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    CYP11A1 cytochrome P450 family 11 subfamily A member 1 [ Homo sapiens (human) ]

    Gene ID: 1583, updated on 5-Mar-2024

    Summary

    Official Symbol
    CYP11A1provided by HGNC
    Official Full Name
    cytochrome P450 family 11 subfamily A member 1provided by HGNC
    Primary source
    HGNC:HGNC:2590
    See related
    Ensembl:ENSG00000140459 MIM:118485; AllianceGenome:HGNC:2590
    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
    CYP11A; CYPXIA1; P450SCC
    Summary
    This gene encodes a member of the cytochrome P450 superfamily of enzymes. The cytochrome P450 proteins are monooxygenases which catalyze many reactions involved in drug metabolism and synthesis of cholesterol, steroids and other lipids. This protein localizes to the mitochondrial inner membrane and catalyzes the conversion of cholesterol to pregnenolone, the first and rate-limiting step in the synthesis of the steroid hormones. Two transcript variants encoding different isoforms have been found for this gene. The cellular location of the smaller isoform is unclear since it lacks the mitochondrial-targeting transit peptide. [provided by RefSeq, Jul 2008]
    Expression
    Biased expression in adrenal (RPKM 261.9), placenta (RPKM 29.0) and 1 other tissue See more
    Orthologs
    NEW
    Try the new Gene table
    Try the new Transcript table

    Genomic context

    Location:
    15q24.1
    Exon count:
    10
    Annotation release Status Assembly Chr Location
    RS_2023_10 current GRCh38.p14 (GCF_000001405.40) 15 NC_000015.10 (74337762..74367646, complement)
    RS_2023_10 current T2T-CHM13v2.0 (GCF_009914755.1) 15 NC_060939.1 (72205513..72235390, complement)
    105.20220307 previous assembly GRCh37.p13 (GCF_000001405.25) 15 NC_000015.9 (74630103..74659987, complement)

    Chromosome 15 - NC_000015.10Genomic Context describing neighboring genes Neighboring gene coiled-coil domain containing 33 Neighboring gene uncharacterized LOC105370893 Neighboring gene CDK7 strongly-dependent group 2 enhancer GRCh37_chr15:74524367-74525566 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr15:74526358-74526954 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr15:74531317-74531912 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr15:74531913-74532508 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr15:74536295-74536796 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr15:74537297-74538296 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr15:74555642-74556474 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr15:74556475-74557305 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr15:74569034-74569758 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr15:74569759-74570483 Neighboring gene VISTA enhancer hs2614 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr15:74593043-74593864 Neighboring gene uncharacterized LOC124903525 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 9747 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr15:74611467-74612377 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 6645 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr15:74620529-74621030 Neighboring gene uncharacterized LOC124903524 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 6646 Neighboring gene CYP11A1 promoter region Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 6647 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 9748 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 6648 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr15:74667008-74667555 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 9749 Neighboring gene peptidylprolyl isomerase A pseudogene 46 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr15:74670820-74671320 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 9750 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 9751 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 9752 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr15:74675326-74675826 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 9753 Neighboring gene P300/CBP strongly-dependent group 1 enhancer GRCh37_chr15:74676645-74677844 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr15:74678372-74678912 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr15:74678913-74679452 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr15:74679453-74679994 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr15:74679995-74680534 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr15:74680535-74681075 Neighboring gene long intergenic non-protein coding RNA 2255 Neighboring gene CRISPRi-validated cis-regulatory element chr15.2230 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 9757 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 9758 Neighboring gene P300/CBP strongly-dependent group 1 enhancer GRCh37_chr15:74688843-74690042 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 9762 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr15:74692014-74692514 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr15:74693783-74694283 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 9764 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr15:74695428-74696393 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 9768 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 9769 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 9770 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 9771 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr15:74701581-74702081 Neighboring gene microRNA 6881 Neighboring gene semaphorin 7A (JohnMiltonHagen blood group)

    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?

    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 cholesterol monooxygenase (side-chain-cleaving) activity IBA
    Inferred from Biological aspect of Ancestor
    more info
     
    enables cholesterol monooxygenase (side-chain-cleaving) activity IDA
    Inferred from Direct Assay
    more info
    PubMed 
    enables cholesterol monooxygenase (side-chain-cleaving) activity ISS
    Inferred from Sequence or Structural Similarity
    more info
     
    enables cholesterol monooxygenase (side-chain-cleaving) activity TAS
    Traceable Author Statement
    more info
     
    enables heme binding IDA
    Inferred from Direct Assay
    more info
    PubMed 
    enables iron ion binding IEA
    Inferred from Electronic Annotation
    more info
     
    enables protein binding IPI
    Inferred from Physical Interaction
    more info
    PubMed 
    Process Evidence Code Pubs
    involved_in C21-steroid hormone biosynthetic process IBA
    Inferred from Biological aspect of Ancestor
    more info
     
