ID   ALR1_SHIBO              Reviewed;         359 AA.
AC   P0A6B6; P29743; P78136;
DT   07-JUN-2005, integrated into UniProtKB/Swiss-Prot.
DT   07-JUN-2005, sequence version 1.
DT   03-AUG-2022, entry version 70.
DE   RecName: Full=Alanine racemase, biosynthetic;
DE            EC=5.1.1.1;
GN   Name=alr;
OS   Shigella boydii.
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Shigella.
OX   NCBI_TaxID=621;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA], PROTEIN SEQUENCE OF 1-21, AND
RP   CHARACTERIZATION.
RX   PubMed=11676496; DOI=10.1006/bbrc.2001.5817;
RA   Yokoigawa K., Hirasawa R., Ueno H., Okubo Y., Umesako S., Soda K.;
RT   "Gene cloning and characterization of alanine racemases from Shigella
RT   dysenteriae, Shigella boydii, Shigella flexneri, and Shigella sonnei.";
RL   Biochem. Biophys. Res. Commun. 288:676-684(2001).
CC   -!- FUNCTION: Catalyzes the interconversion of L-alanine and D-alanine.
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   -!- COFACTOR:
CC       Name=pyridoxal 5'-phosphate; Xref=ChEBI:CHEBI:597326;
CC   -!- BIOPHYSICOCHEMICAL PROPERTIES:
CC       pH dependence:
CC         Optimum pH is 8-10.;
CC       Temperature dependence:
CC         Optimum temperature is 50 degrees Celsius.;
CC   -!- PATHWAY: Amino-acid biosynthesis; D-alanine biosynthesis; D-alanine
CC       from L-alanine: step 1/1.
CC   -!- PATHWAY: Cell wall biogenesis; peptidoglycan biosynthesis.
CC   -!- SUBUNIT: Monomer but homodimer in the presence of the substrate.
CC   -!- SIMILARITY: Belongs to the alanine racemase family. {ECO:0000305}.
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DR   EMBL; AB070926; BAB71771.1; -; Genomic_DNA.
DR   RefSeq; WP_001147328.1; NZ_NQDC01000066.1.
DR   AlphaFoldDB; P0A6B6; -.
DR   SMR; P0A6B6; -.
DR   GeneID; 66672033; -.
DR   BRENDA; 5.1.1.1; 5710.
DR   UniPathway; UPA00042; UER00497.
DR   UniPathway; UPA00219; -.
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:0071555; P:cell wall organization; IEA:UniProtKB-KW.
DR   GO; GO:0030632; P:D-alanine biosynthetic process; IEA:UniProtKB-UniPathway.
DR   GO; GO:0009252; P:peptidoglycan biosynthetic process; IEA:UniProtKB-UniPathway.
DR   GO; GO:0008360; P:regulation of cell shape; IEA:UniProtKB-KW.
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   1: Evidence at protein level;
KW   Cell shape; Cell wall biogenesis/degradation; Direct protein sequencing;
KW   Isomerase; Peptidoglycan synthesis; Pyridoxal phosphate.
FT   CHAIN           1..359
FT                   /note="Alanine racemase, biosynthetic"
FT                   /id="PRO_0000114563"
FT   ACT_SITE        34
FT                   /note="Proton acceptor; specific for D-alanine"
FT                   /evidence="ECO:0000250"
FT   ACT_SITE        255
FT                   /note="Proton acceptor; specific for L-alanine"
FT                   /evidence="ECO:0000250"
FT   BINDING         129
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000250"
FT   BINDING         303
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000250"
FT   MOD_RES         34
FT                   /note="N6-(pyridoxal phosphate)lysine"
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   359 AA;  39153 MW;  FDE9B438115342C2 CRC64;
     MQAATVVINR RALRHNLQRL RELAPASKMV AVVKANAYGH GLLETARTLP DADAFGVARL
     EEALRLRAGG ITKPVLLLEG FFDARDLPTI SAQHFHTAVH NEEQLAALEE ASLDEPVTVW
     MKLDTGMHRL GVRPEQAEAF YHRLTQCKNV RQPVNIVSHF ARADEPKCGA TEKQLAIFNT
     FCEGKPGQRS IAASGGILLW PQSHFDWVRP GIILYGVSPL EDRSTGADFG CQPVMSLTSS
     LIAVREHKAG EPVGYGGTWV SERDTRLGVV AMGYGDGYPR AAPSGTPVLV NGREVPIVGR
     VAMDMICVDL GPQAQDKAGD PVILWGEGLP VERIAEMTKV SAYELITRLT SRVAMKYVD