Seroatlas · Human Serome Atlas

SCMH1

Polycomb protein SCMH1

Also known as: SCMH1_HUMAN, Scml3

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

Protein identityUniProt · HPA

UniProt accession
Q96GD3
Gene
SCMH1
Ensembl
ENSG00000010803
Chromosome
1
Canonical length
660 aa
Protein class
Predicted intracellular proteins
Subcellular location
Nucleoplasm,Nuclear bodies,Cytosol

OverviewNCBI Gene

Predicted to enable chromatin binding activity and histone binding activity. Predicted to be involved in heterochromatin formation and negative regulation of DNA-templated transcription. Predicted to act upstream of or within anterior/posterior pattern specification; chromatin remodeling; and spermatogenesis. Predicted to be located in nucleoplasm. Predicted to be active in nucleus. [provided by Alliance of Genome Resources, Jul 2025]

Canonical amino-acid sequenceUniProt

660 residues, UniProt reviewed canonical sequence.

>Q96GD3|SCMH1
     1  MLVCYSVLAC EILWDLPCSI MGSPLGHFTW DKYLKETCSV PAPVHCFKQS YTPPSNEFKI
    61  SMKLEAQDPR NTTSTCIATV VGLTGARLRL RLDGSDNKND FWRLVDSAEI QPIGNCEKNG
   121  GMLQPPLGFR LNASSWPMFL LKTLNGAEMA PIRIFHKEPP SPSHNFFKMG MKLEAVDRKN
   181  PHFICPATIG EVRGSEVLVT FDGWRGAFDY WCRFDSRDIF PVGWCSLTGD NLQPPGTKVV
   241  IPKNPYPASD VNTEKPSIHS STKTVLEHQP GQRGRKPGKK RGRTPKTLIS HPISAPSKTA
   301  EPLKFPKKRG PKPGSKRKPR TLLNPPPASP TTSTPEPDTS TVPQDAATIP SSAMQAPTVC
   361  IYLNKNGSTG PHLDKKKVQQ LPDHFGPARA SVVLQQAVQA CIDCAYHQKT VFSFLKQGHG
   421  GEVISAVFDR EQHTLNLPAV NSITYVLRFL EKLCHNLRSD NLFGNQPFTQ THLSLTAIEY
   481  SHSHDRYLPG ETFVLGNSLA RSLEPHSDSM DSASNPTNLV STSQRHRPLL SSCGLPPSTA
   541  SAVRRLCSRG VLKGSNERRD MESFWKLNRS PGSDRYLESR DASRLSGRDP SSWTVEDVMQ
   601  FVREADPQLG PHADLFRKHE IDGKALLLLR SDMMMKYMGL KLGPALKLSY HIDRLKQGKF

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against SCMH1 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)
0.45
Highest tissue expression
40 nTPM

Expression across tissuesHPA

Tissue

  • skeletal muscle: 40 nTPM
  • heart muscle: 36 nTPM
  • parathyroid gland: 31 nTPM
  • tongue: 30 nTPM
  • seminal vesicle: 28 nTPM
  • colon: 26 nTPM

Single-cell type

  • proximal tubule cells: 442 nCPM
  • choroid plexus epithelial cells: 438 nCPM
  • renal connecting tubule cells: 431 nCPM
  • pituicytes/fscs: 396 nCPM
  • early primary spermatocytes: 374 nCPM
  • adrenal medulla cells: 362 nCPM

Immune cell

  • plasmacytoid DC: 3.9 nTPM
  • memory B-cell: 2.5 nTPM
  • MAIT T-cell: 1.9 nTPM
  • memory CD4 T-cell: 1.9 nTPM
  • myeloid DC: 1.8 nTPM
  • gdT-cell: 1.6 nTPM

Brain region

  • choroid plexus: 29 nTPM
  • hypothalamus: 26 nTPM
  • cerebral cortex: 25 nTPM
  • basal ganglia: 24 nTPM
  • cerebellum: 23 nTPM
  • amygdala: 23 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)
0.68
gnomAD pLI
0
gnomAD missense Z
1.95
DepMap mean gene effect
-0.06
DepMap dependency class
none

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 6% 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 SCMH1 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 SCMH1 as an antibody target. Whether an autoantibody or antibody against SCMH1 could matter depends on whether native SCMH1 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

SCMH1 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 SCMH1 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/SCMH1. 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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