ID A0A0D6XQQ0_9STAP Unreviewed; 448 AA.
AC A0A0D6XQQ0;
DT 27-MAY-2015, integrated into UniProtKB/TrEMBL.
DT 27-MAY-2015, sequence version 1.
DT 27-MAR-2024, entry version 34.
DE RecName: Full=tRNA (N(6)-L-threonylcarbamoyladenosine(37)-C(2))-methylthiotransferase {ECO:0000256|ARBA:ARBA00013273};
DE EC=2.8.4.5 {ECO:0000256|ARBA:ARBA00013273};
DE AltName: Full=tRNA-t(6)A37 methylthiotransferase {ECO:0000256|ARBA:ARBA00031213};
GN Name=miaB_2 {ECO:0000313|EMBL:SUM57508.1};
GN ORFNames=NCTC13832_01190 {ECO:0000313|EMBL:SUM57508.1}, TP70_09025
GN {ECO:0000313|EMBL:KIX90183.1};
OS Staphylococcus microti.
OC Bacteria; Bacillota; Bacilli; Bacillales; Staphylococcaceae;
OC Staphylococcus.
OX NCBI_TaxID=569857 {ECO:0000313|EMBL:KIX90183.1, ECO:0000313|Proteomes:UP000032366};
RN [1] {ECO:0000313|EMBL:KIX90183.1, ECO:0000313|Proteomes:UP000032366}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 22147 {ECO:0000313|EMBL:KIX90183.1,
RC ECO:0000313|Proteomes:UP000032366};
RA Guo J.;
RL Submitted (JAN-2015) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EMBL:SUM57508.1, ECO:0000313|Proteomes:UP000254100}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=NCTC13832 {ECO:0000313|EMBL:SUM57508.1,
RC ECO:0000313|Proteomes:UP000254100};
RG Pathogen Informatics;
RA Doyle S.;
RL Submitted (JUN-2018) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Catalyzes the methylthiolation of N6-
CC threonylcarbamoyladenosine (t(6)A), leading to the formation of 2-
CC methylthio-N6-threonylcarbamoyladenosine (ms(2)t(6)A) at position 37 in
CC tRNAs that read codons beginning with adenine.
CC {ECO:0000256|ARBA:ARBA00002399}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=[sulfur carrier]-SH + AH2 + N(6)-L-
CC threonylcarbamoyladenosine(37) in tRNA + 2 S-adenosyl-L-methionine =
CC 2-methylsulfanyl-N(6)-L-threonylcarbamoyladenosine(37) in tRNA + 5'-
CC deoxyadenosine + [sulfur carrier]-H + A + 2 H(+) + L-methionine + S-
CC adenosyl-L-homocysteine; Xref=Rhea:RHEA:37075, Rhea:RHEA-COMP:10163,
CC Rhea:RHEA-COMP:11092, Rhea:RHEA-COMP:14737, Rhea:RHEA-COMP:14739,
CC ChEBI:CHEBI:13193, ChEBI:CHEBI:15378, ChEBI:CHEBI:17319,
CC ChEBI:CHEBI:17499, ChEBI:CHEBI:29917, ChEBI:CHEBI:57844,
CC ChEBI:CHEBI:57856, ChEBI:CHEBI:59789, ChEBI:CHEBI:64428,
CC ChEBI:CHEBI:74418, ChEBI:CHEBI:74420; EC=2.8.4.5;
CC Evidence={ECO:0000256|ARBA:ARBA00000730};
CC -!- COFACTOR:
CC Name=[4Fe-4S] cluster; Xref=ChEBI:CHEBI:49883;
CC Evidence={ECO:0000256|ARBA:ARBA00001966};
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DR EMBL; JXWY01000081; KIX90183.1; -; Genomic_DNA.
DR EMBL; UHDT01000001; SUM57508.1; -; Genomic_DNA.
DR RefSeq; WP_044361121.1; NZ_UHDT01000001.1.
DR AlphaFoldDB; A0A0D6XQQ0; -.
DR STRING; 569857.TP70_09025; -.
DR PATRIC; fig|569857.6.peg.75; -.
DR OrthoDB; 9805215at2; -.
DR Proteomes; UP000032366; Unassembled WGS sequence.
DR Proteomes; UP000254100; Unassembled WGS sequence.
DR GO; GO:0005840; C:ribosome; IEA:UniProtKB-KW.
DR GO; GO:0051539; F:4 iron, 4 sulfur cluster binding; IEA:UniProtKB-KW.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0035598; F:N6-threonylcarbomyladenosine methylthiotransferase activity; IEA:InterPro.
