ID A0A0F3LED0_9CAUL Unreviewed; 409 AA.
AC A0A0F3LED0;
DT 24-JUN-2015, integrated into UniProtKB/TrEMBL.
DT 24-JUN-2015, sequence version 1.
DT 24-JAN-2024, entry version 33.
DE RecName: Full=Tryptophan synthase beta chain {ECO:0000256|HAMAP-Rule:MF_00133};
DE EC=4.2.1.20 {ECO:0000256|HAMAP-Rule:MF_00133};
GN Name=trpB {ECO:0000256|HAMAP-Rule:MF_00133};
GN ORFNames=VH88_06970 {ECO:0000313|EMBL:KJV41930.1};
OS Brevundimonas sp. KM4.
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Caulobacterales;
OC Caulobacteraceae; Brevundimonas.
OX NCBI_TaxID=1628191 {ECO:0000313|EMBL:KJV41930.1, ECO:0000313|Proteomes:UP000033583};
RN [1] {ECO:0000313|EMBL:KJV41930.1, ECO:0000313|Proteomes:UP000033583}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=KM4 {ECO:0000313|EMBL:KJV41930.1,
RC ECO:0000313|Proteomes:UP000033583};
RA Sulaiman J., Priya K., Chan K.-G.;
RT "Draft genome sequence of Brevundimonas sp. KM4.";
RL Submitted (MAR-2015) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: The beta subunit is responsible for the synthesis of L-
CC tryptophan from indole and L-serine. {ECO:0000256|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:0000256|ARBA:ARBA00000003, ECO:0000256|HAMAP-
CC Rule:MF_00133};
CC -!- COFACTOR:
CC Name=pyridoxal 5'-phosphate; Xref=ChEBI:CHEBI:597326;
CC Evidence={ECO:0000256|ARBA:ARBA00001933,
CC ECO:0000256|HAMAP-Rule:MF_00133};
CC -!- PATHWAY: Amino-acid biosynthesis; L-tryptophan biosynthesis; L-
CC tryptophan from chorismate: step 5/5. {ECO:0000256|ARBA:ARBA00004733,
CC ECO:0000256|HAMAP-Rule:MF_00133}.
CC -!- SUBUNIT: Tetramer of two alpha and two beta chains.
CC {ECO:0000256|ARBA:ARBA00011270, ECO:0000256|HAMAP-Rule:MF_00133}.
CC -!- SIMILARITY: Belongs to the TrpB family. {ECO:0000256|ARBA:ARBA00009982,
CC ECO:0000256|HAMAP-Rule:MF_00133}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:KJV41930.1}.
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DR EMBL; JZRG01000010; KJV41930.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A0F3LED0; -.
DR PATRIC; fig|1628191.3.peg.60; -.
DR UniPathway; UPA00035; UER00044.
DR Proteomes; UP000033583; Unassembled WGS sequence.
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; IPR006653; Trp_synth_b_CS.
DR InterPro; IPR006654; Trp_synth_beta.
DR InterPro; IPR023026; Trp_synth_beta/beta-like.
DR InterPro; IPR001926; TrpB-like_PALP.
DR InterPro; IPR036052; TrpB-like_PALP_sf.
DR NCBIfam; TIGR00263; trpB; 1.
DR PANTHER; PTHR48077:SF3; TRYPTOPHAN SYNTHASE; 1.
DR PANTHER; PTHR48077; TRYPTOPHAN SYNTHASE-RELATED; 1.
DR Pfam; PF00291; PALP; 1.
DR PIRSF; PIRSF001413; Trp_syn_beta; 1.
DR SUPFAM; SSF53686; Tryptophan synthase beta subunit-like PLP-dependent enzymes; 1.
DR PROSITE; PS00168; TRP_SYNTHASE_BETA; 1.
PE 3: Inferred from homology;
KW Amino-acid biosynthesis {ECO:0000256|ARBA:ARBA00022605, ECO:0000256|HAMAP-
KW Rule:MF_00133};
KW Aromatic amino acid biosynthesis {ECO:0000256|ARBA:ARBA00023141,
KW ECO:0000256|HAMAP-Rule:MF_00133};
KW Lyase {ECO:0000256|ARBA:ARBA00023239, ECO:0000256|HAMAP-Rule:MF_00133};
KW Pyridoxal phosphate {ECO:0000256|ARBA:ARBA00022898, ECO:0000256|HAMAP-
KW Rule:MF_00133};
KW Tryptophan biosynthesis {ECO:0000256|ARBA:ARBA00022822, ECO:0000256|HAMAP-
KW Rule:MF_00133}.
FT DOMAIN 69..392
FT /note="Tryptophan synthase beta chain-like PALP"
FT /evidence="ECO:0000259|Pfam:PF00291"
FT MOD_RES 102
FT /note="N6-(pyridoxal phosphate)lysine"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00133"
SQ SEQUENCE 409 AA; 43908 MW; 9CFE14F9FF330B77 CRC64;
MQAADSTQPL SNAYAWPDAQ GRFGPYGGQF VAETLMPLIH ELDAAYKAAK ADPSFQTELD
GYLEHYVGRE SPLYFAERLT EHFGGANIWL KREDLNHTGA HKINNCMGQI LLARRMGKTR
IIAETGAGQH GVASATVSAR FGLPCTVYMG AVDVERQQPN VFRMRLLGSE VFSVTAGAAT
LKDAMNEAMR DWVTNVSDTY YIIGTAAGPH PYPAMVRDFQ SVIGKEIKSQ SMARMGKLPE
AVVACIGGGS NAIGAFHPFI EDEGVRLIGV EAAGHGLDTP DHAASLKGGR SGVLHGNRTY
LLQDEDGNIV EGHSISAGLD YPGIGPEHAW LHDIGRAEYR SATDNEALEA FQLCSKLEGI
IPALEPAHAL ARTGEVAREV GKGGDVVLLM SGRGDKDIFQ VAKHLGVNL
//
