Seroatlas · Human Serome Atlas

SCAF4

SR-related and CTD-associated factor 4

Also known as: DKFZp434E098, KIAA1172, SCAF4_HUMAN, SFRS15, SRA4

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

Protein identityUniProt · HPA

UniProt accession
O95104
Gene
SCAF4
Ensembl
ENSG00000156304
Chromosome
21
Canonical length
1147 aa
Protein class
Plasma proteins, Predicted intracellular proteins
Subcellular location
Nucleoplasm

OverviewNCBI Gene

This gene likely encodes a member of the arginine/serine-rich splicing factor family. A similar protein in Rat appears to bind the large subunit of RNA polymerase II and provide a link between transcription and pre-mRNA splicing. Alternatively spliced transcript variants have been described. [provided by RefSeq, Feb 2009]

Canonical amino-acid sequenceUniProt

1147 residues, UniProt reviewed canonical sequence.

>O95104|SCAF4
     1  MDAVNAFNQE LFSLMDMKPP ISRAKMILIT KAAIKAIKLY KHVVQIVEKF IKKCKPEYKV
    61  PGLYVIDSIV RQSRHQFGTD KDVFGPRFSK NITATFQYLY LCPSEDKSKI VRVLNLWQKN
   121  GVFKIEIIQP LLDMAAGTSN AAPVAENVTN NEGSPPPPVK VSSEPPTQAT PNSVPAVPQL
   181  PSSDAFAAVA QLFQTTQGQQ LQQILQTFQQ PPKPQSPALD NAVMAQVQAI TAQLKTTPTQ
   241  PSEQKAAFPP PEQKTAFDKK LLDRFDYDDE PEAVEESKKE DTTAVTTTAP AAAVPPAPTA
   301  TVPAAAAPAA ASPPPPQAPF GFPGDGMQQP AYTQHQNMDQ FQPRMMGIQQ DPMHHQVPLP
   361  PNGQMPGFGL LPTPPFPPMA QPVIPPTPPV QQPFQASFQA QNEPLTQKPH QQEMEVEQPC
   421  IQEVKRHMSD NRKSRSRSAS RSPKRRRSRS GSRSRRSRHR RSRSRSRDRR RHSPRSRSQE
   481  RRDREKERER RQKGLPQVKP ETASVCSTTL WVGQLDKRTT QQDVASLLEE FGPIESINMI
   541  PPRGCAYIVM VHRQDAYRAL QKLSRGNYKV NQKSIKIAWA LNKGIKADYK QYWDVELGVT
   601  YIPWDKVKPE ELESFCEGGM LDSDTLNPDW KGIPKKPENE VAQNGGAETS HTEPVSPIPK
   661  PLPVPVPPIP VPAPITVPPP QVPPHQPGPP VVGALQPPAF TPPLGIPPPG FGPGVPPPPP
   721  PPPFLRPGFN PMHLPPGFLP PGPPPPITPP VSIPPPHTPP ISIPNSTIAG INEDTTKDLS
   781  IGNPIPTVVS GARGNAESGD SVKMYGSAVP PAAPTNLPTP PVTQPVSLLG TQGVAPGPVI
   841  GLQAPSTGLL GARPGLIPLQ RPPGMPPPHL QRFPLMPPRP MPPHMMHRGP PPGPGGFAMP
   901  PPHGMKGPFP PHGPFVRPGG MPGLGGPGPG PGGPEDRDGR QQPPQQPQQQ PQPQAPQQPQ
   961  QQQQQQPPPS QQPPPTQQQP QQFRNDNRQQ FNSGRDQERF GRRSFGNRVE NDRERYGNRN
  1021  DDRDNSNRDR REWGRRSPDR DRHRDLEERN RRSSGHRDRE RDSRDRESRR EKEEARGKEK
  1081  PEVTDRAGGN KTVEPPISQV GNVDTASELE KGVSEAAVLK PSEELPAEAT SSVEPEKDSG
  1141  SAAEAPR

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against SCAF4 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
18 nTPM

Expression across tissuesHPA

Tissue

  • thymus: 18 nTPM
  • skin: 18 nTPM
  • lymph node: 17 nTPM
  • skeletal muscle: 17 nTPM
  • testis: 17 nTPM
  • liver: 16 nTPM

Single-cell type

  • endometrial stromal cells: 121 nCPM
  • neutrophil progenitors: 121 nCPM
  • monocyte progenitors: 95 nCPM
  • monocytes: 89 nCPM
  • erythrocyte progenitors: 88 nCPM
  • sertoli cells: 85 nCPM

Immune cell

  • memory B-cell: 11 nTPM
  • eosinophil: 11 nTPM
  • intermediate monocyte: 11 nTPM
  • naive B-cell: 9.8 nTPM
  • gdT-cell: 9.7 nTPM
  • myeloid DC: 9.7 nTPM

Brain region

  • cerebral cortex: 29 nTPM
  • hypothalamus: 28 nTPM
  • cerebellum: 26 nTPM
  • white matter: 25 nTPM
  • medulla oblongata: 24 nTPM
  • midbrain: 23 nTPM

DiseaseUniProt · ClinVar · IEDB · PubMed

Four sources answering four different questions about SCAF4.

Disease | AllUniProt

Conditions SCAF4 is implicated in, by any mechanism.

Disease | GeneticClinVar

42 pathogenic / likely-pathogenic of 357 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)
0.11
gnomAD pLI
1
gnomAD missense Z
1.94
DepMap mean gene effect
-0.18
DepMap dependency class
selective

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 5% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).

OntologyGO

Biological processes

  • poly(A)-coupled
  • negative regulation of termination of RNA polymerase II transcription

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

KeywordsUniProt

InteractionsUniProt · HPA

Protein binding partners of SCAF4 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 SCAF4 as an antibody target. Whether an autoantibody or antibody against SCAF4 could matter depends on whether native SCAF4 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

SCAF4 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 SCAF4 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/SCAF4. 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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