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1IM5

Crystal Structure of Pyrazinamidase of Pyrococcus horikoshii in Complex with Zinc

Functional Information from GO Data
ChainGOidnamespacecontents
A0016787molecular_functionhydrolase activity
A0016811molecular_functionhydrolase activity, acting on carbon-nitrogen (but not peptide) bonds, in linear amides
A0019363biological_processpyridine nucleotide biosynthetic process
A0046872molecular_functionmetal ion binding
Functional Information from PDB Data
site_idAC1
Number of Residues6
DetailsBINDING SITE FOR RESIDUE ZN A 400
ChainResidue
AASP52
AHIS54
AHIS71
AHOH203
AHOH214
AHOH223

Catalytic Information from CSA
site_idCSA1
Number of Residues5
Detailsa catalytic site defined by CSA, PubMed 11714269, 1381445, 10390238
ChainResidueDetails
AASP10
ACYS133
ACYS133
AALA129
ALYS94

site_idMCSA1
Number of Residues9
DetailsM-CSA 716
ChainResidueDetails
AASP10proton acceptor, proton donor
AASP52metal ligand
AHIS54metal ligand
ASER60electrostatic stabiliser
AHIS71metal ligand
ALYS94electrostatic stabiliser
AGLU101electrostatic stabiliser
AALA129electrostatic stabiliser
ACYS133electrostatic stabiliser

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PDB entries from 2025-06-18

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