ID   Q31L38_SYNE7            Unreviewed;       406 AA.
AC   Q31L38;
DT   06-DEC-2005, integrated into UniProtKB/TrEMBL.
DT   06-DEC-2005, sequence version 1.
DT   27-MAR-2024, entry version 122.
DE   RecName: Full=Alanine racemase {ECO:0000256|HAMAP-Rule:MF_01201};
DE            EC=5.1.1.1 {ECO:0000256|HAMAP-Rule:MF_01201};
GN   OrderedLocusNames=Synpcc7942_2201 {ECO:0000313|EMBL:ABB58231.1};
OS   Synechococcus elongatus (strain ATCC 33912 / PCC 7942 / FACHB-805)
OS   (Anacystis nidulans R2).
OC   Bacteria; Cyanobacteriota; Cyanophyceae; Synechococcales; Synechococcaceae;
OC   Synechococcus.
OX   NCBI_TaxID=1140 {ECO:0000313|EMBL:ABB58231.1, ECO:0000313|Proteomes:UP000889800};
RN   [1] {ECO:0000313|Proteomes:UP000889800}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 33912 / PCC 7942 / FACHB-805
RC   {ECO:0000313|Proteomes:UP000889800};
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina T.,
RA   Hammon N., Israni S., Pitluck S., Schmutz J., Larimer F., Land M.,
RA   Kyrpides N., Lykidis A., Richardson P.;
RT   "Complete sequence of chromosome 1 of Synechococcus elongatus PCC 7942.";
RL   Submitted (AUG-2005) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Catalyzes the interconversion of L-alanine and D-alanine. May
CC       also act on other amino acids. {ECO:0000256|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:0000256|HAMAP-Rule:MF_01201};
CC   -!- COFACTOR:
CC       Name=pyridoxal 5'-phosphate; Xref=ChEBI:CHEBI:597326;
CC         Evidence={ECO:0000256|ARBA:ARBA00001933, ECO:0000256|HAMAP-
CC         Rule:MF_01201, ECO:0000256|PIRSR:PIRSR600821-50};
CC   -!- PATHWAY: Amino-acid biosynthesis; D-alanine biosynthesis; D-alanine
CC       from L-alanine: step 1/1. {ECO:0000256|HAMAP-Rule:MF_01201}.
CC   -!- SIMILARITY: Belongs to the alanine racemase family. {ECO:0000256|HAMAP-
CC       Rule:MF_01201}.
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DR   EMBL; CP000100; ABB58231.1; -; Genomic_DNA.
DR   RefSeq; WP_011378364.1; NZ_CP130602.1.
DR   AlphaFoldDB; Q31L38; -.
DR   SMR; Q31L38; -.
DR   STRING; 1140.Synpcc7942_2201; -.
DR   PaxDb; 1140-Synpcc7942_2201; -.
DR   GeneID; 76400933; -.
DR   KEGG; syf:Synpcc7942_2201; -.
DR   eggNOG; COG0787; Bacteria.
DR   HOGENOM; CLU_028393_2_2_3; -.
DR   OrthoDB; 9813814at2; -.
DR   BioCyc; SYNEL:SYNPCC7942_2201-MONOMER; -.
DR   UniPathway; UPA00042; UER00497.
DR   Proteomes; UP000889800; 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   CDD; cd00430; PLPDE_III_AR; 1.
DR   Gene3D; 3.20.20.10; Alanine racemase; 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   NCBIfam; TIGR00492; alr; 1.
DR   PANTHER; PTHR30511; ALANINE RACEMASE; 1.
DR   PANTHER; PTHR30511:SF0; ALANINE RACEMASE, CATABOLIC-RELATED; 1.
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; Alanine racemase C-terminal domain-like; 1.
DR   SUPFAM; SSF51419; PLP-binding barrel; 1.
DR   PROSITE; PS00395; ALANINE_RACEMASE; 1.
PE   3: Inferred from homology;
KW   Isomerase {ECO:0000256|ARBA:ARBA00023235, ECO:0000256|HAMAP-Rule:MF_01201};
KW   Pyridoxal phosphate {ECO:0000256|ARBA:ARBA00022898, ECO:0000256|HAMAP-
KW   Rule:MF_01201}; Reference proteome {ECO:0000313|Proteomes:UP000889800}.
FT   DOMAIN          265..393
FT                   /note="Alanine racemase C-terminal"
FT                   /evidence="ECO:0000259|SMART:SM01005"
FT   ACT_SITE        58
FT                   /note="Proton acceptor; specific for D-alanine"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01201"
FT   ACT_SITE        286
FT                   /note="Proton acceptor; specific for L-alanine"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01201"
FT   BINDING         157
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01201,
FT                   ECO:0000256|PIRSR:PIRSR600821-52"
FT   BINDING         334
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01201,
FT                   ECO:0000256|PIRSR:PIRSR600821-52"
FT   MOD_RES         58
FT                   /note="N6-(pyridoxal phosphate)lysine"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01201,
FT                   ECO:0000256|PIRSR:PIRSR600821-50"
SQ   SEQUENCE   406 AA;  43771 MW;  B78C62AF3960B429 CRC64;
     MTVKPIDPQP TPRWPARRLE QLSYQRAWVE VDQGAIAANT RQIRQFLAPS CELMAVVKAD
     AYGHGAVAIA STVLGAGATA LGVATIPEGV RLREAGITAP ILLLGSIHSP DEVQAIAHWQ
     IQPSLSTPKQ ALICAEVLDR LGQSLPVHLK LDTGMSRLGA PWQTAVEFLQ LVHGLPSLQL
     ASLYSHFATA DSPDRAPLQQ QHAAFEQAIA QIQAEGLPVP KLHIANSAAT LLDSSLHYDQ
     VRVGLALYGL YPAPHLGDRL SLYPALSVKA RVTHVTTLPA GQGVSYGHRY VTQRETPIAV
     VGIGYADGVP RALSNQMEVL YRGQRLPQIG AITMDQMMID ISAMPQLAPG DVVTLLGRSG
     SEQITADDWA DRANTISWEI LCGFKDRLPR FAVAADWSSN QVTVRS
//