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GPX4 (U73C) FLAG-Tag Recombinant

CAT: 0421-100543Size: 100 µgDry Ice: YesHazardous: No
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CAT#:0421-100543Size:100 µg
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Background
GPX4, also known as glutathione peroxidase 4, is one of the eight isoenzymes of the glutathione peroxidase family. It is a monomer and uses selenium as co-factor. GXP4 works as a phospholipid hydroperoxidase in protecting cell membranes from lipid peroxidation. It uses reduced glutathione during the reduction of hydrogen peroxide, hydroperoxides and lipid peroxides. The synthesis of GXP4 is metabolically costly to cells, and it seems to be regulated by SLC7A11 (cystine/glutamate transporter) -mediated cystine uptake and activation of mTORC1 (mammalian target of rapamycin complex 1) . The U73C mutation has been shown to reduce enzyme activity. A mice knock-out model indicated the importance of this protein in embryonic development and lifespan. In humans, lack of GPX4 activity results in ferroptosis and spondylometaphyseal dysplasia. Its role in ferroptosis and link to mTOR1 make studies into GXP4 of interest in the field of cancer therapy. Further studies will elucidate its role in more detail and may provide therapeutic opportunities.
Description
Recombinant human GPX4 (glutathione peroxidase 4), encompassing amino acids 29-197 (end) . This construct contains an N-terminal FLAG-tag. This protein contains the mutation U73C. The recombinant protein was affinity purified.
CAS Number
9000-83-3
UniProt
P36969
Tag
N-terminal FLAG-tag
Applications
Useful for the study of enzyme kinetics, screening inhibitors, and selectivity profiling.
Concentration
0.30 mg/mL
Purity
≥ 90%
Format
Aqueous buffer solution
Shipping Conditions
-80°C
Storage Conditions
At least 6 months at -80°C.
Calculated Molecular Weight
21 kDa
Formulation
40 mM Tris-HCl, pH 8.0,110 mM NaCl, 2.2 mM KCl, 100 µg/ml FLAG peptide, and 20% glycerol

UniProtKB · P36969

Phospholipid hydroperoxide glutathione peroxidase GPX4

GPX4_HUMAN · Homo sapiens

View on UniProt ↗
Primary accession
P36969
Review status
UniProtKB reviewed (Swiss-Prot)
Gene
GPX4
Protein existence
1: Evidence at protein level
Organism
Homo sapiens (Human)
Taxonomy ID
9606
Alternative names
PHGPx
EC number
1.11.1.12
Processing
Precursor
Secondary accessions
O43381, Q6PJ59, Q9UPK2
Protein keywords

Technical term

3D-structureProteomics identificationReference proteome

Coding sequence diversity

Alternative initiationSelenocysteine

Cellular component

CytoplasmMitochondrion

Molecular function

Developmental proteinOxidoreductasePeroxidase

Disease

Dwarfism

PTM

HydroxylationPhosphoprotein

Biological process

Lipid metabolism

Domain

Transit peptide