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4K8G

Crystal structure of D-Mannonate dehydratase from Novosphingobium aromaticivorans mutant (V161A, R163A, K165G, L166A, Y167G, Y168A, E169G)

Functional Information from GO Data
ChainGOidnamespacecontents
A0000287molecular_functionmagnesium ion binding
A0008927molecular_functionmannonate dehydratase activity
A0009063biological_processamino acid catabolic process
A0016052biological_processcarbohydrate catabolic process
A0016829molecular_functionlyase activity
A0046872molecular_functionmetal ion binding
Functional Information from PDB Data
site_idAC1
Number of Residues9
DetailsBINDING SITE FOR RESIDUE GOL A 501
ChainResidue
AASN37
ATRP76
AGLU262
AHIS312
AALA314
AASP316
ALEU389
ATRP402
AHOH889

site_idAC2
Number of Residues5
DetailsBINDING SITE FOR RESIDUE MG A 502
ChainResidue
AASP210
AGLU236
AGLU262
AHOH666
AHOH1036

Functional Information from PROSITE/UniProt
site_idPS00908
Number of Residues26
DetailsMR_MLE_1 Mandelate racemase / muconate lactonizing enzyme family signature 1. AiAAVDmALwDIkAKmagmPLyqLLG
ChainResidueDetails
AALA85-GLY110

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues1
DetailsActive site: {"description":"Proton donor/acceptor","evidences":[{"source":"PubMed","id":"17944491","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues7
DetailsBinding site: {}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues2
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"17944491","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues1
DetailsSite: {"description":"Important for activity and substrate specificity; Ala is observed in family members with high D-mannonate dehydratase activity that have no activity with D-gluconate"}
ChainResidueDetails

Catalytic Information from CSA
site_idMCSA1
Number of Residues8
DetailsM-CSA 960
ChainResidueDetails
AARG147modifies pKa
AASP210metal ligand
AHIS212proton acceptor, proton donor
AGLU236metal ligand
AGLU262metal ligand
AARG283electrostatic stabiliser
AGLU339electrostatic stabiliser
ATRP402modifies pKa

247947

PDB entries from 2026-01-21

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