ID   TRPB_ELUMP              Reviewed;         412 AA.
AC   B2KCI5;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   10-JUN-2008, sequence version 1.
DT   25-MAY-2022, entry version 77.
DE   RecName: Full=Tryptophan synthase beta chain {ECO:0000255|HAMAP-Rule:MF_00133};
DE            EC=4.2.1.20 {ECO:0000255|HAMAP-Rule:MF_00133};
GN   Name=trpB {ECO:0000255|HAMAP-Rule:MF_00133}; OrderedLocusNames=Emin_0551;
OS   Elusimicrobium minutum (strain Pei191).
OC   Bacteria; Elusimicrobia; Elusimicrobia; Elusimicrobiales;
OC   Elusimicrobiaceae; Elusimicrobium.
OX   NCBI_TaxID=445932;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Pei191;
RX   PubMed=19270133; DOI=10.1128/aem.02698-08;
RA   Herlemann D.P.R., Geissinger O., Ikeda-Ohtsubo W., Kunin V., Sun H.,
RA   Lapidus A., Hugenholtz P., Brune A.;
RT   "Genomic analysis of 'Elusimicrobium minutum,' the first cultivated
RT   representative of the phylum 'Elusimicrobia' (formerly termite group 1).";
RL   Appl. Environ. Microbiol. 75:2841-2849(2009).
CC   -!- FUNCTION: The beta subunit is responsible for the synthesis of L-
CC       tryptophan from indole and L-serine. {ECO:0000255|HAMAP-Rule:MF_00133}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=(1S,2R)-1-C-(indol-3-yl)glycerol 3-phosphate + L-serine = D-
CC         glyceraldehyde 3-phosphate + H2O + L-tryptophan;
CC         Xref=Rhea:RHEA:10532, ChEBI:CHEBI:15377, ChEBI:CHEBI:33384,
CC         ChEBI:CHEBI:57912, ChEBI:CHEBI:58866, ChEBI:CHEBI:59776; EC=4.2.1.20;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00133};
CC   -!- COFACTOR:
CC       Name=pyridoxal 5'-phosphate; Xref=ChEBI:CHEBI:597326;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00133};
CC   -!- PATHWAY: Amino-acid biosynthesis; L-tryptophan biosynthesis; L-
CC       tryptophan from chorismate: step 5/5. {ECO:0000255|HAMAP-
CC       Rule:MF_00133}.
CC   -!- SUBUNIT: Tetramer of two alpha and two beta chains. {ECO:0000255|HAMAP-
CC       Rule:MF_00133}.
CC   -!- SIMILARITY: Belongs to the TrpB family. {ECO:0000255|HAMAP-
CC       Rule:MF_00133}.
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DR   EMBL; CP001055; ACC98106.1; -; Genomic_DNA.
DR   AlphaFoldDB; B2KCI5; -.
DR   SMR; B2KCI5; -.
DR   STRING; 445932.Emin_0551; -.
DR   EnsemblBacteria; ACC98106; ACC98106; Emin_0551.
DR   KEGG; emi:Emin_0551; -.
DR   HOGENOM; CLU_016734_3_1_0; -.
DR   OMA; GPEHAMF; -.
DR   UniPathway; UPA00035; UER00044.
DR   Proteomes; UP000001029; Chromosome.
DR   GO; GO:0004834; F:tryptophan synthase activity; IEA:UniProtKB-UniRule.
DR   CDD; cd06446; Trp-synth_B; 1.
DR   Gene3D; 3.40.50.1100; -; 2.
DR   HAMAP; MF_00133; Trp_synth_beta; 1.
DR   InterPro; IPR001926; PLP-dep.
DR   InterPro; IPR006653; Trp_synth_b_CS.
DR   InterPro; IPR006654; Trp_synth_beta.
DR   InterPro; IPR023026; Trp_synth_beta/beta-like.
DR   InterPro; IPR036052; Trypto_synt_PLP_dependent.
DR   Pfam; PF00291; PALP; 1.
DR   PIRSF; PIRSF001413; Trp_syn_beta; 1.
DR   SUPFAM; SSF53686; SSF53686; 1.
DR   TIGRFAMs; TIGR00263; trpB; 1.
DR   PROSITE; PS00168; TRP_SYNTHASE_BETA; 1.
PE   3: Inferred from homology;
KW   Amino-acid biosynthesis; Aromatic amino acid biosynthesis; Lyase;
KW   Pyridoxal phosphate; Reference proteome; Tryptophan biosynthesis.
FT   CHAIN           1..412
FT                   /note="Tryptophan synthase beta chain"
FT                   /id="PRO_1000117758"
FT   MOD_RES         101
FT                   /note="N6-(pyridoxal phosphate)lysine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00133"
SQ   SEQUENCE   412 AA;  44516 MW;  41D44A1221B45FDF CRC64;
     MTMLNPKKQI SKPNTLIPNE HGFYGIYGGV FVPKELIVPL AEIADCFNNT AFTKEFQDEL
     FYYYKNYVGR PSPLYYAANI SCGGAKIYLK REDLNHTGAH KINHCIGEVL LAKKMGKKRV
     IAETGAGQHG IAIATAAALL GIECVIYMGE QDVKKEYPNV LKIKTLGAKV VCVGSGAKGL
     KEAVDAAFDD YLKDPETQMY AIGSVVGPHP FPLMVASFQS IVGKEAREQF LEQEGRLPDN
     VVACVGGGSN SMGIFSGFFA DKTVKLTGVE PAGKGLETGL HAAPLAKGRV GVVHGFKCYF
     MQDDKGNPMG THSVASGLDY LGVGPQHCYL KDSGRVTYRS ACDDEAVDAF FMLSRKEGII
     PALESAHAVA YALKLSKELG KDKSILVNLS GRGEKDLDYV LSLYGKKYGV DI