ID A0A1B3MVW8_9SPHN Unreviewed; 372 AA.
AC A0A1B3MVW8;
DT 02-NOV-2016, integrated into UniProtKB/TrEMBL.
DT 02-NOV-2016, sequence version 1.
DT 27-MAR-2024, entry version 46.
DE SubName: Full=Methylated-DNA--[]-cysteine S-methyltransferase family protein {ECO:0000313|EMBL:AOF97234.1};
DE EC=2.1.1.63 {ECO:0000313|EMBL:AOF97234.1};
GN ORFNames=BSY17_2070 {ECO:0000313|EMBL:AOF97234.1};
OS Sphingobium sp. RAC03.
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Sphingomonadales;
OC Sphingomonadaceae; Sphingobium.
OX NCBI_TaxID=1843368 {ECO:0000313|EMBL:AOF97234.1, ECO:0000313|Proteomes:UP000094323};
RN [1] {ECO:0000313|EMBL:AOF97234.1, ECO:0000313|Proteomes:UP000094323}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=RAC03 {ECO:0000313|EMBL:AOF97234.1,
RC ECO:0000313|Proteomes:UP000094323};
RA Fixen K.R., Hovde B., Kunde Y.A., Davenport K.W., Johnson S.L., Li P.-E.,
RA Xu Y., Daligault H.E., Deodato C.R., Starkenburg S.R., Cattolico R.A.;
RL Submitted (JUL-2016) to the EMBL/GenBank/DDBJ databases.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=a 4-O-methyl-thymidine in DNA + L-cysteinyl-[protein] = a
CC thymidine in DNA + S-methyl-L-cysteinyl-[protein];
CC Xref=Rhea:RHEA:53428, Rhea:RHEA-COMP:10131, Rhea:RHEA-COMP:10132,
CC Rhea:RHEA-COMP:13555, Rhea:RHEA-COMP:13556, ChEBI:CHEBI:29950,
CC ChEBI:CHEBI:82612, ChEBI:CHEBI:137386, ChEBI:CHEBI:137387;
CC EC=2.1.1.63; Evidence={ECO:0000256|ARBA:ARBA00001286};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=a 6-O-methyl-2'-deoxyguanosine in DNA + L-cysteinyl-[protein]
CC = a 2'-deoxyguanosine in DNA + S-methyl-L-cysteinyl-[protein];
CC Xref=Rhea:RHEA:24000, Rhea:RHEA-COMP:10131, Rhea:RHEA-COMP:10132,
CC Rhea:RHEA-COMP:11367, Rhea:RHEA-COMP:11368, ChEBI:CHEBI:29950,
CC ChEBI:CHEBI:82612, ChEBI:CHEBI:85445, ChEBI:CHEBI:85448; EC=2.1.1.63;
CC Evidence={ECO:0000256|ARBA:ARBA00001596};
CC -!- COFACTOR:
CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC Evidence={ECO:0000256|PIRSR:PIRSR000409-3};
CC Note=Binds 1 zinc ion per subunit. {ECO:0000256|PIRSR:PIRSR000409-3};
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DR EMBL; CP016456; AOF97234.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A1B3MVW8; -.
DR STRING; 1843368.BSY17_2070; -.
DR KEGG; sphr:BSY17_2070; -.
DR PATRIC; fig|1843368.3.peg.2122; -.
DR Proteomes; UP000094323; Chromosome.
DR GO; GO:0003700; F:DNA-binding transcription factor activity; IEA:InterPro.
DR GO; GO:0003908; F:methylated-DNA-[protein]-cysteine S-methyltransferase activity; IEA:UniProtKB-EC.
DR GO; GO:0043565; F:sequence-specific DNA binding; IEA:InterPro.
DR GO; GO:0008270; F:zinc ion binding; IEA:InterPro.
DR GO; GO:0006304; P:DNA modification; IEA:UniProt.
DR GO; GO:0006281; P:DNA repair; IEA:UniProtKB-KW.
DR GO; GO:0032259; P:methylation; IEA:UniProtKB-KW.
DR CDD; cd06445; ATase; 1.
DR Gene3D; 3.40.10.10; DNA Methylphosphotriester Repair Domain; 1.
DR Gene3D; 1.10.10.60; Homeodomain-like; 1.
DR Gene3D; 3.30.160.70; Methylated DNA-protein cysteine methyltransferase domain; 1.
DR Gene3D; 1.10.10.10; Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain; 1.
DR InterPro; IPR035451; Ada-like_dom_sf.
DR InterPro; IPR004026; Ada_DNA_repair_Zn-bd.
