ALR_LIMRT
ID ALR_LIMRT Reviewed; 375 AA.
AC Q9FCV2;
DT 05-MAR-2002, integrated into UniProtKB/Swiss-Prot.
DT 01-MAR-2001, sequence version 1.
DT 03-AUG-2022, entry version 93.
DE RecName: Full=Alanine racemase {ECO:0000255|HAMAP-Rule:MF_01201};
DE EC=5.1.1.1 {ECO:0000255|HAMAP-Rule:MF_01201};
GN Name=alr;
OS Limosilactobacillus reuteri (Lactobacillus reuteri).
OC Bacteria; Firmicutes; Bacilli; Lactobacillales; Lactobacillaceae;
OC Limosilactobacillus.
OX NCBI_TaxID=1598;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA], AND FUNCTION.
RC STRAIN=ATCC 53608 / 1063;
RX PubMed=11910493; DOI=10.1007/s00284-001-0030-8;
RA Thompson A., Griffin H., Gasson M.J.;
RT "Characterization of an alanine racemase gene from Lactobacillus reuteri.";
RL Curr. Microbiol. 44:246-250(2002).
CC -!- FUNCTION: Catalyzes the interconversion of L-alanine and D-alanine.
CC {ECO:0000305|PubMed:11910493}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=L-alanine = D-alanine; Xref=Rhea:RHEA:20249,
CC ChEBI:CHEBI:57416, ChEBI:CHEBI:57972; EC=5.1.1.1;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01201};
CC -!- COFACTOR:
CC Name=pyridoxal 5'-phosphate; Xref=ChEBI:CHEBI:597326;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01201};
CC -!- PATHWAY: Amino-acid biosynthesis; D-alanine biosynthesis; D-alanine
CC from L-alanine: step 1/1. {ECO:0000255|HAMAP-Rule:MF_01201}.
CC -!- SIMILARITY: Belongs to the alanine racemase family. {ECO:0000255|HAMAP-
CC Rule:MF_01201}.
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DR EMBL; AJ278312; CAC03497.1; -; Genomic_DNA.
DR AlphaFoldDB; Q9FCV2; -.
DR SMR; Q9FCV2; -.
DR UniPathway; UPA00042; UER00497.
DR GO; GO:0008784; F:alanine racemase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0030170; F:pyridoxal phosphate binding; IEA:UniProtKB-UniRule.
DR GO; GO:0030632; P:D-alanine biosynthetic process; IEA:UniProtKB-UniPathway.
DR Gene3D; 2.40.37.10; -; 1.
DR Gene3D; 3.20.20.10; -; 1.
DR HAMAP; MF_01201; Ala_racemase; 1.
DR InterPro; IPR000821; Ala_racemase.
DR InterPro; IPR009006; Ala_racemase/Decarboxylase_C.
DR InterPro; IPR011079; Ala_racemase_C.
DR InterPro; IPR001608; Ala_racemase_N.
DR InterPro; IPR020622; Ala_racemase_pyridoxalP-BS.
DR InterPro; IPR029066; PLP-binding_barrel.
DR Pfam; PF00842; Ala_racemase_C; 1.
DR Pfam; PF01168; Ala_racemase_N; 1.
DR PRINTS; PR00992; ALARACEMASE.
DR SMART; SM01005; Ala_racemase_C; 1.
DR SUPFAM; SSF50621; SSF50621; 1.
DR SUPFAM; SSF51419; SSF51419; 1.
DR TIGRFAMs; TIGR00492; alr; 1.
DR PROSITE; PS00395; ALANINE_RACEMASE; 1.
PE 3: Inferred from homology;
KW Isomerase; Pyridoxal phosphate.
FT CHAIN 1..375
FT /note="Alanine racemase"
FT /id="PRO_0000114529"
FT ACT_SITE 40
FT /note="Proton acceptor; specific for D-alanine"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01201"
FT ACT_SITE 265
FT /note="Proton acceptor; specific for L-alanine"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01201"
FT BINDING 137
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01201"
FT BINDING 312
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01201"
FT MOD_RES 40
FT /note="N6-(pyridoxal phosphate)lysine"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01201"
SQ SEQUENCE 375 AA; 41248 MW; 2912040451188DEB CRC64;
MVEGWHRASR LVVDAAAIRQ NVKKEIERLD PQSELFAVVK ANGYGHGLIP VARYTEQAGA
TGFCVAILDE ALTLREAGFA EPILVLGITN VKWAALAAEK NVSLTVGDVE WLTKAAPQLT
AEHPLKVHLA LDTGMGRIGF QESDGLNQAA ELLTNDPRFV FEGVFTHFAT ADEKDPTYFN
LQVDRFHKLV DTLPEKPRYV HVSNTATSLW HAACNGNLIR FGVGIYGMNP SGTVLEPPYD
LQPAMTLESQ LSFSKLLKKG RSVSYGATYT VEQDEWIGTV PIGYADGYPR CLQGFHVLVD
GHFCEIVGRV CMDQLMIRLP HEYPAGTSVI LAGKSQGKSI SMTDIADYAG TINYEITCGF
TERIPRVYKN NDIVK
