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A7510

Sigma-Aldrich

Adenosine 5′-Triphosphatase from porcine cerebral cortex

lyophilized powder, ≥0.3 units/mg protein, pH 7.8

Synonym(s):

ATP phosphohydrolase, ATPase

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About This Item

CAS Number:
9000-83-3
Enzyme Commission number:
3.6.1.3 (BRENDA, IUBMB)
MDL number:
MFCD00135671
UNSPSC Code:
12352204
NACRES:
NA.54

biological source

Porcine cerebral cortex

Quality Level

200

description

Sodium and Potassium-Activated

form

lyophilized powder

specific activity

≥0.3 units/mg protein, pH 7.8

composition

Protein, 5.0-25.0% biuret

technique(s)

inhibition assay: suitable

UniProt accession no.

P05024
P05027

storage temp.

−20°C

Gene Information

pig ... ATP1A1(397481) , ATP1B1(396898)

Application

ATPase is used to liberate inorganic phosphorus from ATP. ATPase, from porcine cerebral cortex, has been used in inhibition assays of Na/K-ATPase activity .

Biochem/physiol Actions

This membrane enzyme hydrolyzes ATP to ADP and orthophosphate. The hydrolysis is coupled with the exchange of sodium and potassium ions across the plasma membrane. The enzyme is present in almost all tissues of higher organisms, but it is most abundant in the kidney where it reabsorbs sodium ions from the glomerular filtrate. Na+,K+-ATPase is affected by changes in intracellular calcium. It is also sensitive to ouabain and inhibited by vanadate, and (in vitro) by SPAI-1, a peptide isolated from porcine duodenum. It has been reported to be regulated by phosphorylation by protein kinase A (PKA). Bufalin, and other cardiotonic steroids, may inhibit Na+/K+-ATPase activity and induce the differentiation of HL60, U937, and ML1 cells .
This membrane enzyme hydrolyzes ATP to ADP and orthophosphate. The hydrolysis is coupled with the exchange of sodium and potassium ions across the plasma membrane. The enzyme is present in almost all tissues of higher organisms, but it is most abundant in the kidney where it reabsorbs sodium ions from the glomerular filtrate. Na+,K+-ATPase is affected by changes in intracellular calcium. It is also sensitive to ouabain and inhibited by vanadate, and (in vitro) by SPAI-1, a peptide isolated from porcine duodenum. It has been reported to be regulated by phosphorylation by protein kinase A (PKA).

Unit Definition

One unit will liberate 1.0 μmole of inorganic phosphorus from ATP per min at pH 7.8 at 37 °C in the presence of Na+, K+, and Mg2+.

Physical form

Lyophilized powder containing 90% sucrose, 0.4% EDTA Na4 and 0.06% NaCl

Preparation Note

Sodium iodide extracted fraction of Nakao, et al., Biochem. Biophys. Res. Commun., 19, 755 (1965).

inhibitor

Product No.
Description
Pricing

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

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

A7510-VAR:
A7510-5UN-PW:
A7510-5X5UN:
A7510-5UN:
A7510PROC:
A7510-BULK:
A7510-PH:

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