ID   ALR_LACGA               Reviewed;         376 AA.
AC   Q046E7;
DT   05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT   14-NOV-2006, 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; OrderedLocusNames=LGAS_0267;
OS   Lactobacillus gasseri (strain ATCC 33323 / DSM 20243 / BCRC 14619 / CIP
OS   102991 / JCM 1131 / KCTC 3163 / NCIMB 11718 / NCTC 13722 / AM63).
OC   Bacteria; Firmicutes; Bacilli; Lactobacillales; Lactobacillaceae;
OC   Lactobacillus.
OX   NCBI_TaxID=324831;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 33323 / DSM 20243 / BCRC 14619 / CIP 102991 / JCM 1131 / KCTC
RC   3163 / NCIMB 11718 / NCTC 13722 / AM63;
RX   PubMed=17030793; DOI=10.1073/pnas.0607117103;
RA   Makarova K.S., Slesarev A., Wolf Y.I., Sorokin A., Mirkin B., Koonin E.V.,
RA   Pavlov A., Pavlova N., Karamychev V., Polouchine N., Shakhova V.,
RA   Grigoriev I., Lou Y., Rohksar D., Lucas S., Huang K., Goodstein D.M.,
RA   Hawkins T., Plengvidhya V., Welker D., Hughes J., Goh Y., Benson A.,
RA   Baldwin K., Lee J.-H., Diaz-Muniz I., Dosti B., Smeianov V., Wechter W.,
RA   Barabote R., Lorca G., Altermann E., Barrangou R., Ganesan B., Xie Y.,
RA   Rawsthorne H., Tamir D., Parker C., Breidt F., Broadbent J.R., Hutkins R.,
RA   O'Sullivan D., Steele J., Unlu G., Saier M.H. Jr., Klaenhammer T.,
RA   Richardson P., Kozyavkin S., Weimer B.C., Mills D.A.;
RT   "Comparative genomics of the lactic acid bacteria.";
RL   Proc. Natl. Acad. Sci. U.S.A. 103:15611-15616(2006).
CC   -!- FUNCTION: Catalyzes the interconversion of L-alanine and D-alanine. May
CC       also act on other amino acids. {ECO:0000255|HAMAP-Rule:MF_01201}.
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; CP000413; ABJ59675.1; -; Genomic_DNA.
DR   RefSeq; WP_003647847.1; NZ_WBMG01000001.1.
DR   AlphaFoldDB; Q046E7; -.
DR   SMR; Q046E7; -.
DR   PRIDE; Q046E7; -.
DR   GeneID; 66468378; -.
DR   KEGG; lga:LGAS_0267; -.
DR   HOGENOM; CLU_028393_2_1_9; -.
DR   OMA; WEILCGF; -.
DR   OrthoDB; 859043at2; -.
DR   BioCyc; LGAS324831:G1G6Y-265-MON; -.
DR   UniPathway; UPA00042; UER00497.
DR   Proteomes; UP000000664; Chromosome.
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..376
FT                   /note="Alanine racemase"
FT                   /id="PRO_1000066000"
FT   ACT_SITE        40
FT                   /note="Proton acceptor; specific for D-alanine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01201"
FT   ACT_SITE        270
FT                   /note="Proton acceptor; specific for L-alanine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01201"
FT   BINDING         138
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01201"
FT   BINDING         317
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   376 AA;  41419 MW;  AAFD9AD1D76AC8D0 CRC64;
     MVPGIHRPAV VKVNLGAIKR NIENEMQHLE PGQKMLAVVK ANGYGHGAVE VAKVADQIGA
     AGFCVAILDE ALELRRADIT KTILVLGVVS PEYAPIAAAN DISLTVPNLE WLKEAEKYLE
     NSDLQLKIHL GIDSGMGRIG FNEDKDFIAA NKFLENNDNF YIEGMFAHFA SADSSDETYF
     KHQCEKFNHM KSLLTVKPKW IHVDNTAASI FHNGIKSDLV RFGIGIYGLN PSSNPNSPDL
     KSKIALDPAL SFESELTHVK TIHQGDGVGY GSTFVADKDT IIGTVPVGYA DGFIRKFQGF
     KVKVGNTYCP IVGRICMDQF MVEMPKEMPL GTKVVIISDN PDDLNNIKAA ADYVDTIHYE
     VACLLNDRLP RVYYED