RsmB/NOP family class I SAM-dependent RNA methyltransferase similar to Homo sapiens mitochondrial tRNA (cytosine(34)-C(5))-methyltransferase, which mediates methylation of cytosine to 5-methylcytosine (m5C) at position 34 of mt-tRNA(Met), and to 5-methylcytosine rRNA methyltransferase NSUN4 involved in mitochondrial ribosome small subunit (SSU) maturation by methylation of mitochondrial 12S rRNA
16S rRNA C967 or C1407 C5-methylase, RsmB/RsmF family [Translation, ribosomal structure and ...
131-417
1.50e-43
16S rRNA C967 or C1407 C5-methylase, RsmB/RsmF family [Translation, ribosomal structure and biogenesis]; 16S rRNA C967 or C1407 C5-methylase, RsmB/RsmF family is part of the Pathway/BioSystem: 16S rRNA modification
The actual alignment was detected with superfamily member COG0144:
Pssm-ID: 439914 [Multi-domain] Cd Length: 441 Bit Score: 158.63 E-value: 1.50e-43
16S rRNA C967 or C1407 C5-methylase, RsmB/RsmF family [Translation, ribosomal structure and ...
131-417
1.50e-43
16S rRNA C967 or C1407 C5-methylase, RsmB/RsmF family [Translation, ribosomal structure and biogenesis]; 16S rRNA C967 or C1407 C5-methylase, RsmB/RsmF family is part of the Pathway/BioSystem: 16S rRNA modification
Pssm-ID: 439914 [Multi-domain] Cd Length: 441 Bit Score: 158.63 E-value: 1.50e-43
16S rRNA (cytosine(967)-C(5))-methyltransferase; This protein is also known as sun protein. ...
121-419
8.70e-25
16S rRNA (cytosine(967)-C(5))-methyltransferase; This protein is also known as sun protein. The reading frame was originally interpreted as two reading frames, fmu and fmv. The recombinant protein from E. coli was shown to methylate only C967 of small subunit (16S) ribosomal RNA and to produce only m5C at that position. The seed alignment is built from bacterial sequences only. Eukaryotic homologs include Nop2, a protein required for processing pre-rRNA, that is likely also a rRNA methyltransferase, although the fine specificity may differ. Cutoff scores are set to avoid treating archaeal and eukaroytic homologs automatically as functionally equivalent, although they may have very similar roles. [Protein synthesis, tRNA and rRNA base modification]
Pssm-ID: 273141 [Multi-domain] Cd Length: 426 Bit Score: 106.11 E-value: 8.70e-25
16S rRNA methyltransferase RsmB/F; This is the catalytic core of this SAM-dependent 16S ...
219-419
8.16e-22
16S rRNA methyltransferase RsmB/F; This is the catalytic core of this SAM-dependent 16S ribosomal methyltransferase RsmB/F enzyme. There is a catalytic cysteine residue at 180 in UniProtKB:Q5SII2, with another highly conserved cysteine at residue 230. It methylates the C(5) position of cytosine 2870 (m5C2870) in 25S rRNA.
Pssm-ID: 426109 [Multi-domain] Cd Length: 199 Bit Score: 92.87 E-value: 8.16e-22
S-adenosylmethionine-dependent methyltransferases (SAM or AdoMet-MTase), class I; ...
218-299
6.79e-04
S-adenosylmethionine-dependent methyltransferases (SAM or AdoMet-MTase), class I; AdoMet-MTases are enzymes that use S-adenosyl-L-methionine (SAM or AdoMet) as a substrate for methyltransfer, creating the product S-adenosyl-L-homocysteine (AdoHcy). There are at least five structurally distinct families of AdoMet-MTases, class I being the largest and most diverse. Within this class enzymes can be classified by different substrate specificities (small molecules, lipids, nucleic acids, etc.) and different target atoms for methylation (nitrogen, oxygen, carbon, sulfur, etc.).
