OTSA_MYCSS
ID OTSA_MYCSS Reviewed; 489 AA.
AC Q1B321;
DT 02-SEP-2008, integrated into UniProtKB/Swiss-Prot.
DT 11-JUL-2006, sequence version 1.
DT 03-AUG-2022, entry version 81.
DE RecName: Full=Trehalose-6-phosphate synthase {ECO:0000250|UniProtKB:P9WN11};
DE Short=TPS {ECO:0000250|UniProtKB:P9WN11};
DE EC=2.4.1.15 {ECO:0000250|UniProtKB:P9WN11};
DE EC=2.4.1.347 {ECO:0000250|UniProtKB:P9WN11};
DE AltName: Full=Alpha,alpha-trehalose-phosphate synthase [UDP-forming] {ECO:0000250|UniProtKB:P9WN11};
DE AltName: Full=Osmoregulatory trehalose synthesis protein A {ECO:0000250|UniProtKB:P31677};
DE Short=OtsA {ECO:0000250|UniProtKB:P31677};
GN Name=otsA {ECO:0000250|UniProtKB:P9WN11}; OrderedLocusNames=Mmcs_4609;
OS Mycobacterium sp. (strain MCS).
OC Bacteria; Actinobacteria; Corynebacteriales; Mycobacteriaceae;
OC Mycobacterium; unclassified Mycobacterium.
OX NCBI_TaxID=164756;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=MCS;
RG US DOE Joint Genome Institute;
RA Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C.,
RA Glavina del Rio T., Hammon N., Israni S., Dalin E., Tice H., Pitluck S.,
RA Martinez M., Schmutz J., Larimer F., Land M., Hauser L., Kyrpides N.,
RA Kim E., Miller C.D., Hughes J.E., Anderson A.J., Sims R.C., Richardson P.;
RT "Complete sequence of chromosome of Mycobacterium sp. MCS.";
RL Submitted (JUN-2006) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Probably involved in the osmoprotection via the biosynthesis
CC of trehalose and in the production of glycogen and alpha-glucan via the
CC TreS-Pep2 branch involved in the biosynthesis of maltose-1-phosphate
CC (M1P). Catalyzes the transfer of glucose from UDP-glucose (UDP-Glc) to
CC D-glucose 6-phosphate (Glc-6-P) to form trehalose-6-phosphate. Probably
CC also able to use ADP-Glc, CDP-Glc, GDP-Glc and TDP-Glc as glucosyl
CC donors. {ECO:0000250|UniProtKB:P9WN11}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=ADP-alpha-D-glucose + D-glucose 6-phosphate = ADP +
CC alpha,alpha-trehalose 6-phosphate + H(+); Xref=Rhea:RHEA:53880,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:57498, ChEBI:CHEBI:58429,
CC ChEBI:CHEBI:61548, ChEBI:CHEBI:456216; EC=2.4.1.347;
CC Evidence={ECO:0000250|UniProtKB:P9WN11};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=CDP-alpha-D-glucose + D-glucose 6-phosphate = alpha,alpha-
CC trehalose 6-phosphate + CDP + H(+); Xref=Rhea:RHEA:53884,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:58069, ChEBI:CHEBI:58429,
CC ChEBI:CHEBI:61548, ChEBI:CHEBI:137927;
CC Evidence={ECO:0000250|UniProtKB:P9WN11};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=D-glucose 6-phosphate + GDP-alpha-D-glucose = alpha,alpha-
CC trehalose 6-phosphate + GDP + H(+); Xref=Rhea:RHEA:14605,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:58189, ChEBI:CHEBI:58429,
CC ChEBI:CHEBI:61548, ChEBI:CHEBI:62230;
CC Evidence={ECO:0000250|UniProtKB:P9WN11};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=D-glucose 6-phosphate + TDP-alpha-D-glucose = alpha,alpha-
CC trehalose 6-phosphate + H(+) + TDP; Xref=Rhea:RHEA:53888,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:58429, ChEBI:CHEBI:61417,
CC ChEBI:CHEBI:61548, ChEBI:CHEBI:137931;
CC Evidence={ECO:0000250|UniProtKB:P9WN11};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=D-glucose 6-phosphate + UDP-alpha-D-glucose = alpha,alpha-
CC trehalose 6-phosphate + H(+) + UDP; Xref=Rhea:RHEA:18889,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:58223, ChEBI:CHEBI:58429,
CC ChEBI:CHEBI:58885, ChEBI:CHEBI:61548; EC=2.4.1.15;
CC Evidence={ECO:0000250|UniProtKB:P9WN11};
CC -!- PATHWAY: Glycan biosynthesis; trehalose biosynthesis.
CC {ECO:0000250|UniProtKB:P9WN11}.
CC -!- SUBUNIT: Homotetramer. {ECO:0000250|UniProtKB:P9WN11}.
