Seroatlas · Human Serome Atlas

DDX3Y

ATP-dependent RNA helicase DDX3Y

Also known as: DBY, DDX3Y_HUMAN

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

Protein identityUniProt · HPA

UniProt accession
O15523
Gene
DDX3Y
Ensembl
ENSG00000067048
Chromosome
Y
Canonical length
660 aa
Protein class
Disease related genes, Enzymes, Human disease related genes, Plasma proteins, Potential drug targets, Predicted intracellular proteins
Subcellular location
Cytosol

OverviewNCBI Gene

The protein encoded by this gene is a member of the DEAD-box RNA helicase family, characterized by nine conserved motifs, included the conserved Asp-Glu-Ala-Asp (DEAD) motif. These motifs are thought to be involved in ATP binding, hydrolysis, RNA binding, and in the formation of intramolecular interactions. This protein shares high similarity to DDX3X, on the X chromosome, but a deletion of this gene is not complemented by DDX3X. Mutations in this gene result in male infertility, a reduction in germ cell numbers, and can result in Sertoli-cell only sydrome. Pseudogenes sharing similarity to both this gene and the DDX3X paralog are found on chromosome 4 and the X chromosome. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Oct 2014]

Canonical amino-acid sequenceUniProt

660 residues, UniProt reviewed canonical sequence.

>O15523|DDX3Y
     1  MSHVVVKNDP ELDQQLANLD LNSEKQSGGA STASKGRYIP PHLRNREASK GFHDKDSSGW
    61  SCSKDKDAYS SFGSRDSRGK PGYFSERGSG SRGRFDDRGR SDYDGIGNRE RPGFGRFERS
   121  GHSRWCDKSV EDDWSKPLPP SERLEQELFS GGNTGINFEK YDDIPVEATG SNCPPHIENF
   181  SDIDMGEIIM GNIELTRYTR PTPVQKHAIP IIKGKRDLMA CAQTGSGKTA AFLLPILSQI
   241  YTDGPGEALK AVKENGRYGR RKQYPISLVL APTRELAVQI YEEARKFSYR SRVRPCVVYG
   301  GADIGQQIRD LERGCHLLVA TPGRLVDMME RGKIGLDFCK YLVLDEADRM LDMGFEPQIR
   361  RIVEQDTMPP KGVRHTMMFS ATFPKEIQML ARDFLDEYIF LAVGRVGSTS ENITQKVVWV
   421  EDLDKRSFLL DILGATGSDS LTLVFVETKK GADSLEDFLY HEGYACTSIH GDRSQRDREE
   481  ALHQFRSGKS PILVATAVAA RGLDISNVRH VINFDLPSDI EEYVHRIGRT GRVGNLGLAT
   541  SFFNEKNMNI TKDLLDLLVE AKQEVPSWLE NMAYEHHYKG GSRGRSKSNR FSGGFGARDY
   601  RQSSGSSSSG FGASRGSSSR SGGGGYGNSR GFGGGGYGGF YNSDGYGGNY NSQGVDWWGN

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against DDX3Y 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)
0.38
Highest tissue expression
90 nTPM

Expression across tissuesHPA

Tissue

  • bone marrow: 90 nTPM
  • testis: 66 nTPM
  • prostate: 32 nTPM
  • seminal vesicle: 29 nTPM
  • cerebellum: 29 nTPM
  • adipose tissue: 28 nTPM

Single-cell type

  • late spermatids: 1,005 nCPM
  • early spermatids: 307 nCPM
  • hematopoietic stem cells: 270 nCPM
  • neutrophils: 258 nCPM
  • megakaryocyte-erythroid progenitors: 212 nCPM
  • salivary myoepithelial cells: 183 nCPM

Immune cell

  • myeloid DC: 4.9 nTPM
  • gdT-cell: 4.4 nTPM
  • MAIT T-cell: 4 nTPM
  • intermediate monocyte: 3.9 nTPM
  • naive CD4 T-cell: 3.9 nTPM
  • classical monocyte: 3.8 nTPM

Brain region

  • choroid plexus: 17 nTPM
  • cerebellum: 15 nTPM
  • hypothalamus: 15 nTPM
  • white matter: 13 nTPM
  • cerebral cortex: 13 nTPM
  • midbrain: 11 nTPM

DiseaseUniProt · ClinVar · IEDB · PubMed

Four sources answering four different questions about DDX3Y.

Disease | GeneticClinVar

4 pathogenic / likely-pathogenic of 50 ClinVar records.

Conditions with pathogenic or likely-pathogenic variants.

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)
0.29
gnomAD pLI
0.96
gnomAD missense Z
2.1
DepMap mean gene effect
0.35
DepMap dependency class
none

OntologyGO

Biological processes

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

KeywordsUniProt

InteractionsUniProt · HPA

Protein binding partners of DDX3Y 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 DDX3Y as an antibody target. Whether an autoantibody or antibody against DDX3Y could matter depends on whether native DDX3Y is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

DDX3Y 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 DDX3Y as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/DDX3Y. 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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