Pssm-ID: 100107 [Multi-domain] Cd Length: 107 Bit Score: 38.95 E-value: 6.79e-04
16S rRNA C967 or C1407 C5-methylase, RsmB/RsmF family [Translation, ribosomal structure and ...
131-417
1.50e-43
16S rRNA C967 or C1407 C5-methylase, RsmB/RsmF family [Translation, ribosomal structure and biogenesis]; 16S rRNA C967 or C1407 C5-methylase, RsmB/RsmF family is part of the Pathway/BioSystem: 16S rRNA modification
Pssm-ID: 439914 [Multi-domain] Cd Length: 441 Bit Score: 158.63 E-value: 1.50e-43
16S rRNA (cytosine(967)-C(5))-methyltransferase; This protein is also known as sun protein. ...
121-419
8.70e-25
16S rRNA (cytosine(967)-C(5))-methyltransferase; This protein is also known as sun protein. The reading frame was originally interpreted as two reading frames, fmu and fmv. The recombinant protein from E. coli was shown to methylate only C967 of small subunit (16S) ribosomal RNA and to produce only m5C at that position. The seed alignment is built from bacterial sequences only. Eukaryotic homologs include Nop2, a protein required for processing pre-rRNA, that is likely also a rRNA methyltransferase, although the fine specificity may differ. Cutoff scores are set to avoid treating archaeal and eukaroytic homologs automatically as functionally equivalent, although they may have very similar roles. [Protein synthesis, tRNA and rRNA base modification]
Pssm-ID: 273141 [Multi-domain] Cd Length: 426 Bit Score: 106.11 E-value: 8.70e-25
16S rRNA methyltransferase RsmB/F; This is the catalytic core of this SAM-dependent 16S ...
219-419
8.16e-22
16S rRNA methyltransferase RsmB/F; This is the catalytic core of this SAM-dependent 16S ribosomal methyltransferase RsmB/F enzyme. There is a catalytic cysteine residue at 180 in UniProtKB:Q5SII2, with another highly conserved cysteine at residue 230. It methylates the C(5) position of cytosine 2870 (m5C2870) in 25S rRNA.
Pssm-ID: 426109 [Multi-domain] Cd Length: 199 Bit Score: 92.87 E-value: 8.16e-22
S-adenosylmethionine-dependent methyltransferases (SAM or AdoMet-MTase), class I; ...
218-299
6.79e-04
S-adenosylmethionine-dependent methyltransferases (SAM or AdoMet-MTase), class I; AdoMet-MTases are enzymes that use S-adenosyl-L-methionine (SAM or AdoMet) as a substrate for methyltransfer, creating the product S-adenosyl-L-homocysteine (AdoHcy). There are at least five structurally distinct families of AdoMet-MTases, class I being the largest and most diverse. Within this class enzymes can be classified by different substrate specificities (small molecules, lipids, nucleic acids, etc.) and different target atoms for methylation (nitrogen, oxygen, carbon, sulfur, etc.).
Pssm-ID: 100107 [Multi-domain] Cd Length: 107 Bit Score: 38.95 E-value: 6.79e-04
methyltransferase, FkbM family; Members of this family are characterized by two well-conserved ...
219-271
1.91e-03
methyltransferase, FkbM family; Members of this family are characterized by two well-conserved short regions separated by a variable in both sequence and length. The first of the two regions is found in a large number of proteins outside this subfamily, a number of which have been characterized as methyltransferases. One member of the present family, FkbM, was shown to be required for a specific methylation in the biosynthesis of the immunosuppressant FK506 in Streptomyces strain MA6548.
Pssm-ID: 273628 Cd Length: 143 Bit Score: 38.45 E-value: 1.91e-03
Database: CDSEARCH/cdd Low complexity filter: no Composition Based Adjustment: yes E-value threshold: 0.01
References:
Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
Marchler-Bauer A et al. (2017), "CDD/SPARCLE: functional classification of proteins via subfamily domain architectures.", Nucleic Acids Res.45(D)200-3.
of the residues that compose this conserved feature have been mapped to the query sequence.
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