DR InterPro; IPR016221; Bifunct_regulatory_prot_Ada.
DR InterPro; IPR009057; Homeobox-like_sf.
DR InterPro; IPR018060; HTH_AraC.
DR InterPro; IPR001497; MethylDNA_cys_MeTrfase_AS.
DR InterPro; IPR014048; MethylDNA_cys_MeTrfase_DNA-bd.
DR InterPro; IPR036217; MethylDNA_cys_MeTrfase_DNAb.
DR InterPro; IPR008332; MethylG_MeTrfase_N.
DR InterPro; IPR036631; MGMT_N_sf.
DR InterPro; IPR036388; WH-like_DNA-bd_sf.
DR NCBIfam; TIGR00589; ogt; 1.
DR PANTHER; PTHR10815:SF14; BIFUNCTIONAL TRANSCRIPTIONAL ACTIVATOR_DNA REPAIR ENZYME ADA; 1.
DR PANTHER; PTHR10815; METHYLATED-DNA--PROTEIN-CYSTEINE METHYLTRANSFERASE; 1.
DR Pfam; PF02805; Ada_Zn_binding; 1.
DR Pfam; PF01035; DNA_binding_1; 1.
DR Pfam; PF12833; HTH_18; 1.
DR Pfam; PF02870; Methyltransf_1N; 1.
DR PIRSF; PIRSF000409; Ada; 1.
DR SMART; SM00342; HTH_ARAC; 1.
DR SUPFAM; SSF57884; Ada DNA repair protein, N-terminal domain (N-Ada 10); 1.
DR SUPFAM; SSF46689; Homeodomain-like; 1.
DR SUPFAM; SSF53155; Methylated DNA-protein cysteine methyltransferase domain; 1.
DR SUPFAM; SSF46767; Methylated DNA-protein cysteine methyltransferase, C-terminal domain; 1.
DR PROSITE; PS01124; HTH_ARAC_FAMILY_2; 1.
DR PROSITE; PS00374; MGMT; 1.
PE 4: Predicted;
KW Activator {ECO:0000256|ARBA:ARBA00023159};
KW DNA damage {ECO:0000256|ARBA:ARBA00023204};
KW DNA repair {ECO:0000256|ARBA:ARBA00023204};
KW Metal-binding {ECO:0000256|PIRSR:PIRSR000409-3};
KW Methyltransferase {ECO:0000256|ARBA:ARBA00022603,
KW ECO:0000313|EMBL:AOF97234.1};
KW Reference proteome {ECO:0000313|Proteomes:UP000094323};
KW Transcription {ECO:0000256|ARBA:ARBA00023163};
KW Transcription regulation {ECO:0000256|ARBA:ARBA00023015};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000313|EMBL:AOF97234.1};
KW Zinc {ECO:0000256|PIRSR:PIRSR000409-3}.
FT DOMAIN 107..208
FT /note="HTH araC/xylS-type"
FT /evidence="ECO:0000259|PROSITE:PS01124"
FT ACT_SITE 65
FT /note="Nucleophile; methyl group acceptor from
FT methylphosphotriester"
FT /evidence="ECO:0000256|PIRSR:PIRSR000409-1"
FT ACT_SITE 342
FT /note="Nucleophile; methyl group acceptor from either O6-
FT methylguanine or O4-methylthymine"
FT /evidence="ECO:0000256|PIRSR:PIRSR000409-1"
FT BINDING 65
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|PIRSR:PIRSR000409-3"
FT BINDING 69
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|PIRSR:PIRSR000409-3"
FT BINDING 96
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|PIRSR:PIRSR000409-3"
FT BINDING 99
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|PIRSR:PIRSR000409-3"
SQ SEQUENCE 372 AA; 40066 MW; E115581FD669C076 CRC64;
MPQWFESKAR EAWPSARVYS IAMILMTSLA DPMPDDATCW AAFRARDRTM DDRFVGCVVT
TGIYCKPSCA ARHPKRENMR FLPDPAAARA AGFRACLRCR PDEVGRDRIA VAAARALIEA
AEGAPRLEAI AAHVGYAPHH FHRLFKRETG LTPAAYARAL RADRLKAALD SLGSVTSAIY
AAGYNAPSRA YADADRHLGM TPSAWKDGGR GALIRWRTID SSLGPLLVAA TARGLCRISF
GEGEPELRAR FPNADLQPAD GALDQLAQAV VALVDRPGET PDLPIDVCGT AFQQAVWAAL
RAIPPGETRS YSEVAAAIGR PQAVRAAGSA CGDNVLAVLI PCHRVLRRDG TLGGYAWGLD
RKRALLAREK GE
//
