Seroatlas · Human Serome Atlas

GCM1

Chorion-specific transcription factor GCMa

Also known as: GCM1_HUMAN, GCMA, hGCMa

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

Protein identityUniProt · HPA

UniProt accession
Q9NP62
Gene
GCM1
Ensembl
ENSG00000137270
Chromosome
6
Canonical length
436 aa
Protein class
Predicted intracellular proteins, Transcription factors

OverviewNCBI Gene

This gene encodes a DNA-binding protein with a gcm-motif (glial cell missing motif). The encoded protein is a homolog of the Drosophila glial cells missing gene (gcm). This protein binds to the GCM-motif (A/G)CCCGCAT, a novel sequence among known targets of DNA-binding proteins. The N-terminal DNA-binding domain confers the unique DNA-binding activity of this protein. [provided by RefSeq, Jul 2008]

Canonical amino-acid sequenceUniProt

436 residues, UniProt reviewed canonical sequence.

>Q9NP62|GCM1
     1  MEPDDFDSED KEILSWDIND VKLPQNVKKT DWFQEWPDSY AKHIYSSEDK NAQRHLSSWA
    61  MRNTNNHNSR ILKKSCLGVV VCGRDCLAEE GRKIYLRPAI CDKARQKQQR KRCPNCDGPL
   121  KLIPCRGHGG FPVTNFWRHD GRFIFFQSKG EHDHPKPETK LEAEARRAMK KVNTAPSSVS
   181  LSLKGSTETR SLPGETQSQG SLPLTWSFQE GVQLPGSYSG HLIANTPQQN SLNDCFSFSK
   241  SYGLGGITDL TDQTSTVDPM KLYEKRKLSS SRTYSSGDLL PPSASGVYSD HGDLQAWSKN
   301  AALGRNHLAD NCYSNYPFPL TSWPCSFSPS QNSSEPFYQQ LPLEPPAAKT GCPPLWPNPA
   361  GNLYEEKVHV DFNSYVQSPA YHSPQEDPFL FTYASHPHQQ YSLPSKSSKW DFEEEMTYLG
   421  LDHCNNDMLL NLCPLR

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against GCM1 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)
0.57
Highest tissue expression
19 nTPM

Expression across tissuesHPA

Tissue

  • placenta: 19 nTPM
  • skeletal muscle: 3.3 nTPM
  • kidney: 1.2 nTPM
  • testis: 0.5 nTPM
  • spleen: 0.4 nTPM
  • bone marrow: 0.3 nTPM

Single-cell type

  • extravillous trophoblasts: 714 nCPM
  • syncytiotrophoblasts: 447 nCPM
  • migrating cytotrophoblasts: 125 nCPM
  • cytotrophoblasts: 75 nCPM
  • neutrophils: 10 nCPM
  • early spermatids: 4 nCPM

Immune cell

  • neutrophil: 1.2 nTPM
  • eosinophil: 0.7 nTPM
  • naive B-cell: 0.5 nTPM
  • basophil: 0.2 nTPM
  • memory B-cell: 0.2 nTPM
  • NK-cell: 0.1 nTPM

Brain region

  • cerebral cortex: 2.6 nTPM
  • amygdala: 1.8 nTPM
  • cerebellum: 1.8 nTPM
  • hippocampal formation: 1.7 nTPM
  • white matter: 1.7 nTPM
  • choroid plexus: 1.6 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)
0.15
gnomAD pLI
1
gnomAD missense Z
1.44
DepMap mean gene effect
-0.02
DepMap dependency class
selective

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

InteractionsUniProt · HPA

Protein binding partners of GCM1 in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.

Antibody and autoantibody relevanceSeroatlas analysis

Seroatlas reads GCM1 as an antibody target. Whether an autoantibody or antibody against GCM1 could matter depends on whether native GCM1 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

GCM1 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 GCM1 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/GCM1. 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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