ID A0A252EAE6_9NOSO Unreviewed; 670 AA.
AC A0A252EAE6;
DT 22-NOV-2017, integrated into UniProtKB/TrEMBL.
DT 22-NOV-2017, sequence version 1.
DT 27-MAR-2024, entry version 29.
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=BV372_05260 {ECO:0000313|EMBL:OUL36865.1};
OS Nostoc sp. T09.
OC Bacteria; Cyanobacteriota; Cyanophyceae; Nostocales; Nostocaceae; Nostoc.
OX NCBI_TaxID=1932621 {ECO:0000313|EMBL:OUL36865.1, ECO:0000313|Proteomes:UP000195076};
RN [1] {ECO:0000313|EMBL:OUL36865.1, ECO:0000313|Proteomes:UP000195076}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=T09 {ECO:0000313|EMBL:OUL36865.1};
RA Cruz-Morales P., Corona-Gomez J.A., Gutierrez-Garcia K.G., Barona-Gomez F.,
RA Cibrian-Jaramillo A.;
RT "Metagenomics of subcommunity co-cultures reveals the complexity of the
RT cycad coralloid root endophytic microbiome.";
RL Submitted (JAN-2017) to the EMBL/GenBank/DDBJ databases.
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=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:OUL36865.1}.
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DR EMBL; MTAV01000015; OUL36865.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A252EAE6; -.
DR OrthoDB; 8732661at2; -.
DR Proteomes; UP000195076; 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:UP000195076};
KW Thiamine pyrophosphate {ECO:0000256|ARBA:ARBA00023052,
KW ECO:0000256|RuleBase:RU004996};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|RuleBase:RU004996}.
FT DOMAIN 359..533
FT /note="Transketolase-like pyrimidine-binding"
FT /evidence="ECO:0000259|SMART:SM00861"
SQ SEQUENCE 670 AA; 72236 MW; 5F98831755547C7B CRC64;
MAVATQSLEE LSINSIRFLA VDAVEKAKSG HPGLPMGAAP MAFVLWDRFM RFNPKNPKWF
NRDRFILSAG HGSMLQYALL YLYGYDSVSI EDIKQFRQWE SKTPGHPENF MTAGVEVTTG
PLGQGIANGV GVAIAEAHLA AKFNKPDAKI VDHYTYVILG DGCNMEGISG EAASFAGHLG
LGKLIALYDD NHISIDGSTD VAFTEDVSKR FEAYGWHVLH VKDGNTDLEA IAKAIEEAKS
VTDKPSMIKV TTTIGYGSPN KANTAGVHGA ALGADEIALT RKQLNWEYEP FDVPQDALNH
TRKAVERGAG YEADWNKTFA DYKAKYPQEA AEFERYISSK LPDGWDQVLP TYTPEDKGLP
TRKHSETCLN KLAAVLPELI GGSADLTHSN LTEIKGKGDF QKGNYQNPNI HFGVREHGMG
AICNGIALHT SGLIPYGATF LIFTDYMRAA IRLSALSQAG VIWVMTHDSI GQGEDGPTHQ
PIETLASLRA IPNLTVIRPA DGTETSGAYK IAIERAKQNA PTLLAFTRQN VPNLAATSIE
GVSKGGYIVV DSEGTPDIIL IGTGSELSLA VTAAEKLTAE GKKVRVVSLP AWDLFEAQDA
AYKESVLPKG VTKRLSVEAA SSFGWHKYVG TEGDTVSIDR FGASAPGGVC LEKFGFSVDN
VLAKAKQLLG
//
