10.1128/JB.184.17.4881-4890.2002 | PubMed ID:12169614 | HubMed [6]

All Medline abstracts: PubMed | HubMed

3'

Name: 3’ AmyE Integration Sequence

Code: BBa_K143002

Sequence:

Short: 3’ integration sequence for the AmyE locus of B.subtilis

Long: Integration sequences allow DNA to be incorporated into the chromosome of a host cell at a specific locus using leading (5') and trailing (3') DNA sequences that are the same as those at a specific locus of the chromosome. The 5' integration sequence can be added to the front of a Biobrick construct and the 3' integration sequence specific for this locus (Part BBa_K143001) to the rear of the Biobrick construct to allow integration of the Biobrick construct into the chromosome of the gram positive bacterium B.subtilis.

The AmyE locus was the first locus used for integration into B.subtilis by Shimotsu and Henner[1] and is still commonly used in vectors such as pDR111[2], pDL[3] and their derivatives. Integration at the AmyE locus removes the ability of B.subtilis to break down starch, which can be assayed with iodine as described by Cutting and Vander-horn[4]. The 5' and 3' integration sequences for the AmyE locus were used to integrate the Imperial 2008 iGEM project primary construct into the B.sutbilis chromosome.

Source: The 3’ integration sequence was taken from the shuttle vector pDR111 which has been used in many studies on B.subtilis, in particular in the studies of transcriptional control[2, 5, 6]

Design: The AmyE integration sequence was taken from the vector after comparison by BLAST to the B.subtilis chromosome to identify the homologous sequences. The sequence present in both the host chromosome and the plasmid at the 3' end of the gene is the 3' sequence required for integration

References

  1. Shimotsu H and Henner DJ. Construction of a single-copy integration vector and its use in analysis of regulation of the trp operon of Bacillus subtilis. Gene. 1986;43(1-2):85-94. DOI:10.1016/0378-1119(86)90011-9 | PubMed ID:3019840 | HubMed [1]
  2. Nakano S, Küster-Schöck E, Grossman AD, and Zuber P. Spx-dependent global transcriptional control is induced by thiol-specific oxidative stress in Bacillus subtilis. Proc Natl Acad Sci U S A. 2003 Nov 11;100(23):13603-8. DOI:10.1073/pnas.2235180100 | PubMed ID:14597697 | HubMed [2]
  3. Bacillus Genetic Stock Center [www.bgsc.org]

    [3]
  4. Cutting, S M.; Vander-Horn, P B. Genetic analysis. In: Harwood C R, Cutting S M. , editors. Molecular biological methods for Bacillus. Chichester, England: John Wiley & Sons, Ltd.; 1990. pp. 27–74.

    [4]
  5. Erwin KN, Nakano S, and Zuber P. Sulfate-dependent repression of genes that function in organosulfur metabolism in Bacillus subtilis requires Spx. J Bacteriol. 2005 Jun;187(12):4042-9. DOI:10.1128/JB.187.12.4042-4049.2005 | PubMed ID:15937167 | HubMed [5]
  6. Britton RA, Eichenberger P, Gonzalez-Pastor JE, Fawcett P, Monson R, Losick R, and Grossman AD. Genome-wide analysis of the stationary-phase sigma factor (sigma-H) regulon of Bacillus subtilis. J Bacteriol. 2002 Sep;184(17):4881-90. DOI:10.1128/JB.184.17.4881-4890.2002 | PubMed ID:12169614 | HubMed [6]

All Medline abstracts: PubMed | HubMed

EpsE

5'

Name: 5’ EpsE Integration Sequence

Code: BBa_K143005

Sequence:

Short: 5’ Integration Sequence for the EpsE locus of B.subtilis

Long: Integration sequences allow DNA to be incorporated into the chromosome of a host cell at a specific locus using leading (5') and trailing (3') DNA sequences that are the same as those at a specific locus of the chromosome.The 5' integration sequence can be added to the front of a Biobrick construct and the 3' integration sequence specific for this locus (Part BBa_K143006) to the rear of the Biobrick construct to allow integration of the Biobrick construct into the chromosome of the gram positive bacterium B.subtilis.

