U.S. flag

An official website of the United States government

Format

Send to:

Choose Destination

Links from GEO Profiles

    • Showing Current items.

    KRAS KRAS proto-oncogene, GTPase [ Homo sapiens (human) ]

    Gene ID: 3845, updated on 13-Apr-2024

    Summary

    Official Symbol
    KRASprovided by HGNC
    Official Full Name
    KRAS proto-oncogene, GTPaseprovided by HGNC
    Primary source
    HGNC:HGNC:6407
    See related
    Ensembl:ENSG00000133703 MIM:190070; AllianceGenome:HGNC:6407
    Gene type
    protein coding
    RefSeq status
    REVIEWED
    Organism
    Homo sapiens
    Lineage
    Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
    Also known as
    NS; NS3; OES; CFC2; RALD; K-Ras; KRAS1; KRAS2; RASK2; KI-RAS; C-K-RAS; K-RAS2A; K-RAS2B; K-RAS4A; K-RAS4B; K-Ras 2; 'C-K-RAS; c-Ki-ras; c-Ki-ras2
    Summary
    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]
    Expression
    Ubiquitous expression in colon (RPKM 7.8), brain (RPKM 7.5) and 25 other tissues See more
    Orthologs
    NEW
    Try the new Gene table
    Try the new Transcript table

    Genomic context

    See KRAS in Genome Data Viewer
    Location:
    12p12.1
    Exon count:
    7
    Annotation release Status Assembly Chr Location
    RS_2023_10 current GRCh38.p14 (GCF_000001405.40) 12 NC_000012.12 (25205246..25250929, complement)
    RS_2023_10 current T2T-CHM13v2.0 (GCF_009914755.1) 12 NC_060936.1 (25076496..25122152, complement)
    105.20220307 previous assembly GRCh37.p13 (GCF_000001405.25) 12 NC_000012.11 (25358180..25403863, complement)

    Chromosome 12 - NC_000012.12Genomic Context describing neighboring genes Neighboring gene inositol 1,4,5-triphosphate receptor associated 2 Neighboring gene Neanderthal introgressed variant-containing enhancer experimental_26664 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr12:25288649-25289148 Neighboring gene dynein axonemal intermediate chain 7 Neighboring gene OCT4-NANOG hESC enhancer GRCh37_chr12:25321883-25322516 Neighboring gene ReSE screen-validated silencer GRCh37_chr12:25323195-25323341 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 6115 Neighboring gene uncharacterized LOC124902899 Neighboring gene electron transfer flavoprotein regulatory factor 1 Neighboring gene Neanderthal introgressed variant-containing enhancer experimental_26705 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 4293 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 4294 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 6116 Neighboring gene NFE2L2 motif-containing MPRA enhancer 301/302 Neighboring gene uncharacterized LOC105369701 Neighboring gene NANOG-H3K27ac hESC enhancer GRCh37_chr12:25517951-25518546 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr12:25522046-25522546 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr12:25522547-25523047 Neighboring gene NANOG-H3K27ac-H3K4me1 hESC enhancer GRCh37_chr12:25538426-25539295 Neighboring gene RNA, U4 small nuclear 67, pseudogene

    Genomic regions, transcripts, and products

    Expression

    • Project title: HPA RNA-seq normal tissues
    • Description: RNA-seq was performed of tissue samples from 95 human individuals representing 27 different tissues in order to determine tissue-specificity of all protein-coding genes
    • BioProject: PRJEB4337
    • Publication: PMID 24309898
    • Analysis date: Wed Apr 4 07:08:55 2018

    Bibliography

    GeneRIFs: Gene References Into Functions

    What's a GeneRIF?

