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GSPT1
HPA
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  • SUMMARY

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  • BRAIN

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  • STRUCT & INT

  • GSPT1
PROTEIN SUMMARY GENE INFORMATION RNA DATA ANTIBODY DATA
GENERAL INFORMATIONi

General description of the gene and the encoded protein(s) using information from HGNC and Ensembl, as well as predictions made by the Human Protein Atlas project.

Gene namei

Official gene symbol, which is typically a short form of the gene name, according to HGNC.

GSPT1
Synonyms eRF3a, ETF3A, GST1
Gene descriptioni

Full gene name according to HGNC.

G1 to S phase transition 1
Protein classi

Assigned HPA protein class(es) for the encoded protein(s).

Plasma proteins
Predicted locationi

All transcripts of all genes have been analyzed regarding the location(s) of corresponding protein based on prediction methods for signal peptides and transmembrane regions.

  • Genes with at least one transcript predicted to encode a secreted protein, according to prediction methods or to UniProt location data, have been further annotated and classified with the aim to determine if the corresponding protein(s) are secreted or actually retained in intracellular locations or membrane-attached.

  • Remaining genes, with no transcript predicted to encode a secreted protein, will be assigned the prediction-based location(s).

The annotated location overrules the predicted location, so that a gene encoding a predicted secreted protein that has been annotated as intracellular will have intracellular as the final location.

Intracellular
Protein evidence Evidence at protein level (all genes)
GENE INFORMATIONi

Gene information from Ensembl and Entrez, as well as links to available gene identifiers are displayed here. Information was retrieved from Ensembl if not indicated otherwise.

Chromosome 16
Cytoband p13.13
Chromosome location (bp) 11868128 - 11916082
Number of transcriptsi

Number of protein-coding transcripts from the gene as defined by Ensembl.

7
Ensembl ENSG00000103342 (version 109)
Entrez gene 2935
HGNC HGNC:4621
UniProt P15170 (UniProt - Evidence at protein level)
neXtProt NX_P15170
GeneCards GSPT1
Antibodypedia GSPT1 antibodies


PROTEIN FUNCTION
Protein function (UniProt)i

Useful information about the protein provided by UniProt.

GTPase component of the eRF1-eRF3-GTP ternary complex, a ternary complex that mediates translation termination in response to the termination codons UAA, UAG and UGA 1, 2, 3, 4. GSPT1/ERF3A mediates ETF1/ERF1 delivery to stop codons: The eRF1-eRF3-GTP complex binds to a stop codon in the ribosomal A-site 5. GTP hydrolysis by GSPT1/ERF3A induces a conformational change that leads to its dissociation, permitting ETF1/ERF1 to accommodate fully in the A-site 6, 7. Component of the transient SURF complex which recruits UPF1 to stalled ribosomes in the context of nonsense-mediated decay (NMD) of mRNAs containing premature stop codons 8. Required for SHFL-mediated translation termination which inhibits programmed ribosomal frameshifting (-1PRF) of mRNA from viruses and cellular genes 9.... show less
Molecular function (UniProt)i

Keywords assigned by UniProt to proteins due to their particular molecular function.

Hydrolase
Biological process (UniProt)i

Keywords assigned by UniProt to proteins because they are involved in a particular biological process.

Nonsense-mediated mRNA decay, Protein biosynthesis
Ligand (UniProt)i

Keywords assigned by UniProt to proteins because they bind, are associated with, or whose activity is dependent of some molecule.

GTP-binding, Nucleotide-binding
Gene summary (Entrez)i

Useful information about the gene from Entrez

Enables translation release factor activity. Involved in regulation of translational termination. Acts upstream of or within protein methylation. Predicted to be located in cytosol. Predicted to be part of translation release factor complex. [provided by Alliance of Genome Resources, Apr 2022]... show less
PROTEIN INFORMATIONi

The protein information section displays alternative protein-coding transcripts (splice variants) encoded by this gene according to the Ensembl database.

The Splice variant identifier links to the Ensembl website protein summary for the selected splice variant. The data in the Swissprot and TrEMBL columns links to corresponding pages in the UniProt database.

The protein classes assigned to this protein are shown if expanding the data in the protein class column. Parent protein classes are in bold font and subclasses are listed under the parent class.

