1vcd

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Crystal Structure of a T.thermophilus HB8 Ap6A hydrolase Ndx1Crystal Structure of a T.thermophilus HB8 Ap6A hydrolase Ndx1

Structural highlights

1vcd is a 2 chain structure with sequence from Thermus thermophilus HB8. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 1.7Å
Ligands:,
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT, TOPSAN

Function

NDX1_THETH Specifically hydrolyzes (di)adenosine polyphosphates but not ATP or diadenosine triphosphate, generating ATP as the product. Diadenosine hexaphosphate (Ap6A) is the preferred substrate and its hydrolyzation yields 2 ATP. It is the only enzyme that symmetrically hydrolyzes Ap6A. It also hydrolyzes diadenosine pentaphosphate (Ap5A), diadenosine tetraphosphate (Ap4A), adenosine tetraphosphate (p4A) to produce ATP and ADP, ATP and AMP, ATP and inorganic orthophosphate, respectively.[1]

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

See Also

References

  1. Iwai T, Kuramitsu S, Masui R. The Nudix hydrolase Ndx1 from Thermus thermophilus HB8 is a diadenosine hexaphosphate hydrolase with a novel activity. J Biol Chem. 2004 May 21;279(21):21732-9. Epub 2004 Mar 15. PMID:15024014 doi:http://dx.doi.org/10.1074/jbc.M312018200

1vcd, resolution 1.70Å

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OCA