ID H0IZC0_9GAMM Unreviewed; 663 AA.
AC H0IZC0;
DT 22-FEB-2012, integrated into UniProtKB/TrEMBL.
DT 22-FEB-2012, sequence version 1.
DT 27-MAR-2024, entry version 61.
DE RecName: Full=Transketolase {ECO:0000256|ARBA:ARBA00013152, ECO:0000256|RuleBase:RU004996};
DE EC=2.2.1.1 {ECO:0000256|ARBA:ARBA00013152, ECO:0000256|RuleBase:RU004996};
GN ORFNames=MOY_03568 {ECO:0000313|EMBL:EHK61967.1};
OS Halomonas sp. GFAJ-1.
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Oceanospirillales;
OC Halomonadaceae; Halomonas.
OX NCBI_TaxID=1118153 {ECO:0000313|EMBL:EHK61967.1, ECO:0000313|Proteomes:UP000004512};
RN [1] {ECO:0000313|EMBL:EHK61967.1, ECO:0000313|Proteomes:UP000004512}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=GFAJ-1 {ECO:0000313|EMBL:EHK61967.1,
RC ECO:0000313|Proteomes:UP000004512};
RX PubMed=22408239; DOI=10.1128/JB.06664-11;
RA Phung le T., Silver S., Trimble W.L., Gilbert J.A.;
RT "Draft Genome of Halomonas Species Strain GFAJ-1 (ATCC BAA-2256).";
RL J. Bacteriol. 194:1835-1836(2012).
CC -!- FUNCTION: Catalyzes the transfer of a two-carbon ketol group from a
CC ketose donor to an aldose acceptor, via a covalent intermediate with
CC the cofactor thiamine pyrophosphate. {ECO:0000256|RuleBase:RU004996}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=D-glyceraldehyde 3-phosphate + D-sedoheptulose 7-phosphate =
CC aldehydo-D-ribose 5-phosphate + D-xylulose 5-phosphate;
CC Xref=Rhea:RHEA:10508, ChEBI:CHEBI:57483, ChEBI:CHEBI:57737,
CC ChEBI:CHEBI:58273, ChEBI:CHEBI:59776; EC=2.2.1.1;
CC Evidence={ECO:0000256|ARBA:ARBA00001027,
CC ECO:0000256|RuleBase:RU004996};
CC -!- COFACTOR:
CC Name=Ca(2+); Xref=ChEBI:CHEBI:29108;
CC Evidence={ECO:0000256|ARBA:ARBA00001913};
CC -!- COFACTOR:
CC Name=Co(2+); Xref=ChEBI:CHEBI:48828;
CC Evidence={ECO:0000256|ARBA:ARBA00001941};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|RuleBase:RU004996};
CC Name=Ca(2+); Xref=ChEBI:CHEBI:29108;
CC Evidence={ECO:0000256|RuleBase:RU004996};
CC Name=Mn(2+); Xref=ChEBI:CHEBI:29035;
CC Evidence={ECO:0000256|RuleBase:RU004996};
CC Name=Co(2+); Xref=ChEBI:CHEBI:48828;
CC Evidence={ECO:0000256|RuleBase:RU004996};
CC Note=Binds 1 Mg(2+) ion per subunit. Can also utilize other divalent
CC metal cations, such as Ca(2+), Mn(2+) and Co(2+).
CC {ECO:0000256|RuleBase:RU004996};
CC -!- COFACTOR:
CC Name=thiamine diphosphate; Xref=ChEBI:CHEBI:58937;
CC Evidence={ECO:0000256|RuleBase:RU004996};
CC Note=Binds 1 thiamine pyrophosphate per subunit.
CC {ECO:0000256|RuleBase:RU004996};
CC -!- SUBUNIT: Homodimer. {ECO:0000256|ARBA:ARBA00011738,
CC ECO:0000256|RuleBase:RU004996}.
CC -!- SIMILARITY: Belongs to the transketolase family.
CC {ECO:0000256|ARBA:ARBA00007131, ECO:0000256|RuleBase:RU004996}.
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:EHK61967.1}.
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DR EMBL; AHBC01000012; EHK61967.1; -; Genomic_DNA.
DR RefSeq; WP_009096600.1; NZ_CP016490.1.
DR AlphaFoldDB; H0IZC0; -.
DR STRING; 1118153.MOY_03568; -.
DR KEGG; hag:BB497_03580; -.
