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 HIDRLKQGKFLocalizationUniProt · 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
- Sterile alpha motif domain
- Mbt repeat domain
- Sterile alpha motif/pointed domain superfamily
- SLED domain
- Polycomb group protein, RNA binding region
- SLED domain superfamily
- Sex comb on midleg-like, SAM domain
- Polycomb group and chromatin remodeling factors
- SAM domain (Sterile alpha motif)
- mbt repeat
- SLED domain
- RNA binding Region
- Polycomb protein SCMH1, first MBT repeat
- Polycomb protein SCMH1, second MBT repeat
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.
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