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(-) Description

Title :  CRYSTAL STRUCTURE OF RLMA(I) ENZYME: 23S RRNA N1-G745 METHYLTRANSFERASE (NORTHEAST STRUCTURAL GENOMICS CONSORTIUM TARGET ER19)
 
Authors :  K. Das, T. Acton, G. Montelione, E. Arnold, Northeast Structural Genomics Consortium (Nesg)
Date :  08 May 03  (Deposition) - 30 Mar 04  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.80
Chains :  Asym./Biol. Unit :  A,B
Keywords :  Rlma, Rrma, Methyltransferase, G745, Er19, 23S Rrna, Nesg, Structural Genomics, Psi, Protein Structure Initiative, Northeast Structural Genomics Consortium (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  K. Das, T. Acton, Y. Chiang, L. Shih, E. Arnold, G. T. Montelione
Crystal Structure Of Rlmai: Implications For Understanding The 23S Rrna G745/G748-Methylation At The Macrolide Antibiotic-Binding Site.
Proc. Natl. Acad. Sci. Usa V. 101 4041 2004
PubMed-ID: 14999102  |  Reference-DOI: 10.1073/PNAS.0400189101
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - RIBOSOMAL RNA LARGE SUBUNIT METHYLTRANSFERASE A
    ChainsA, B
    EC Number2.1.1.51
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System Taxid562
    GeneRRMA OR B1822
    Organism ScientificESCHERICHIA COLI
    Organism Taxid562
    SynonymRRNA (GUANINE-N(1)-)-METHYLTRANSFERASE, 23S RRNA N1-G745 METHYLTRANSFERASE

 Structural Features

(-) Chains, Units

  12
Asymmetric/Biological Unit AB

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (4, 23)

Asymmetric/Biological Unit (4, 23)
No.NameCountTypeFull Name
1MSE14Mod. Amino AcidSELENOMETHIONINE
2SAM2Ligand/IonS-ADENOSYLMETHIONINE
3SO45Ligand/IonSULFATE ION
4ZN2Ligand/IonZINC ION

(-) Sites  (9, 9)

Asymmetric Unit (9, 9)
No.NameEvidenceResiduesDescription
1AC1SOFTWARECYS A:5 , CYS A:8 , CYS A:21 , HIS A:25BINDING SITE FOR RESIDUE ZN A 1301
2AC2SOFTWARECYS B:5 , CYS B:8 , CYS B:21 , GLN B:23 , HIS B:25BINDING SITE FOR RESIDUE ZN B 2301
3AC3SOFTWAREARG A:71 , HIS A:101 , HOH A:1451BINDING SITE FOR RESIDUE SO4 A 501
4AC4SOFTWAREARG B:71 , HIS B:101BINDING SITE FOR RESIDUE SO4 B 502
5AC5SOFTWAREARG A:24 , ARG A:182 , SER B:213 , ASN B:261 , HIS B:263BINDING SITE FOR RESIDUE SO4 B 503
6AC6SOFTWAREARG B:59 , ARG B:128BINDING SITE FOR RESIDUE SO4 B 504
7AC7SOFTWAREARG B:221 , HOH B:2414 , HOH B:2423 , HOH B:2424BINDING SITE FOR RESIDUE SO4 B 505
8AC8SOFTWARELEU A:62 , TYR A:67 , GLY A:93 , CYS A:94 , GLY A:95 , GLU A:96 , GLY A:97 , TYR A:98 , TYR A:99 , ILE A:155 , TYR A:156 , THR A:178 , PRO A:179 , HIS A:183 , LEU A:184 , PHE A:260 , HOH A:1434BINDING SITE FOR RESIDUE SAM A 1401
9AC9SOFTWAREARG B:58 , TYR B:67 , LEU B:70 , CYS B:94 , GLY B:95 , GLU B:96 , GLY B:97 , TYR B:98 , TYR B:99 , TYR B:156 , HIS B:183 , LEU B:184 , MSE B:233 , THR B:234BINDING SITE FOR RESIDUE SAM B 2401

(-) SS Bonds  (2, 2)

Asymmetric/Biological Unit
No.Residues
1B:5 -B:21
2B:8 -B:21

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1P91)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1P91)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 1P91)

(-) Exons   (0, 0)

(no "Exon" information available for 1P91)

(-) Sequences/Alignments

Asymmetric/Biological Unit
   Reformat: Number of residues per line =  ('0' or empty: single-line sequence representation)
  Number of residues per labelling interval =   
  UniProt sequence: complete  aligned part    
   Show mapping: SCOP domains CATH domains Pfam domains Secondary structure (by author)
SAPs(SNPs) PROSITE motifs Exons
(details for a mapped element are shown in a popup box when the mouse pointer rests over it)
Chain A from PDB  Type:PROTEIN  Length:268
 aligned with RLMA_ECOLI | P36999 from UniProtKB/Swiss-Prot  Length:269

