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| | ARQ99864.1 | Formyltransferase domain-containing protein; Pfam matches to PF00551.15 Formyl_trans_N, and to PF02911.14 Formyl_trans_C. (308 aa) |
| | gidB | 16S rRNA m7G527 methyltransferase; Specifically methylates the N7 position of guanine in position 527 of 16S rRNA. (179 aa) |
| | thrS | threonyl-tRNA synthetase; Pfam matches to PF00587.21 tRNA-synt_2b, and to PF03129.16 HGTP_anticodon, and to PF07973.10 tRNA_SAD; Belongs to the class-II aminoacyl-tRNA synthetase family. (604 aa) |
| | rnhB | Ribonuclease HII; Endonuclease that specifically degrades the RNA of RNA-DNA hybrids. (189 aa) |
| | ARR00013.1 | Wyosine [tRNA(Phe)-imidazoG37] synthetase, radical SAM superfamily; Pfam match to PF04055.17 Radical_SAM. (302 aa) |
| | dusB | tRNA-dihydrouridine synthase B; Catalyzes the synthesis of 5,6-dihydrouridine (D), a modified base found in the D-loop of most tRNAs, via the reduction of the C5-C6 double bond in target uridines; Belongs to the dus family. (312 aa) |
| | rlmH | SPOUT methyltransferase; Specifically methylates the pseudouridine at position 1915 (m3Psi1915) in 23S rRNA; Belongs to the RNA methyltransferase RlmH family. (148 aa) |
| | mnmG | 5-carboxymethylaminomethyluridine-tRNA synthase MnmEG, MnmG component; NAD-binding protein involved in the addition of a carboxymethylaminomethyl (cmnm) group at the wobble position (U34) of certain tRNAs, forming tRNA-cmnm(5)s(2)U34; Belongs to the MnmG family. (619 aa) |
| | queH | DUF208 domain protein; Catalyzes the conversion of epoxyqueuosine (oQ) to queuosine (Q), which is a hypermodified base found in the wobble positions of tRNA(Asp), tRNA(Asn), tRNA(His) and tRNA(Tyr). (355 aa) |
| | tsaC | threonylcarbamoyl-AMP synthase TsaC. (140 aa) |
| | ARR00077.1 | Dinucleotide-utilizing enzyme, molybdopterin/thiamine biosynthesis family 1; Pfam match to PF00899.17 ThiF. (213 aa) |
| | rho | Transcription termination factor; Facilitates transcription termination by a mechanism that involves Rho binding to the nascent RNA, activation of Rho's RNA- dependent ATPase activity, and release of the mRNA from the DNA template. (438 aa) |
| | priA | Primosomal protein N; Involved in the restart of stalled replication forks. Recognizes and binds the arrested nascent DNA chain at stalled replication forks. It can open the DNA duplex, via its helicase activity, and promote assembly of the primosome and loading of the major replicative helicase DnaB onto DNA; Belongs to the helicase family. PriA subfamily. (609 aa) |
| | rnpA | Ribonuclease P, protein component; RNaseP catalyzes the removal of the 5'-leader sequence from pre-tRNA to produce the mature 5'-terminus. It can also cleave other RNA substrates such as 4.5S RNA. The protein component plays an auxiliary but essential role in vivo by binding to the 5'-leader sequence and broadening the substrate specificity of the ribozyme. (110 aa) |
| | mnmE | 5-carboxymethylaminomethyluridine-tRNA synthase MnmEG, GTPase component; Exhibits a very high intrinsic GTPase hydrolysis rate. Involved in the addition of a carboxymethylaminomethyl (cmnm) group at the wobble position (U34) of certain tRNAs, forming tRNA- cmnm(5)s(2)U34; Belongs to the TRAFAC class TrmE-Era-EngA-EngB-Septin-like GTPase superfamily. TrmE GTPase family. (436 aa) |
| | rimM | 16S rRNA processing protein; An accessory protein needed during the final step in the assembly of 30S ribosomal subunit, possibly for assembly of the head region. Probably interacts with S19. Essential for efficient processing of 16S rRNA. May be needed both before and after RbfA during the maturation of 16S rRNA. It has affinity for free ribosomal 30S subunits but not for 70S ribosomes; Belongs to the RimM family. (176 aa) |
