TTCA_CHRVO
ID TTCA_CHRVO Reviewed; 319 AA.
AC Q7NQK6;
DT 02-SEP-2008, integrated into UniProtKB/Swiss-Prot.
DT 15-DEC-2003, sequence version 1.
DT 03-AUG-2022, entry version 91.
DE RecName: Full=tRNA-cytidine(32) 2-sulfurtransferase {ECO:0000255|HAMAP-Rule:MF_01850};
DE EC=2.8.1.- {ECO:0000255|HAMAP-Rule:MF_01850};
DE AltName: Full=Two-thiocytidine biosynthesis protein A {ECO:0000255|HAMAP-Rule:MF_01850};
DE AltName: Full=tRNA 2-thiocytidine biosynthesis protein TtcA {ECO:0000255|HAMAP-Rule:MF_01850};
GN Name=ttcA {ECO:0000255|HAMAP-Rule:MF_01850}; OrderedLocusNames=CV_4131;
OS Chromobacterium violaceum (strain ATCC 12472 / DSM 30191 / JCM 1249 / NBRC
OS 12614 / NCIMB 9131 / NCTC 9757).
OC Bacteria; Proteobacteria; Betaproteobacteria; Neisseriales;
OC Chromobacteriaceae; Chromobacterium.
OX NCBI_TaxID=243365;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 12472 / DSM 30191 / JCM 1249 / NBRC 12614 / NCIMB 9131 / NCTC
RC 9757;
RX PubMed=14500782; DOI=10.1073/pnas.1832124100;
RA Vasconcelos A.T.R., de Almeida D.F., Hungria M., Guimaraes C.T.,
RA Antonio R.V., Almeida F.C., de Almeida L.G.P., de Almeida R.,
RA Alves-Gomes J.A., Andrade E.M., Araripe J., de Araujo M.F.F.,
RA Astolfi-Filho S., Azevedo V., Baptista A.J., Bataus L.A.M., Batista J.S.,
RA Belo A., van den Berg C., Bogo M., Bonatto S., Bordignon J., Brigido M.M.,
RA Brito C.A., Brocchi M., Burity H.A., Camargo A.A., Cardoso D.D.P.,
RA Carneiro N.P., Carraro D.M., Carvalho C.M.B., Cascardo J.C.M., Cavada B.S.,
RA Chueire L.M.O., Creczynski-Pasa T.B., Cunha-Junior N.C., Fagundes N.,
RA Falcao C.L., Fantinatti F., Farias I.P., Felipe M.S.S., Ferrari L.P.,
RA Ferro J.A., Ferro M.I.T., Franco G.R., Freitas N.S.A., Furlan L.R.,
RA Gazzinelli R.T., Gomes E.A., Goncalves P.R., Grangeiro T.B.,
RA Grattapaglia D., Grisard E.C., Hanna E.S., Jardim S.N., Laurino J.,
RA Leoi L.C.T., Lima L.F.A., Loureiro M.F., Lyra M.C.C.P., Madeira H.M.F.,
RA Manfio G.P., Maranhao A.Q., Martins W.S., di Mauro S.M.Z.,
RA de Medeiros S.R.B., Meissner R.V., Moreira M.A.M., Nascimento F.F.,
RA Nicolas M.F., Oliveira J.G., Oliveira S.C., Paixao R.F.C., Parente J.A.,
RA Pedrosa F.O., Pena S.D.J., Pereira J.O., Pereira M., Pinto L.S.R.C.,
RA Pinto L.S., Porto J.I.R., Potrich D.P., Ramalho-Neto C.E., Reis A.M.M.,
RA Rigo L.U., Rondinelli E., Santos E.B.P., Santos F.R., Schneider M.P.C.,
RA Seuanez H.N., Silva A.M.R., da Silva A.L.C., Silva D.W., Silva R.,
RA Simoes I.C., Simon D., Soares C.M.A., Soares R.B.A., Souza E.M.,
RA Souza K.R.L., Souza R.C., Steffens M.B.R., Steindel M., Teixeira S.R.,
RA Urmenyi T., Vettore A., Wassem R., Zaha A., Simpson A.J.G.;
RT "The complete genome sequence of Chromobacterium violaceum reveals
RT remarkable and exploitable bacterial adaptability.";
RL Proc. Natl. Acad. Sci. U.S.A. 100:11660-11665(2003).
CC -!- FUNCTION: Catalyzes the ATP-dependent 2-thiolation of cytidine in
CC position 32 of tRNA, to form 2-thiocytidine (s(2)C32). The sulfur atoms
CC are provided by the cysteine/cysteine desulfurase (IscS) system.
