Seroatlas · Human Serome Atlas

PMCHL2

Putative pro-MCH-like protein 2

Also known as: MCHL2_HUMAN

Cross-references: UniProt · GeneCards · NCBI Gene

Protein identityUniProt · HPA

UniProt accession
Q9BQD1
Gene
PMCHL2
Canonical length
86 aa

OverviewNCBI Gene

No narrative summary is available for PMCHL2 in this catalog release; identity and structured annotations are shown without generated factual claims.

Canonical amino-acid sequenceUniProt

86 residues, UniProt reviewed canonical sequence.

>Q9BQD1|PMCHL2
     1  MLSQKTKKKH NFLNHGLSLN LVIKPYLALE GSVAFPAENG VQDTESTLEK RETGDEENSA
    61  KFPIGRRDFD TLRCMLGRVY QRCWQV

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against PMCHL2 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
Unknown
Secreted
No
Transmembrane segments
0
Mean surface accessibility (rSASA)
0.69

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

Antibody and autoantibody relevanceSeroatlas analysis

Seroatlas reads PMCHL2 as an antibody target. Whether an autoantibody or antibody against PMCHL2 could matter depends on whether native PMCHL2 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

PMCHL2 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 PMCHL2 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/PMCHL2. 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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