    Phenotypes

    Associated conditions

    Description Tests
    Acute myeloid leukemia Compare labs
    Autoimmune lymphoproliferative syndrome type 4
    MedGen: C2674723 OMIM: 614470 GeneReviews: Not available
    Compare labs
    Carcinoma of pancreas
    MedGen: C0235974 OMIM: 260350 GeneReviews: Not available
    Compare labs
    Cardiofaciocutaneous syndrome 2
    MedGen: C3809005 OMIM: 615278 GeneReviews: Cardiofaciocutaneous Syndrome
    Compare labs
    Cerebral arteriovenous malformation
    MedGen: C0917804 OMIM: 108010 GeneReviews: Not available
    Compare labs
    Cetuximab response
    MedGen: CN077967 GeneReviews: Not available
    Compare labs
    Familial cancer of breast Compare labs
    Linear nevus sebaceous syndrome
    MedGen: C4552097 OMIM: 163200 GeneReviews: Not available
    Compare labs
    Lung cancer
    MedGen: C0242379 OMIM: 211980 GeneReviews: Not available
    Compare labs
    Malignant tumor of urinary bladder
    MedGen: C0005684 OMIM: 109800 GeneReviews: Not available
    Compare labs
    Noonan syndrome 3
    MedGen: C1860991 OMIM: 609942 GeneReviews: Noonan Syndrome
    Compare labs
    Panitumumab response
    MedGen: CN077999 GeneReviews: Not available
    Compare labs
    Stomach cancer
    MedGen: C0024623 OMIM: 613659 GeneReviews: Not available
    Compare labs
    Toriello-Lacassie-Droste syndrome
    MedGen: C1838329 OMIM: 600268 GeneReviews: Not available
    Compare labs

    HIV-1 interactions

    Protein interactions

    Protein Gene Interaction Pubs
    Envelope surface glycoprotein gp120 env HIV-1 gp120 upregulates the expression of Kirsten rat sarcoma viral oncogene homolog (KRAS) in human B cells PubMed
    Envelope surface glycoprotein gp160, precursor env Pretreatment of cells with HIV-1 gp160 results in marked inhibition of tyrosine phosphorylation of p59(fyn), PLC-gamma1, ras activation, and TNF-alpha secretion in anti-CD3 mAb activated CD4+ T cells PubMed
    env HIV-1 gp160 alone or CD4/gp160 cross-linking induces tyrosine phosphorylation of intracellular substrates p59fyn, zap 70, and p95vav and also leads to ras activation PubMed
    Tat tat Treatment with HIV-1 Tat and cocaine activates Ras/Erk pathway in human pulmonary artery endothelial cells PubMed
    tat NOX4-mediated K-Ras activation on the ER endomembrane results in Tat-induced unfolded-protein response PubMed

    Go to the HIV-1, Human Interaction Database

    Pathways from PubChem

    Interactions

    Products Interactant Other Gene Complex Source Pubs Description

    General gene information

    Markers

    Gene Ontology Provided by GOA

    Function Evidence Code Pubs
    enables G protein activity IEA
    Inferred from Electronic Annotation
    more info
     
    enables GDP binding IBA
    Inferred from Biological aspect of Ancestor
    more info
     
    enables GTP binding IBA
    Inferred from Biological aspect of Ancestor
    more info
     
    enables GTPase activity IBA
    Inferred from Biological aspect of Ancestor
    more info
     
    enables GTPase activity IMP
    Inferred from Mutant Phenotype
    more info
    PubMed 
    enables GTPase activity TAS
    Traceable Author Statement
    more info
     
    enables protein binding IPI
    Inferred from Physical Interaction
    more info
    PubMed 
    enables protein-containing complex binding IDA
    Inferred from Direct Assay
    more info
    PubMed 
    enables protein-membrane adaptor activity IEA
    Inferred from Electronic Annotation
    more info
     
