PDK1 Protein, Human, Recombinant (His Tag)

Product Specifications

Background

Pyruvate dehydrogenase kinase, isozyme 1, also known as [Pyruvate dehydrogenase [lipoamide]] kinase isozyme 1, mitochondrial and PDK1, is a member of the PDK / BCKDK protein kinase family. PDK-1 is expressed predominantly in the heart. It contains one histidine kinase domain. Pyruvate dehydrogenase kinase (PDK) isoforms are molecular switches that downregulate the pyruvate dehydrogenase complex (PDC) by reversible phosphorylation in mitochondria. An inhibitory effect of lipoic acid on PDKs would result in less phosphorylation of E1 and hence increased PDC activity. At least two isoenzymic forms of pyruvate dehydrogenase kinase (PDK-1 and PDK-2) may be involved in the regulation of enzymatic activity of mammalian pyruvate dehydrogenase complex by phosphorylation. PDK-3 appears to have the highest specific activity among the three isoenzymes. PDK-1 inhibits the mitochondrial pyruvate dehydrogenase complex by phosphorylation of the E1 alpha subunit, thus contributing to the regulation of glucose metabolism.

Overview

A DNA sequence encoding the mature form of human PDK1 (NP_002601.1) (Ser 29-Ala 436) was expressed, with a polyhistidine tag at the N-terminus.

Synonyms

PDHK1 Protein, Human

Gene Name

Pyruvate dehydrogenase kinase, isozyme 1

Expression System

Baculovirus-Insect Cells

Tag

N-His

Endotoxin

< 1.0 EU per μg of the protein as determined by the LAL method.

Purity

> 90 % as determined by SDS-PAGE.

Activity

No Kinase Activity

Form

Lyophilized

Buffer

Lyophilized from sterile 20mM Tris, 500mM NaCl, pH 8.5, 10% glycerol Please contact us for any concerns or special requirements. Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween 80 are added as protectants before lyophilization. Please refer to the specific buffer information in the hard copy of CoA.

Function

Enzyme Proteins, Kinase proteins

Molecular Weight

The recombinant human PDK1 consists of 427 amino acids and has a calculated molecular mass of 48.6 kDa. It migrates as an approximately 45 kDa band in SDS-PAGE under reducing conditions.

Storage Conditions

In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature. Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise. Stable for 1 year at -20°C or below from date of shipment. For maximum recovery of product, centrifuge the original vial after thawing and opening the cap. For long-term storage, aliquot and store at -20°C or below. Avoid repeated freeze-thaw cycles.