ID A0A0Q4N344_9GAMM Unreviewed; 428 AA.
AC A0A0Q4N344;
DT 20-JAN-2016, integrated into UniProtKB/TrEMBL.
DT 20-JAN-2016, sequence version 1.
DT 27-MAR-2024, entry version 26.
DE RecName: Full=Threonine synthase {ECO:0000256|ARBA:ARBA00018679};
DE EC=4.2.3.1 {ECO:0000256|ARBA:ARBA00013028};
GN ORFNames=ASF13_04525 {ECO:0000313|EMBL:KQN58056.1};
OS Erwinia sp. Leaf53.
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales;
OC Erwiniaceae; Erwinia.
OX NCBI_TaxID=1736225 {ECO:0000313|EMBL:KQN58056.1, ECO:0000313|Proteomes:UP000050856};
RN [1] {ECO:0000313|EMBL:KQN58056.1, ECO:0000313|Proteomes:UP000050856}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Leaf53 {ECO:0000313|EMBL:KQN58056.1,
RC ECO:0000313|Proteomes:UP000050856};
RA Gilbert D.G.;
RL Submitted (OCT-2015) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EMBL:KQN58056.1, ECO:0000313|Proteomes:UP000050856}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Leaf53 {ECO:0000313|EMBL:KQN58056.1,
RC ECO:0000313|Proteomes:UP000050856};
RA Schulze-Lefert P.;
RT "Functional overlap of the Arabidopsis leaf and root microbiotas.";
RL Submitted (NOV-2015) to the EMBL/GenBank/DDBJ databases.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=H2O + O-phospho-L-homoserine = L-threonine + phosphate;
CC Xref=Rhea:RHEA:10840, ChEBI:CHEBI:15377, ChEBI:CHEBI:43474,
CC ChEBI:CHEBI:57590, ChEBI:CHEBI:57926; EC=4.2.3.1;
CC Evidence={ECO:0000256|ARBA:ARBA00000051};
CC -!- COFACTOR:
CC Name=pyridoxal 5'-phosphate; Xref=ChEBI:CHEBI:597326;
CC Evidence={ECO:0000256|ARBA:ARBA00001933,
CC ECO:0000256|PIRSR:PIRSR604450-51};
CC -!- PATHWAY: Amino-acid biosynthesis; L-threonine biosynthesis; L-threonine
CC from L-aspartate: step 5/5. {ECO:0000256|ARBA:ARBA00004979}.
CC -!- SIMILARITY: Belongs to the threonine synthase family.
CC {ECO:0000256|ARBA:ARBA00005517}.
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:KQN58056.1}.
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DR EMBL; LMLK01000012; KQN58056.1; -; Genomic_DNA.
DR RefSeq; WP_056235860.1; NZ_LMLK01000012.1.
DR AlphaFoldDB; A0A0Q4N344; -.
DR STRING; 1736225.ASF13_04525; -.
DR UniPathway; UPA00050; UER00065.
DR Proteomes; UP000050856; Unassembled WGS sequence.
DR GO; GO:0030170; F:pyridoxal phosphate binding; IEA:InterPro.
DR GO; GO:0004795; F:threonine synthase activity; IEA:UniProtKB-EC.
DR GO; GO:0009088; P:threonine biosynthetic process; IEA:UniProtKB-UniPathway.
DR Gene3D; 3.40.50.1100; -; 2.
DR Gene3D; 3.90.1380.10; Threonine synthase, N-terminal domain; 1.
DR InterPro; IPR000634; Ser/Thr_deHydtase_PyrdxlP-BS.
DR InterPro; IPR029144; Thr_synth_N.
DR InterPro; IPR037158; Thr_synth_N_sf.
DR InterPro; IPR004450; Thr_synthase-like.
DR InterPro; IPR001926; TrpB-like_PALP.
DR InterPro; IPR036052; TrpB-like_PALP_sf.
DR NCBIfam; TIGR00260; thrC; 1.
DR PANTHER; PTHR42690; THREONINE SYNTHASE FAMILY MEMBER; 1.
DR PANTHER; PTHR42690:SF1; THREONINE SYNTHASE-LIKE 2; 1.
DR Pfam; PF00291; PALP; 1.
DR Pfam; PF14821; Thr_synth_N; 1.
DR SUPFAM; SSF53686; Tryptophan synthase beta subunit-like PLP-dependent enzymes; 1.
DR PROSITE; PS00165; DEHYDRATASE_SER_THR; 1.
PE 3: Inferred from homology;
KW Amino-acid biosynthesis {ECO:0000256|ARBA:ARBA00022605};
KW Lyase {ECO:0000256|ARBA:ARBA00023239};
KW Pyridoxal phosphate {ECO:0000256|ARBA:ARBA00022898,
KW ECO:0000256|PIRSR:PIRSR604450-51};
KW Reference proteome {ECO:0000313|Proteomes:UP000050856};
KW Threonine biosynthesis {ECO:0000256|ARBA:ARBA00022697}.
FT DOMAIN 8..80
FT /note="Threonine synthase N-terminal"
FT /evidence="ECO:0000259|Pfam:PF14821"
FT DOMAIN 96..370
FT /note="Tryptophan synthase beta chain-like PALP"
FT /evidence="ECO:0000259|Pfam:PF00291"
FT MOD_RES 107
FT /note="N6-(pyridoxal phosphate)lysine"
FT /evidence="ECO:0000256|PIRSR:PIRSR604450-51"
SQ SEQUENCE 428 AA; 47168 MW; A6BFEAD2070973E3 CRC64;
MKLYNLKDHN EQVSFAQAVK QGLGKQQGLF FPLELPEFEL TDIDALLEMD FVTRSSKILS
AFIGDEIAAH QLNERVKTAF TFPAPVVSVT DDVAALELFH GPTLAFKDFG GRFMAQMLAY
VSGADEQITI LTATSGDTGA AVAHAFYGME NVRVVILYPQ GKISPLQEKL FCTLGGNIET
IAIDGDFDAC QALVKQSFDD EELKKAIGLN SANSINISRL LAQICYYFEA VAQLPQEKRN
QLVISVPSGN FGDLTAGLLA KSLGLPVKRF IAATNANDTV PRFLADGQWT PNQTVATLSN
AMDVSQPNNW PRVEEIFRRK TWRLQDLGFG AVSDETTKAT MRELADLGYI SEPHAAIAYR
MLRDQLQEGE FGLFLGTAHP AKFIESVEAI LERKLPVPEA LAERADLDLL SHNMKADFAE
LRAFLLKK
//