    Process Evidence Code Pubs
    involved_in MAPK cascade TAS
    Traceable Author Statement
    more info
     
    involved_in Rac protein signal transduction IEA
    Inferred from Electronic Annotation
    more info
     
    involved_in Ras protein signal transduction IBA
    Inferred from Biological aspect of Ancestor
    more info
     
    involved_in actin cytoskeleton organization IEA
    Inferred from Electronic Annotation
    more info
     
    involved_in epithelial tube branching involved in lung morphogenesis IEA
    Inferred from Electronic Annotation
    more info
     
    involved_in forebrain astrocyte development IEA
    Inferred from Electronic Annotation
    more info
     
    involved_in gene expression IEA
    Inferred from Electronic Annotation
    more info
     
    involved_in glial cell proliferation IEA
    Inferred from Electronic Annotation
    more info
     
    involved_in homeostasis of number of cells within a tissue IEA
    Inferred from Electronic Annotation
    more info
     
    involved_in negative regulation of epithelial cell differentiation IEA
    Inferred from Electronic Annotation
    more info
     
    involved_in negative regulation of neuron apoptotic process IEA
    Inferred from Electronic Annotation
    more info
     
    involved_in neuron apoptotic process IEA
    Inferred from Electronic Annotation
    more info
     
    involved_in positive regulation of Rac protein signal transduction IEA
    Inferred from Electronic Annotation
    more info
     
    involved_in positive regulation of gene expression IMP
    Inferred from Mutant Phenotype
    more info
    PubMed 
    involved_in positive regulation of glial cell proliferation IEA
    Inferred from Electronic Annotation
    more info
     
    involved_in positive regulation of protein phosphorylation IMP
    Inferred from Mutant Phenotype
    more info
    PubMed 
    involved_in regulation of long-term neuronal synaptic plasticity IEA
    Inferred from Electronic Annotation
    more info
     
    involved_in regulation of synaptic transmission, GABAergic IEA
    Inferred from Electronic Annotation
    more info
     
    involved_in skeletal muscle cell differentiation IEA
    Inferred from Electronic Annotation
    more info
     
    involved_in striated muscle cell differentiation IEA
    Inferred from Electronic Annotation
    more info
     
    involved_in type I pneumocyte differentiation IEA
    Inferred from Electronic Annotation
    more info
     
    involved_in visual learning IEA
    Inferred from Electronic Annotation
    more info
     
    Component Evidence Code Pubs
    located_in Golgi membrane TAS
    Traceable Author Statement
    more info
     
    located_in cytoplasm IDA
    Inferred from Direct Assay
    more info
    PubMed 
    located_in cytoplasmic side of plasma membrane IDA
    Inferred from Direct Assay
    more info
    PubMed 
    located_in cytosol TAS
    Traceable Author Statement
    more info
     
    located_in endoplasmic reticulum membrane TAS
    Traceable Author Statement
    more info
     
    located_in focal adhesion HDA PubMed 
    located_in membrane HDA PubMed 
    located_in mitochondrial outer membrane TAS
    Traceable Author Statement
    more info
     
    is_active_in plasma membrane IBA
    Inferred from Biological aspect of Ancestor
    more info
     
    located_in plasma membrane TAS
    Traceable Author Statement
    more info
     

    General protein information

    Preferred Names
    GTPase KRas
    Names
    K-ras p21 protein
    KRAS-ENOPH fusion
    Kirsten rat sarcoma viral oncogene homolog
    Kirsten rat sarcoma viral proto-oncogene
    Kras-Enoph1 fusion protein
    PR310 c-K-ras oncogene
    c-Kirsten-ras protein
    cellular c-Ki-ras2 proto-oncogene
    cellular transforming proto-oncogene
    oncogene KRAS2
    proto-oncogene GTPase
    transforming protein p21
    v-Ki-ras2 Kirsten rat sarcoma 2 viral oncogene homolog
    NP_001356715.1
    NP_001356716.1
    NP_004976.2
    NP_203524.1
    XP_047284782.1
    XP_054227990.1

    NCBI Reference Sequences (RefSeq)

    NEW Try the new Transcript table

    RefSeqs maintained independently of Annotated Genomes

    These reference sequences exist independently of genome builds. Explain

    These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.

