2K21: PDB entry 2K21

NMR structure of human KCNE1 in LMPG micelles at pH 6.0 and 40 degree C. Determined by solution NMR. Released 9 Dec 2008.

Method
Solution NMR
Organism
Homo sapiens
Chains
1
Atoms
1,030
Mol. weight
15.71 kDa
Released
9 Dec 2008

Explore 2K21 in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

2K21 contains 7 α-helices and 0 β-strands across 1 chain. Residue ranges use author residue numbering, as in the PDB file, from PDBe. To see them in 3D, choose the Cartoon representation with Secondary structure coloring: helices, sheets and coils get different colors.

Chain A: 7 helices, 0 β-strands

ElementResiduesLengthSheet
α-helix4-96
α-helix13-2210
α-helix30-323
α-helix46-7126
α-helix92-10514
α-helix121-1244
α-helix126-1283

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
Potassium voltage-gated channel subfamily E memberAprotein138Homo sapiensP15382 (AlphaFold model)
Sequence of entity 1 (A), FASTA
>2K21_1 Potassium voltage-gated channel subfamily E member (chains A)
MGHHHHHHGMILSNTTAVTPFLTKLWQETVQQGGNMSGLARRSPRSGDGKLEALYVLMVL
GFFGFFTLGIMLSYIRSKKLEHSNDPFNVYIESDAWQEKDKAYVQARVLESYKSCYVVEN
HLAIEQPNTHLPETKPSP

Primary citation

Structure of KCNE1 and implications for how it modulates the KCNQ1 potassium channel. Kang, C., Tian, C., Sonnichsen, F.D. et al. Biochemistry (2008) 47:7999-8006. DOI 10.1021/bi800875q · PubMed

Other PDB entries of the same protein (UniProt P15382 (AlphaFold model), which also has an AlphaFold model), best resolution first:

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