ID   ERMS_STRFR              Reviewed;         319 AA.
AC   P45439;
DT   01-NOV-1995, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1995, sequence version 1.
DT   03-AUG-2022, entry version 79.
DE   RecName: Full=rRNA adenine N-6-methyltransferase;
DE            EC=2.1.1.184;
DE   AltName: Full=Erythromycin resistance protein;
DE   AltName: Full=Macrolide-lincosamide-streptogramin B resistance protein;
GN   Name=ermSF; Synonyms=tlrA;
OS   Streptomyces fradiae (Streptomyces roseoflavus).
OC   Bacteria; Actinobacteria; Streptomycetales; Streptomycetaceae;
OC   Streptomyces.
OX   NCBI_TaxID=1906;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=NRRL 2338;
RX   PubMed=3127381; DOI=10.1128/jb.170.4.1800-1811.1988;
RA   Kamimiya S., Weisblum B.;
RT   "Translational attenuation control of ermSF, an inducible resistance
RT   determinant encoding rRNA N-methyltransferase from Streptomyces fradiae.";
RL   J. Bacteriol. 170:1800-1811(1988).
CC   -!- FUNCTION: This protein produces a dimethylation of the adenine residue
CC       at position 2085 in 23S rRNA, resulting in reduced affinity between
CC       ribosomes and macrolide-lincosamide-streptogramin B antibiotics.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=adenosine(2085) in 23S rRNA + 2 S-adenosyl-L-methionine = 2
CC         H(+) + N(6)-dimethyladenosine(2085) in 23S rRNA + 2 S-adenosyl-L-
CC         homocysteine; Xref=Rhea:RHEA:42784, Rhea:RHEA-COMP:10237, Rhea:RHEA-
CC         COMP:10238, ChEBI:CHEBI:15378, ChEBI:CHEBI:57856, ChEBI:CHEBI:59789,
CC         ChEBI:CHEBI:74411, ChEBI:CHEBI:74493; EC=2.1.1.184;
CC   -!- SIMILARITY: Belongs to the class I-like SAM-binding methyltransferase
CC       superfamily. rRNA adenine N(6)-methyltransferase family.
CC       {ECO:0000255|PROSITE-ProRule:PRU01026}.
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; M19269; AAA26742.1; -; Genomic_DNA.
DR   PIR; A27741; A27741.
DR   RefSeq; WP_063844819.1; NG_047837.1.
DR   AlphaFoldDB; P45439; -.
DR   SMR; P45439; -.
DR   STRING; 1906.SFRA_22030; -.
DR   KEGG; ag:AAA26742; -.
DR   eggNOG; COG0030; Bacteria.
DR   SABIO-RK; P45439; -.
DR   GO; GO:0052910; F:23S rRNA (adenine(2085)-N(6))-dimethyltransferase activity; IEA:UniProtKB-EC.
DR   GO; GO:0003723; F:RNA binding; IEA:UniProtKB-KW.
DR   GO; GO:0000179; F:rRNA (adenine-N6,N6-)-dimethyltransferase activity; IEA:InterPro.
DR   GO; GO:0046677; P:response to antibiotic; IEA:UniProtKB-KW.
DR   Gene3D; 3.40.50.150; -; 1.
DR   InterPro; IPR001737; KsgA/Erm.
DR   InterPro; IPR020596; rRNA_Ade_Mease_Trfase_CS.
DR   InterPro; IPR020598; rRNA_Ade_methylase_Trfase_N.
DR   InterPro; IPR029063; SAM-dependent_MTases_sf.
DR   PANTHER; PTHR11727; PTHR11727; 1.
DR   Pfam; PF00398; RrnaAD; 1.
DR   SMART; SM00650; rADc; 1.
DR   SUPFAM; SSF53335; SSF53335; 1.
DR   PROSITE; PS01131; RRNA_A_DIMETH; 1.
DR   PROSITE; PS51689; SAM_RNA_A_N6_MT; 1.
PE   3: Inferred from homology;
KW   Antibiotic resistance; Methyltransferase; RNA-binding;
KW   S-adenosyl-L-methionine; Transferase.
FT   CHAIN           1..319
FT                   /note="rRNA adenine N-6-methyltransferase"
FT                   /id="PRO_0000101686"
FT   REGION          1..59
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        8..22
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        29..44
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   BINDING         66
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01026"
FT   BINDING         68
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01026"
FT   BINDING         93
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01026"
FT   BINDING         114
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01026"
FT   BINDING         141
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01026"
FT   BINDING         157
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01026"
SQ   SEQUENCE   319 AA;  35528 MW;  3A543FA222CFB7DB CRC64;
     MARAPRSPHP ARSRETSRAH PPYGTRADRA PGRGRDRDRS PDSPGNTSSR DGGRSPDRAR
     RELSQNFLAR RAVAERVARL VRPAPGGLLL EVGAGRGVLT EALAPYCGRL VAHEIDPRLL
     PALRDRFGGP HHAHVRISGG DFLAAPVPRE PFALAGNIPY SRTAGIVDWA LRARTLTSAT
     FVTQLEYARK RTGDYGRWSL LTVRTWPRHE WRLLGRVSRR EFRPVPRVDS GILRIERRER
     PLLPSAALGD YHRMVELGFS GVGGSLYASL RRAHRAGPLD AAFRAARLDR SVVVAYVTPE
     QWLTVFRTLR PVRSRPAGR