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T2507

Sigma-Aldrich

Triosephosphate Isomerase from baker′s yeast (S. cerevisiae)

Type I, ammonium sulfate suspension, ~10,000 units/mg protein

Synonym(s):

D-Glyceraldehyde-3-phosphate ketol-isomerase, TPI

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About This Item

CAS Number:
9023-78-3
Enzyme Commission number:
5.3.1.1 (BRENDA, IUBMB)
EC Number:
232-774-2
MDL number:
MFCD00082080
UNSPSC Code:
12352204
NACRES:
NA.54

type

Type I

Quality Level

200

form

ammonium sulfate suspension

specific activity

~10,000 units/mg protein

mol wt

53 kDa by equilibrium centrifugation

foreign activity

pyruvate kinase, lactic dehydrogenase, 3-phosphoglyceric phosphokinase, phosphoglucose isomerase, α-glycerophosphate dehydrogenase, aldolase, and glyceraldehyde-3-phosphate dehydrogenase <0.01%

storage temp.

2-8°C

Application

Triosephosphate isomerase has been used in a study to assess differential expression of fourteen proteins of uveal melanoma. Triosephosphate isomerase has also been used in a study to investigate the use of sigmoid pH gradients in free-flow isoelectric focusing of human endothelial cell proteins.

Unit Definition

One unit will convert 1.0 μmole D-glyceraldehyde 3-phosphate to dihydroxyacetone phosphate per min at pH 7.6 at 25 °C.

Physical form

Crystalline suspension in 2.7 M (NH4)2SO4, 0.5 mM EDTA, pH 6.5

Analysis Note

Protein determined by biuret.

Other Notes

Since the assay of this enzyme seems to be sensitive to minor variables, packages are dispensed per mg protein rather than in units.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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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Xiao Ma et al.
Electrophoresis, 33(9-10), 1349-1355 (2012-06-01)
Prefractionation of proteins enhances the resolution of proteome analysis of whole cells. Free-flow electrophoresis (FFE) provides a useful step in various prefractionation protocols, since matrix-free isoelectric focusing (FF-IEF) performed in this machine enables the enrichment of large, easily absorbable, sensitive
Annett Linge et al.
Investigative ophthalmology & visual science, 53(8), 4634-4643 (2012-05-10)
To compare the proteomic profiles of two categories of primary uveal melanoma tissue samples; those from patients who have subsequently developed metastatic disease and those who have not. Two-dimensional difference gel electrophoresis (2D DIGE) was performed on 25 uveal melanoma
Xiaochen He et al.
Journal of cellular physiology, 237(8), 3317-3327 (2022-05-28)
Hypertension is an important risk factor in the pathogenesis of diastolic dysfunction. Growing evidence indicates that glucose metabolism plays an essential role in diastolic dysfunction. TP53-induced glycolysis and apoptosis regulator (TIGAR) has been shown to regulate glucose metabolism and heart
Rongchang Yang et al.
Experimental parasitology, 137, 46-52 (2013-12-21)
A novel quantitative PCR (qPCR) for Giardia at the glutamate dehydrogenase (gdh) locus was developed and validated. The qPCR was used to screen a total of 3412 lamb faecal samples collected from approximately 1189 lambs at three sampling periods (weaning
Rebecca Blomberg et al.
Nature, 503(7476), 418-421 (2013-10-18)
Linus Pauling established the conceptual framework for understanding and mimicking enzymes more than six decades ago. The notion that enzymes selectively stabilize the rate-limiting transition state of the catalysed reaction relative to the bound ground state reduces the problem of
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Instructions for working with enzymes supplied as ammonium sulfate suspensions

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