KRAS Gene Summary [Human]

This gene, a Kirsten ras oncogene homolog from the mammalian ras gene family, encodes a protein that is a member of the small GTPase superfamily. A single amino acid substitution is responsible for an activating mutation. The transforming protein that results is implicated in various malignancies, including lung adenocarcinoma, mucinous adenoma, ductal carcinoma of the pancreas and colorectal carcinoma. Alternative splicing leads to variants encoding two isoforms that differ in the C-terminal region. [provided by RefSeq, Jul 2008]

Details

Type
Protein Coding
Official Symbol
KRAS
Official Name
KRAS proto-oncogene, GTPase [Source:HGNC Symbol;Acc:HGNC:6407]
Ensembl ID
ENSG00000133703
Bio databases IDs NCBI: 3845 Ensembl: ENSG00000133703
Aliases KRAS proto-oncogene, GTPase
Synonyms AI929937, CFC2, c-Ki-ras, c-Ki-ras2, c-Ki-ras p21, C-K-RAS, KI-RAS, KI-RAS4B, Kirsten rat sarcoma viral oncogene homolog, KRAS1, KRAS2, K-RAS2A, K-RAS2B, K-RAS B, KRAS proto-oncogene, GTPase, NS, NS3, OES, p21, p21B, p21ras, RALD, RAS, RASK2
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 KRAS often fold into stable, three-dimensional structures and are associated with specific biological functions, such as binding to DNA, other proteins, or small molecules.
  • phosphate binding domain
  • membrane-association domain
  • Ras family
  • protein binding activity, bridging
  • enzyme
  • identical protein binding
  • effector domain
  • Ras of Complex, Roc, domain of DAPkinase
  • Rho (Ras homology) subfamily of Ras-like small GTPases
  • P-loop containing Nucleoside Triphosphate Hydrolases
  • membrane targeting signal
  • farnesylation site
  • GTP binding domain
  • Small GTPase of the Ras superfamily (ill-defined subfamily)
  • LRR-domain binding
  • GTPase
  • protein binding
  • Ras subfamily of RAS small GTPases
  • kinase
  • GMP binding
  • polybasic membrane localization signal
  • binding protein
  • CAAX box
  • small GTP-binding protein domain
  • GDP binding
  • Rab subfamily of small GTPases
  • hypervariable region

Top Findings

The most significant associations for this gene, including commonly observed domains, pathway involvement, and functional highlights based on current data.
disease
  • metastatic rectal cancer
  • lymphoma
  • colorectal cancer
  • neoplasia
  • non-Hodgkin disease
  • adenoma
  • rheumatoid arthritis
  • epithelial cancer
  • epithelial neoplasia
  • cancer
regulated by
  • INHBA
  • ARS-1620
  • N-(4-aminobutyl)-5-chloro-2-naphthalenesulfonamide
  • doxorubicin
  • TCR (complex)
  • CD28
  • mifepristone
  • HRAS
  • PLAAT4
  • insulin
regulates
role in cell
  • epithelial-mesenchymal transition
  • damage in
  • number
  • production in
  • synthesis in
  • survival
  • expression in
  • phosphorylation in
  • differentiation
  • cell death

Subcellular Expression

Locations within the cell where the protein is known or predicted to be active, providing insight into its function and cellular context.
  • Cytoplasm
  • raft fractions
  • membrane fraction
  • perinuclear region
  • cellular membrane
  • Plasma Membrane
  • Mitochondria
  • cytosol
  • cytoplasmic face of plasma membrane
  • endoplasmic reticulum membrane
  • Golgi membrane
  • mitochondrial outer membrane
  • endosomal membrane
  • perinuclear space
  • cytosolic fraction

Gene Ontology Annotations

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

Biological Process

Functions and activities the gene product is involved in
  • positive regulation of Rac protein signal transduction
  • Rac protein signal transduction
  • epithelial tube branching involved in lung morphogenesis
  • positive regulation of glial cell proliferation
  • forebrain astrocyte development
  • visual learning
  • Ras protein signal transduction
  • negative regulation of neuron apoptotic process
  • MAPK cascade
  • negative regulation of epithelial cell differentiation
  • striated muscle cell differentiation
  • skeletal muscle cell differentiation
  • regulation of long-term neuronal synaptic plasticity
  • homeostasis of number of cells within a tissue
  • positive regulation of gene expression
  • Type I pneumocyte differentiation
  • positive regulation of protein phosphorylation
  • gene expression
  • glial cell proliferation
  • regulation of synaptic transmission, GABAergic
  • actin cytoskeleton organization
  • neuron apoptotic process

Cellular Component

Where in the cell the gene product is active
  • endoplasmic reticulum membrane
  • focal adhesion
  • cytoplasm
  • membrane
  • cytosol
  • Golgi membrane
  • mitochondrial outer membrane
  • plasma membrane
  • internal side of plasma membrane

Molecular Function

What the gene product does at the molecular level
  • GTP binding
  • protein binding
  • protein anchor
  • GTPase activity
  • small monomeric GTPase activity
  • GDP binding

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.