CGGBP1
CGG triplet repeat-binding protein 1
Also known as: CGBP1_HUMAN, CGGBP, p20-CGGBP
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q9UFW8
- Gene
- CGGBP1
- Ensembl
- ENSG00000163320
- Chromosome
- 3
- Canonical length
- 167 aa
- Protein class
- Predicted intracellular proteins
- Subcellular location
- Nucleoplasm
OverviewNCBI Gene
This gene encodes a CGG repeat-binding protein that primarily localizes to the nucleus. CGG trinucleotide repeats are implicated in many disorders as they often act as transcription- and translation-regulatory elements, can produce hairpin structures which cause DNA replication errors, and form regions prone to chromosomal breakage. CGG repeats are also targets for CpG methylation. In addition to its ability to bind CGG repeats and regulate transcription, this gene is believed to play a role in DNA damage repair and telomere protection. In vitro studies indicate this protein does not bind to methylated CpG sequences. [provided by RefSeq, Jul 2017]
Canonical amino-acid sequenceUniProt
167 residues, UniProt reviewed canonical sequence.
>Q9UFW8|CGGBP1
1 MERFVVTAPP ARNRSKTALY VTPLDRVTEF GGELHEDGGK LFCTSCNVVL NHVRKSAISD
61 HLKSKTHTKR KAEFEEQNVR KKQRPLTASL QCNSTAQTEK VSVIQDFVKM CLEANIPLEK
121 ADHPAVRAFL SRHVKNGGSI PKSDQLRRAY LPDGYENENQ LLNSQDCLocalizationUniProt · AlphaFold · HPA
Whether an antibody against CGGBP1 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)
- 0.43
- Highest tissue expression
- 80 nTPM
Expression across tissuesHPA
Tissue
- thymus: 80 nTPM
- bone marrow: 72 nTPM
- lymph node: 61 nTPM
- tonsil: 58 nTPM
- spleen: 50 nTPM
- ovary: 47 nTPM
Single-cell type
- cardiomyocytes: 490 nCPM
- epicardial cells: 482 nCPM
- adipocytes: 254 nCPM
- platelets: 211 nCPM
- myonuclei: 196 nCPM
- esophageal apical cells: 176 nCPM
Immune cell
- basophil: 108 nTPM
- eosinophil: 81 nTPM
- neutrophil: 77 nTPM
- non-classical monocyte: 52 nTPM
- T-reg: 49 nTPM
- naive B-cell: 48 nTPM
Brain region
- white matter: 74 nTPM
- choroid plexus: 60 nTPM
- hypothalamus: 60 nTPM
- cerebellum: 58 nTPM
- basal ganglia: 55 nTPM
- spinal cord: 54 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)
- 0.53
- gnomAD pLI
- 0.82
- gnomAD missense Z
- 1.57
- DepMap mean gene effect
- -0.08
- 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
- epigenetic regulation of gene expression
- negative regulation of transcription by RNA polymerase II
- regulation of gene expression
Molecular functions
Cellular components
Protein domainsUniProt · Pfam · InterPro
- CGG triplet repeat-binding protein 1
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of CGGBP1 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 CGGBP1 as an antibody target. Whether an autoantibody or antibody against CGGBP1 could matter depends on whether native CGGBP1 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
CGGBP1 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 CGGBP1 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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