DR CDD; cd01335; Radical_SAM; 1.
DR Gene3D; 3.40.50.12160; Methylthiotransferase, N-terminal domain; 1.
DR Gene3D; 3.80.30.20; tm_1862 like domain; 1.
DR InterPro; IPR006638; Elp3/MiaA/NifB-like_rSAM.
DR InterPro; IPR005839; Methylthiotransferase.
DR InterPro; IPR020612; Methylthiotransferase_CS.
DR InterPro; IPR013848; Methylthiotransferase_N.
DR InterPro; IPR038135; Methylthiotransferase_N_sf.
DR InterPro; IPR006467; MiaB-like_bact.
DR InterPro; IPR007197; rSAM.
DR InterPro; IPR023404; rSAM_horseshoe.
DR InterPro; IPR034557; ThrcA_tRNA_MEthiotransferase.
DR InterPro; IPR002792; TRAM_dom.
DR NCBIfam; TIGR01579; MiaB-like-C; 1.
DR NCBIfam; TIGR01574; miaB-methiolase; 1.
DR NCBIfam; TIGR00089; MiaB/RimO family radical SAM methylthiotransferase; 1.
DR PANTHER; PTHR11918; RADICAL SAM PROTEINS; 1.
DR PANTHER; PTHR11918:SF45; THREONYLCARBAMOYLADENOSINE TRNA METHYLTHIOTRANSFERASE; 1.
DR Pfam; PF04055; Radical_SAM; 1.
DR Pfam; PF00919; UPF0004; 1.
DR SFLD; SFLDG01082; B12-binding_domain_containing; 1.
DR SFLD; SFLDS00029; Radical_SAM; 1.
DR SFLD; SFLDF00295; threonylcarbamoyladenosine_tRN; 1.
DR SMART; SM00729; Elp3; 1.
DR SUPFAM; SSF102114; Radical SAM enzymes; 1.
DR PROSITE; PS51449; MTTASE_N; 1.
DR PROSITE; PS01278; MTTASE_RADICAL; 1.
DR PROSITE; PS51918; RADICAL_SAM; 1.
DR PROSITE; PS50926; TRAM; 1.
PE 4: Predicted;
KW 4Fe-4S {ECO:0000256|ARBA:ARBA00022485};
KW Iron {ECO:0000256|ARBA:ARBA00023004};
KW Iron-sulfur {ECO:0000256|ARBA:ARBA00023014};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723};
KW Ribonucleoprotein {ECO:0000313|EMBL:KIX90183.1};
KW Ribosomal protein {ECO:0000313|EMBL:KIX90183.1};
KW S-adenosyl-L-methionine {ECO:0000256|ARBA:ARBA00022691};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000313|EMBL:KIX90183.1};
KW tRNA processing {ECO:0000256|ARBA:ARBA00022694}.
FT DOMAIN 2..114
FT /note="MTTase N-terminal"
FT /evidence="ECO:0000259|PROSITE:PS51449"
FT DOMAIN 139..370
FT /note="Radical SAM core"
FT /evidence="ECO:0000259|PROSITE:PS51918"
FT DOMAIN 367..433
FT /note="TRAM"
FT /evidence="ECO:0000259|PROSITE:PS50926"
SQ SEQUENCE 448 AA; 50918 MW; 72908F6CC03237C4 CRC64;
MSTVAFHTLG CKVNHYETEA IWQLFKEADY ERVDFEQNAD VFVINTCTVT NTGDKKSRQV
IRRAIRQNPD AVVCVTGCYA QTSSAEIMEI PGVDIVVGTQ DRHKLLSYID EYQQERQPIN
GVSNIMKNRT YEELDVPYFT DRTRASLKIQ EGCNNFCTFC IIPWARGLMR SRDPQKVVEQ
ATQLVQSGYK EIVLTGIHTG GYGQDLKDYN LAQLLRDLET VDGLERIRIS SIEASQLTDE
VIEVLQQSSK VVRHLHIPLQ SGSDTVLKRM RRKYSMAHFS ERIKKLHAAL PGLAVTSDVI
VGFPGETEEE FQETYDFIVE HKFSELHVFP YSPRIGTPAA RMDDQIDEEV KNERVHKLIE
LSNQLAKTYA SQFENDVLEV IPEEKSAKDG VLVGYADNYM KVEFEGDASL IGEICKVKIN
QVGYPINYGT FLRTVEHANN QSEIEILA
//
