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DHCR7 7-dehydrocholesterol reductase [ Homo sapiens (human) ]

Gene ID: 1717, updated on 4-Mar-2024

Summary

Official Symbol
DHCR7provided by HGNC
Official Full Name
7-dehydrocholesterol reductaseprovided by HGNC
Primary source
HGNC:HGNC:2860
See related
Ensembl:ENSG00000172893 MIM:602858; AllianceGenome:HGNC:2860
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
SLOS
Summary
This gene encodes an enzyme that removes the C(7-8) double bond in the B ring of sterols and catalyzes the conversion of 7-dehydrocholesterol to cholesterol. This gene is ubiquitously expressed and its transmembrane protein localizes to the endoplasmic reticulum membrane and nuclear outer membrane. Mutations in this gene cause Smith-Lemli-Opitz syndrome (SLOS); a syndrome that is metabolically characterized by reduced serum cholesterol levels and elevated serum 7-dehydrocholesterol levels and phenotypically characterized by cognitive disability, facial dysmorphism, syndactyly of second and third toes, and holoprosencephaly in severe cases to minimal physical abnormalities and near-normal intelligence in mild cases. Alternative splicing results in multiple transcript variants that encode the same protein.[provided by RefSeq, Aug 2009]
Expression
Broad expression in liver (RPKM 39.9), adrenal (RPKM 35.8) and 24 other tissues See more
Orthologs
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Genomic context

See DHCR7 in Genome Data Viewer
Location:
11q13.4
Exon count:
9
Annotation release Status Assembly Chr Location
RS_2023_10 current GRCh38.p14 (GCF_000001405.40) 11 NC_000011.10 (71434411..71448393, complement)
RS_2023_10 current T2T-CHM13v2.0 (GCF_009914755.1) 11 NC_060935.1 (71361366..71375349, complement)
105.20220307 previous assembly GRCh37.p13 (GCF_000001405.25) 11 NC_000011.9 (71145457..71159439, complement)

Chromosome 11 - NC_000011.10Genomic Context describing neighboring genes Neighboring gene uncharacterized LOC124902706 Neighboring gene P300/CBP strongly-dependent group 1 enhancer GRCh37_chr11:71009949-71011148 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr11:71012233-71012890 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 5165 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr11:71054609-71055108 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 3706 Neighboring gene actin, aortic smooth muscle-like Neighboring gene H3K4me1 hESC enhancer GRCh37_chr11:71100061-71100562 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr11:71100563-71101062 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr11:71107588-71108289 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr11:71110671-71111514 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr11:71113580-71114080 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 3707 Neighboring gene actin epsilon 1, pseudogene Neighboring gene H3K27ac hESC enhancer GRCh37_chr11:71159471-71159972 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 5166 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 5167 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 3709 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr11:71164405-71164906 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr11:71164907-71165406 Neighboring gene ReSE screen-validated silencer GRCh37_chr11:71169226-71169406 Neighboring gene DHCR7 divergent transcript Neighboring gene NAD synthetase 1 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr11:71183373-71184280 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr11:71184281-71185187 Neighboring gene microRNA 6754

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
Smith-Lemli-Opitz syndrome
MedGen: C0175694 OMIM: 270400 GeneReviews: Smith-Lemli-Opitz Syndrome
Compare labs

EBI GWAS Catalog

Description
Common genetic determinants of vitamin D insufficiency: a genome-wide association study.
EBI GWAS Catalog
Genome-wide association study of circulating vitamin D levels.
EBI GWAS Catalog