| | trmD | tRNA m1G37 methyltransferase; Specifically methylates guanosine-37 in various tRNAs. Belongs to the RNA methyltransferase TrmD family. (227 aa) |
| | alaS | alanyl-tRNA synthetase; Catalyzes the attachment of alanine to tRNA(Ala) in a two- step reaction: alanine is first activated by ATP to form Ala-AMP and then transferred to the acceptor end of tRNA(Ala). Also edits incorrectly charged Ser-tRNA(Ala) and Gly-tRNA(Ala) via its editing domain. (845 aa) |
| | ARR00189.1 | rRNA methyltransferase, TrmH family, group 3; Pfam matches to PF00588.15 SpoU_methylase, and to PF08032.8 SpoU_sub_bind; Belongs to the class IV-like SAM-binding methyltransferase superfamily. RNA methyltransferase TrmH family. (228 aa) |
| | ARR00190.1 | Tetrapyrrole methylase family protein; Pfam match to PF00590.16 TP_methylase. (273 aa) |
| | argS | arginyl-tRNA synthetase; Pfam matches to PF05746.11 DALR_1, and to PF00750.15 tRNA-synt_1d, and to PF03485.12 Arg_tRNA_synt_N. (531 aa) |
| | cas2 | CRISPR/Cas system-associated endoribonuclease Cas2, type II-B/NMENI; CRISPR (clustered regularly interspaced short palindromic repeat), is an adaptive immune system that provides protection against mobile genetic elements (viruses, transposable elements and conjugative plasmids). CRISPR clusters contain sequences complementary to antecedent mobile elements and target invading nucleic acids. CRISPR clusters are transcribed and processed into CRISPR RNA (crRNA). Functions as a ssRNA-specific endoribonuclease. Involved in the integration of spacer DNA into the CRISPR cassette. (89 aa) |
| | nusB | Transcription antitermination protein; Involved in transcription antitermination. Required for transcription of ribosomal RNA (rRNA) genes. Binds specifically to the boxA antiterminator sequence of the ribosomal RNA (rrn) operons. (132 aa) |
| | serS | seryl-tRNA synthetase; Catalyzes the attachment of serine to tRNA(Ser). Is also able to aminoacylate tRNA(Sec) with serine, to form the misacylated tRNA L- seryl-tRNA(Sec), which will be further converted into selenocysteinyl- tRNA(Sec). (414 aa) |
| | trpS | tryptophanyl-tRNA synthetase; Pfam match to PF00579.21 tRNA-synt_1b; Belongs to the class-I aminoacyl-tRNA synthetase family. (322 aa) |
| | rpoD | RNA polymerase sigma70 factor; Sigma factors are initiation factors that promote the attachment of RNA polymerase to specific initiation sites and are then released. This sigma factor is the primary sigma factor during exponential growth. (618 aa) |
| | ARR00357.1 | DUF3310 domain protein; Pfam match to PF11753.4 DUF3310. (78 aa) |
| | ARR00365.1 | Phage-associated DNA primase; Pfam matches to PF01807.16 zf-CHC2, and to PF08706.7 D5_N, and to PF03288.12 Pox_D5, and to PF13155.2 Toprim_2. (954 aa) |
| | nusG | Transcription antitermination protein; Participates in transcription elongation, termination and antitermination. (176 aa) |
| | rpoB | DNA-directed RNA polymerase, beta subunit; DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates. (1379 aa) |
| | rpoC | DNA-directed RNA polymerase, beta' subunit; DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates. (1507 aa) |
| | rsmH | 16S rRNA m4C1402 methyltransferase; Specifically methylates the N4 position of cytidine in position 1402 (C1402) of 16S rRNA. (307 aa) |
| | leuS | leucyl-tRNA synthetase; Pfam matches to PF13603.2 tRNA-synt_1_2, and to PF00133.18 tRNA-synt_1, and to PF09334.7 tRNA-synt_1g; Belongs to the class-I aminoacyl-tRNA synthetase family. (810 aa) |
| | pnp | Polynucleotide phosphorylase; Involved in mRNA degradation. Catalyzes the phosphorolysis of single-stranded polyribonucleotides processively in the 3'- to 5'- direction. (726 aa) |
| | pheS | phenylalanyl-tRNA synthetase, alpha subunit; Pfam matches to PF01409.16 tRNA-synt_2d, and to PF02912.14 Phe_tRNA-synt_N; Belongs to the class-II aminoacyl-tRNA synthetase family. Phe-tRNA synthetase alpha subunit type 1 subfamily. (330 aa) |