The EpsE (aka YveO) locus has to our knowledge never been used for integration into B.subtilis before, but is useful in that it knocks out the potential molecular clutch EpsE gene [1]. In particular, both the 5' and 3' integration sequences for the EpsE locus conatin in-frame stop codons to prevent translation of the gene (if nothing is integrated into the locus, integration also prevents correct EpsE expression). The 5' and 3' integration sequences for the EpsE locus were used to integrate over the EpsE gene and prevent its expression in the Imperial 2008 iGEM project B.sutbilis host.

Source: The 5’ integration sequence was taken from the B.subtilis chromosome and is homologous to the chromosme from a few hundred bp upstream of the gene's start codon until 300 bp into the gene. It was produced by PCR cloning with Pfu

Design: The EpsE integration sequences were designed from the EpsE (aka YveO) gene's Genbank entry[2] and identification of the sequence directly upstream of the gene on the chromosome (found using NCBI's sequence viewer[3]). The upstream and EpsE gene sequence was analysed for restriction sites and primers (with biobrick prefix and suffix sequences) for two approximately equally sized integration sequences were desgined. The integration sequences were then produced by PCR cloning with Pfu

References

  1. [1]
  2. [2]
  3. [3]

3'

Name: 3’ EpsE Integration Sequence

Code: BBa_K143006

Sequence:

Short: 3’ Integration Sequence for the EpsE locus of B.subtilis

Long: Integration sequences allow DNA to be incorporated into the chromosome of a host cell at a specific locus using leading (5') and trailing (3') DNA sequences that are the same as those at a specific locus of the chromosome. The 5' integration sequence can be added to the front of a Biobrick construct and the 3' integration sequence specific for this locus (Part BBa_K143005) to the rear of the Biobrick construct to allow integration of the Biobrick construct into the chromosome of the gram positive bacterium B.subtilis.

The EpsE (aka YveO) locus has to our knowledge never been used for integration into B.subtilis before, but is useful in that it knocks out the potential molecular clutch EpsE gene [1]. In particular, both the 5' and 3' integration sequences for the EpsE locus conatin in-frame stop codons to prevent translation of the gene (if nothing is integrated into the locus, integration also prevents correct EpsE expression). The 5' and 3' integration sequences for the EpsE locus were used to integrate over the EpsE gene and prevent its expression in the Imperial 2008 iGEM project B.sutbilis host.

Source: The 3’ integration sequence was taken from the B.subtilis chromosome and is homologous to the middle section of the EpsE gene. It was produced by PCR cloning with Pfu

Design: The EpsE integration sequences were designed from the EpsE (aka YveO) gene's Genbank entry[2] and identification of the sequence directly upstream of the gene on the chromosome (found using NCBI's sequence viewer[3]). The upstream and EpsE gene sequence was analysed for restriction sites and primers (with biobrick prefix and suffix sequences) for two approximately equally sized integration sequences were desgined. The integration sequences were then produced by PCR cloning with Pfu

References

  1. [1]
  2. [2]
  3. [3]

Coding Regions

EspE

Antibiotics

Biomaterials & Signal Peptides

EAK16-II

Name: EAK16-II

Code: BBa_K413040

Sequence:

Description: EAK16-II is a sixteen amino acid long peptide that self-assembles to form β-sheet structures in aqueous medium. The alternating positive and negative charges (--++--++) are responsible for creating an electrostatic attraction between adjacent peptides. Self-assembly is triggered when the EAK16-II peptides are exposed to physiological media or salt solution.

When examined under SEM, a well-ordered nanofibre structure is formed by the association of the EAK16-II peptides and these nanofibres can futher aggregate to form a membranous 3D scaffold.

Source: EAK16-II was identified as a region in zuotin, a Z-DNA binding protein from the yeast genome.

Design: BioBrick standard was applied to EAK16-II.

Reference:

  1. Zhang S, Gelain F, and Zhao X. Designer self-assembling peptide nanofiber scaffolds for 3D tissue cell cultures. Semin Cancer Biol. 2005 Oct;15(5):413-20. DOI:10.1016/j.semcancer.2005.05.007 | PubMed ID:16061392 | HubMed [EAK16-II]

Human Elastin Polypeptide

Name: Construct EP20-24-24 for Human Elastin Polypeptide (EP)

Code: BBa_K413041

Sequence:

Description: Elastin is a polymeric extracellular matrix protein found in tissues that require the ability to extend and recoil. Examples of elastin-containing tissues include arteries, lungs, ligaments and skin.

