Skip to Content
Merck
CN
All Photos(2)

Documents

Safety Information

P5381

Sigma-Aldrich

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

Type III, ammonium sulfate suspension, ≥400 units/mg protein (biuret)

Sign Into View Organizational & Contract Pricing
All Photos(2)
Synonym(s):
D-Glucose-6-phosphate ketol-isomerase, PGI, Phosphosaccharomutase
CAS Number:
9001-41-6
Enzyme Commission number:
5.3.1.9 (BRENDA, IUBMB)
EC Number:
232-603-1
MDL number:
MFCD00131887
UNSPSC Code:
12352204
NACRES:
NA.54

biological source

bakers yeast

Quality Level

200

type

Type III

form

ammonium sulfate suspension

specific activity

≥400 units/mg protein (biuret)

mol wt

tetramer 119,500 Da±600

concentration

≥3 mg/mL protein Biuret

technique(s)

activity assay: suitable

color

white

Protein ID accession no.

NP_009755.1

UniProt accession no.

P12709

storage temp.

2-8°C

Gene Information

yeast ... PGI1(852495)

Looking for similar products? Visit Product Comparison Guide

General description

Research area: Cell Signaling

Phosphoglucose Isomerase ubiquitous multifunctional cytosolic protein. This dimeric protein has a molecular weight of approximately 119,500 ± 600 and is composed of four subunits that are nearly identical.

Application

Phosphoglucose Isomerase from baker′s yeast (S. cerevisiae) has been used:
  • to convert fructose-6-phosphate to glucose-6-phosphate during the enzymatic measurement of serum mannose levels.
  • as one of the enzymes in the series of four enzyme-coupled reactions to measure phosphomannomutase (PMM) activity.
  • to convert fructose to glucose while evaluating fructose content in kudzu roots.

Biochem/physiol Actions

Phosphoglucose Isomerase(PGI) is an enzyme crucial for the interconversion of D-glucose 6-phosphate and D-fructose 6-phosphate. PGI is responsible for the second step of glycolysis and is involved in glucogenesis and pentose phosphate pathway (PPP). It is highly conserved in bacteria and eukaryotes. PGI plays a vital role in the survival of A. fumigatus and demonstrates diverse functions that encompass development, biosynthesis of cell wall glucan, and virulence.Phosphoglucose Isomerase functions as an isomerase, neuroleukin, autocrine motility factor, and a differentiation and maturation mediator.

Unit Definition

One unit will convert 1.0 μmole of D-fructose 6-phosphate to D-glucose 6-phosphate per min at pH 7.4 at 25 °C.

Physical form

Crystalline suspension in 2.6 M (NH4)2SO4 containing 0.1 mM magnesium acetate, pH 7.0

Pictograms

Health hazard
GHS08

Signal Word

Danger

Hazard Statements

H334

Precautionary Statements

P261 - P284 - P501

Hazard Classifications

Resp. Sens. 1

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  4. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

  5. What is the substrate for Phosphoglucose Isomerase from baker's yeast (e.g., Product No. P5381)?

    The substrate for PGI is D-fructose-6-phosphate, according to our Enzyme Assay procedure.

  6. What is the typical protein concentration for Product No. P5381 (PGI)?

    The protein concentration of Product No. P5381 (PGI) can vary from lot-to-lot. It is typically in the range of 5-20 mg protein per mL. The lot-specific concentration will be given on the certificate of analysis.

  7. What is the pH optimum of Phosphoglucose Isomerase from baker's yeast (e.g., Product No. P5381)?

    The pH optimum for yeast PGI (Product No. P5381) is 7, according to Marchand, M. et al., Eur. J. Biochem., 184, 455-464 (1989).

  8. What is the KM value for yeast PGI (Product No. P5381) with D-Fructose-6-phosphate as substrate, and what does that mean?

    KM is the concentration of substrate that leads to half-maximal velocity. The KM value for yeast PGI (Product No. P5381) with D-Fructose-6-phosphate as substrate is 0.167, according to Marchand, M. et al., Eur. J. Biochem., 184, 455-464 (1989).

  9. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

S L Lowe et al.
The Journal of biological chemistry, 250(1), 94-99 (1975-01-10)
Bakers' yeast phosphoglucose isomerase was studied by both chemical and physical methods to determine its submit structure. Gel filtration in 6 M guanidine HCl as well as acrylamide gel electrophoresis of sodium dodecyl sulfatedentured phosphoglucose isomerase showed two speices corresponding
Regulation of phosphoglucose isomerase/autocrine motility factor activities by the poly(ADP-ribose) polymerase family-14
Yanagawa T, et al.
Cancer Research, 67(18), 8682-8689 (2007)
Kudzu [Pueraria montana (Lour.) Merr. Variety lobata: A new source of carbohydrate for bioethanol production
Sage RF, et al.
Biomass and Bioenergy, 33, 57-61 (2009)
Phosphoglucose Isomerase Is Important for Aspergillus fumigatus Cell Wall Biogenesis
Zhou Y, et al.
mBio, 13(4) (2022)
Yeast Models of Phosphomannomutase 2 Deficiency, a Congenital Disorder of Glycosylation
Lao JP, et al.
G3 (Bethesda, Md.), 9(2), 413-423 (2019)
View All Related Papers

Articles

How to Work with Enzymes Supplied as Ammonium Sulfate Suspensions

Instructions for working with enzymes supplied as ammonium sulfate suspensions

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service