| | pheT | phenylalanyl-tRNA synthetase, beta subunit; Pfam matches to PF01588.16 tRNA_bind, and to PF03147.10 FDX-ACB, and to PF03484.11 B5, and to PF03483.13 B3_4; Belongs to the phenylalanyl-tRNA synthetase beta subunit family. Type 1 subfamily. (778 aa) |
| | rluD | 23S rRNA pseudouridine synthase; Responsible for synthesis of pseudouridine from uracil. Belongs to the pseudouridine synthase RluA family. (324 aa) |
| | trmI | tRNA m7G46 methyltransferase; Catalyzes the formation of N(7)-methylguanine at position 46 (m7G46) in tRNA. (391 aa) |
| | rpoZ | DNA-directed RNA polymerase, omega subunit; Promotes RNA polymerase assembly. Latches the N- and C- terminal regions of the beta' subunit thereby facilitating its interaction with the beta and alpha subunits. (72 aa) |
| | tyrS | tyrosyl-tRNA synthetase; Catalyzes the attachment of tyrosine to tRNA(Tyr) in a two- step reaction: tyrosine is first activated by ATP to form Tyr-AMP and then transferred to the acceptor end of tRNA(Tyr); Belongs to the class-I aminoacyl-tRNA synthetase family. TyrS type 2 subfamily. (400 aa) |
| | mnmC | tRNA 5-methylaminomethyl-2-thiouridine biosynthesis bifunctional protein MnmC; Catalyzes the last two steps in the biosynthesis of 5- methylaminomethyl-2-thiouridine (mnm(5)s(2)U) at the wobble position (U34) in tRNA. Catalyzes the FAD-dependent demodification of cmnm(5)s(2)U34 to nm(5)s(2)U34, followed by the transfer of a methyl group from S-adenosyl-L-methionine to nm(5)s(2)U34, to form mnm(5)s(2)U34; In the C-terminal section; belongs to the DAO family. (618 aa) |
| | hisS | histidyl-tRNA synthetase; Pfam matches to PF13393.2 tRNA-synt_His, and to PF03129.16 HGTP_anticodon. (409 aa) |
| | lysS | lysyl-tRNA synthetase; Pfam matches to PF00152.16 tRNA-synt_2, and to PF01336.21 tRNA_anti-codon; Belongs to the class-II aminoacyl-tRNA synthetase family. (498 aa) |
| | rnr | Pfam match to PF00773.15 RNB. (640 aa) |
| | ARR00594.1 | Holliday junction resolvase-like protein (UPF0081 domain); Could be a nuclease involved in processing of the 5'-end of pre-16S rRNA; Belongs to the YqgF HJR family. (123 aa) |
| | ARR00595.1 | tRNA/rRNA cytosine-C5-methylase, NOL1/NOP2/Sun family; Pfam match to PF01189.13 Nol1_Nop2_Fmu; Belongs to the class I-like SAM-binding methyltransferase superfamily. RsmB/NOP family. (288 aa) |
| | trmL | rRNA methylase, SpoU family; Methylates the ribose at the nucleotide 34 wobble position in the two leucyl isoacceptors tRNA(Leu)(CmAA) and tRNA(Leu)(cmnm5UmAA). Catalyzes the methyl transfer from S-adenosyl-L-methionine to the 2'-OH of the wobble nucleotide. (162 aa) |
| | glyS | glycyl-tRNA synthetase, beta chain; Pfam match to PF02092.13 tRNA_synt_2f. (674 aa) |
| | cmoB | tRNA (cmo5U34)-carboxymethyltransferase; Catalyzes carboxymethyl transfer from carboxy-S-adenosyl-L- methionine (Cx-SAM) to 5-hydroxyuridine (ho5U) to form 5- carboxymethoxyuridine (cmo5U) at position 34 in tRNAs. (279 aa) |
| | pseA | Pseudaminic acid biosynthesis protein. (378 aa) |
| | tsaE | N6-L-threonylcarbamoyladenine synthase, TsaE subunit; Pfam match to PF02367.13 TsaE. (130 aa) |
| | rpoN | RNA polymerase sigma54 factor; Sigma factors are initiation factors that promote the attachment of RNA polymerase to specific initiation sites and are then released. (412 aa) |
| | ARR00656.1 | MiaB-like tRNA modifying enzyme; Pfam matches to PF00919.16 UPF0004, and to PF04055.17 Radical_SAM. (414 aa) |
| | csrA | Carbon storage regulator; A translational regulator that binds mRNA to regulate translation initiation and/or mRNA stability. Usually binds in the 5'- UTR at or near the Shine-Dalgarno sequence preventing ribosome-binding, thus repressing translation. Its main target seems to be the major flagellin gene, while its function is anatagonized by FliW. (75 aa) |
