Protein Details: Potassium channel subfamily K member 4

Protein ID

ICDB_Pro_0276

Protein Name

Potassium channel subfamily K member 4

Gene Name

Kcnk4; Traak

Organism

Mus musculus (Mouse)

Length

398 amino acids

AlphaFoldDB

AF-O88454-F1-model_v4.pdb

Function

Voltage-insensitive potassium channel. Channel opening is triggered by mechanical forces that deform the membrane. Channel opening is triggered by raising the intracellular pH to basic levels (By similarity). The channel is inactive at 24 degrees Celsius (in vitro); raising the temperature to 37 degrees Celsius increases the frequency of channel opening; with a further increase in channel activity when the temperature is raised to 42 degrees Celsius (By similarity). Plays a role in the sensory perception of pain caused by pressure. Plays a role in the perception of pain caused by heat.

Sequence

MRSTTLLALLALVLLYLVSGALVFQALEQPHEQQAQKKMDHGRDQFLRDHPCVSQKSLEDFIKLLVEALGGGANPETSWTNSSNHSSAWNLGSAFFFSGTIITTIGYGNIVLHTDAGRLFCIFYALVGIPLFGMLLAGVGDRLGSSLRRGIGHIEAIFLKWHVPPGLVRSLSAVLFLLIGCLLFVLTPTFVFSYMESWSKLEAIYFVIVTLTTVGFGDYVPGDGTGQNSPAYQPLVWFWILFGLAYFASVLTTIGNWLRAVSRRTRAEMGGLTAQAASWTGTVTARVTQRTGPSAPPPEKEQPLLPSSLPAPPAVVEPAGRPGSPAPAEKVETPSPPTASALDYPSENLAFIDESSDTQSERGCALPRAPRGRRRPNPSKKPSRPRGPGRLRDKAVPV

PDB Structures

Ligand Binding

1. DICL_CP

2. DICL_Pep

Binding Site

Disease

Location

Expressed in brain; spinal cord and eye. Not detected in heart; skeletal muscle; liver; lungs; kidney and testis.

DOI ID

10.1093/emboj/17.12.3297; 10.1038/8084; 10.1038/emboj.2009.57

RefSeq

NP_032457.1 [O88454-1]; XP_006526783.1 [O88454-1]

Feature