Recombinant human NME4 protein

NME4, also known as nucleoside diphosphate kinase, mitochondrial, belongs to the NDK family. NME4 are ubiquitous enzymes that catalyze transfer of gamma-phosphates, via a phosphohistidine intermediate, between nucleoside and dioxynucleoside tri- and diphosphates. The enzymes are products of the nm23 gene family, which includes NME4. NME4 plays a major role in the synthesis of nucleoside triphosphates other than ATP. Recombinant human NME4 protein, fused to His-tag at N-terminus, was expressed in E. coli and purified by using conventional chromatography.

Product Specifications

Specifications

Specific activity is > 120 units/mg, and is defined as the amount of enzyme that convert 1.0 umole each of ATP and TDP to ADP and TTP per minute at pH 7.5 at 25C in a couple system with PK/LDH.

Product Name Alternative

Nucleoside diphosphate kinase mitochondrial, Nucleoside diphosphate kinase, mitochondrial, NDK, NDPKD, nm23-H4, NM23D

Expression System

E.coli

Antigen Species

Human

Tag

His-Tag

Applications

SDS-PAGE, Enzyme Activity

Concentration

0.5 mg/mL (determined by Bradford assay)

Purity

> 90% by SDS-PAGE

Bioactivity

Specific activity is > 120unit/mg, and is defined as the amount of enzyme that convert 1.0 umole each of ATP and TDP to ADP and TTP per minute at pH 7.5 at 25C in a couple system with PK/LDH.

Molecular Weight

19.6 kDa (176aa) confirmed by MALDI-TOF

Additionnal Information

NME4, Nucleoside diphosphate kinase mitochondrial, Nucleoside diphosphate kinase, mitochondrial, NDK, NDPKD, nm23-H4, NM23D, ATGP3254-10 µg, ATGP3254-20 µg, ATGP3254-50 µg, ATGP3254-100 µg, ATGP3254-250 µg, ATGP3254-500 µg, ATGP3254-1 mg, ATGP3254-10, ATGP3254-20, ATGP3254-50, ATGP3254-100, ATGP3254-250, ATGP3254-500, ATGP3254-1

References & Citations

Milon L., et al. (1997) Hum. Genet. 99:550-557; ; Milon L., et al. (2000) Biol. Chem. 275:14264-14272

Storage Conditions

Can be stored at 2°C to 8°C for 1 week. For long term storage, aliquot and store at -20C to -80C. Avoid repeated freezing and thawing cycles.

Formulation

Liquid in. 20 mM Tris-HCl buffer (pH 8.0) containing 40% glycerol, 0.2M NaCl

Scientific Category

Metabolism

NCBI Accession Number

NP_005000

Uniprot Accession Number

O00746

Species

Human

AA Sequence

PSWTRERTL VAVKPDGVQR RLVGDVIQRF ERRGFTLVGM KMLQAPESVL AEHYQDLRRK PFYPALIRYM SSGPVVAMVW EGYNVVRASR AMIGHTDSAE AAPGTIRGDF SVHISRNVIH ASDSVEGAQR EIQLWFQSSE LVSWADGGQH SSIHPA

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