| | truB | tRNA pseudouridine 55 synthase; Responsible for synthesis of pseudouridine from uracil-55 in the psi GC loop of transfer RNAs; Belongs to the pseudouridine synthase TruB family. Type 1 subfamily. (275 aa) |
| | trmA | tRNA m5U54 methyltransferase; Dual-specificity methyltransferase that catalyzes the formation of 5-methyluridine at position 54 (m5U54) in all tRNAs, and that of position 341 (m5U341) in tmRNA (transfer-mRNA). (365 aa) |
| | tgt | Queuine tRNA-ribosyltransferase; Catalyzes the base-exchange of a guanine (G) residue with the queuine precursor 7-aminomethyl-7-deazaguanine (PreQ1) at position 34 (anticodon wobble position) in tRNAs with GU(N) anticodons (tRNA-Asp, - Asn, -His and -Tyr). Catalysis occurs through a double-displacement mechanism. The nucleophile active site attacks the C1' of nucleotide 34 to detach the guanine base from the RNA, forming a covalent enzyme-RNA intermediate. The proton acceptor active site deprotonates the incoming PreQ1, allowing a nucleophilic attack on the C1' of the ribose to form t [...] (372 aa) |
| | rluA | 23S rRNA and tRNA pseudouridine synthase; Bifunctional; Pfam match to PF00849.18 PseudoU_synth_2. (254 aa) |
| | glyQ | glycyl-tRNA synthetase, alpha chain; Pfam match to PF02091.11 tRNA-synt_2e. (285 aa) |
| | cmoA | carboxy-S-adenosyl-L-methionine synthase; Catalyzes the conversion of S-adenosyl-L-methionine (SAM) to carboxy-S-adenosyl-L-methionine (Cx-SAM). (234 aa) |
| | tlyA | 16S/23S rRNA (cytidine-2'-O)-methyltransferase; Bifunctional; Pfam matches to PF01728.15 FtsJ, and to PF01479.21 S4. (233 aa) |
| | rppH | RNA pyrophosphohydrolase; Accelerates the degradation of transcripts by removing pyrophosphate from the 5'-end of triphosphorylated RNA, leading to a more labile monophosphorylated state that can stimulate subsequent ribonuclease cleavage; Belongs to the Nudix hydrolase family. (156 aa) |
| | cysS | cysteinyl-tRNA synthetase; Pfam matches to PF01406.15 tRNA-synt_1e, and to PF09190.7 DALR_2; Belongs to the class-I aminoacyl-tRNA synthetase family. (458 aa) |
| | truA | tRNA pseudouridine synthase I; Formation of pseudouridine at positions 38, 39 and 40 in the anticodon stem and loop of transfer RNAs. (253 aa) |
| | metS | methionyl-tRNA synthetase; Is required not only for elongation of protein synthesis but also for the initiation of all mRNA translation through initiator tRNA(fMet) aminoacylation. (630 aa) |
| | gltX1 | glutamyl-tRNA synthetase; Catalyzes the attachment of glutamate to tRNA(Glu) in a two- step reaction: glutamate is first activated by ATP to form Glu-AMP and then transferred to the acceptor end of tRNA(Glu); Belongs to the class-I aminoacyl-tRNA synthetase family. Glutamate--tRNA ligase type 1 subfamily. (429 aa) |
| | ARR00851.1 | RNA methyltransferase, RsmD family; Pfam match to PF03602.11 Cons_hypoth95. (192 aa) |
| | truD | tRNA pseudouridine 13 synthase; Responsible for synthesis of pseudouridine from uracil-13 in transfer RNAs; Belongs to the pseudouridine synthase TruD family. (378 aa) |
| | rny | Ribonuclease Y; Endoribonuclease that initiates mRNA decay. (518 aa) |
| | dnaB | Replicative DNA helicase; Participates in initiation and elongation during chromosome replication; it exhibits DNA-dependent ATPase activity and contains distinct active sites for ATP binding, DNA binding, and interaction with DnaC protein, primase, and other prepriming proteins. Belongs to the helicase family. DnaB subfamily. (465 aa) |
| | proS | prolyl-tRNA synthetase; Catalyzes the attachment of proline to tRNA(Pro) in a two- step reaction: proline is first activated by ATP to form Pro-AMP and then transferred to the acceptor end of tRNA(Pro). As ProRS can inadvertently accommodate and process non-cognate amino acids such as alanine and cysteine, to avoid such errors it has two additional distinct editing activities against alanine. One activity is designated as 'pretransfer' editing and involves the tRNA(Pro)-independent hydrolysis of activated Ala-AMP. The other activity is designated 'posttransfer' editing and involves dea [...] (567 aa) |
