CS5_COFAR
ID CS5_COFAR Reviewed; 385 AA.
AC A0A096VHX6;
DT 10-FEB-2021, integrated into UniProtKB/Swiss-Prot.
DT 07-JAN-2015, sequence version 1.
DT 03-AUG-2022, entry version 16.
DE RecName: Full=Probable caffeine synthase MTL3 {ECO:0000305};
DE EC=2.1.1.- {ECO:0000250|UniProtKB:Q8H0D2};
DE AltName: Full=Methyltransferase-like 3 {ECO:0000303|PubMed:25249475};
DE Short=CaMTL3 {ECO:0000303|PubMed:25249475};
GN Name=MTL3 {ECO:0000303|PubMed:25249475};
OS Coffea arabica (Arabian coffee).
OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC asterids; lamiids; Gentianales; Rubiaceae; Ixoroideae; Gardenieae complex;
OC Bertiereae - Coffeeae clade; Coffeeae; Coffea.
OX NCBI_TaxID=13443;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA], GENE FAMILY, AND NOMENCLATURE.
RC STRAIN=cv. ET39;
RX PubMed=25249475; DOI=10.1007/s00425-014-2170-7;
RA Perrois C., Strickler S.R., Mathieu G., Lepelley M., Bedon L., Michaux S.,
RA Husson J., Mueller L., Privat I.;
RT "Differential regulation of caffeine metabolism in Coffea arabica (Arabica)
RT and Coffea canephora (Robusta).";
RL Planta 241:179-191(2015).
CC -!- FUNCTION: May be involved in the biosynthesis of caffeine.
CC {ECO:0000250|UniProtKB:Q8H0D2}.
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000250|UniProtKB:Q9FLN8};
CC Note=Binds 1 Mg(2+) ion per subunit. {ECO:0000250|UniProtKB:Q9FLN8};
CC -!- PATHWAY: Alkaloid biosynthesis. {ECO:0000250|UniProtKB:Q8H0D2}.
CC -!- SIMILARITY: Belongs to the methyltransferase superfamily. Type-7
CC methyltransferase family. {ECO:0000305}.
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DR EMBL; JX978513; AFV60441.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A096VHX6; -.
DR SMR; A0A096VHX6; -.
DR Proteomes; UP000515148; Genome assembly.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0008168; F:methyltransferase activity; IEA:UniProtKB-KW.
DR GO; GO:0032259; P:methylation; IEA:UniProtKB-KW.
DR Gene3D; 1.10.1200.270; -; 1.
DR Gene3D; 3.40.50.150; -; 1.
DR InterPro; IPR005299; MeTrfase_7.
DR InterPro; IPR042086; MeTrfase_capping.
DR InterPro; IPR029063; SAM-dependent_MTases_sf.
DR PANTHER; PTHR31009; PTHR31009; 1.
DR Pfam; PF03492; Methyltransf_7; 1.
DR SUPFAM; SSF53335; SSF53335; 1.
PE 3: Inferred from homology;
KW Magnesium; Metal-binding; Methyltransferase; Reference proteome;
KW Transferase.
FT CHAIN 1..385
FT /note="Probable caffeine synthase MTL3"
FT /id="PRO_0000451795"
FT BINDING 18
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000250|UniProtKB:A4GE70"
FT BINDING 18
FT /ligand="substrate"
FT /evidence="ECO:0000250|UniProtKB:A4GE70"
FT BINDING 21..25
FT /ligand="substrate"
FT /evidence="ECO:0000250|UniProtKB:A4GE69"
FT BINDING 61..62
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000250|UniProtKB:Q9FLN8"
FT BINDING 61
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000250|UniProtKB:A4GE69"
FT BINDING 62
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000250|UniProtKB:A0A6C0WW36"
FT BINDING 67
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000250|UniProtKB:A4GE70"
FT BINDING 99..102
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000250|UniProtKB:A4GE69"
FT BINDING 140..142
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000250|UniProtKB:A4GE69"
FT BINDING 157..159
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000250|UniProtKB:A4GE69"
FT BINDING 158..162
FT /ligand="substrate"
FT /evidence="ECO:0000250|UniProtKB:A4GE69"
FT BINDING 179
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000250|UniProtKB:Q9FLN8"
FT BINDING 261
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000250|UniProtKB:Q9FLN8"
FT BINDING 263
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000250|UniProtKB:Q9FLN8"
FT BINDING 264
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000250|UniProtKB:Q9FLN8"
FT BINDING 369
FT /ligand="substrate"
FT /evidence="ECO:0000250|UniProtKB:A4GE69"
FT SITE 155
FT /note="Involved in substrate discrimination"
FT /evidence="ECO:0000250|UniProtKB:Q9FZN8"
FT SITE 267
FT /note="Involved in substrate discrimination"
FT /evidence="ECO:0000250|UniProtKB:Q9FZN8"
FT SITE 344
FT /note="Involved in substrate discrimination"
FT /evidence="ECO:0000250|UniProtKB:Q9FZN8"
SQ SEQUENCE 385 AA; 43545 MW; 65EB9BB65B2BDB12 CRC64;
MELQEVLHMN GGESDTSYAK NSSYNQLVLT KVKPVLEQCI RELLRANLPN INKCIKVADL
GCASGPNTLL TVRDIVQSID KVGQEEKNEL EHPTIQIFLN DLFQNDFNSV FKLLPSFYRK
LEKENGRKIG SCLISAMPGS FYGRLFPEES MHFLHSCYSV HWLSQVPSGL VTELGISANK
GIIYSSKASP PPVQKAYLDQ FTKDFTTFLR IHSEELLSRG RMLLTCICKG DESDGLNTID
LLERAINDLV VEGLLEEEKL DSFNLPLYTP SLEVVKCIVE EEGSFEILYL ETFKVRYDAG
FSIDDDYQVR SLFQVYCDEH VKAAYVTFFF RAVFEPILAS HFGEAIMPDL FHRFAKNAAK
ALRLGNGFYN SLIISLAKKP EKSDV
