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3A3U

Crystal structure of MqnD (TTHA1568), a menaquinone biosynthetic enzyme from Thermus thermophilus HB8

Replaces:  2DBP
Functional Information from GO Data
ChainGOidnamespacecontents
A0009234biological_processmenaquinone biosynthetic process
A0016829molecular_functionlyase activity
A0016830molecular_functioncarbon-carbon lyase activity
Functional Information from PDB Data
site_idAC1
Number of Residues4
DetailsBINDING SITE FOR RESIDUE K A 301
ChainResidue
APHE149
AHOH392
AHOH399
A7PE501

site_idAC2
Number of Residues10
DetailsBINDING SITE FOR RESIDUE TLA A 401
ChainResidue
AALA108
AILE144
AHIS145
ALEU176
AHOH356
AVAL39
ALYS55
ASER57
ATHR106
ATHR107

site_idAC3
Number of Residues13
DetailsBINDING SITE FOR RESIDUE 7PE A 501
ChainResidue
AARG148
APHE149
ATYR151
APRO152
AARG153
AGLU225
AALA229
AASP241
AHOH282
AK301
AHOH392
AHOH404
AHOH405

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues1
DetailsActive site: {"description":"Proton acceptor","evidences":[{"source":"PubMed","id":"19602440","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues3
DetailsBinding site: {"evidences":[{"evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

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PDB entries from 2025-12-03

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