7w6t

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CryoEM structure of human KChIP1-Kv4.3-DPP6 complexCryoEM structure of human KChIP1-Kv4.3-DPP6 complex

Structural highlights

7w6t is a 10 chain structure with sequence from Homo sapiens and Mus musculus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:Electron Microscopy, Resolution 3.85Å
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

KCIP1_HUMAN Regulatory subunit of Kv4/D (Shal)-type voltage-gated rapidly inactivating A-type potassium channels. Probably modulates channels density, inactivation kinetics and rate of recovery from inactivation in a calcium-dependent and isoform-specific manner. In vitro, modulates KCND1/Kv4.1 and KCND2/Kv4.2 currents. Seems to be involved in KCND2 trafficking to the cell surface.[1] [2] [3]

See Also

References

  1. An WF, Bowlby MR, Betty M, Cao J, Ling HP, Mendoza G, Hinson JW, Mattsson KI, Strassle BW, Trimmer JS, Rhodes KJ. Modulation of A-type potassium channels by a family of calcium sensors. Nature. 2000 Feb 3;403(6769):553-6. PMID:10676964 doi:10.1038/35000592
  2. Nakamura TY, Nandi S, Pountney DJ, Artman M, Rudy B, Coetzee WA. Different effects of the Ca(2+)-binding protein, KChIP1, on two Kv4 subfamily members, Kv4.1 and Kv4.2. FEBS Lett. 2001 Jun 22;499(3):205-9. PMID:11423117
  3. Shibata R, Misonou H, Campomanes CR, Anderson AE, Schrader LA, Doliveira LC, Carroll KI, Sweatt JD, Rhodes KJ, Trimmer JS. A fundamental role for KChIPs in determining the molecular properties and trafficking of Kv4.2 potassium channels. J Biol Chem. 2003 Sep 19;278(38):36445-54. Epub 2003 Jun 26. PMID:12829703 doi:10.1074/jbc.M306142200

7w6t, resolution 3.85Å

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OCA