DR PATRIC; fig|1118153.6.peg.713; -.
DR eggNOG; COG0021; Bacteria.
DR OrthoDB; 8732661at2; -.
DR Proteomes; UP000004512; Unassembled WGS sequence.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0004802; F:transketolase activity; IEA:UniProtKB-EC.
DR CDD; cd07033; TPP_PYR_DXS_TK_like; 1.
DR CDD; cd02012; TPP_TK; 1.
DR Gene3D; 3.40.50.920; -; 1.
DR Gene3D; 3.40.50.970; -; 2.
DR InterPro; IPR029061; THDP-binding.
DR InterPro; IPR009014; Transketo_C/PFOR_II.
DR InterPro; IPR005475; Transketolase-like_Pyr-bd.
DR InterPro; IPR005478; Transketolase_bac-like.
DR InterPro; IPR020826; Transketolase_BS.
DR InterPro; IPR033248; Transketolase_C.
DR InterPro; IPR049557; Transketolase_CS.
DR InterPro; IPR033247; Transketolase_fam.
DR InterPro; IPR005474; Transketolase_N.
DR NCBIfam; TIGR00232; tktlase_bact; 1.
DR PANTHER; PTHR43522; TRANSKETOLASE; 1.
DR PANTHER; PTHR43522:SF2; TRANSKETOLASE 1-RELATED; 1.
DR Pfam; PF02779; Transket_pyr; 1.
DR Pfam; PF02780; Transketolase_C; 1.
DR Pfam; PF00456; Transketolase_N; 1.
DR SMART; SM00861; Transket_pyr; 1.
DR SUPFAM; SSF52518; Thiamin diphosphate-binding fold (THDP-binding); 2.
DR SUPFAM; SSF52922; TK C-terminal domain-like; 1.
DR PROSITE; PS00801; TRANSKETOLASE_1; 1.
DR PROSITE; PS00802; TRANSKETOLASE_2; 1.
PE 3: Inferred from homology;
KW Calcium {ECO:0000256|RuleBase:RU004996};
KW Magnesium {ECO:0000256|ARBA:ARBA00022842, ECO:0000256|RuleBase:RU004996};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723,
KW ECO:0000256|RuleBase:RU004996};
KW Reference proteome {ECO:0000313|Proteomes:UP000004512};
KW Thiamine pyrophosphate {ECO:0000256|ARBA:ARBA00023052,
KW ECO:0000256|RuleBase:RU004996};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|RuleBase:RU004996}.
FT DOMAIN 353..524
FT /note="Transketolase-like pyrimidine-binding"
FT /evidence="ECO:0000259|SMART:SM00861"
SQ SEQUENCE 663 AA; 72718 MW; 262AB54B9BD895E0 CRC64;
MPSRFELANA IRALSMDAVQ KAKSGHPGAP MGMADIAEVL WNDYLKHNPE DPKWADRDRF
VLSNGHGSML LYSLLHLSGY ELSLEQLQNF RQLHSPTAGH PEYGYAPGIE TTTGPLGQGF
ANAVGFAIAE KTLAAQFNRP GHTIVDHTTW CFLGDGCLME GISHEAASLA GTQQLGKLVA
LYDDNGISID GDVKGWFTDD TAKRFEAYGW HVVPNVDGHN PEEIKAAIEL AKSHDDKPSL
IICKTIIGFG APNKQGKEEA HGAPLGDEEV ALARKELGWE HPPFHIPEPI YSKWDARNAG
KTRQQEWDAR FARYAEAYPA EAREFKRRMK AQLPSDLSTE ALIEQAQEKG ESIASRKASF
EALNVIGPQM PELLGGSADL APSNLTFWKG AKAITPEDAS GNYLHYGVRE FGMGAVMNGI
ALHGGFVPYG ATFLIFMEYM RNAVRMAALM EKQAIYVFTH DSIGLGEDGP THQPIEQLTS
LRTTPNLNTW RPCDAVETVA AWDAALKRHS GPTALVLSRQ NLPHQSRTKT QLASIQRGGY
VLKDCDGTPE LILIATGSEV SLAMDAAAEL EKQGKAVRVV SMPSTFRYNG QEEEYRERVL
PKAVTKRIAI EAGHADYWYK YVGLDGRVIG MTTYGESAPA GELFKHFGFT VDNIVKQANE
LLG
//
