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Neighboring Group Participation in the Transition State of Human Purine Nucleoside Phosphorylase

The X-ray crystal structures of human purine nucleoside phosphorylase (PNP) with bound inosine or transition state analogues show His(257) within hydrogen-bonding distance to the 5′-hydroxyl. The mutants His257Phe, His257Gly, and His257Asp exhibited greatly decreased affinity for Immucillin-H (ImmH)...

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Detalhes bibliográficos
Main Authors: Murkin, Andrew S., Birck, Matthew R., Rinaldo-Matthis, Agnes, Shi, Wuxian, Taylor, Erika A., Schramm, Vern L.
Formato: Artigo
Idioma:Inglês
Publicado em: 2007
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Acesso em linha:https://ncbi.nlm.nih.gov/pmc/articles/PMC2526054/
https://ncbi.nlm.nih.gov/pubmed/17407325
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1021/bi700147b
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