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1XFC

The 1.9 A crystal structure of alanine racemase from Mycobacterium tuberculosis contains a conserved entryway into the active site

Functional Information from GO Data
ChainGOidnamespacecontents
A0003824molecular_functioncatalytic activity
A0005515molecular_functionprotein binding
A0005829cellular_componentcytosol
A0006522biological_processalanine metabolic process
A0008784molecular_functionalanine racemase activity
A0009252biological_processpeptidoglycan biosynthetic process
A0016853molecular_functionisomerase activity
A0030170molecular_functionpyridoxal phosphate binding
A0030632biological_processD-alanine biosynthetic process
B0003824molecular_functioncatalytic activity
B0005515molecular_functionprotein binding
B0005829cellular_componentcytosol
B0006522biological_processalanine metabolic process
B0008784molecular_functionalanine racemase activity
B0009252biological_processpeptidoglycan biosynthetic process
B0016853molecular_functionisomerase activity
B0030170molecular_functionpyridoxal phosphate binding
B0030632biological_processD-alanine biosynthetic process
Functional Information from PDB Data
site_idAC1
Number of Residues13
DetailsBINDING SITE FOR RESIDUE PLP A 390
ChainResidue
ALYS42
ATYR364
AHOH426
AHOH543
AHOH551
ATYR46
ATRP88
AHIS172
AASN212
ASER213
AARG228
AGLY230
AILE231

site_idAC2
Number of Residues11
DetailsBINDING SITE FOR RESIDUE PLP B 390
ChainResidue
BLYS42
BTYR46
BTRP88
BHIS172
BSER213
BARG228
BGLY230
BILE231
BTYR364
BHOH429
BHOH537

Functional Information from PROSITE/UniProt
site_idPS00395
Number of Residues11
DetailsALANINE_RACEMASE Alanine racemase pyridoxal-phosphate attachment site. AVvKADGYGHG
ChainResidueDetails
AALA39-GLY49

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues2
DetailsActive site: {"description":"Proton acceptor; specific for D-alanine","evidences":[{"source":"HAMAP-Rule","id":"MF_01201","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues1
DetailsActive site: {"description":"Proton acceptor; specific for L-alanine","evidences":[{"source":"HAMAP-Rule","id":"MF_01201","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues4
DetailsBinding site: {"evidences":[{"source":"HAMAP-Rule","id":"MF_01201","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues2
DetailsModified residue: {"description":"N6-(pyridoxal phosphate)lysine","evidences":[{"source":"PubMed","id":"15683232","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

Catalytic Information from CSA
site_idCSA1
Number of Residues2
DetailsAnnotated By Reference To The Literature 1bd0
ChainResidueDetails
ALYS42
AARG140

site_idCSA2
Number of Residues4
DetailsAnnotated By Reference To The Literature 1bd0
ChainResidueDetails
ACYS318
ATYR271
BLYS42
BARG140

site_idCSA3
Number of Residues1
DetailsAnnotated By Reference To The Literature 1bd0
ChainResidueDetails
BCYS318

238582

PDB entries from 2025-07-09

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