| | aspS | aspartyl-tRNA synthetase; Aspartyl-tRNA synthetase with relaxed tRNA specificity since it is able to aspartylate not only its cognate tRNA(Asp) but also tRNA(Asn). Reaction proceeds in two steps: L-aspartate is first activated by ATP to form Asp-AMP and then transferred to the acceptor end of tRNA(Asp/Asn); Belongs to the class-II aminoacyl-tRNA synthetase family. Type 1 subfamily. (598 aa) |
| | ybeY | Metal-dependent hydrolase (UPF0054 domain); Single strand-specific metallo-endoribonuclease involved in late-stage 70S ribosome quality control and in maturation of the 3' terminus of the 16S rRNA. (135 aa) |
| | ileS | isoleucyl-tRNA synthetase; Catalyzes the attachment of isoleucine to tRNA(Ile). As IleRS can inadvertently accommodate and process structurally similar amino acids such as valine, to avoid such errors it has two additional distinct tRNA(Ile)-dependent editing activities. One activity is designated as 'pretransfer' editing and involves the hydrolysis of activated Val-AMP. The other activity is designated 'posttransfer' editing and involves deacylation of mischarged Val-tRNA(Ile). Belongs to the class-I aminoacyl-tRNA synthetase family. IleS type 1 subfamily. (917 aa) |
| | valS | valyl-tRNA synthetase; Catalyzes the attachment of valine to tRNA(Val). As ValRS can inadvertently accommodate and process structurally similar amino acids such as threonine, to avoid such errors, it has a 'posttransfer' editing activity that hydrolyzes mischarged Thr-tRNA(Val) in a tRNA- dependent manner; Belongs to the class-I aminoacyl-tRNA synthetase family. ValS type 1 subfamily. (918 aa) |
| | rimO | Radical SAM methylthiotransferase, MiaB/RimO family; Catalyzes the methylthiolation of an aspartic acid residue of ribosomal protein S12; Belongs to the methylthiotransferase family. RimO subfamily. (435 aa) |
| | tilS | tRNA(Ile)-lysidine synthetase; Ligates lysine onto the cytidine present at position 34 of the AUA codon-specific tRNA(Ile) that contains the anticodon CAU, in an ATP-dependent manner. Cytidine is converted to lysidine, thus changing the amino acid specificity of the tRNA from methionine to isoleucine. (332 aa) |
| | miaB | Isopentenyl-adenosine A37 tRNA methylthiolase; Catalyzes the methylthiolation of N6-(dimethylallyl)adenosine (i(6)A), leading to the formation of 2-methylthio-N6- (dimethylallyl)adenosine (ms(2)i(6)A) at position 37 in tRNAs that read codons beginning with uridine. (436 aa) |
| | nusA | Transcription termination factor; Participates in both transcription termination and antitermination. (367 aa) |
| | ARR01089.1 | Adenine nucleotide alpha hydrolase, possible tRNA 2-thiocytidine biosynthesis protein; Pfam match to PF01171.16 ATP_bind_3; Belongs to the TtcA family. (247 aa) |
| | fmt | 10-formyltetrahydrofolate:L-methionyl-tRNA(fMet) N-formyltransferase; Attaches a formyl group to the free amino group of methionyl- tRNA(fMet). The formyl group appears to play a dual role in the initiator identity of N-formylmethionyl-tRNA by promoting its recognition by IF2 and preventing the misappropriation of this tRNA by the elongation apparatus; Belongs to the Fmt family. (304 aa) |
| | fliA | RNA polymerase sigma28 factor; Pfam matches to PF04545.12 Sigma70_r4, and to PF04542.10 Sigma70_r2; Belongs to the sigma-70 factor family. (234 aa) |
| | mnmA | tRNA U34 2-thiouridylase; Catalyzes the 2-thiolation of uridine at the wobble position (U34) of tRNA, leading to the formation of s(2)U34. (338 aa) |