HIV-1 interactions

Protein interactions

Protein Gene Interaction Pubs
Envelope surface glycoprotein gp120 env Tandem affinity purification and mass spectrometry analysis identify 7-dehydrocholesterol reductase (DHCR7), HIV-1 Gag, Gag/Pol, gp120, and Nef incorporated into staufen1 RNP complexes isolated from HIV-1-expressing cells PubMed
Gag-Pol gag-pol Tandem affinity purification and mass spectrometry analysis identify 7-dehydrocholesterol reductase (DHCR7), HIV-1 Gag, Gag/Pol, gp120, and Nef incorporated into staufen1 RNP complexes isolated from HIV-1-expressing cells PubMed
Nef nef Tandem affinity purification and mass spectrometry analysis identify 7-dehydrocholesterol reductase (DHCR7), HIV-1 Gag, Gag/Pol, gp120, and Nef incorporated into staufen1 RNP complexes isolated from HIV-1-expressing cells PubMed
Pr55(Gag) gag Tandem affinity purification and mass spectrometry analysis identify 7-dehydrocholesterol reductase (DHCR7), HIV-1 Gag, Gag/Pol, gp120, and Nef incorporated into staufen1 RNP complexes isolated from HIV-1-expressing cells PubMed
Vif vif HIV-1 Vif upregulates the expression of 7-dehydrocholesterol reductase (DHCR7) in Vif-expression T cells 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 7-dehydrocholesterol reductase activity EXP
Inferred from Experiment
more info
PubMed 
enables 7-dehydrocholesterol reductase activity IBA
Inferred from Biological aspect of Ancestor
more info
 
enables 7-dehydrocholesterol reductase activity IDA
Inferred from Direct Assay
more info
PubMed 
enables NADP binding ISS
Inferred from Sequence or Structural Similarity
more info
 
enables protein binding IPI
Inferred from Physical Interaction
more info
PubMed 
Process Evidence Code Pubs
involved_in brassinosteroid biosynthetic process IBA
Inferred from Biological aspect of Ancestor
more info
 
involved_in cholesterol biosynthetic process IBA
Inferred from Biological aspect of Ancestor
more info
 
involved_in cholesterol biosynthetic process IMP
Inferred from Mutant Phenotype
more info
PubMed 
involved_in cholesterol biosynthetic process via desmosterol TAS
Traceable Author Statement
more info
 
involved_in cholesterol biosynthetic process via lathosterol TAS
Traceable Author Statement
more info
 

General protein information

Preferred Names
7-dehydrocholesterol reductase
Names
7-DHC reductase
delta-7-dehydrocholesterol reductase
delta7-sterol reductase
putative sterol reductase SR-2
sterol delta-7-reductase
sterol reductase SR-2
NP_001157289.1
NP_001351.2
XP_011543079.1
XP_054223865.1

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_012655.2 RefSeqGene

    Range
    5001..19021
    Download
    GenBank, FASTA, Sequence Viewer (Graphics), LRG_340

mRNA and Protein(s)

  1. NM_001163817.2NP_001157289.1  7-dehydrocholesterol reductase isoform 1

    See identical proteins and their annotated locations for NP_001157289.1

    Status: REVIEWED

    Description
    Transcript Variant: This variant (2) differs in the 5' UTR, compared to variant 1. Variants 1 and 2 encode the same protein.
    Source sequence(s)
    AI888720, AP002387, DA502590
    Consensus CDS
    CCDS8200.1
    UniProtKB/Swiss-Prot
    B2R6Z2, O60492, O60717, Q9UBM7
    UniProtKB/TrEMBL
    A0A024R5F7, X5DNI9
    Related
    ENSP00000384739.2, ENST00000407721.6
    Conserved Domains (1) summary
    cl21511
    Location:93475
    PEMT; Phospholipid methyltransferase
  2. NM_001360.3NP_001351.2  7-dehydrocholesterol reductase isoform 1

    See identical proteins and their annotated locations for NP_001351.2

    Status: REVIEWED

    Description
    Transcript Variant: This variant (1) represents the longer transcript. Variants 1 and 2 encode the same protein.
    Source sequence(s)
    AF062481, AP002387, BU848891, DA502590
    Consensus CDS
    CCDS8200.1
    UniProtKB/Swiss-Prot
    B2R6Z2, O60492, O60717, Q9UBM7
    UniProtKB/TrEMBL
    A0A024R5F7, X5DNI9
    Related
    ENSP00000347717.4, ENST00000355527.8
    Conserved Domains (1) summary
    cl21511
    Location:93475
    PEMT; Phospholipid methyltransferase
  3. NM_001425107.1NP_001412036.1  7-dehydrocholesterol reductase isoform 2

