Seroatlas · Human Serome Atlas

YBEY

Endoribonuclease YbeY

Also known as: C21orf57, YBEY_HUMAN

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

Protein identityUniProt · HPA

UniProt accession
P58557
Gene
YBEY
Ensembl
ENSG00000182362
Chromosome
21
Canonical length
167 aa
Protein class
Predicted intracellular proteins
Subcellular location
Nucleoplasm

OverviewNCBI Gene

This gene encodes a highly conserved metalloprotein. A similar protein in bacteria acts as an endoribonuclease, and is thought to function in ribosomal RNA maturation and ribosome assembly. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2015]

Canonical amino-acid sequenceUniProt

167 residues, UniProt reviewed canonical sequence.

>P58557|YBEY
     1  MSLVIRNLQR VIPIRRAPLR SKIEIVRRIL GVQKFDLGII CVDNKNIQHI NRIYRDRNVP
    61  TDVLSFPFHE HLKAGEFPQP DFPDDYNLGD IFLGVEYIFH QCKENEDYND VLTVTATHGL
   121  CHLLGFTHGT EAEWQQMFQK EKAVLDELGR RTGTRLQPLT RGLFGGS

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against YBEY 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
Intracellular
Secreted
No
Transmembrane segments
0
Mean surface accessibility (rSASA)
0.28
Highest tissue expression
75 nTPM

Expression across tissuesHPA

Tissue

  • testis: 75 nTPM
  • spinal cord: 25 nTPM
  • midbrain: 19 nTPM
  • liver: 18 nTPM
  • pancreas: 16 nTPM
  • heart muscle: 16 nTPM

Single-cell type

  • late primary spermatocytes: 725 nCPM
  • late spermatids: 355 nCPM
  • early spermatids: 315 nCPM
  • enterocytes: 100 nCPM
  • early primary spermatocytes: 88 nCPM
  • epididymal principal cells: 81 nCPM

Immune cell

  • memory B-cell: 33 nTPM
  • basophil: 28 nTPM
  • T-reg: 27 nTPM
  • naive B-cell: 25 nTPM
  • plasmacytoid DC: 24 nTPM
  • NK-cell: 21 nTPM

Brain region

  • white matter: 14 nTPM
  • cerebellum: 11 nTPM
  • pons: 11 nTPM
  • medulla oblongata: 11 nTPM
  • basal ganglia: 10 nTPM
  • spinal cord: 9.9 nTPM

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)
1.92
gnomAD pLI
0
gnomAD missense Z
0.01
DepMap mean gene effect
-0.06
DepMap dependency class
selective

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 4% 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

  • Endoribonuclease YbeY
  • Endoribonuclease YbeY, conserved site
  • Metalloprotease catalytic domain superfamily, predicted
  • Endoribonuclease YbeY

KeywordsUniProt

Antibody and autoantibody relevanceSeroatlas analysis

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

YBEY 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 YBEY as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/YBEY. 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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