SRBD1
S1 RNA-binding domain-containing protein 1
Also known as: FLJ10379, SRBD1_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q8N5C6
- Gene
- SRBD1
- Ensembl
- ENSG00000068784
- Chromosome
- 2
- Canonical length
- 995 aa
- Protein class
- Predicted intracellular proteins
- Subcellular location
- Mitochondria,Cytosol
OverviewNCBI Gene
Predicted to enable mRNA binding activity. Predicted to be a structural constituent of ribosome. Predicted to be involved in translation. [provided by Alliance of Genome Resources, Jul 2025]
Canonical amino-acid sequenceUniProt
995 residues, UniProt reviewed canonical sequence.
>Q8N5C6|SRBD1
1 MSSLPRRAKV QVQDVVLKDE FSSFSELSSA SEEDDKEDSA WEPQKKVPRS RKQPPPKESK
61 PKRMPRVKKN APQISDGSEV VVVKEELNSS VAIADTALED RKNKLDTVQT LKTAKTKQKC
121 AAQPHTVRRT KKLKVEEETS KASNLEGESN SSETPSTSTV WGGTCKKEEN DDDFTFGQSA
181 LKKIKTETYP QGQPVKFPAN ANSTKEEVEM NWDMVQVLSE RTNIEPWVCA NIIRLFNDDN
241 TIPFIIRYRK ELINNLDADS LREVQQTLEE LRAVAKKVHS TIQKIKKEGK MSECLLKAML
301 NCKTFEELEH VSAPYKTGSK GTKAQRARQL GLEGAARALL EKPGELSLLS YIRPDVKGLS
361 TLQDIEIGVQ HILADMIAKD KDTLDFIRNL CQKRHVCIQS SLAKVSSKKV NEKDVDKFLL
421 YQHFSCNIRN IHHHQILAIN RGENLKVLTV KVNISDGVKD EFCRWCIQNR WRPRSFARPE
481 LMKILYNSLN DSFKRLIYPL LCREFRAKLT SDAEKESVMM FGRNLRQLLL TSPVPGRTLM
541 GVDPGYKHGC KLAIISPTSQ ILHTDVVYLH CGQGFREAEK IKTLLLNFNC STVVIGNGTA
601 CRETEAYFAD LIMKNYFAPL DVVYCIVSEA GASIYSVSPE ANKEMPGLDP NLRSAVSIAR
661 RVQDPLAELV KIEPKHIGVG MYQHDVSQTL LKATLDSVVE ECVSFVGVDI NICSEVLLRH
721 IAGLNANRAK NIIEWREKNG PFINREQLKK VKGLGPKSFQ QCAGFIRINQ DYIRTFCSQQ
781 TETSGQIQGV AVTSSADVEV TNEKQGKKKS KTAVNVLLKP NPLDQTCIHP ESYDIAMRFL
841 SSIGGTLYEV GKPEMQQKIN SFLEKEGMEK IAERLQTTVH TLQVIIDGLS QPESFDFRTD
901 FDKPDFKRSI VCLEDLQIGT VLTGKVENAT LFGIFVDIGV GKSGLIPIRN VTEAKLSKTK
961 KRRSLGLGPG ERVEVQVLNI DIPRSRITLD LIRVLLocalizationUniProt · AlphaFold · HPA
Whether an antibody against SRBD1 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)
- 0.36
- Highest tissue expression
- 12 nTPM
Expression across tissuesHPA
Tissue
- parathyroid gland: 12 nTPM
- epididymis: 11 nTPM
- thymus: 11 nTPM
- thyroid gland: 9.6 nTPM
- cervix: 9.2 nTPM
- testis: 8.5 nTPM
Single-cell type
- neutrophils: 267 nCPM
- somatotrophs: 180 nCPM
- hematopoietic stem cells: 169 nCPM
- neutrophil progenitors: 165 nCPM
- megakaryocyte-erythroid progenitors: 165 nCPM
- pituitary stem cells: 162 nCPM
Immune cell
- eosinophil: 13 nTPM
- non-classical monocyte: 12 nTPM
- NK-cell: 8.4 nTPM
- intermediate monocyte: 7 nTPM
- memory CD8 T-cell: 6.3 nTPM
- classical monocyte: 6.2 nTPM
Brain region
- choroid plexus: 8.8 nTPM
- medulla oblongata: 7.3 nTPM
- white matter: 7.1 nTPM
- thalamus: 7 nTPM
- hypothalamus: 6.7 nTPM
- spinal cord: 6.6 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)
- 0.98
- gnomAD pLI
- 0
- gnomAD missense Z
- -1.85
- DepMap mean gene effect
- -1.53
- DepMap dependency class
- pan
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 6% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
Molecular functions
Protein domainsUniProt · Pfam · InterPro
- S1 domain
- YqgF/RNase H-like domain
- RuvA domain 2-like
- Ribonuclease H-like superfamily
- Nucleic acid-binding, OB-fold
- Tex-like protein, HTH domain superfamily
- Tex-like domain superfamily
- YqgF/RNase H-like domain superfamily
- HHH domain 9
- Tex-like, central region
- S1 RNA binding domain
- Helix-hairpin-helix motif
- HHH domain
- Tex central region-like
- Tex-like protein, N-terminal
- Tex protein, YqgF-like domain
- Tex, S1 domain
- Small ribosomal subunit protein bS1-like
- Tex-like protein N-terminal domain
- Tex protein YqgF-like domain
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of SRBD1 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 SRBD1 as an antibody target. Whether an autoantibody or antibody against SRBD1 could matter depends on whether native SRBD1 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
SRBD1 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 SRBD1 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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