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Database: UniProt/TrEMBL
Entry: Q21MA3_SACD2
LinkDB: Q21MA3_SACD2
Original site: Q21MA3_SACD2 
ID   Q21MA3_SACD2            Unreviewed;       409 AA.
AC   Q21MA3;
DT   18-APR-2006, integrated into UniProtKB/TrEMBL.
DT   18-APR-2006, sequence version 1.
DT   24-JAN-2024, entry version 116.
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=Sde_0914 {ECO:0000313|EMBL:ABD80176.1};
OS   Saccharophagus degradans (strain 2-40 / ATCC 43961 / DSM 17024).
OC   Bacteria; Pseudomonadota; Gammaproteobacteria; Cellvibrionales;
OC   Cellvibrionaceae; Saccharophagus.
OX   NCBI_TaxID=203122 {ECO:0000313|EMBL:ABD80176.1, ECO:0000313|Proteomes:UP000001947};
RN   [1] {ECO:0000313|EMBL:ABD80176.1, ECO:0000313|Proteomes:UP000001947}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=2-40 / ATCC 43961 / DSM 17024
RC   {ECO:0000313|Proteomes:UP000001947};
RX   PubMed=18516288; DOI=10.1371/journal.pgen.1000087;
RA   Weiner R.M., Taylor L.E.II., Henrissat B., Hauser L., Land M.,
RA   Coutinho P.M., Rancurel C., Saunders E.H., Longmire A.G., Zhang H.,
RA   Bayer E.A., Gilbert H.J., Larimer F., Zhulin I.B., Ekborg N.A., Lamed R.,
RA   Richardson P.M., Borovok I., Hutcheson S.;
RT   "Complete genome sequence of the complex carbohydrate-degrading marine
RT   bacterium, Saccharophagus degradans strain 2-40 T.";
RL   PLoS Genet. 4:E1000087-E1000087(2008).
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,
CC         ECO:0000256|HAMAP-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; CP000282; ABD80176.1; -; Genomic_DNA.
DR   RefSeq; WP_011467397.1; NC_007912.1.
DR   AlphaFoldDB; Q21MA3; -.
DR   STRING; 203122.Sde_0914; -.
DR   KEGG; sde:Sde_0914; -.
DR   eggNOG; COG0787; Bacteria.
DR   HOGENOM; CLU_028393_1_1_6; -.
DR   OMA; HMTHFSD; -.
DR   UniPathway; UPA00042; UER00497.
DR   Proteomes; UP000001947; Chromosome.
DR   GO; GO:0016020; C:membrane; IEA:UniProtKB-KW.
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   Membrane {ECO:0000256|SAM:Phobius};
KW   Pyridoxal phosphate {ECO:0000256|ARBA:ARBA00022898, ECO:0000256|HAMAP-
KW   Rule:MF_01201}; Reference proteome {ECO:0000313|Proteomes:UP000001947};
KW   Transmembrane {ECO:0000256|SAM:Phobius};
KW   Transmembrane helix {ECO:0000256|SAM:Phobius}.
FT   TRANSMEM        21..43
FT                   /note="Helical"
FT                   /evidence="ECO:0000256|SAM:Phobius"
FT   DOMAIN          277..404
FT                   /note="Alanine racemase C-terminal"
FT                   /evidence="ECO:0000259|SMART:SM01005"
FT   ACT_SITE        76
FT                   /note="Proton acceptor; specific for D-alanine"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01201"
FT   ACT_SITE        298
FT                   /note="Proton acceptor; specific for L-alanine"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01201"
FT   BINDING         173
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01201,
FT                   ECO:0000256|PIRSR:PIRSR600821-52"
FT   BINDING         346
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01201,
FT                   ECO:0000256|PIRSR:PIRSR600821-52"
FT   MOD_RES         76
FT                   /note="N6-(pyridoxal phosphate)lysine"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01201,
FT                   ECO:0000256|PIRSR:PIRSR600821-50"
SQ   SEQUENCE   409 AA;  43715 MW;  F05152A55B42D6E6 CRC64;
     MTVCLLLFAL KRRWRWFGFR LYANALVLFL ITPVDIAAPM TAFSGKLTIN LDAIAANWRL
     IQSRLAAGAR AGAVVKADAY GLGVQEVAPA LYRAGCRDFF VANLAEALLV RSLLAGDAQV
     IVLSGCAPRE ESEFVRNGIV PVITSATMAE RWLGVKGASK CGAVLKVNSG MGRLGLEPNE
     FESLLMHPNF ANAGFFMLMS HLACADQFDH PLNAAQLQRF ERMRQAFLKK VPAATASLAN
     SSGIFISPSF HYDVARPGVA LYGGNPLQRR QNPMRKVVDL RLPVLQVRHL ASGEAVGYGA
     SFITQRPSVL LTLAGGYADG LFRSAAAGGV VYLGEKPLPI VGRVSMDSIV VDATDVPQAA
     MPAEGNMLEL LGDNVGVDDL AAAAGTIGYE ILTSLGGRYR REYIGGAND
//
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