The length of the protein (amino acid residues according to Ensembl), molecular mass (kDalton), predicted signal peptide and number of predicted transmembrane region(s) according to in-house majority decision methods based on sets of predictors are also reported.
Splice variant SwissProt TrEMBL Protein class Gene ontology Length & mass Signal peptide
(predicted)
Transmembrane regions
(predicted)
GSPT1-201
ENSP00000399539
ENST00000420576
P15170
[Direct mapping] Eukaryotic peptide chain release factor GTP-binding subunit ERF3A
Show all
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Plasma proteins
Mapped to neXtProt
   neXtProt - Evidence at protein level
Protein evidence (Kim et al 2014)
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0000082 [G1/S transition of mitotic cell cycle]
GO:0000166 [nucleotide binding]
GO:0000184 [nuclear-transcribed mRNA catabolic process, nonsense-mediated decay]
GO:0003723 [RNA binding]
GO:0003747 [translation release factor activity]
GO:0003924 [GTPase activity]
GO:0005515 [protein binding]
GO:0005525 [GTP binding]
GO:0005737 [cytoplasm]
GO:0005829 [cytosol]
GO:0006412 [translation]
GO:0006415 [translational termination]
GO:0006449 [regulation of translational termination]
GO:0006479 [protein methylation]
GO:0018444 [translation release factor complex]
GO:0110165 [cellular anatomical entity]
Show all
499 aa
55.8 kDa
No 0
GSPT1-202
ENSP00000398131
ENST00000434724
P15170
[Direct mapping] Eukaryotic peptide chain release factor GTP-binding subunit ERF3A
Show all
   SPOCTOPUS predicted secreted proteins
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Plasma proteins
Mapped to neXtProt
   neXtProt - Evidence at protein level
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0000082 [G1/S transition of mitotic cell cycle]
GO:0000166 [nucleotide binding]
GO:0000184 [nuclear-transcribed mRNA catabolic process, nonsense-mediated decay]
GO:0003723 [RNA binding]
GO:0003747 [translation release factor activity]
GO:0003924 [GTPase activity]
GO:0005515 [protein binding]
GO:0005525 [GTP binding]
GO:0005737 [cytoplasm]
GO:0005829 [cytosol]
GO:0006412 [translation]
GO:0006415 [translational termination]
GO:0006449 [regulation of translational termination]
GO:0006479 [protein methylation]
GO:0018444 [translation release factor complex]
GO:0110165 [cellular anatomical entity]
Show all
637 aa
68.7 kDa
No 0
GSPT1-203
ENSP00000408399
ENST00000439887
P15170
[Direct mapping] Eukaryotic peptide chain release factor GTP-binding subunit ERF3A
Show all
   SPOCTOPUS predicted secreted proteins
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Plasma proteins
Mapped to neXtProt
   neXtProt - Evidence at protein level
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0000082 [G1/S transition of mitotic cell cycle]
GO:0000166 [nucleotide binding]
GO:0000184 [nuclear-transcribed mRNA catabolic process, nonsense-mediated decay]
GO:0003723 [RNA binding]
GO:0003747 [translation release factor activity]
GO:0003924 [GTPase activity]
GO:0005515 [protein binding]
GO:0005525 [GTP binding]
GO:0005737 [cytoplasm]
GO:0005829 [cytosol]
GO:0006412 [translation]
GO:0006415 [translational termination]
GO:0006449 [regulation of translational termination]
GO:0006479 [protein methylation]
GO:0018444 [translation release factor complex]
GO:0110165 [cellular anatomical entity]
Show all
636 aa
68.6 kDa
No 0
GSPT1-204
ENSP00000454538
ENST00000562169
H3BMT9
[Direct mapping] Eukaryotic peptide chain release factor GTP-binding subunit ERF3A
Show all
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Protein evidence (Ezkurdia et al 2014)
Show all
94 aa
10.2 kDa
No 0
GSPT1-206
ENSP00000454351
ENST00000563468
P15170
[Direct mapping] Eukaryotic peptide chain release factor GTP-binding subunit ERF3A
Show all
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Plasma proteins
Mapped to neXtProt
   neXtProt - Evidence at protein level
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0000082 [G1/S transition of mitotic cell cycle]
GO:0000166 [nucleotide binding]
GO:0000184 [nuclear-transcribed mRNA catabolic process, nonsense-mediated decay]
GO:0003723 [RNA binding]
GO:0003747 [translation release factor activity]
GO:0003924 [GTPase activity]
GO:0005515 [protein binding]
GO:0005525 [GTP binding]
GO:0005737 [cytoplasm]
GO:0005829 [cytosol]
GO:0006412 [translation]
GO:0006415 [translational termination]
GO:0006449 [regulation of translational termination]
GO:0006479 [protein methylation]
GO:0018444 [translation release factor complex]
GO:0110165 [cellular anatomical entity]
Show all
499 aa
55.8 kDa
No 0
GSPT1-208
ENSP00000456057
ENST00000565267
H3BR35
[Direct mapping] Eukaryotic peptide chain release factor GTP-binding subunit ERF3A
Show all
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0000166 [nucleotide binding]
GO:0003924 [GTPase activity]
GO:0005525 [GTP binding]
GO:0006412 [translation]
GO:0110165 [cellular anatomical entity]
Show all
475 aa
52.8 kDa
No 0
GSPT1-210
ENSP00000456897
ENST00000568849
H3BSV8
[Direct mapping] Eukaryotic peptide chain release factor GTP-binding subunit ERF3A
Show all
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0003924 [GTPase activity]
GO:0005525 [GTP binding]
Show all
199 aa
22.2 kDa
No 0

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