Construct EP20-24-24 for human elastin polypeptide consists of distinct exons, which code for alternating hydrophobic regions and crosslinking domains, from the human elastin polypeptide gene.

Under appropriate conditions of temperature and ionic strength, elastin polypeptide undergoes a self-aggregation process known as coacervation. Coacervation is usually induced by an increase in temperature and causes the protein to separate from the solution as a second phase.Unlike most proteins, which undergo denaturation when the temperature of the solution increases, elastin polypeptides become more ordered through coacervation.

Source: All exons in Construct EP20-24-24 are derived from the human elastin polypeptide gene. Construct EP20-24-24 was used to study the effect of various combinations of exons on coacervation of elastin polypeptide.

Design: BioBrick standard was applied to Construct EP20-24-24 for Human Elastin Polypeptide (EP).

Reference:

  1. Bellingham CM, Woodhouse KA, Robson P, Rothstein SJ, and Keeley FW. Self-aggregation characteristics of recombinantly expressed human elastin polypeptides. Biochim Biophys Acta. 2001 Nov 26;1550(1):6-19. DOI:10.1016/s0167-4838(01)00262-x | PubMed ID:11738083 | HubMed [Elastin]
  2. Keeley FW, Bellingham CM, and Woodhouse KA. Elastin as a self-organizing biomaterial: use of recombinantly expressed human elastin polypeptides as a model for investigations of structure and self-assembly of elastin. Philos Trans R Soc Lond B Biol Sci. 2002 Feb 28;357(1418):185-9. DOI:10.1098/rstb.2001.1027 | PubMed ID:11911775 | HubMed [Elastin]

All Medline abstracts: PubMed | HubMed

SacB

Name: SacB Signal Peptide

Code: BBa_K413042


Design: BioBrick standard was applied to SacB signal peptide.


LipA

Name: LipA Signal Peptide

Code: BBa_K413044

Design: BioBrick standard was applied to LipA signal peptide.

Terminators

Composite Parts

Construction intermediates

Codes and associated parts

Note
  • Aad9 is the Spectinomycin resistance gene
  • RI - Resistance Integration Brick, P - Promoter, Pi - chemically inducible promoter, Pl - light inducible promoter, Bs - B.subtilis, PTC - Promoter Testing Construct
Code Part Code Part Code Part Code Part Code Part
K413000 K143001 5' AmyE K143002 3' AmyE K143003 5' PyrD K143004 3' PyrD
K413005 5' EpsE K143006 3'EpsE K143007 K143008 K143009
K413010 K143011 Promoter P43 K143012 Promoter Pveg K143013 Promoter Phyper-spank K143014 Promoter Pxyl
K413015 Promoter Pctc K143016 Promoter PgsiB K143017 K143018 K143019
K413020 K143021 gsiB RBS K143022 spoVG RBS K143023 K143024
K413025 K143026 K143027 K143028 K143029
K413030 K143031 Aad 9 K143032 EAK16? K143033 Elastin 20-21-23-24? K143034 EpsE
K413035 LacI K143036 XylR K143037 YtvA K143038 K143039
K413040 K143041 LipA? K143042 LipA-EAK16 K143043 LipA-Elastin K143044 SacB?
K413045 SacB-EAK16 K143046 SacB-Elastin K143047 K143048 K143049
K413050 P43-gsiB K143051 P43-spoVG K143052 Pveg-gsiB K143053 Pveg-spoVG K143054 Phyperspank-gsiB
K413055 Phyper-spank-spoVG K143056 Pxyl-gsiB K143057 Pxyl-spoVG K143058 Pctc-gsiB K143059 Pctc-spoVG
K413060 PgsiB-gsiB K143061 PgsiB-spoVG K143062 CAT - Terminator K143063 Aad9 - Terminator K143064 LacI - Terminator
K413065 XylR - Terminator K143066 3' RI Brick K143067 5'-P-RBS K143068 5'Pi-RBS K143069 5' Pl-RBS
K413070 Bs-PTC* K143071 K143072 K143073 K143074
K413075 K143076 K143077 K143078 K143079
K413080 K143081 K143082 K143083 K143084
K413085 K143086 K143087 K143088 K143089
K413090 K143091 K143092 K143093 K143094
K413095 K143096 K143097 K143098 K143099