| | rbfA | Ribosome-binding factor A; One of several proteins that assist in the late maturation steps of the functional core of the 30S ribosomal subunit. Associates with free 30S ribosomal subunits (but not with 30S subunits that are part of 70S ribosomes or polysomes). Required for efficient processing of 16S rRNA. May interact with the 5'-terminal helix region of 16S rRNA. (122 aa) |
| | rsmE | 16S rRNA m3U1498 methyltransferase; Specifically methylates the N3 position of the uracil ring of uridine 1498 (m3U1498) in 16S rRNA. Acts on the fully assembled 30S ribosomal subunit. (218 aa) |
| | miaA | tRNA(i6A37) synthase; Catalyzes the transfer of a dimethylallyl group onto the adenine at position 37 in tRNAs that read codons beginning with uridine, leading to the formation of N6-(dimethylallyl)adenosine (i(6)A); Belongs to the IPP transferase family. (293 aa) |
| | tsaD | N6-L-threonylcarbamoyladenine synthase, TsaD subunit; Required for the formation of a threonylcarbamoyl group on adenosine at position 37 (t(6)A37) in tRNAs that read codons beginning with adenine. Is involved in the transfer of the threonylcarbamoyl moiety of threonylcarbamoyl-AMP (TC-AMP) to the N6 group of A37, together with TsaE and TsaB. TsaD likely plays a direct catalytic role in this reaction; Belongs to the KAE1 / TsaD family. (332 aa) |
| | gltX2 | glutamyl-tRNA synthetase; Catalyzes the attachment of glutamate to tRNA(Glu) in a two- step reaction: glutamate is first activated by ATP to form Glu-AMP and then transferred to the acceptor end of tRNA(Glu); Belongs to the class-I aminoacyl-tRNA synthetase family. Glutamate--tRNA ligase type 1 subfamily. (459 aa) |
| | cca | TRNA nucleotidyltransferase (CCA-adding enzyme); Pfam match to PF01743.16 PolyA_pol; Belongs to the tRNA nucleotidyltransferase/poly(A) polymerase family. (364 aa) |
| | dnaG | DNA primase; RNA polymerase that catalyzes the synthesis of short RNA molecules used as primers for DNA polymerase during DNA replication. (541 aa) |
| | rnhA | Ribonuclease HI; Endonuclease that specifically degrades the RNA of RNA-DNA hybrids. (142 aa) |
| | rnc | Ribonuclease III; Digests double-stranded RNA. Involved in the processing of primary rRNA transcript to yield the immediate precursors to the large and small rRNAs (23S and 16S). Processes some mRNAs, and tRNAs when they are encoded in the rRNA operon. Processes pre-crRNA and tracrRNA of type II CRISPR loci if present in the organism. (222 aa) |
| | ARR01317.1 | N-acetyl sugar amidotransferase. (381 aa) |
| | rpoA | DNA-directed RNA polymerase, alpha subunit; DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates. (332 aa) |
| | rluB | 23S rRNA pseudouridine 2605 synthase; Pfam matches to PF00849.18 PseudoU_synth_2, and to PF01479.21 S4; Belongs to the pseudouridine synthase RsuA family. (254 aa) |
| | rnj | mRNA degradation ribonuclease J1/J2 (metallo-beta-lactamase superfamily); An RNase that has 5'-3' exonuclease and possibly endonuclease activity. Involved in maturation of rRNA and in some organisms also mRNA maturation and/or decay. (653 aa) |
| | rsmA | 16S rRNA (adenine1518-N6/adenine1519-N6)-dimethyltransferase; Specifically dimethylates two adjacent adenosines (A1518 and A1519) in the loop of a conserved hairpin near the 3'-end of 16S rRNA in the 30S particle. May play a critical role in biogenesis of 30S subunits. (269 aa) |
| | rlmN | 23S rRNA m2A2503 methyltransferase / tRNA m2A37 methyltransferase; Specifically methylates position 2 of adenine 2503 in 23S rRNA and position 2 of adenine 37 in tRNAs. m2A2503 modification seems to play a crucial role in the proofreading step occurring at the peptidyl transferase center and thus would serve to optimize ribosomal fidelity; Belongs to the radical SAM superfamily. RlmN family. (358 aa) |
| | ARR01438.1 | 23S rRNA pseudouridine synthase, RluD family; Pfam match to PF00849.18 PseudoU_synth_2. (318 aa) |
