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CYP7B1 cytochrome P450 family 7 subfamily B member 1 [ Homo sapiens (human) ]

Gene ID: 9420, updated on 2-Nov-2024

Summary

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Official Symbol
CYP7B1provided by HGNC
Official Full Name
cytochrome P450 family 7 subfamily B member 1provided by HGNC
Primary source
HGNC:HGNC:2652
See related
Ensembl:ENSG00000172817 MIM:603711; AllianceGenome:HGNC:2652
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
CP7B; CBAS3; SPG5A
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 endoplasmic reticulum membrane protein catalyzes the first reaction in the cholesterol catabolic pathway of extrahepatic tissues, which converts cholesterol to bile acids. This enzyme likely plays a minor role in total bile acid synthesis, but may also be involved in the development of atherosclerosis, neurosteroid metabolism and sex hormone synthesis. Mutations in this gene have been associated with hereditary spastic paraplegia (SPG5 or HSP), an autosomal recessive disorder. [provided by RefSeq, Apr 2016]
Expression
Ubiquitous expression in thyroid (RPKM 2.3), liver (RPKM 1.9) and 23 other tissues See more
Orthologs
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Genomic context

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See CYP7B1 in Genome Data Viewer
Location:
8q12.3
Exon count:
10
Annotation release Status Assembly Chr Location
RS_2024_08 current GRCh38.p14 (GCF_000001405.40) 8 NC_000008.11 (64586575..64798737, complement)
RS_2024_08 current T2T-CHM13v2.0 (GCF_009914755.1) 8 NC_060932.1 (65011997..65224254, complement)
RS_2024_09 previous assembly GRCh37.p13 (GCF_000001405.25) 8 NC_000008.10 (65499132..65711294, complement)

Chromosome 8 - NC_000008.11Genomic Context describing neighboring genes Neighboring gene uncharacterized LOC124900252 Neighboring gene BHLHE22 antisense RNA 1 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 27455 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr8:65499285-65499928 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr8:65499929-65500572 Neighboring gene NANOG hESC enhancer GRCh37_chr8:65522320-65522853 Neighboring gene basic helix-loop-helix family member e22 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 27456 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 27457 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 19243 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 19244 Neighboring gene uncharacterized LOC105375879 Neighboring gene uncharacterized LOC105375878 Neighboring gene NANOG hESC enhancer GRCh37_chr8:65843197-65843698 Neighboring gene uncharacterized LOC105375880

Genomic regions, transcripts, and products

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Go to nucleotide: Graphics FASTA GenBank

Expression

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  • Project title: HPA RNA-seq normal tissues 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

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Related articles in PubMed

  1. The human cytochrome P4507B1: catalytic activity studies. Kim SB, et al. J Steroid Biochem Mol Biol, 2004 Dec. PMID 15698543
  2. CYP7B1: novel mutations and magnetic resonance spectroscopy abnormalities in hereditary spastic paraplegia type 5A. Roos P, et al. Acta Neurol Scand, 2014 May. PMID 24117163
  3. Structure and functions of human oxysterol 7alpha-hydroxylase cDNAs and gene CYP7B1. Wu Z, et al. J Lipid Res, 1999 Dec. PMID 10588945
  4. Dehydroepiandrosterone 7-hydroxylase CYP7B: predominant expression in primate hippocampus and reduced expression in Alzheimer's disease. Yau JL, et al. Neuroscience, 2003. PMID 14521990
  5. Transcriptional regulation of human oxysterol 7alpha-hydroxylase by sterol response element binding protein. Norlin M, et al. Biochem Biophys Res Commun, 2004 Mar 26. PMID 15003524

