Seroatlas · Human Serome Atlas

CYP4Z1

Cytochrome P450 4Z1

Also known as: CP4Z1_HUMAN, CYP4A20

Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene

Protein identityUniProt · HPA

UniProt accession
Q86W10
Gene
CYP4Z1
Ensembl
ENSG00000186160
Chromosome
1
Canonical length
505 aa
Protein class
Enzymes, Metabolic proteins, Predicted membrane proteins

OverviewNCBI Gene

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 gene is part of a cluster of cytochrome P450 genes on chromosome 1p33. [provided by RefSeq, Jul 2008]

Canonical amino-acid sequenceUniProt

505 residues, UniProt reviewed canonical sequence.

>Q86W10|CYP4Z1
     1  MEPSWLQELM AHPFLLLILL CMSLLLFQVI RLYQRRRWMI RALHLFPAPP AHWFYGHKEF
    61  YPVKEFEVYH KLMEKYPCAV PLWVGPFTMF FSVHDPDYAK ILLKRQDPKS AVSHKILESW
   121  VGRGLVTLDG SKWKKHRQIV KPGFNISILK IFITMMSESV RMMLNKWEEH IAQNSRLELF
   181  QHVSLMTLDS IMKCAFSHQG SIQLDSTLDS YLKAVFNLSK ISNQRMNNFL HHNDLVFKFS
   241  SQGQIFSKFN QELHQFTEKV IQDRKESLKD KLKQDTTQKR RWDFLDILLS AKSENTKDFS
   301  EADLQAEVKT FMFAGHDTTS SAISWILYCL AKYPEHQQRC RDEIRELLGD GSSITWEHLS
   361  QMPYTTMCIK ECLRLYAPVV NISRLLDKPI TFPDGRSLPA GITVFINIWA LHHNPYFWED
   421  PQVFNPLRFS RENSEKIHPY AFIPFSAGLR NCIGQHFAII ECKVAVALTL LRFKLAPDHS
   481  RPPQPVRQVV LKSKNGIHVF AKKVC

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against CYP4Z1 can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.

Antibody reachability
Other membrane
Secreted
No
Transmembrane segments
1
Mean surface accessibility (rSASA)
0.24
Highest tissue expression
5.2 nTPM

Expression across tissuesHPA

Tissue

  • breast: 5.2 nTPM
  • adipose tissue: 1.8 nTPM
  • lung: 1.3 nTPM
  • hypothalamus: 1.2 nTPM
  • prostate: 1 nTPM
  • cerebral cortex: 0.8 nTPM

Single-cell type

  • fibro-adipogenic progenitors: 54 nCPM
  • breast myoepithelial cells: 37 nCPM
  • epicardial cells: 34 nCPM
  • breast hormone-responsive cells: 22 nCPM
  • retinal ganglion cells: 16 nCPM
  • prostatic hillock cells: 13 nCPM

Immune cell

  • basophil: 0 nTPM
  • classical monocyte: 0 nTPM
  • eosinophil: 0 nTPM
  • gdT-cell: 0 nTPM
  • intermediate monocyte: 0 nTPM
  • MAIT T-cell: 0 nTPM

Brain region

  • hypothalamus: 4.2 nTPM
  • cerebral cortex: 3.9 nTPM
  • basal ganglia: 3.4 nTPM
  • white matter: 3.4 nTPM
  • amygdala: 3.1 nTPM
  • medulla oblongata: 2.3 nTPM

ReferencesPubMed · IEDB

Publications for CYP4Z1 from three distinct lines of evidence, kept separate because they answer different questions: whether antibodies are directed at the protein, whether a B-cell epitope has been mapped on it, and whether a T-cell epitope has. Each is labelled with its source.

Reference: AutoantibodyPubMed

2 publications

Sources: PubMed — antigen-level antibody evidence from a custom retrieval. Records matching a controlled set of autoantibody terms (the MeSH descriptors Autoantibodies and Autoantigens, with title and abstract term variants) were obtained through NCBI E-utilities, and their titles and abstracts parsed for constructions that direct an antibody at a named protein rather than for co-occurrence. Captured names were resolved against UniProt nomenclature and each antigen adjudicated individually against the source text. Bibliographic records from PubMed and MeSH, U.S. National Library of Medicine; citation metrics from NIH iCite (Hutchins et al., PLoS Biology 2016). Titles link to PubMed; abstracts are not reproduced here. The NLM does not endorse this analysis.

Genetic constraint and essentialitygnomAD · DepMap

Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.

gnomAD LOEUF (loss-of-function intolerance)
1.46
gnomAD pLI
0
gnomAD missense Z
0.11
DepMap mean gene effect
-0.02
DepMap dependency class
none

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 3% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).

OntologyGO

Biological processes

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

KeywordsUniProt

Antibody and autoantibody relevanceSeroatlas analysis

Seroatlas reads CYP4Z1 as an antibody target. Whether an autoantibody or antibody against CYP4Z1 could matter depends on whether native CYP4Z1 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

CYP4Z1 is annotated as predominantly intracellular. Intracellular proteins are common autoantibody markers, becoming visible to the immune system after cell injury or altered processing, but are usually markers of disease rather than direct drivers.

Annotation status

The present source text does not explicitly label CYP4Z1 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/CYP4Z1. Study-independent annotations aggregated from UniProt, Human Protein Atlas, PubMed, IEDB, Pfam, InterPro, Gene Ontology, AlphaFold, gnomAD, DepMap, ClinVar, TCGA. Catalog release seroatlas-reviewed-human-uniprot-20260313.

Seroatlas is the reference for exploring autoantibody and antibody serology at the human-protein level: the autoreactome and human serome, multiplex serology (HuProt, HuScan, VirScan, PhIP-Seq).

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