KCNJ1 Gene Summary [Human]

Potassium channels are present in most mammalian cells, where they participate in a wide range of physiologic responses. The protein encoded by this gene is an integral membrane protein and inward-rectifier type potassium channel. It is activated by internal ATP and probably plays an important role in potassium homeostasis. The encoded protein has a greater tendency to allow potassium to flow into a cell rather than out of a cell. Mutations in this gene have been associated with antenatal Bartter syndrome, which is characterized by salt wasting, hypokalemic alkalosis, hypercalciuria, and low blood pressure. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

Details

Type
Protein Coding
Official Symbol
KCNJ1
Official Name
potassium inwardly rectifying channel subfamily J member 1 [Source:HGNC Symbol;Acc:HGNC:6255]
Ensembl ID
ENSG00000151704
Bio databases IDs NCBI: 3758 Ensembl: ENSG00000151704
Aliases potassium inwardly rectifying channel subfamily J member 1, ATP-sensitive inward rectifier potassium channel 1
Synonyms 70-pS, 70ps K+ channel, KAB-1, Kcnj, Kcnj1 v1, Kcnj1 v3, KIR1.1, LOC100910423, potassium inwardly rectifying channel subfamily J member 1, potassium inwardly-rectifying channel, subfamily J, member 1, ROMK, ROMK1, ROMK2, ROMK3
Species
Human, Homo sapiens
OrthologiesMouseRat

Protein Domains

A protein domain is a distinct structural or functional region within a protein that can evolve, function, and exist independently of the rest of the protein chain. These domains in human KCNJ1 often fold into stable, three-dimensional structures and are associated with specific biological functions, such as binding to DNA, other proteins, or small molecules.
  • potassium channel
  • peptide binding
  • inward rectifier potassium channel
  • cytoplasmic domain
  • Inward rectifier potassium channel C-terminal domain
  • phosphatidylinositol-4,5-bisphosphate binding
  • Inward rectifier potassium channel transmembrane domain
  • ATP-activated inward rectifier potassium channel
  • ATP binding
  • metal ion binding
  • ion channel

Pathways

Biological processes and signaling networks where the KCNJ1 gene in human plays a role, providing insight into its function and relevance in health or disease.

Top Findings

The most significant associations for this gene, including commonly observed domains, pathway involvement, and functional highlights based on current data.
binds
  • NHERF1
  • tolazamide
  • agmatine
  • glimepiride
  • acetohexamide
  • TNP-ATP
  • ABCC9
  • DLGAP1
  • phosphatidylinositol 4,5-bisphosphate
  • NHERF2
disease
  • non-insulin-dependent diabetes mellitus
  • diabetes mellitus
  • stroke
  • disorder of coronary artery
  • Bartter syndrome type 2
  • Bartter syndrome
  • polyuria
  • myocardial infarction
  • growth failure
  • polycystic kidney disease
regulated by
  • phosphatidylserine
  • phosphatidylinositol 4,5-bisphosphate
  • KLHL3
  • lipopolysaccharide
  • WNK4
  • IFNG
  • WNK1
  • oxophenylarsine
  • IL1B
  • glyburide
regulates
  • Na+
  • K+
  • KCNA
  • phosphate
  • KCNJ1
  • chloride
  • hormone
  • sodium chloride
role in cell
  • apoptosis
  • proliferation
  • response by
  • silencing
  • discharge

Subcellular Expression

Locations within the cell where the protein is known or predicted to be active, providing insight into its function and cellular context.
  • Plasma Membrane
  • cell surface
  • cell periphery
  • cellular membrane
  • Golgi Apparatus
  • Endoplasmic Reticulum
  • apical membrane

Gene Ontology Annotations

Describes the biological processes, cellular components, and molecular functions associated with the human KCNJ1 gene, providing context for its role in the cell.

Biological Process

Functions and activities the gene product is involved in
  • regulation of ion transmembrane transport

Cellular Component

Where in the cell the gene product is active
  • ion channel complex
  • plasma membrane

Molecular Function

What the gene product does at the molecular level
  • phosphatidylinositol-4,5-bisphosphate binding
  • ATP binding
  • inward rectifier potassium channel activity
  • ATP-activated inward rectifier potassium channel activity

Gene-Specific Assays for Results You Can Trust

Streamline your workflow with assays designed for this gene. Our targeted dPCR and qPCR assays help you generate meaningful data – efficiently and accurately.