Seroatlas · Human Serome Atlas

PASD1

Circadian clock protein PASD1

Also known as: CT63, PASD1_HUMAN

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

Protein identityUniProt · HPA

UniProt accession
Q8IV76
Gene
PASD1
Ensembl
ENSG00000166049
Chromosome
X
Canonical length
773 aa
Protein class
Predicted intracellular proteins
Subcellular location
Nuclear speckles

OverviewNCBI Gene

This gene encodes a protein that is thought to function as a transcription factor. The protein is a cancer-associated antigen that can stimulate autologous T-cell responses, and it is therefore considered to be a potential immunotherapeutic target for the treatment of various hematopoietic malignancies, including diffuse large B-cell lymphoma. [provided by RefSeq, May 2010]

Canonical amino-acid sequenceUniProt

773 residues, UniProt reviewed canonical sequence.

>Q8IV76|PASD1
     1  MKMRGEKRRD KVNPKSSQRK LNWIPSFPTY DYFNQVTLQL LDGFMITLST DGVIICVAEN
    61  ISSLLGHLPA EIVGKKLLSL LPDEEKDEVY QKIILKFPLL NSETHIEFCC HLKRGNVEHG
   121  DSSAYENVKF IVNVRDICNE FPVVFSGLFS SHLCADFAAC VPQEDRLYLV GNVCILRTQL
   181  LQQLYTSKAV SDEAVLTQDS DEEPFVGELS SSQGQRGHTS MKAVYVEPAA AAAAAAISDD
   241  QIDIAEVEQY GPQENVHMFV DSDSTYCSST VFLDTMPESP ALSLQDFRGE PEVNPLYRAD
   301  PVDLEFSVDQ VDSVDQEGPM DQQDPENPVA PLDQAGLMDP VDPEDSVDLG AAGASAQPLQ
   361  PSSPVAYDII SQELELMKKL KEQLEERTWL LHDAIQNQQN ALELMMDHLQ KQPNTLRHVV
   421  IPDLQSSEAV PKKQQKQHAG QVKRPLPHPK DVKCFCGLSL SNSLKNTGEL QEPCVAFNQQ
   481  QLVQQEQHLK EQQRQLREQL QQLREQRKVQ KQKKMQEKKK LQEQKMQEKK KLQEQRRQKK
   541  KKLQERKKWQ GQMLQKEPEE EQQKQQLQEQ PLKHNVIVGN ERVQICLQNP RDVSVPLCNH
   601  PVRFLQAQPI VPVQRAAEQQ PSGFYQDENC GQQEDESQSF YPEAYQGPPV NQLPLIDTSN
   661  SEAISSSSIP QFPITSDSTI STLETPQDYI RLWQELSDSL GPVVQVNTWS CDEQGTLHGQ
   721  PTYHQVQVSE VGVEGPPDPQ AFQGPAAYQP DQMRSAEQTR LMPAEQRDSN KPC

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against PASD1 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)
0.6
Highest tissue expression
15 nTPM

Expression across tissuesHPA

Tissue

  • testis: 15 nTPM
  • adipose tissue: 0 nTPM
  • adrenal gland: 0 nTPM
  • amygdala: 0 nTPM
  • appendix: 0 nTPM
  • basal ganglia: 0 nTPM

Single-cell type

  • differentiating spermatogonia: 84 nCPM
  • undifferentiated spermatogonia: 60 nCPM
  • early primary spermatocytes: 43 nCPM
  • cardiomyocytes: 0.9 nCPM
  • late primary spermatocytes: 0.8 nCPM
  • late spermatids: 0.8 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

DiseaseUniProt · ClinVar · IEDB · PubMed

Four sources answering four different questions about PASD1.

Disease | ImmuneIEDB

Conditions an epitope on PASD1 was assayed in.

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)
0.38
gnomAD pLI
0.82
gnomAD missense Z
-0.81
DepMap mean gene effect
0.11
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 PASD1 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 PASD1 as an antibody target. Whether an autoantibody or antibody against PASD1 could matter depends on whether native PASD1 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

PASD1 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 PASD1 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/PASD1. 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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