TTCA_PARPJ
ID TTCA_PARPJ Reviewed; 336 AA.
AC B2T6U6;
DT 02-SEP-2008, integrated into UniProtKB/Swiss-Prot.
DT 01-JUL-2008, sequence version 1.
DT 03-AUG-2022, entry version 66.
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=Bphyt_3730;
OS Paraburkholderia phytofirmans (strain DSM 17436 / LMG 22146 / PsJN)
OS (Burkholderia phytofirmans).
OC Bacteria; Proteobacteria; Betaproteobacteria; Burkholderiales;
OC Burkholderiaceae; Paraburkholderia.
OX NCBI_TaxID=398527;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 17436 / LMG 22146 / PsJN;
RX PubMed=21551308; DOI=10.1128/jb.05055-11;
RA Weilharter A., Mitter B., Shin M.V., Chain P.S., Nowak J., Sessitsch A.;
RT "Complete genome sequence of the plant growth-promoting endophyte
RT Burkholderia phytofirmans strain PsJN.";
RL J. Bacteriol. 193:3383-3384(2011).
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; CP001052; ACD18118.1; -; Genomic_DNA.
DR RefSeq; WP_012434646.1; NC_010681.1.
DR AlphaFoldDB; B2T6U6; -.
DR SMR; B2T6U6; -.
DR STRING; 398527.Bphyt_3730; -.
DR EnsemblBacteria; ACD18118; ACD18118; Bphyt_3730.
DR KEGG; bpy:Bphyt_3730; -.
DR eggNOG; COG0037; Bacteria.
DR HOGENOM; CLU_026481_0_0_4; -.
DR OMA; MNLDQKQ; -.
DR OrthoDB; 1051352at2; -.
DR Proteomes; UP000001739; Chromosome 1.
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; RNA-binding; Transferase;
KW tRNA processing; tRNA-binding.
FT CHAIN 1..336
FT /note="tRNA-cytidine(32) 2-sulfurtransferase"
FT /id="PRO_0000348690"
FT REGION 1..34
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT MOTIF 75..80
FT /note="PP-loop motif"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01850"
FT COMPBIAS 15..30
FT /note="Polar residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT BINDING 150
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01850"
FT BINDING 153
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01850"
FT BINDING 241
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01850"
SQ SEQUENCE 336 AA; 37443 MW; 50A246CBA338A384 CRC64;
MNAPEILNGA ATASPADATE ATQTAARAKT PLTRREQKEA YENNKLFKRL ARQVGEAIVD
FNMIENGDKV MVCLSGGKDS YAMLEILMRL RERAPINFDI VAVNLDQKQP GFPEHVLPEY
LKQLDIPFHI ENQDTYSIVK RLVPEGKTTC SLCSRLRRGI LYRVAGELGA TKIALGHHRD
DILQTLLLNM FYGGKLKGMP PKLQSDDGKN IVIRPLAYVK ETDLEKYAEL REFPIIPCNL
CGSQPNLKRA EMKALVRDWE KRFPGRIENM FNALSNVVPS HLMDHKLFPF AGLRATGEAD
PQGDIAFDEE PCSTDAAEGA MPGATKSISI VQFDDL
