ID E1VB61_HALED Unreviewed; 404 AA.
AC E1VB61;
DT 30-NOV-2010, integrated into UniProtKB/TrEMBL.
DT 30-NOV-2010, sequence version 1.
DT 27-MAR-2024, entry version 75.
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 Synonyms=trpB2 {ECO:0000313|EMBL:CBV42122.1};
GN OrderedLocusNames=HELO_2238 {ECO:0000313|EMBL:CBV42122.1};
OS Halomonas elongata (strain ATCC 33173 / DSM 2581 / NBRC 15536 / NCIMB 2198
OS / 1H9).
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Oceanospirillales;
OC Halomonadaceae; Halomonas.
OX NCBI_TaxID=768066 {ECO:0000313|EMBL:CBV42122.1, ECO:0000313|Proteomes:UP000008707};
RN [1] {ECO:0000313|Proteomes:UP000008707}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 33173 / DSM 2581 / NBRC 15536 / NCIMB 2198 / 1H9
RC {ECO:0000313|Proteomes:UP000008707};
RX PubMed=20849449; DOI=10.1111/j.1462-2920.2010.02336.x;
RA Schwibbert K., Marin-Sanguino A., Bagyan I., Heidrich G., Lentzen G.,
RA Seitz H., Rampp M., Schuster S.C., Klenk H.P., Pfeiffer F., Oesterhelt D.,
RA Kunte H.J.;
RT "A blueprint of ectoine metabolism from the genome of the industrial
RT producer Halomonas elongata DSM 2581(T).";
RL Environ. Microbiol. 13:1973-1994(2011).
CC -!- FUNCTION: The beta subunit is responsible for the synthesis of L-
CC tryptophan from indole and L-serine. {ECO:0000256|ARBA:ARBA00002786,
CC 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}.
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DR EMBL; FN869568; CBV42122.1; -; Genomic_DNA.
DR AlphaFoldDB; E1VB61; -.
DR STRING; 768066.HELO_2238; -.
DR KEGG; hel:HELO_2238; -.
DR eggNOG; COG0133; Bacteria.
DR HOGENOM; CLU_016734_3_1_6; -.
DR OrthoDB; 9766131at2; -.
DR UniPathway; UPA00035; UER00044.
DR Proteomes; UP000008707; 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; 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 62..387
FT /note="Tryptophan synthase beta chain-like PALP"
FT /evidence="ECO:0000259|Pfam:PF00291"
FT MOD_RES 96
FT /note="N6-(pyridoxal phosphate)lysine"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00133"
SQ SEQUENCE 404 AA; 43871 MW; 64993A996A76CD26 CRC64;
MSKFSDLTRL PDERGHFGPY GGRFVSETLS FALEDLEKTY LRLRDDPDFQ AEFDHDLSHY
VGRPSPLYHA ERWSKQLGGA QIWLKREDLN HTGAHKVNNT IGQALLAKKG GKPRVIAETG
AGQHGVATAT VAARLGLSCD IYMGAEDVER QKLNVYRMHL LGAKVVPVES GTRTLKDAMN
EALRDWVTNV DDTFYIIGTV AGPHPYPMLV RDFNAVVGRE ARRQSLEEFG RLPDALIACV
GGGSNAMGLF YPFAEDDDVA MIGVEAGGDG LATGRHAAPL ASGAPRGVLH GNRTYLMSDE
GGQVSDTHSV SAGLDYPGVG PEHAFWKDVG RVEYVAADDT AVLEAFRELT HVEGIMPALE
SAHALAHAKR LAPTMRPDQN IVVNLSGRGD KDIMTVAKLD GIEF
//
