User:Helen C. Lai: Difference between revisions
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[[Image:IMG 2508b.jpg|thumb|right|350px|Frame|]] | {{template:Jane Johnson Lab_top}}<br> | ||
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[[Image:IMG 2508b.jpg|thumb|right|350px|Frame|What lies beyond?]] | |||
== Biography == | == Biography == | ||
Postdoc in the [[ | *UC San Francisco, Ph.D. in the Laboratory of Dr. Lily Jan<br> | ||
*Postdoc in the [[Jane Johnson Lab| Johnson Lab]]<br> | |||
== Research Interests == | == Research Interests == | ||
Ion Channels and Developmental Neuroscience | '''Ion Channels'''<br> | ||
For my graduate work, I determined structural constraints for the hyperpolarized state of the six-transmembrane voltage-gated potassium (Kv) channel, KAT1, from Arabidopsis thaliana. I conducted a conditional lethal/second-site suppressor screen that identified mutations in close proximity as determined by the rescue of functional channels in a yeast growth assay. A structural model of Kv channel packing emerged from these constraints that withstands experimental verification. This model together with existing data lends mechanistic insight into the structure and mechanism of voltage-gated ion channels. | |||
'''Developmental Neuroscience'''<br> | |||
I am currently trying to determine the transcriptional regulatory code and downstream targets of Atoh1, a basic helix-loop-helix (bHLH) transcription factor involved in differentiation and cell type specification of neurons in the spinal cord and cerebellum. | |||
== Publications == | == Publications == | ||
*Lai H.C., Johnson J.E. Neurogenesis or neuronal specification: Phosphorylation strikes again! 2008. Neuron. 58(1):3-5. (Preview) PMID 18400155 | |||
*Panteleeva I., Boutillier S., See V., Spiller D.G., Rouaux C., Almouzni G., Bailly D., Maison C., Lai H.C., Loeffler J.P., Boutillier A.L. HP1alpha guides neuronal fate by timing E2F-targeted genes silencing during terminal differentiation. 2007. EMBO J. 26(15): 3616-28. PMID 17627279 | |||
*Grabe M.*, Lai H.C.*, Jain M., Jan Y.N., Jan L.Y. Structure prediction for the down state of a potassium channel voltage sensor. 2007. Nature. 445(7127): 550-553. * Equal contribution. PMID 17187053 | |||
*Lai H.C., Jan L.Y. The distribution and targeting of neuronal voltage-gated ion channels. 2006. Nature Reviews Neuroscience. 7(7): 548-562. PMID 16791144 | |||
*Lai H.C., Grabe M., Jan Y.N., Jan L.Y. The S4 voltage sensor packs against the pore domain in the KAT1 voltage-gated potassium channel. 2005. Neuron. 47(3):395-406. PMID 16055063 | |||
*Serber Z., Lai H.C., Yang A., Ou H.D., Sigal M.S., Kelly A.E., Darimont B.D., Duijf P.H., Van Bokhoven H., McKeon F., Dötsch V. A C-terminal inhibitory domain controls the activity of p63 by an intramolecular mechanism. 2002. Mol. Cell Biol. 22(24):8601-11. PMID 12446779 | |||
*Ou H.D., Lai H.C., Serber Z., Dötsch V. Efficient identification of amino acid types for fast protein backbone assignments. 2001. J. Biomol. NMR. 21(3):269-73. PMID 11775743 | |||
== Contact info == | == Contact info == | ||
Latest revision as of 15:10, 9 February 2009
|
Biography
- UC San Francisco, Ph.D. in the Laboratory of Dr. Lily Jan
- Postdoc in the Johnson Lab
Research Interests
Ion Channels
For my graduate work, I determined structural constraints for the hyperpolarized state of the six-transmembrane voltage-gated potassium (Kv) channel, KAT1, from Arabidopsis thaliana. I conducted a conditional lethal/second-site suppressor screen that identified mutations in close proximity as determined by the rescue of functional channels in a yeast growth assay. A structural model of Kv channel packing emerged from these constraints that withstands experimental verification. This model together with existing data lends mechanistic insight into the structure and mechanism of voltage-gated ion channels.
Developmental Neuroscience
I am currently trying to determine the transcriptional regulatory code and downstream targets of Atoh1, a basic helix-loop-helix (bHLH) transcription factor involved in differentiation and cell type specification of neurons in the spinal cord and cerebellum.
Publications
- Lai H.C., Johnson J.E. Neurogenesis or neuronal specification: Phosphorylation strikes again! 2008. Neuron. 58(1):3-5. (Preview) PMID 18400155
- Panteleeva I., Boutillier S., See V., Spiller D.G., Rouaux C., Almouzni G., Bailly D., Maison C., Lai H.C., Loeffler J.P., Boutillier A.L. HP1alpha guides neuronal fate by timing E2F-targeted genes silencing during terminal differentiation. 2007. EMBO J. 26(15): 3616-28. PMID 17627279
- Grabe M.*, Lai H.C.*, Jain M., Jan Y.N., Jan L.Y. Structure prediction for the down state of a potassium channel voltage sensor. 2007. Nature. 445(7127): 550-553. * Equal contribution. PMID 17187053
- Lai H.C., Jan L.Y. The distribution and targeting of neuronal voltage-gated ion channels. 2006. Nature Reviews Neuroscience. 7(7): 548-562. PMID 16791144
- Lai H.C., Grabe M., Jan Y.N., Jan L.Y. The S4 voltage sensor packs against the pore domain in the KAT1 voltage-gated potassium channel. 2005. Neuron. 47(3):395-406. PMID 16055063
- Serber Z., Lai H.C., Yang A., Ou H.D., Sigal M.S., Kelly A.E., Darimont B.D., Duijf P.H., Van Bokhoven H., McKeon F., Dötsch V. A C-terminal inhibitory domain controls the activity of p63 by an intramolecular mechanism. 2002. Mol. Cell Biol. 22(24):8601-11. PMID 12446779
- Ou H.D., Lai H.C., Serber Z., Dötsch V. Efficient identification of amino acid types for fast protein backbone assignments. 2001. J. Biomol. NMR. 21(3):269-73. PMID 11775743
Contact info
Helen C. Lai
Department of Neuroscience
UT Southwestern Medical Center
5323 Harry Hines Blvd., NA 4-146
Dallas, TX 75390-9111
Helen.Lai@utsouthwestern.edu
Lab 214-648-1874
