Seroatlas · Human Serome Atlas

TSPY1

Testis-specific Y-encoded protein 1

Also known as: CT78, TSPY, TSPY1_HUMAN

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

Protein identityUniProt · HPA

UniProt accession: Q01534
Gene: TSPY1
Ensembl: ENSG00000258992
Chromosome: Y
Canonical length: 308 aa
Protein class: Disease related genes, Predicted intracellular proteins
Subcellular location: Cytosol

OverviewNCBI Gene

The protein encoded by this gene is found only in testicular tissue and may be involved in spermatogenesis. Many functional paralogs and pseudogenes of this gene are present in a cluster in humans, but only a single, nonfunctional orthologous gene is found in mouse. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Mar 2016]

Canonical amino-acid sequenceUniProt

308 residues, UniProt reviewed canonical sequence.

>Q01534|TSPY1
     1  MRPEGSLTYR VPERLRQGFC GVGRAAQALV CASAKEGTAF RMEAVQEGAA GVESEQAALG
    61  EEAVLLLDDI MAEVEVVAEE EGLVERREEA QRAQQAVPGP GPMTPESAPE ELLAVQVELE
   121  PVNAQARKAF SRQREKMERR RKPHLDRRGA VIQSVPGFWA NVIANHPQMS ALITDEDEDM
   181  LSYMVSLEVG EEKHPVHLCK IMLFFRSNPY FQNKVITKEY LVNITEYRAS HSTPIEWYPD
   241  YEVEAYRRRH HNSSLNFFNW FSDHNFAGSN KIAEILCKDL WRNPLQYYKR MKPPEEGTET
   301  SGDSQLLS

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against TSPY1 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): 0.44
Highest tissue expression: 7.1 nTPM

Expression across tissuesHPA

Tissue

testis: 7.1 nTPM
adipose tissue: 0 nTPM
adrenal gland: 0 nTPM
amygdala: 0 nTPM
appendix: 0 nTPM
basal ganglia: 0 nTPM

Single-cell type

differentiating spermatogonia: 0.4 nCPM
early primary spermatocytes: 0.3 nCPM
undifferentiated spermatogonia: 0.1 nCPM
adipocytes: 0 nCPM
adrenal cortex cells: 0 nCPM
adrenal medulla cells: 0 nCPM

Immune cell

basophil: 0 nTPM
classical monocyte: 0 nTPM
eosinophil: 0 nTPM
gdT-cell: 0 nTPM
intermediate monocyte: 0 nTPM
MAIT T-cell: 0 nTPM

Brain region

amygdala: 0 nTPM
basal ganglia: 0 nTPM
cerebellum: 0 nTPM
cerebral cortex: 0 nTPM
choroid plexus: 0 nTPM
hippocampal formation: 0 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): 1.87
gnomAD pLI: 0.31
gnomAD missense Z: 0.1

OntologyGO

Biological processes

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

KeywordsUniProt

Antibody and autoantibody relevanceSeroatlas analysis

Seroatlas reads TSPY1 as an antibody target. Whether an autoantibody or antibody against TSPY1 could matter depends on whether native TSPY1 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

TSPY1 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 TSPY1 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

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