Seroatlas · Human Serome Atlas

DDX53

Probable ATP-dependent RNA helicase DDX53

Also known as: CAGE, CT26, DDX53_HUMAN

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

Protein identityUniProt · HPA

UniProt accession
Q86TM3
Gene
DDX53
Ensembl
ENSG00000184735
Chromosome
X
Canonical length
631 aa
Protein class
Enzymes, Predicted intracellular proteins
Subcellular location
Nucleoplasm,Nucleoli,Cytosol

OverviewNCBI Gene

This intronless gene encodes a protein which contains several domains found in members of the DEAD-box helicase protein family. Other members of this protein family participate in ATP-dependent RNA unwinding. [provided by RefSeq, Sep 2011]

Canonical amino-acid sequenceUniProt

631 residues, UniProt reviewed canonical sequence.

>Q86TM3|DDX53
     1  MSHWAPEWKR AEANPRDLGA SWDVRGSRGS GWSGPFGHQG PRAAGSREPP LCFKIKNNMV
    61  GVVIGYSGSK IKDLQHSTNT KIQIINGESE AKVRIFGNRE MKAKAKAAIE TLIRKQESYN
   121  SESSVDNAAS QTPIGRNLGR NDIVGEAEPL SNWDRIRAAV VECEKRKWAD LPPVKKNFYI
   181  ESKATSCMSE MQVINWRKEN FNITCDDLKS GEKRLIPKPT CRFKDAFQQY PDLLKSIIRV
   241  GIVKPTPIQS QAWPIILQGI DLIVVAQTGT GKTLSYLMPG FIHLDSQPIS REQRNGPGML
   301  VLTPTRELAL HVEAECSKYS YKGLKSICIY GGRNRNGQIE DISKGVDIII ATPGRLNDLQ
   361  MNNSVNLRSI TYLVIDEADK MLDMEFEPQI RKILLDVRPD RQTVMTSATW PDTVRQLALS
   421  YLKDPMIVYV GNLNLVAVNT VKQNIIVTTE KEKRALTQEF VENMSPNDKV IMFVSQKHIA
   481  DDLSSDFNIQ GISAESLHGN SEQSDQERAV EDFKSGNIKI LITTDIVSRG LDLNDVTHVY
   541  NYDFPRNIDV YVHRVGYIGR TGKTGTSVTL ITQRDSKMAG ELIKILDRAN QSVPEDLVVM
   601  AEQYKLNQQK RHRETRSRKP GQRRKEFYFL S

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against DDX53 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)
0.34
Highest tissue expression
5 nTPM

Expression across tissuesHPA

Tissue

  • testis: 5 nTPM
  • adipose tissue: 0 nTPM
  • adrenal gland: 0 nTPM
  • amygdala: 0 nTPM
  • appendix: 0 nTPM
  • basal ganglia: 0 nTPM

Single-cell type

  • early spermatids: 61 nCPM
  • late primary spermatocytes: 44 nCPM
  • tuft cells: 12 nCPM
  • late spermatids: 10 nCPM
  • differentiating spermatogonia: 9.7 nCPM
  • early primary spermatocytes: 7.9 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

  • cerebellum: 5.6 nTPM
  • midbrain: 1.8 nTPM
  • basal ganglia: 1.6 nTPM
  • cerebral cortex: 1.6 nTPM
  • hypothalamus: 1.5 nTPM
  • thalamus: 1.5 nTPM

ReferencesPubMed · IEDB

Publications for DDX53 from three distinct lines of evidence, kept separate because they answer different questions: whether antibodies are directed at the protein, whether a B-cell epitope has been mapped on it, and whether a T-cell epitope has. Each is labelled with its source.

Sources: PubMed — antigen-level antibody evidence from a custom retrieval. Records matching a controlled set of autoantibody terms (the MeSH descriptors Autoantibodies and Autoantigens, with title and abstract term variants) were obtained through NCBI E-utilities, and their titles and abstracts parsed for constructions that direct an antibody at a named protein rather than for co-occurrence. Captured names were resolved against UniProt nomenclature and each antigen adjudicated individually against the source text. Bibliographic records from PubMed and MeSH, U.S. National Library of Medicine; citation metrics from NIH iCite (Hutchins et al., PLoS Biology 2016). Titles link to PubMed; abstracts are not reproduced here. The NLM does not endorse this analysis.

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
0.66
gnomAD missense Z
0.01
DepMap mean gene effect
0.07
DepMap dependency class
none

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 2% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).

OntologyGO

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

KeywordsUniProt

Antibody and autoantibody relevanceSeroatlas analysis

Seroatlas reads DDX53 as an antibody target. Whether an autoantibody or antibody against DDX53 could matter depends on whether native DDX53 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

DDX53 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 DDX53 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/DDX53. 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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