NME1:NME3 heterohexamer, NME2P1 phosphorylate NDPs to NTPs

Stable Identifier
Reaction [transition]
Homo sapiens
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Nucleoside diphosphate kinases (NMEs) play an important role in the reversible phosphorylation of nuceloside diphosphates (NDP) other than ADP to form nuceloside triphosphates (NTP). The gamma phosphate of ATP is transferred to the beta phosphate on NDP via a ping-pong mechanism, using a phosphorylated active-site intermediate. Nucleoside diphosphate kinase 3 (NME3, aka nm23-H3) can readily form mixed hexamers with NME1, consistent with well-characterised NME family members. The overexpression of the NME3 gene inhibits differentiation and induces the apoptosis of myeloid precursor cell lines (Erent et al. 2001). A putative nucleoside diphosphate kinase (NME2P1) is proposed to perform the same NDPK function as NME1:NME3 heterohexamer based on sequence similarity.

Literature References
PubMed ID Title Journal Year
11277919 Structural and catalytic properties and homology modelling of the human nucleoside diphosphate kinase C, product of the DRnm23 gene

Erent, M, Gonin, P, Cherfils, J, Tissier, P, Raschella, G, Giartosio, A, Agou, F, Sarger, C, Lacombe, ML, Konrad, M, Lascu, I

Eur J Biochem 2001
Participant Of
Catalyst Activity
Catalyst Activity
nucleoside diphosphate kinase activity of NME1:NME3 heterohexamer, NME2P1 [cytosol]
Physical Entity
Orthologous Events