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Safety Information

SRE0024

Sigma-Aldrich

Glyceraldehyde-3-phosphate dehydrogenase human

recombinant, expressed in Escherichia coli

Synonym(s):

D-Glyceraldehyde-3-phosphate: NAD+ oxidoreductase (phosphorylating), GAPDH, Triosephosphate dehydrogenase

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About This Item

Enzyme Commission number:
1.2.1.12
UNSPSC Code:
12352204
NACRES:
NA.54

recombinant

expressed in E. coli

Quality Level

specific activity

≥80 units/mg protein

storage temp.

−20°C

Related Categories

General description

Glyceraldehyde-3-phosphate dehydrogenase (GAPDH) localizes to the cytoplasm but can be translocated to the nucleus depending on cellular conditions. It is a tetramer containing identical chains. The gene encoding GAPDH is localized on human chromosome 12p13.

Application

Human glyceraldehyde-3-phosphate dehydrogenase has been used as a positive control for hydrogen sulfide treatment to detect sulfhydration of protein targets.

Biochem/physiol Actions

Glyceraldehyde-3-phosphate dehydrogenase (GAPDH) catalyzes the reversible oxidative phosphorylation of glyceraldehyde-phosphate, which is a critical energy-yielding step in carbohydrate metabolism. It binds to several proteins including actin, tubulin, amyloid precursor, polyglutamine peptides, DRPLA (dentatorubral-pallidoluysian atrophy) and huntingtin. Phosphorylated GAPDH associates with cytoskeletal elements and controls microtubule dynamics in the early secretory pathway. GAPDH is also a component of the functional GAIT (interferon-?-activated inhibitor of translation) mRNP (messenger ribonucleoprotein). GAPDH expression is dysregulated during melanoma progression.

Unit Definition

One unit will reduce 1.0 μmole of 3-phosphoglycerate to D-glyceraldehyde 3-phosphate per minute in a coupled system with 3-phosphoglyceric phosphokinase (3-PGK) at pH 7.6 at 25 °C

Physical form

This product is recombinant, human GAPDH expressed in E. coli with an N-terminal histidine tag and has a predicted molecular mass of 37,984 Da. The product is lyophilized from a buffered solution with stabilizers.

Other Notes

Alternative number: CAS Number 9001-50-7

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Eye Irrit. 2

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

常规特殊物品

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Gennaro Napolitano et al.
EMBO molecular medicine, 7(2), 158-174 (2015-01-15)
Metabolite accumulation in lysosomal storage disorders (LSDs) results in impaired cell function and multi-systemic disease. Although substrate reduction and lysosomal overload-decreasing therapies can ameliorate disease progression, the significance of lysosomal overload-independent mechanisms in the development of cellular dysfunction is unknown
Hydrogen sulfide inhibits Kir2 and Kir3 channels by decreasing sensitivity to the phospholipid PIP2.
Ha J, et al.
The Journal of Biological Chemistry, RA117-RA117 (2018)
Noncanonical function of glutamyl-prolyl-tRNA synthetase: gene-specific silencing of translation.
Sampath P, et al.
Cell, 119(2), 195-208 (2004)
Deregulation of glyceraldehyde-3-phosphate dehydrogenase expression during tumor progression of human cutaneous melanoma.
Ramos D, et al.
Anticancer Research, 35(1), 439-444 (2015)
Glyceraldehyde-3-phosphate dehydrogenase is phosphorylated by protein kinase Ciota /lambda and plays a role in microtubule dynamics in the early secretory pathway.
Tisdale E J.
The Journal of Biological Chemistry, 277(5), 3334-3341 (2002)

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