    Status: REVIEWED

    Source sequence(s)
    AP002387
    UniProtKB/TrEMBL
    A0A804HI25, X5DNI9
  4. NM_001425108.1NP_001412037.1  7-dehydrocholesterol reductase isoform 3

    Status: REVIEWED

    Source sequence(s)
    AP002387
    UniProtKB/TrEMBL
    A0A804HJQ7, X5DNI9
  5. NM_001425109.1NP_001412038.1  7-dehydrocholesterol reductase isoform 1

    Status: REVIEWED

    Source sequence(s)
    AP002387
    UniProtKB/Swiss-Prot
    B2R6Z2, O60492, O60717, Q9UBM7
    UniProtKB/TrEMBL
    A0A024R5F7, X5DNI9
  6. NM_001425110.1NP_001412039.1  7-dehydrocholesterol reductase isoform 1

    Status: REVIEWED

    Source sequence(s)
    AP002387
    UniProtKB/Swiss-Prot
    B2R6Z2, O60492, O60717, Q9UBM7
    UniProtKB/TrEMBL
    A0A024R5F7, X5DNI9
  7. NM_001425111.1NP_001412040.1  7-dehydrocholesterol reductase isoform 4

    Status: REVIEWED

    Source sequence(s)
    AP002387
    UniProtKB/TrEMBL
    X5DNI9
  8. NM_001425112.1NP_001412041.1  7-dehydrocholesterol reductase isoform 5

    Status: REVIEWED

    Source sequence(s)
    AP002387
    UniProtKB/TrEMBL
    A0A804HL56
  9. NM_001425113.1NP_001412042.1  7-dehydrocholesterol reductase isoform 6

    Status: REVIEWED

    Source sequence(s)
    AP002387
    UniProtKB/TrEMBL
    A8K0D2, X5DNI9
  10. NM_001425114.1NP_001412043.1  7-dehydrocholesterol reductase isoform 7

    Status: REVIEWED

    Source sequence(s)
    AP002387
    UniProtKB/TrEMBL
    A0A8I5KRR9, A8K0D2, X5DNI9
  11. NM_001425116.1NP_001412045.1  7-dehydrocholesterol reductase isoform 8

    Status: REVIEWED

    Source sequence(s)
    AP002387
    UniProtKB/TrEMBL
    A0A804HL56
  12. NM_001425117.1NP_001412046.1  7-dehydrocholesterol reductase isoform 9

    Status: REVIEWED

    Source sequence(s)
    AP002387
    UniProtKB/TrEMBL
    A8K0D2, E9PM00, X5DNI9
  13. NM_001425118.1NP_001412047.1  7-dehydrocholesterol reductase isoform 10

    Status: REVIEWED

    Source sequence(s)
    AP002387
    UniProtKB/TrEMBL
    X5DRD7
  14. NM_001425119.1NP_001412048.1  7-dehydrocholesterol reductase isoform 11

    Status: REVIEWED

    Source sequence(s)
    AP002387
    UniProtKB/TrEMBL
    X5DRD7
  15. NM_001425120.1NP_001412049.1  7-dehydrocholesterol reductase isoform 12

    Status: REVIEWED

    Source sequence(s)
    AP002387
    UniProtKB/TrEMBL
    X5DRD7
  16. NM_001425121.1NP_001412050.1  7-dehydrocholesterol reductase isoform 13

    Status: REVIEWED

    Source sequence(s)
    AP002387
    UniProtKB/TrEMBL
    X5DRD7

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_000011.10 Reference GRCh38.p14 Primary Assembly

    Range
    71434411..71448393 complement
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. XM_011544777.3XP_011543079.1  7-dehydrocholesterol reductase isoform X1

    Conserved Domains (1) summary
    cl21511
    Location:93323
    PEMT; Phospholipid methyltransferase

Alternate T2T-CHM13v2.0

Genomic

  1. NC_060935.1 Alternate T2T-CHM13v2.0

    Range
    71361366..71375349 complement
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. XM_054367890.1XP_054223865.1  7-dehydrocholesterol reductase isoform X1