GTSE1
G2 and S phase-expressed protein 1
Also known as: B99, GTSE-1, GTSE1_HUMAN, Lnc_bc060912
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q9NYZ3
- Gene
- GTSE1
- Ensembl
- ENSG00000075218
- Chromosome
- 22
- Canonical length
- 739 aa
- Protein class
- Plasma proteins, Predicted intracellular proteins
- Subcellular location
- Plasma membrane,Centrosome
OverviewNCBI Gene
The protein encoded by this gene is only expressed in the S and G2 phases of the cell cycle, where it colocalizes with cytoplasmic tubulin and microtubules. In response to DNA damage, the encoded protein accumulates in the nucleus and binds the tumor suppressor protein p53, shuttling it out of the nucleus and repressing its ability to induce apoptosis. [provided by RefSeq, Jul 2008]
Canonical amino-acid sequenceUniProt
739 residues, UniProt reviewed canonical sequence.
>Q9NYZ3|GTSE1
1 MEGGGGRDEP SACRAGDVNM DDPKKEDILL LADEKFDFDL SLSSSSANED DEVFFGPFGH
61 KERCIAASLE LNNPVPEQPP LPTSESPFAW SPLAGEKFVE VYKEAHLLAL HIESSSRNQA
121 AQAAKPEDPR SQGVERFIQE SKLKINLFEK EKEMKKSPTS LKRETYYLSD SPLLGPPVGE
181 PRLLASSPAL PSSGAQARLT RAPGPPHSAH ALPRESCTAH AASQAATQRK PGTKLLLPRA
241 ASVRGRSIPG AAEKPKKEIP ASPSRTKIPA EKESHRDVLP DKPAPGAVNV PAAGSHLGQG
301 KRAIPVPNKL GLKKTLLKAP GSTSNLARKS SSGPVWSGAS SACTSPAVGK AKSSEFASIP
361 ANSSRPLSNI SKSGRMGPAM LRPALPAGPV GASSWQAKRV DVSELAAEQL TAPPSASPTQ
421 PQTPEGGGQW LNSSCAWSES SQLNKTRSIR RRDSCLNSKT KVMPTPTNQF KIPKFSIGDS
481 PDSSTPKLSR AQRPQSCTSV GRVTVHSTPV RRSSGPAPQS LLSAWRVSAL PTPASRRCSG
541 LPPMTPKTMP RAVGSPLCVP ARRRSSEPRK NSAMRTEPTR ESNRKTDSRL VDVSPDRGSP
601 PSRVPQALNF SPEESDSTFS KSTATEVARE EAKPGGDAAP SEALLVDIKL EPLAVTPDAA
661 SQPLIDLPLI DFCDTPEAHV AVGSESRPLI DLMTNTPDMN KNVAKPSPVV GQLIDLSSPL
721 IQLSPEADKE NVDSPLLKFLocalizationUniProt · AlphaFold · HPA
Whether an antibody against GTSE1 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)
- 0.72
- Highest tissue expression
- 18 nTPM
Expression across tissuesHPA
Tissue
- thymus: 18 nTPM
- bone marrow: 11 nTPM
- lymph node: 8.6 nTPM
- tonsil: 8.2 nTPM
- testis: 7.1 nTPM
- appendix: 4.8 nTPM
Single-cell type
- monocyte progenitors: 158 nCPM
- early primary spermatocytes: 72 nCPM
- megakaryocyte progenitors: 68 nCPM
- erythrocyte progenitors: 66 nCPM
- neutrophil progenitors: 52 nCPM
- differentiating spermatogonia: 49 nCPM
Immune cell
- neutrophil: 0.5 nTPM
- plasmacytoid DC: 0.4 nTPM
- eosinophil: 0.3 nTPM
- gdT-cell: 0.3 nTPM
- memory B-cell: 0.3 nTPM
- NK-cell: 0.3 nTPM
Brain region
- thalamus: 2.3 nTPM
- cerebellum: 2.2 nTPM
- pons: 2 nTPM
- white matter: 1.9 nTPM
- cerebral cortex: 1.7 nTPM
- hypothalamus: 1.7 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)
- 0.74
- gnomAD pLI
- 0
- gnomAD missense Z
- 0.06
- DepMap mean gene effect
- -0.25
- 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
Molecular functions
Cellular components
Protein domainsUniProt · Pfam · InterPro
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of GTSE1 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 GTSE1 as an antibody target. Whether an autoantibody or antibody against GTSE1 could matter depends on whether native GTSE1 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
GTSE1 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 GTSE1 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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