See all (67) citations in PubMed

GeneRIFs: Gene References Into Functions

What's a GeneRIF?
  1. The effect of CYP7B1 polymorphisms on the risk of coronary heart disease in Hainan Han population.
    Title: The effect of CYP7B1 polymorphisms on the risk of coronary heart disease in Hainan Han population.
  2. CYP7B1-mediated 25-hydroxycholesterol degradation maintains quiescence-activation balance and improves therapeutic potential of mesenchymal stem cells.
    Title: CYP7B1-mediated 25-hydroxycholesterol degradation maintains quiescence-activation balance and improves therapeutic potential of mesenchymal stem cells.
  3. Phenoconversion from Spastic Paraplegia to ALS/FTD Associated with CYP7B1 Compound Heterozygous Mutations.
    Title: Phenoconversion from Spastic Paraplegia to ALS/FTD Associated with CYP7B1 Compound Heterozygous Mutations.
  4. Description of clinical features and genetic analysis of one ultra-rare (SPG64) and two common forms (SPG5A and SPG15) of hereditary spastic paraplegia families.
    Title: Description of clinical features and genetic analysis of one ultra-rare (SPG64) and two common forms (SPG5A and SPG15) of hereditary spastic paraplegia families.
  5. Clinical characteristics of Taiwanese patients with Hereditary spastic paraplegia type 5.
    Title: Clinical characteristics of Taiwanese patients with Hereditary spastic paraplegia type 5.
  6. AKR1D1 and CYP7B1 mutations in patients with inborn errors of bile acid metabolism: Possibly underdiagnosed diseases.
    Title: AKR1D1 and CYP7B1 mutations in patients with inborn errors of bile acid metabolism: Possibly underdiagnosed diseases.
  7. This study provides evidence for CYP7B1 as a key regulator of three vital intracellular regulatory oxysterol levels.
    Title: Mitochondrial oxysterol biosynthetic pathway gives evidence for CYP7B1 as controller of regulatory oxysterols.
  8. SPG11 and CYP7B1 were the most common cause of autosomal recessive hereditary spastic paraplegia in Greece.
    Title: Hereditary spastic paraplegia in Greece: characterisation of a previously unexplored population using next-generation sequencing.
  9. miR17 induces epithelial-mesenchymal transition consistent with the cancer stem cell phenotype by regulating CYP7B1 expression in colon cancer.
    Title: MicroRNA-17 induces epithelial-mesenchymal transition consistent with the cancer stem cell phenotype by regulating CYP7B1 expression in colon cancer.
  10. The two novel variants cosegregated with pyramidal signs and autoimmune diseases suggesting that they might be susceptibility factors.
    Title: SPG5 and multiple sclerosis: clinical and genetic overlap?
Submit: New GeneRIF Correction See all GeneRIFs (46)

Phenotypes

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Find tests for this gene in the NIH Genetic Testing Registry (GTR)

Review eQTL and phenotype association data in this region using PheGenI

EBI GWAS Catalog

Description
Genome-wide association analyses suggest NELL1 influences adverse metabolic response to HCTZ in African Americans.
EBI GWAS Catalog
Genome-wide association study of retinopathy in individuals without diabetes.
EBI GWAS Catalog
Genomewide association study for determinants of HIV-1 acquisition and viral set point in HIV-1 serodiscordant couples with quantified virus exposure.
EBI GWAS Catalog

Variation

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See variants in ClinVar

See studies and variants in dbVar

See Variation Viewer (GRCh37.p13)

See Variation Viewer (GRCh38)

Genotypes

Pathways from PubChem

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Interactions

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Products Interactant Other Gene Complex Source Pubs Description

General gene information

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Markers

Homology

Gene Ontology Provided by GOA

Function Evidence Code Pubs
enables 24-hydroxycholesterol 7alpha-hydroxylase activity IEA
Inferred from Electronic Annotation
more info
  
enables 25-hydroxycholesterol 7alpha-hydroxylase activity IEA
Inferred from Electronic Annotation
more info
  
enables heme binding IEA
Inferred from Electronic Annotation
more info
  
enables iron ion binding IEA
Inferred from Electronic Annotation
more info
  
enables oxysterol 7-alpha-hydroxylase activity IBA
Inferred from Biological aspect of Ancestor
more info
  
enables oxysterol 7-alpha-hydroxylase activity ISS
Inferred from Sequence or Structural Similarity
more info
  
enables oxysterol 7-alpha-hydroxylase activity TAS
Traceable Author Statement
more info
  
enables protein binding IPI
Inferred from Physical Interaction
more info
 PubMed 
Process Evidence Code Pubs
involved_in B cell chemotaxis ISS
Inferred from Sequence or Structural Similarity
more info
  
