Seroatlas · Human Serome Atlas

MTCP1

Protein p13 MTCP-1

Also known as: MTCP1_HUMAN, P13MTCP1, p8MTCP1, TCL1C

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

Protein identityUniProt · HPA

UniProt accession
P56278
Gene
MTCP1
Ensembl
ENSG00000214827
Chromosome
X
Canonical length
107 aa
Protein class
Cancer-related genes, Disease related genes, Predicted intracellular proteins
Subcellular location
Nucleoplasm,Plasma membrane

OverviewNCBI Gene

This gene was identified by involvement in some t(X;14) translocations associated with mature T-cell proliferations. This region has a complex gene structure, with a common promoter and 5' exon spliced to two different sets of 3' exons that encode two different proteins. This gene represents the upstream 13 kDa protein that is a member of the TCL1 family. This protein may be involved in leukemogenesis. [provided by RefSeq, Mar 2009]

Canonical amino-acid sequenceUniProt

107 residues, UniProt reviewed canonical sequence.

>P56278|MTCP1
     1  MAGEDVGAPP DHLWVHQEGI YRDEYQRTWV AVVEEETSFL RARVQQIQVP LGDAARPSHL
    61  LTSQLPLMWQ LYPEERYMDN NSRLWQIQHH LMVRGVQELL LKLLPDD

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against MTCP1 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)
0.34
Highest tissue expression
5.2 nTPM

Expression across tissuesHPA

Tissue

  • testis: 5.2 nTPM
  • skin: 3.9 nTPM
  • choroid plexus: 2.8 nTPM
  • bone marrow: 2.7 nTPM
  • epididymis: 2.5 nTPM
  • pancreas: 2.5 nTPM

Single-cell type

  • sertoli cells: 770 nCPM
  • cardiomyocytes: 142 nCPM
  • epicardial cells: 130 nCPM
  • leydig cells: 58 nCPM
  • retinal ganglion cells: 58 nCPM
  • myonuclei: 55 nCPM

Immune cell

  • MAIT T-cell: 0.3 nTPM
  • gdT-cell: 0.2 nTPM
  • memory CD4 T-cell: 0.2 nTPM
  • naive CD8 T-cell: 0.2 nTPM
  • classical monocyte: 0.1 nTPM
  • eosinophil: 0.1 nTPM

Brain region

  • cerebellum: 3.7 nTPM
  • medulla oblongata: 2.6 nTPM
  • choroid plexus: 2.5 nTPM
  • white matter: 2.5 nTPM
  • basal ganglia: 2.4 nTPM
  • cerebral cortex: 2.4 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)
0.85
gnomAD pLI
0.45
gnomAD missense Z
1.64
DepMap mean gene effect
0.2
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

Protein domainsUniProt · Pfam · InterPro

KeywordsUniProt

InteractionsUniProt · HPA

Protein binding partners of MTCP1 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 MTCP1 as an antibody target. Whether an autoantibody or antibody against MTCP1 could matter depends on whether native MTCP1 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

MTCP1 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 MTCP1 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/MTCP1. 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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