Protein Details: ATP-sensitive inward rectifier potassium channel 14

Protein ID

ICDB_Pro_1676

Protein Name

ATP-sensitive inward rectifier potassium channel 14

Gene Name

KCNJ14; IRK4

Organism

Homo sapiens (Human)

Length

436 amino acids

AlphaFoldDB

AF-Q9UNX9-F1-model_v4.pdb

Function

Inward rectifier potassium channels are characterized by a greater tendency to allow potassium to flow into the cell rather than out of it. Their voltage dependence is regulated by the concentration of extracellular potassium; as external potassium is raised;the voltage range of the channel opening shifts to more positive voltages. The inward rectification is mainly due to the blockage of outward current by internal magnesium. KCNJ14 gives rise to low-conductance channels with a low affinity to the channel blockers Barium and Cesium (By similarity)

Sequence

MGLARALRRLSGALDSGDSRAGDEEEAGPGLCRNGWAPAPVQSPVGRRRGRFVKKDGHCNVRFVNLGGQGARYLSDLFTTCVDVRWRWMCLLFSCSFLASWLLFGLAFWLIASLHGDLAAPPPPAPCFSHVASFLAAFLFALETQTSIGYGVRSVTEECPAAVAAVVLQCIAGCVLDAFVVGAVMAKMAKPKKRNETLVFSENAVVALRDHRLCLMWRVGNLRRSHLVEAHVRAQLLQPRVTPEGEYIPLDHQDVDVGFDGGTDRIFLVSPITIVHEIDSASPLYELGRAELARADFELVVILEGMVEATAMTTQCRSSYLPGELLWGHRFEPVLFQRGSQYEVDYRHFHRTYEVPGTPVCSAKELDERAEQASHSLKSSFPGSLTAFCYENELALSCCQEEDEDDETEEGNGVETEDGAASPRVLTPTLALTLPP

PDB Structures

Ligand Binding

1. DICL_CP

2. DICL_Pep

Binding Site

Disease

Immunodeficiency and Andersen Cardiodysrhythmic Periodic Paralysis

Location

Expressed preferentially in retina.

DOI ID

10.1152/ajpcell.2000.279.3.c771; 10.1007/s003350010047; 10.1101/gr.2596504

RefSeq

NP_037480.1

Feature