    involved_in C21-steroid hormone biosynthetic process IDA
    Inferred from Direct Assay
    more info
    PubMed 
    involved_in C21-steroid hormone biosynthetic process TAS
    Traceable Author Statement
    more info
     
    involved_in cellular response to peptide hormone stimulus IBA
    Inferred from Biological aspect of Ancestor
    more info
     
    involved_in cholesterol metabolic process IBA
    Inferred from Biological aspect of Ancestor
    more info
     
    involved_in cholesterol metabolic process IDA
    Inferred from Direct Assay
    more info
    PubMed 
    involved_in cholesterol metabolic process IEA
    Inferred from Electronic Annotation
    more info
     
    involved_in cholesterol metabolic process IMP
    Inferred from Mutant Phenotype
    more info
    PubMed 
    involved_in cholesterol metabolic process ISS
    Inferred from Sequence or Structural Similarity
    more info
     
    involved_in cortisol metabolic process IBA
    Inferred from Biological aspect of Ancestor
    more info
     
    involved_in glucocorticoid biosynthetic process IBA
    Inferred from Biological aspect of Ancestor
    more info
     
    involved_in sterol metabolic process TAS
    Traceable Author Statement
    more info
     
    involved_in vitamin D metabolic process ISS
    Inferred from Sequence or Structural Similarity
    more info
     
    Component Evidence Code Pubs
    is_active_in mitochondrial inner membrane IBA
    Inferred from Biological aspect of Ancestor
    more info
     
    located_in mitochondrial inner membrane ISS
    Inferred from Sequence or Structural Similarity
    more info
     
    located_in mitochondrial matrix TAS
    Traceable Author Statement
    more info
     
    located_in mitochondrion ISS
    Inferred from Sequence or Structural Similarity
    more info
     

    General protein information

    Preferred Names
    cholesterol side-chain cleavage enzyme, mitochondrial
    Names
    cholesterol 20-22 desmolase
    cholesterol monooxygenase (side-chain cleaving)
    cytochrome P450 11A1
    cytochrome P450 family 11 subfamily A polypeptide 1
    cytochrome P450(scc)
    cytochrome P450, subfamily XIA (cholesterol side chain cleavage)
    steroid 20-22-lyase
    NP_000772.2
    NP_001093243.1

    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_007973.2 RefSeqGene

      Range
      5000..34884
      Download
      GenBank, FASTA, Sequence Viewer (Graphics)

    mRNA and Protein(s)

    1. NM_000781.3NP_000772.2  cholesterol side-chain cleavage enzyme, mitochondrial isoform a precursor

      See identical proteins and their annotated locations for NP_000772.2

      Status: REVIEWED

      Description
      Transcript Variant: This variant (1) encodes the longer isoform (a).
      Source sequence(s)
      AI149078, BC032329, BX398579
      Consensus CDS
      CCDS32291.1
      UniProtKB/Swiss-Prot
      A8K8D5, B3KPU8, G3XAD7, P05108, Q15081, Q16805, Q8N1A7
      UniProtKB/TrEMBL
      A0A0S2Z3R3, B4DTE5
      Related
      ENSP00000268053.6, ENST00000268053.11
      Conserved Domains (1) summary
      pfam00067
      Location:52511
      p450; Cytochrome P450
    2. NM_001099773.2NP_001093243.1  cholesterol side-chain cleavage enzyme, mitochondrial isoform b

      See identical proteins and their annotated locations for NP_001093243.1

      Status: REVIEWED

      Description
      Transcript Variant: This variant (2) uses an alternate first exon compared to variant 1, resulting in the translation start site being located at a downstream AUG. The resulting isoform (b) is shorter at the N-terminus compared to isoform a.
      Source sequence(s)
      AC090826
      Consensus CDS
      CCDS45303.1
      UniProtKB/TrEMBL
      A8K8D6
      Related
      ENSP00000351455.4, ENST00000358632.8
      Conserved Domains (1) summary
      pfam00067
      Location:7353
      p450; Cytochrome P450

    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_000015.10 Reference GRCh38.p14 Primary Assembly

      Range
      74337762..74367646 complement
      Download
      GenBank, FASTA, Sequence Viewer (Graphics)

    Reference GRCh38.p14 PATCHES

    Genomic

    1. NW_021160016.1 Reference GRCh38.p14 PATCHES

      Range
      167031..196915 complement
      Download
      GenBank, FASTA, Sequence Viewer (Graphics)

    Alternate T2T-CHM13v2.0

    Genomic

    1. NC_060939.1 Alternate T2T-CHM13v2.0

      Range
      72205513..72235390 complement
      Download
      GenBank, FASTA, Sequence Viewer (Graphics)