CC {ECO:0000255|HAMAP-Rule:MF_01850}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=AH2 + ATP + cytidine(32) in tRNA + S-sulfanyl-L-cysteinyl-
CC [cysteine desulfurase] = 2-thiocytidine(32) in tRNA + A + AMP +
CC diphosphate + H(+) + L-cysteinyl-[cysteine desulfurase];
CC Xref=Rhea:RHEA:57048, Rhea:RHEA-COMP:10288, Rhea:RHEA-COMP:12157,
CC Rhea:RHEA-COMP:12158, Rhea:RHEA-COMP:14821, ChEBI:CHEBI:13193,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:17499, ChEBI:CHEBI:29950,
CC ChEBI:CHEBI:30616, ChEBI:CHEBI:33019, ChEBI:CHEBI:61963,
CC ChEBI:CHEBI:82748, ChEBI:CHEBI:141453, ChEBI:CHEBI:456215;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01850};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:57049;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01850};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01850};
CC -!- COFACTOR:
CC Name=[4Fe-4S] cluster; Xref=ChEBI:CHEBI:49883;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01850};
CC Note=Binds 1 [4Fe-4S] cluster per subunit. The cluster is chelated by
CC three Cys residues, the fourth Fe has a free coordination site that may
CC bind a sulfur atom transferred from the persulfide of IscS.
CC {ECO:0000255|HAMAP-Rule:MF_01850};
CC -!- PATHWAY: tRNA modification. {ECO:0000255|HAMAP-Rule:MF_01850}.
CC -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_01850}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01850}.
CC -!- MISCELLANEOUS: The thiolation reaction likely consists of two steps: a
CC first activation step by ATP to form an adenylated intermediate of the
CC target base of tRNA, and a second nucleophilic substitution step of the
CC sulfur (S) atom supplied by the hydrosulfide attached to the Fe-S
CC cluster. {ECO:0000255|HAMAP-Rule:MF_01850}.
CC -!- SIMILARITY: Belongs to the TtcA family. {ECO:0000255|HAMAP-
CC Rule:MF_01850}.
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DR EMBL; AE016825; AAQ61792.1; -; Genomic_DNA.
DR AlphaFoldDB; Q7NQK6; -.
DR SMR; Q7NQK6; -.
DR STRING; 243365.CV_4131; -.
DR EnsemblBacteria; AAQ61792; AAQ61792; CV_4131.
DR KEGG; cvi:CV_4131; -.
DR eggNOG; COG0037; Bacteria.
DR HOGENOM; CLU_026481_0_0_4; -.
DR OMA; MNLDQKQ; -.
DR Proteomes; UP000001424; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0051539; F:4 iron, 4 sulfur cluster binding; IEA:UniProtKB-UniRule.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0016783; F:sulfurtransferase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0000049; F:tRNA binding; IEA:UniProtKB-KW.
DR GO; GO:0034227; P:tRNA thio-modification; IEA:UniProtKB-UniRule.
DR Gene3D; 3.40.50.620; -; 1.
DR HAMAP; MF_01850; TtcA; 1.
DR InterPro; IPR014729; Rossmann-like_a/b/a_fold.
DR InterPro; IPR011063; TilS/TtcA_N.
DR InterPro; IPR012089; tRNA_Cyd_32_2_STrfase.
DR Pfam; PF01171; ATP_bind_3; 1.
PE 3: Inferred from homology;
KW 4Fe-4S; ATP-binding; Cytoplasm; Iron; Iron-sulfur; Magnesium;
KW Metal-binding; Nucleotide-binding; Reference proteome; RNA-binding;
KW Transferase; tRNA processing; tRNA-binding.
FT CHAIN 1..319
FT /note="tRNA-cytidine(32) 2-sulfurtransferase"
FT /id="PRO_0000348699"
FT REGION 276..319
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT MOTIF 49..54
FT /note="PP-loop motif"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01850"
FT COMPBIAS 277..309
FT /note="Basic and acidic residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT BINDING 124
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01850"
FT BINDING 127
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01850"
FT BINDING 215
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01850"
SQ SEQUENCE 319 AA; 35721 MW; 07E46C7903F82A73 CRC64;
MNAALDDKAA KKAAFEGNKL AKRLRHHVGD AINDFNMIEE GDRVMVCLSG GKDSYTLLDI
LRGLQKSAPI NFSIVAVNLD QKQPGFPEHV LPEYLKSIGV EYRIVEEDTY SIVKRLVPEG
KTTCSLCSRL RRGILYRVAD ELGATKIALG HHRDDILHTL FLNMFYGGKM KAMPPKLVSD
DGRHMVIRPL AYCREKDIIR YADWKAFPII PCNLCGSQPN LQRQVVKEMV NDWDKRFPGR
VESMFRALQN VVPSHLADPK LFDFVGLQTG DAPFADGDTA FDKEEFRDPA PDADDVEDAP
KKRTISILDS RGKESGCGA
