ID MTNK_KLEP7 Reviewed; 399 AA.
AC A6T655;
DT 16-DEC-2008, integrated into UniProtKB/Swiss-Prot.
DT 21-AUG-2007, sequence version 1.
DT 27-MAR-2024, entry version 76.
DE RecName: Full=Methylthioribose kinase {ECO:0000255|HAMAP-Rule:MF_01683};
DE Short=MTR kinase {ECO:0000255|HAMAP-Rule:MF_01683};
DE EC=2.7.1.100 {ECO:0000255|HAMAP-Rule:MF_01683};
GN Name=mtnK {ECO:0000255|HAMAP-Rule:MF_01683};
GN OrderedLocusNames=KPN78578_06150; ORFNames=KPN_00626;
OS Klebsiella pneumoniae subsp. pneumoniae (strain ATCC 700721 / MGH 78578).
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; Klebsiella/Raoultella group; Klebsiella.
OX NCBI_TaxID=272620;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 700721 / MGH 78578;
RG The Klebsiella pneumonia Genome Sequencing Project;
RA McClelland M., Sanderson E.K., Spieth J., Clifton W.S., Latreille P.,
RA Sabo A., Pepin K., Bhonagiri V., Porwollik S., Ali J., Wilson R.K.;
RL Submitted (SEP-2006) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Catalyzes the phosphorylation of methylthioribose into
CC methylthioribose-1-phosphate. {ECO:0000255|HAMAP-Rule:MF_01683}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=5-(methylsulfanyl)-D-ribose + ATP = ADP + H(+) + S-methyl-5-
CC thio-alpha-D-ribose 1-phosphate; Xref=Rhea:RHEA:22312,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:30616, ChEBI:CHEBI:58533,
CC ChEBI:CHEBI:78440, ChEBI:CHEBI:456216; EC=2.7.1.100;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01683};
CC -!- PATHWAY: Amino-acid biosynthesis; L-methionine biosynthesis via salvage
CC pathway; S-methyl-5-thio-alpha-D-ribose 1-phosphate from S-methyl-5'-
CC thioadenosine (hydrolase route): step 2/2. {ECO:0000255|HAMAP-
CC Rule:MF_01683}.
CC -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_01683}.
CC -!- SIMILARITY: Belongs to the methylthioribose kinase family.
CC {ECO:0000255|HAMAP-Rule:MF_01683}.
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DR EMBL; CP000647; ABR76076.1; -; Genomic_DNA.
DR RefSeq; WP_004151657.1; NC_009648.1.
DR AlphaFoldDB; A6T655; -.
DR SMR; A6T655; -.
DR STRING; 272620.KPN_00626; -.
DR PaxDb; 272620-KPN_00626; -.
DR EnsemblBacteria; ABR76076; ABR76076; KPN_00626.
DR GeneID; 64296515; -.
DR KEGG; kpn:KPN_00626; -.
DR HOGENOM; CLU_033681_0_0_6; -.
DR UniPathway; UPA00904; UER00872.
DR Proteomes; UP000000265; Chromosome.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR GO; GO:0046522; F:S-methyl-5-thioribose kinase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0019509; P:L-methionine salvage from methylthioadenosine; IEA:UniProtKB-UniPathway.
DR GO; GO:0019284; P:L-methionine salvage from S-adenosylmethionine; IEA:UniProtKB-UniRule.
DR GO; GO:0016310; P:phosphorylation; IEA:UniProtKB-KW.
DR Gene3D; 3.90.1200.10; -; 1.
DR HAMAP; MF_01683; Salvage_MtnK; 1.
DR InterPro; IPR002575; Aminoglycoside_PTrfase.
DR InterPro; IPR011009; Kinase-like_dom_sf.
DR InterPro; IPR009212; Methylthioribose_kinase.
DR NCBIfam; TIGR01767; MTRK; 1.
DR PANTHER; PTHR34273; METHYLTHIORIBOSE KINASE; 1.
DR PANTHER; PTHR34273:SF2; METHYLTHIORIBOSE KINASE; 1.
DR Pfam; PF01636; APH; 1.
DR PIRSF; PIRSF031134; MTRK; 1.
DR SUPFAM; SSF56112; Protein kinase-like (PK-like); 1.
PE 3: Inferred from homology;
KW Amino-acid biosynthesis; ATP-binding; Kinase; Methionine biosynthesis;
KW Nucleotide-binding; Transferase.
FT CHAIN 1..399
FT /note="Methylthioribose kinase"
FT /id="PRO_0000357347"
FT BINDING 40
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01683"
FT BINDING 57
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01683"
FT BINDING 111..113
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01683"
FT BINDING 229
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01683"
FT BINDING 246..248
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01683"
FT BINDING 344
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01683"
SQ SEQUENCE 399 AA; 44591 MW; 75EE02F722B7D4B2 CRC64;
MSQYHTFTAH DAVAYAQQFA GIDNPSELVS AQEVGDGNLN LVFKVFDRQG VSRAIVKQAL
PYVRCVGESW PLTLDRARLE AQTLVAHYQH SPQHTVKIHH FDPELAVMVM EDLSDHRIWR
GELIANVYYP QAARQLGDYL AQVLFHTSDF YLHPHEKKAQ VAQFINPAMC EITEDLFFND
PYQIHERNNY PAELEADVAA LRDDAQLKLA VAALKHRFFA HAEALLHGDI HSGSIFVAEG
SLKAIDAEFG YFGPIGFDIG TAIGNLLLNY CGLPGQLGIR DAAAAREQRL NDIHQLWTTF
AERFQALAAE KTRDAALAYP GYASAFLKKV WADAVGFCGS ELIRRSVGLS HVADIDTIQD
DAMRHECLRH AITLGRALIV LAERIDSVDE LLARVRQYS
//
