Accéder au contenu
Merck
Toutes les photos(2)

Documents

N9914

Sigma-Aldrich

Polynucleotide phosphorylase from Synechocystis sp.

recombinant, expressed in E. coli

Synonyme(s) :

PNPase, Polyribonucleotide Nucleotidyltransferase

Se connecterpour consulter vos tarifs contractuels et ceux de votre entreprise/organisme
Toutes les photos(2)

About This Item

Numéro de classification (Commission des enzymes):
2.7.7.8 (BRENDA, IUBMB)
Numéro MDL:
MFCD00131992
Code UNSPSC :
12352204
Nomenclature NACRES :
NA.54

Source biologique

bacterial (Synechocystis sp.)

Niveau de qualité

200

Produit recombinant

expressed in E. coli

Description

Histidine tagged

Pureté

90% (SDS-PAGE)

Forme

solution

Activité spécifique

≥500 units/mg protein

Poids mol.

85 kDa

Technique(s)

cell based assay: suitable

Adéquation

suitable for molecular biology

Application(s)

cell analysis

Conditions d'expédition

dry ice

Température de stockage

−70°C

Vous recherchez des produits similaires ? Visite Guide de comparaison des produits

Description générale

Polynuclotide phosphorlyase in spinach chloroplasts acts as a exonuclease and a poly(A) polymerase.

Application

Polynucleotide phosphorylase has been used in a study to discover that a major function of PNPase is the synthesis of CDP. It has also been used in a study to investigate the enzyme responsible for RNA 3′-tail synthesis in S. coelicolor.

Actions biochimiques/physiologiques

Polynucleotide phosphorylase (PNPase) is a bifunctional enzyme with a phosphorolytic 3′ to 5′ exoribonuclease activity and a 3′-terminal oligonucleotide polymerase activity.
Polynucleotide phosphorylase localizes to the intermembrane space of mitochondria and has a critical function in regulating mitochondrial homeostasis in human cells.

Définition de l'unité

One unit will polymerize 1.0 μmole of ADP, releasing 1.0 μmole of inorganic phosphate in 15 minutes, at pH 9.1 at 37 °C.
Supplied as a solution in 20 mM Hepes buffer pH 7.9, 0.1 mM EDTA, 2 mM DTT, 12.5 mM MgCl2, 60 mM KCl, 20% (w/v) Glycerol

Code de la classe de stockage

12 - Non Combustible Liquids

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Certificats d'analyse (COA)

Recherchez un Certificats d'analyse (COA) en saisissant le numéro de lot du produit. Les numéros de lot figurent sur l'étiquette du produit après les mots "Lot" ou "Batch".

Déjà en possession de ce produit ?

Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.

Consulter la Bibliothèque de documents

Ruth Rott et al.
The Journal of biological chemistry, 278(18), 15771-15777 (2003-02-26)
The mechanism of RNA degradation in Escherichia coli involves endonucleolytic cleavage, polyadenylation of the cleavage product by poly(A) polymerase, and exonucleolytic degradation by the exoribonucleases, polynucleotide phosphorylase (PNPase) and RNase II. The poly(A) tails are homogenous, containing only adenosines in
G G Liou et al.
Proceedings of the National Academy of Sciences of the United States of America, 98(1), 63-68 (2001-01-03)
RNase E isolated from Escherichia coli is contained in a multicomponent "degradosome" complex with other proteins implicated in RNA decay. Earlier work has shown that the C-terminal region of RNase E is a scaffold for the binding of degradosome components
A Danchin
DNA research : an international journal for rapid publication of reports on genes and genomes, 4(1), 9-18 (1997-02-28)
Genome comparison permits identification of chromosome regions conserved during evolution. Bacillus subtilis and Escherichia coli are so distant that there exists very few conserved landmarks in their genome organisation. Analysis of the conserved cmk rpsA cluster pinpointed the importance of
Patricia Bralley et al.
Microbiology (Reading, England), 152(Pt 3), 627-636 (2006-03-04)
As in other bacteria, 3'-tails are added post-transcriptionally to Streptomyces coelicolor RNA. These tails are heteropolymeric, and although there are several candidates, the enzyme responsible for their synthesis has not been definitively identified. This paper reports on three candidates for
Stefan Engelen et al.
BMC genomics, 13, 69-69 (2012-02-16)
Bacterial genomes displaying a strong bias between the leading and the lagging strand of DNA replication encode two DNA polymerases III, DnaE and PolC, rather than a single one. Replication is a highly unsymmetrical process, and the presence of two
Afficher tous les articles scientifiques apparentés

Notre équipe de scientifiques dispose d'une expérience dans tous les secteurs de la recherche, notamment en sciences de la vie, science des matériaux, synthèse chimique, chromatographie, analyse et dans de nombreux autres domaines..

Contacter notre Service technique