involved_in bile acid biosynthetic process IBA
Inferred from Biological aspect of Ancestor
more info
  
involved_in bile acid biosynthetic process IEA
Inferred from Electronic Annotation
more info
  
involved_in bile acid biosynthetic process TAS
Traceable Author Statement
more info
  
involved_in cholesterol homeostasis IBA
Inferred from Biological aspect of Ancestor
more info
  
involved_in cholesterol metabolic process IEA
Inferred from Electronic Annotation
more info
  
involved_in epithelial cell proliferation IEA
Inferred from Electronic Annotation
more info
  
involved_in estrogen receptor signaling pathway IEA
Inferred from Electronic Annotation
more info
  
involved_in negative regulation of intracellular estrogen receptor signaling pathway IEA
Inferred from Electronic Annotation
more info
  
involved_in positive regulation of epithelial cell proliferation IEA
Inferred from Electronic Annotation
more info
  
involved_in prostate gland epithelium morphogenesis IEA
Inferred from Electronic Annotation
more info
  
involved_in sterol metabolic process TAS
Traceable Author Statement
more info
  
Component Evidence Code Pubs
located_in endoplasmic reticulum membrane TAS
Traceable Author Statement
more info
  

General protein information

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Preferred Names
cytochrome P450 7B1
Names
24-hydroxycholesterol 7-alpha-hydroxylase
25-hydroxycholesterol 7-alpha-hydroxylase
25/26-hydroxycholesterol 7-alpha-hydroxylase
3-hydroxysteroid 7-alpha hydroxylase
cytochrome P450, subfamily VIIB (oxysterol 7 alpha-hydroxylase), polypeptide 1
oxysterol 7-alpha-hydroxylase
NP_001311041.1
NP_004811.1
XP_016869491.1
XP_054217511.1

NCBI Reference Sequences (RefSeq)

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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_008338.2 RefSeqGene

    Range
    5055..212941
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. NM_001324112.2 → NP_001311041.1  cytochrome P450 7B1 isoform 2

    Status: REVIEWED

    Description
    Transcript Variant: This variant (2) contains an alternate exon in the 3' coding region and contains an alternate 3' terminal exon compared to variant 1. The encoded isoform (2) is shorter and has a distinct C-terminus compared to isoform 1.
    Source sequence(s)
    AC090136, AC104232, BC029155, BM729103
    UniProtKB/TrEMBL
    Q05C57
    Conserved Domains (1) summary
    cl12078
    Location:43 → 412
    p450; Cytochrome P450

  2. NM_004820.5 → NP_004811.1  cytochrome P450 7B1 isoform 1

    See identical proteins and their annotated locations for NP_004811.1

    Status: REVIEWED

    Description
    Transcript Variant: This variant (1) represents the longer transcript and encodes the longer isoform (1).
    Source sequence(s)
    AC090136, AC104232, BC029155, BP349825, BQ575990
    Consensus CDS
    CCDS6180.1
    UniProtKB/Swiss-Prot
    B2RN07, O75881, Q9UNF5
    UniProtKB/TrEMBL
    Q05C57
    Related
    ENSP00000310721.3, ENST00000310193.4
    Conserved Domains (1) summary
    cl12078
    Location:43 → 488
    p450; Cytochrome P450

RefSeqs of Annotated Genomes: GCF_000001405.40-RS_2024_08

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

Reference GRCh38.p14 Primary Assembly

Genomic

  1. NC_000008.11 Reference GRCh38.p14 Primary Assembly

    Range
    64586575..64798737 complement
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. XM_017014002.2 → XP_016869491.1  cytochrome P450 7B1 isoform X1

    UniProtKB/TrEMBL
    Q05C57
    Conserved Domains (1) summary
    cl12078
    Location:65 → 510
    p450; Cytochrome P450

Alternate T2T-CHM13v2.0

Genomic

  1. NC_060932.1 Alternate T2T-CHM13v2.0

    Range
    65011997..65224254 complement
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. XM_054361536.1 → XP_054217511.1  cytochrome P450 7B1 isoform X1

Nucleotide Protein
Heading Accession and Version
Protein Accession Links
GenPept Link UniProtKB Link
O75881.2 GenPept UniProtKB/Swiss-Prot:O75881

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