1nn7
From Proteopedia
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| , resolution 2.1Å | |||||||
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| Ligands: | |||||||
| Gene: | Kcnd2 (Rattus norvegicus) | ||||||
| Related: | 1A68, 3KVT
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| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Crystal Structure Of The Tetramerization Domain Of The Shal Voltage-Gated Potassium Channel
Overview
We have developed a semiempirical algorithm called Family Values (FamVal), which identifies residues that encode functional specificity in a protein sequence. Given a multiple sequence alignment (MSA) grouped into functionally distinct subfamilies, FamVal calculates a specificity score for each subfamily at every amino acid position of an MSA. This algorithm was used to predict specificity-encoding positions within the tetramerization assembly (T1) domain of voltage-gated potassium (Kv) channel subfamilies Kv3 and Kv4. The importance of one such position (Arg to Ala at MSA position 93) was confirmed by in vitro pull-down assays. The structural basis of this assembly discrimination was elucidated by determining the crystal structure of the Kv4 T1 domain and comparing it to the Kv3 T1 domain.
About this Structure
1NN7 is a Single protein structure of sequence from Rattus norvegicus. Full crystallographic information is available from OCA.
Reference
Determining the basis of channel-tetramerization specificity by x-ray crystallography and a sequence-comparison algorithm: Family Values (FamVal)., Nanao MH, Zhou W, Pfaffinger PJ, Choe S, Proc Natl Acad Sci U S A. 2003 Jul 22;100(15):8670-5. Epub 2003 Jun 30. PMID:12835418
Page seeded by OCA on Sun Mar 30 22:32:44 2008
