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AB132287

Recombinant Human eRF3/GSPT1 protein

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Recombinant Human eRF3/GSPT1 protein is a Human Full Length protein, in the 1 to 633 aa range, expressed in Wheat germ, suitable for SDS-PAGE, ELISA, WB.

View Alternative Names

ERF3A, Eukaryotic peptide chain release factor GTP-binding subunit ERF3A, Eukaryotic peptide chain release factor subunit 3a, eRF3a, G1 to S phase transition protein 1 homolog

1 Images
SDS-PAGE - Recombinant Human eRF3/GSPT1 protein (AB132287)
  • SDS-PAGE

Unknown

SDS-PAGE - Recombinant Human eRF3/GSPT1 protein (AB132287)

12.5% SDS-PAGE stained with Coomassie Blue showing ab132287.

Key facts

Expression system

Wheat germ

Tags

GST tag N-Terminus

Applications

WB, SDS-PAGE, ELISA

applications

Biologically active

No

Accession

P15170

Animal free

No

Carrier free

No

Species

Human

Storage buffer

pH: 8 Constituents: 0.79% Tris HCl, 0.31% Glutathione

storage-buffer

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Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Reactivity", "Dilution Info", "Notes"] }, "values": { "SDS-PAGE": { "reactivity":"TESTED_AND_REACTS", "dilution-info":"", "notes":"<p></p>" }, "ELISA": { "reactivity":"TESTED_AND_REACTS", "dilution-info":"", "notes":"<p></p>" }, "WB": { "reactivity":"TESTED_AND_REACTS", "dilution-info":"", "notes":"<p></p>" } } }
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Sequence info

[{"sequence":"MDPGSGGGGGGGGSSSGSSSSDSAPDCWDQADMEAPGPGPCGGGGSLAAAAEAQRENLSAAFSRQLNVNAKPFVPNVHAAEFVPSFLRCPAAPPPPAGGAANNHGAGSGAGGRAAPVESSQEEQSLCEGSNSAVSMELSEPIENGETEMSPEESWEHKEEISEAEPGGGSLGDGRPPEESAHEMMEEEEEIPKPKSVVAPPGAPKKEHVNVVFIGHVDAGKSTIGGQIMYLTGMVDKRTLEKYEREAKEKNRETWYLSWALDTNQEERDKGKTVEVGRAYFETEKKHFTILDAPGHKSFVPNMIGGASQADLAVLVISARKGEFETGFEKGGQTREHAMLAKTAGVKHLIVLINKMDDPTVNWSNERYEECKEKLVPFLKKVGFNPKKDIHFMPCSGLTGANLKEQSDFCPWYIGLPFIPYLDNLPNFNRSVDGPIRLPIVDKYKDMGTVVLGKLESGSICKGQQLVMMPNKHNVEVLGILSDDVETDTVAPGENLKIRLKGIEEEEILPGFILCDPNNLCHSGRTFDAQIVIIEHKSIICPGYNAVLHIHTCIEEVEITALICLVDKKSGEKSKTRPRFVKQDQVCIARLRTAGTICLETFKDFPQMGRFTLRDEGKTIAIGKVLKLVPEKD","proteinLength":"Full Length","predictedMolecularWeight":"94.8 kDa","actualMolecularWeight":null,"aminoAcidEnd":633,"aminoAcidStart":1,"nature":"Recombinant","expressionSystem":"Wheat germ","accessionNumber":"P15170","tags":[{"tag":"GST","terminus":"N-Terminus"}]}]
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Properties and storage information

Shipped at conditions
Dry Ice
Appropriate short-term storage conditions
-80°C
Appropriate long-term storage conditions
-80°C
Aliquoting information
Upon delivery aliquot
Storage information
Avoid freeze / thaw cycle
False
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Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

The eRF3/GSPT1 protein also known as GSPT1 plays an important role in translation termination. It works with eRF1 to release the newly synthesized polypeptide chain from the ribosome. GSPT1 is a GTPase of approximately 69 kDa commonly expressed in human tissues with higher concentrations found in proliferating cells such as those in the bone marrow and lymphoid tissues. It implements essential tasks in protein synthesis regulation by facilitating proper translation termination.
Biological function summary

GSPT1 is involved in processes beyond translation termination. It associates with complexes that regulate mRNA translation and stability. As part of the eRF3 pathway GSPT1 interacts with various translation and post-translation machinery. Its molecular function extends to include potential interactions with lncRNAs such as lnc-SNHG16 indicating a role in cellular processes like cell growth and division. GSPT1's interaction network suggests that it performs multifunction in cell regulation.

Pathways

GSPT1 integrates into the translation termination pathway tightly linking with the mRNA surveillance pathway. This protein is essential for efficient recognition and release of stop codons. In these pathways it collaborates with proteins such as eRF1 to regulate mRNA stability and translation accuracy. These interactions ensure the fidelity of protein biosynthesis and proper cellular function.

The role of GSPT1 extends to cancer and neurodegenerative diseases. Overexpression or mutations of GSPT1 links to various cancers including gastric and colorectal cancers where it affects cell proliferation pathways. The GSPT1-Myc axis appears to contribute significantly to oncogenesis acting with proteins like c-Myc to promote tumorigenesis. Additionally disruptions in GSPT1 function could associate with neurological disorders where translation termination processes malfunction although these aspects require further study.
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Specifications

Form

Liquid

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General info

Function

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 (PubMed : 15987998, PubMed : 19417105, PubMed : 2511002, PubMed : 27863242). GSPT1/ERF3A mediates ETF1/ERF1 delivery to stop codons : The eRF1-eRF3-GTP complex binds to a stop codon in the ribosomal A-site (PubMed : 27863242). GTP hydrolysis by GSPT1/ERF3A induces a conformational change that leads to its dissociation, permitting ETF1/ERF1 to accommodate fully in the A-site (PubMed : 16777602, PubMed : 27863242). 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 (PubMed : 24486019). Required for SHFL-mediated translation termination which inhibits programmed ribosomal frameshifting (-1PRF) of mRNA from viruses and cellular genes (PubMed : 30682371).

Sequence similarities

Belongs to the TRAFAC class translation factor GTPase superfamily. Classic translation factor GTPase family. ERF3 subfamily.

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Product protocols

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Target data

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 (PubMed : 15987998, PubMed : 19417105, PubMed : 2511002, PubMed : 27863242). GSPT1/ERF3A mediates ETF1/ERF1 delivery to stop codons : The eRF1-eRF3-GTP complex binds to a stop codon in the ribosomal A-site (PubMed : 27863242). GTP hydrolysis by GSPT1/ERF3A induces a conformational change that leads to its dissociation, permitting ETF1/ERF1 to accommodate fully in the A-site (PubMed : 16777602, PubMed : 27863242). 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 (PubMed : 24486019). Required for SHFL-mediated translation termination which inhibits programmed ribosomal frameshifting (-1PRF) of mRNA from viruses and cellular genes (PubMed : 30682371).
See full target information Eukaryotic peptide chain release factor GTP-binding subunit ERF3A
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