    Genomic

    1. NG_007524.2 RefSeqGene

      Range
      5075..50758
      Download
      GenBank, FASTA, Sequence Viewer (Graphics), LRG_344

    mRNA and Protein(s)

    1. NM_001369786.1NP_001356715.1  GTPase KRas isoform a

      Status: REVIEWED

      Source sequence(s)
      AC087239, AC092794, KF459678
      Consensus CDS
      CCDS8703.1
      UniProtKB/Swiss-Prot
      A8K8Z5, B0LPF9, P01116, P01118, Q96D10
      UniProtKB/TrEMBL
      L7RSL8
      Conserved Domains (1) summary
      cd04138
      Location:3164
      H_N_K_Ras_like; Ras GTPase family containing H-Ras,N-Ras and K-Ras4A/4B
    2. NM_001369787.1NP_001356716.1  GTPase KRas isoform b

      Status: REVIEWED

      Source sequence(s)
      AC087239, AC092794
      Consensus CDS
      CCDS8702.1
      UniProtKB/TrEMBL
      A0A3G1LBH1
      Related
      ENSP00000508921.1, ENST00000685328.1
      Conserved Domains (1) summary
      cd04138
      Location:3164
      H_N_K_Ras_like; Ras GTPase family containing H-Ras,N-Ras and K-Ras4A/4B
    3. NM_004985.5NP_004976.2  GTPase KRas isoform b

      See identical proteins and their annotated locations for NP_004976.2

      Status: REVIEWED

      Description
      Transcript Variant: This variant (b) is composed of five exons and lacks exon 4a which the longer transcript variant (a) includes. This predominant variant (b) has a cds that terminates in exon 4b and encodes isoform b.
      Source sequence(s)
      AC092794, AK292510, M54968
      Consensus CDS
      CCDS8702.1
      UniProtKB/TrEMBL
      A0A3G1LBH1
      Related
      ENSP00000308495.3, ENST00000311936.8
      Conserved Domains (1) summary
      cd04138
      Location:3164
      H_N_K_Ras_like; Ras GTPase family containing H-Ras,N-Ras and K-Ras4A/4B
    4. NM_033360.4NP_203524.1  GTPase KRas isoform a

      See identical proteins and their annotated locations for NP_203524.1

      Status: REVIEWED

      Description
      Transcript Variant: This variant (a) is composed of six exons, including exon 4a, which the shorter transcript variant (b) lacks. This rare variant (a) has a cds that terminates in exon 4a and encodes a unique C-terminus, compared to isoform a.
      Source sequence(s)
      AC087239, AC092794, KF459678
      Consensus CDS
      CCDS8703.1
      UniProtKB/Swiss-Prot
      A8K8Z5, B0LPF9, P01116, P01118, Q96D10
      UniProtKB/TrEMBL
      L7RSL8
      Related
      ENSP00000256078.5, ENST00000256078.10
      Conserved Domains (1) summary
      cd04138
      Location:3164
      H_N_K_Ras_like; Ras GTPase family containing H-Ras,N-Ras and K-Ras4A/4B

    RefSeqs of Annotated Genomes: GCF_000001405.40-RS_2023_10

    The following sections contain reference sequences that belong to a specific genome build. Explain

    Reference GRCh38.p14 Primary Assembly

    Genomic

    1. NC_000012.12 Reference GRCh38.p14 Primary Assembly

      Range
      25205246..25250929 complement
      Download
      GenBank, FASTA, Sequence Viewer (Graphics)

    mRNA and Protein(s)

    1. XM_047428826.1XP_047284782.1  GTPase KRas isoform X1

    Alternate T2T-CHM13v2.0

    Genomic

    1. NC_060936.1 Alternate T2T-CHM13v2.0

      Range
      25076496..25122152 complement
      Download
      GenBank, FASTA, Sequence Viewer (Graphics)

    mRNA and Protein(s)

    1. XM_054372015.1XP_054227990.1  GTPase KRas isoform X1