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1L4E

The crystal structure of CobT complexed with alpha-ribazole-5'-phosphate

Functional Information from GO Data
ChainGOidnamespacecontents
A0000166molecular_functionnucleotide binding
A0008939molecular_functionnicotinate-nucleotide-dimethylbenzimidazole phosphoribosyltransferase activity
A0009236biological_processcobalamin biosynthetic process
A0016740molecular_functiontransferase activity
A0016757molecular_functionglycosyltransferase activity
Functional Information from PDB Data
site_idAC1
Number of Residues17
DetailsBINDING SITE FOR RESIDUE RBZ A 990
ChainResidue
APRO32
ATHR180
AGLY202
AALA203
ALEU315
AGLU317
AHOH1012
AHOH1013
AHOH1027
AALA78
ASER80
AGLN88
AGLU174
AGLY176
AMET177
AALA178
AASN179

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues1
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"11441022","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues10
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"24121107","evidenceCode":"ECO:0000269"},{"source":"Reference","evidenceCode":"ECO:0000269","citation":{"citationType":"journal article","publicationDate":"2002","firstPage":"41120","lastPage":"41127","volume":"277","journal":"J. Biol. Chem.","title":"Capture of a labile substrate by expulsion of water molecules from the active site of nicotinate mononucleotide:5,6-dimethylbenzimidazole phosphoribosyltransferase (CobT) from Salmonella enterica.","authors":["Cheong C.G.","Escalante-Semerena J.C.","Rayment I."],"citationCrossReferences":[{"database":"DOI","id":"10.1074/jbc.M203535200"}]}}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues1
DetailsSite: {"description":"Important for substrate positioning, might be proton acceptor","evidences":[{"source":"PubMed","id":"24121107","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues1
DetailsSite: {"description":"Important for substrate positioning, might be proton acceptor","evidences":[{"source":"PubMed","id":"24121107","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"10587435","evidenceCode":"ECO:0000305"},{"source":"Reference","evidenceCode":"ECO:0000305","citation":{"citationType":"journal article","publicationDate":"2002","firstPage":"41120","lastPage":"41127","volume":"277","journal":"J. Biol. Chem.","title":"Capture of a labile substrate by expulsion of water molecules from the active site of nicotinate mononucleotide:5,6-dimethylbenzimidazole phosphoribosyltransferase (CobT) from Salmonella enterica.","authors":["Cheong C.G.","Escalante-Semerena J.C.","Rayment I."],"citationCrossReferences":[{"database":"DOI","id":"10.1074/jbc.M203535200"}]}}]}
ChainResidueDetails

Catalytic Information from CSA
site_idCSA1
Number of Residues1
DetailsAnnotated By Reference To The Literature 1d0s
ChainResidueDetails
AGLU317

site_idMCSA1
Number of Residues2
DetailsM-CSA 79
ChainResidueDetails
AGLU174electrostatic stabiliser, unknown
AGLU317activator, hydrogen bond acceptor, proton acceptor, unknown

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PDB entries from 2025-12-17

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