CC -!- SIMILARITY: Belongs to the glycosyltransferase 20 family.
CC {ECO:0000250|UniProtKB:P9WN11}.
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DR EMBL; CP000384; ABG10713.1; -; Genomic_DNA.
DR AlphaFoldDB; Q1B321; -.
DR SMR; Q1B321; -.
DR CAZy; GT20; Glycosyltransferase Family 20.
DR KEGG; mmc:Mmcs_4609; -.
DR HOGENOM; CLU_002351_7_1_11; -.
DR OMA; YYGFSNR; -.
DR BioCyc; MSP164756:G1G6O-4711-MON; -.
DR UniPathway; UPA00299; -.
DR GO; GO:0047260; F:alpha,alpha-trehalose-phosphate synthase (GDP-forming) activity; IEA:RHEA.
DR GO; GO:0003825; F:alpha,alpha-trehalose-phosphate synthase (UDP-forming) activity; IEA:UniProtKB-EC.
DR GO; GO:0005992; P:trehalose biosynthetic process; IEA:UniProtKB-UniPathway.
DR CDD; cd03788; GT20_TPS; 1.
DR InterPro; IPR001830; Glyco_trans_20.
DR PANTHER; PTHR10788; PTHR10788; 1.
DR Pfam; PF00982; Glyco_transf_20; 1.
PE 3: Inferred from homology;
KW Glycosyltransferase; Transferase.
FT CHAIN 1..489
FT /note="Trehalose-6-phosphate synthase"
FT /id="PRO_0000348913"
FT BINDING 22
FT /ligand="D-glucose 6-phosphate"
FT /ligand_id="ChEBI:CHEBI:61548"
FT /evidence="ECO:0000250|UniProtKB:P31677"
FT BINDING 42..43
FT /ligand="UDP-alpha-D-glucose"
FT /ligand_id="ChEBI:CHEBI:58885"
FT /evidence="ECO:0000250|UniProtKB:P31677"
FT BINDING 94
FT /ligand="D-glucose 6-phosphate"
FT /ligand_id="ChEBI:CHEBI:61548"
FT /evidence="ECO:0000250|UniProtKB:P31677"
FT BINDING 148
FT /ligand="D-glucose 6-phosphate"
FT /ligand_id="ChEBI:CHEBI:61548"
FT /evidence="ECO:0000250|UniProtKB:P31677"
FT BINDING 290
FT /ligand="UDP-alpha-D-glucose"
FT /ligand_id="ChEBI:CHEBI:58885"
FT /evidence="ECO:0000250|UniProtKB:P31677"
FT BINDING 295
FT /ligand="UDP-alpha-D-glucose"
FT /ligand_id="ChEBI:CHEBI:58885"
FT /evidence="ECO:0000250|UniProtKB:P31677"
FT BINDING 328
FT /ligand="D-glucose 6-phosphate"
FT /ligand_id="ChEBI:CHEBI:61548"
FT /evidence="ECO:0000250|UniProtKB:P31677"
FT BINDING 393..397
FT /ligand="UDP-alpha-D-glucose"
FT /ligand_id="ChEBI:CHEBI:58885"
FT /evidence="ECO:0000250|UniProtKB:P31677"
FT SITE 103
FT /note="Involved in alpha anomer selectivity"
FT /evidence="ECO:0000250|UniProtKB:P31677"
FT SITE 173
FT /note="Involved in alpha anomer selectivity"
FT /evidence="ECO:0000250|UniProtKB:P31677"
SQ SEQUENCE 489 AA; 54726 MW; D8C558B2C21386D8 CRC64;
MASEGDPGVG SGDSDFVVVA NRLPIDMERL PDGSTSFKRS PGGLVTALEP LLRKRHGAWI
GWAGIPDSAE DPIEDDGLQL YPVSLSADDV ADYYEGFSNA TLWPLYHDLI VKPIYHRKWW
DRYVEVNRRF AEATARAAAE GATVWVQDYQ LQLVPKMLRM LRPDLTIGFF LHIPFPPVEL
FMQMPWRTEI IEGLLGADLV GFHLPGGAQN FLYLARRLTG ANTSRATVGV RSRFGEVQVG
FRTVKVGAFP ISIDSDELDG KARNRAVRQR AREIRNELGN PRKILLGVDR LDYTKGINVR
LEALSELLED GRVDSHDTVF VQLATPSRER VQSYIEMRED IERQVGHING EFGDVGHPIV
HYLHRPIPRD ELIAFFVAAD VMLVTPLRDG MNLVAKEYVA CRSDLGGALV LSEFTGAAAE
LRQAYLANPH HLEGVKDAIE AALNQDPEEG RRRMRALRRQ VLAHDVDRWA RAFLDALADT
RAGAKPVRD