    Alignment length:268
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261        
           RLMA_ECOLI     2 SFSCPLCHQPLSREKNSYICPQRHQFDMAKEGYVNLLPVQHKRSRDPGDSAEMMQARRAFLDAGHYQPLRDAIVAQLRERLDDKATAVLDIGCGEGYYTHAFADALPEITTFGLDVSKVAIKAAAKRYPQVTFCVASSHRLPFSDTSMDAIIRIYAPCKAEELARVVKPGGWVITATPGPRHLMELKGLIYNEVHLHAPHAEQLEGFTLQQSAELCYPMRLRGDEAVALLQMTPFAWRAKPEVWQTLAAKEVFDCQTDFNIHLWQRSY 269
               SCOP domains d1p91a_ A: rRNA methyltransferase RlmA                                                                                                                                                                                                                                       SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...........eee..eee.....eee......ee..............hhhhhhhhhhhhh...hhhhhhhhhhhhhhhh.....eeeee......hhhhhhhh....eeeeee.hhhhhhhhhhhh...eeee............eeeeeee....hhhhhhhheeeeeeeeeeee....hhhhhh..................eeeeeeeeeeeeeeeehhhhhhhhhh..hhhhhhhhhhhhhhhh.eeeeeeeeeeeeeee.. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1p91 A   2 SFSCPLCHQPLSREKNSYICPQRHQFDmAKEGYVNLLPVQHKRSRDPGDSAEmmQARRAFLDAGHYQPLRDAIVAQLRERLDDKATAVLDIGCGEGYYTHAFADALPEITTFGLDVSKVAIKAAAKRYPQVTFCVASSHRLPFSDTSmDAIIRIYAPCKAEELARVVKPGGWVITATPGPRHLmELKGLIYNEVHLHAPHAEQLEGFTLQQSAELCYPmRLRGDEAVALLQmTPFAWRAKPEVWQTLAAKEVFDCQTDFNIHLWQRSY 269
                                    11        21       |31        41        51  ||    61        71        81        91       101       111       121       131       141       151       161       171       181   |   191       201       211       221       231 |     241       251       261        
                                                      29-MSE                   54-MSE                                                                                        149-MSE                             185-MSE                            220-MSE      233-MSE                                
                                                                                55-MSE                                                                                                                                                                                                                  

Chain B from PDB  Type:PROTEIN  Length:258
 aligned with RLMA_ECOLI | P36999 from UniProtKB/Swiss-Prot  Length:269

    Alignment length:268
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261        
           RLMA_ECOLI     2 SFSCPLCHQPLSREKNSYICPQRHQFDMAKEGYVNLLPVQHKRSRDPGDSAEMMQARRAFLDAGHYQPLRDAIVAQLRERLDDKATAVLDIGCGEGYYTHAFADALPEITTFGLDVSKVAIKAAAKRYPQVTFCVASSHRLPFSDTSMDAIIRIYAPCKAEELARVVKPGGWVITATPGPRHLMELKGLIYNEVHLHAPHAEQLEGFTLQQSAELCYPMRLRGDEAVALLQMTPFAWRAKPEVWQTLAAKEVFDCQTDFNIHLWQRSY 269
               SCOP domains d1p91b_ B: rRNA methyltransferase RlmA                                                                                                                                                                                                                                       SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
           Pfam domains (1) ---------------------------------------------------------------------------------Methyltransf_31-1p91B01 B:83-246                                                                                                                                    ----------------------- Pfam domains (1)
           Pfam domains (2) ---------------------------------------------------------------------------------Methyltransf_31-1p91B02 B:83-246                                                                                                                                    ----------------------- Pfam domains (2)
         Sec.struct. author ...........ee...eee......ee......ee...----------.hhhhhhhhhhhhhh..hhhhhhhhhhhhhhhh.....eeee.......hhhhhhhhh...eeeeee.hhhhhhhhhhhh...eeee............eeeeeee....hhhhhhhheeeeeeeeeeee....hhhhhhhh................eeeeeeeeeeeeeeehhhhhhhhhh...hhhhhhhhhhhhhhhh..eeeeeeeeeeeeee.. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1p91 B   2 SFSCPLCHQPLSREKNSYICPQRHQFDmAKEGYVNLLP----------DSAEmmQARRAFLDAGHYQPLRDAIVAQLRERLDDKATAVLDIGCGEGYYTHAFADALPEITTFGLDVSKVAIKAAAKRYPQVTFCVASSHRLPFSDTSmDAIIRIYAPCKAEELARVVKPGGWVITATPGPRHLmELKGLIYNEVHLHAPHAEQLEGFTLQQSAELCYPmRLRGDEAVALLQmTPFAWRAKPEVWQTLAAKEVFDCQTDFNIHLWQRSY 269
                                    11        21       |31       | -        51  ||    61        71        81        91       101       111       121       131       141       151       161       171       181   |   191       201       211       221       231 |     241       251       261        
                                                      29-MSE    39         50   ||                                                                                           149-MSE                             185-MSE                            220-MSE      233-MSE                                
                                                                               54-MSE                                                                                                                                                                                                                   
                                                                                55-MSE                                                                                                                                                                                                                  

   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
    → Modified Residue (blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
  x → Chemical Group (purple background, 'x', labelled with number + name, e.g. ACE or NH2)
  extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '|'

 Classification and Annotation

(-) SCOP Domains  (1, 2)

Asymmetric/Biological Unit

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 1P91)

(-) Pfam Domains  (1, 2)

Asymmetric/Biological Unit

(-) Gene Ontology  (10, 10)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A,B   (RLMA_ECOLI | P36999)
molecular function
    GO:0052911    23S rRNA (guanine(745)-N(1))-methyltransferase activity    Catalysis of the reaction: S-adenosyl-L-methionine + guanine(745) in 23S rRNA = N(1)-methylguanine(745) in 23S rRNA + S-adenosyl-L-homocysteine.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0008168    methyltransferase activity    Catalysis of the transfer of a methyl group to an acceptor molecule.
    GO:0008989    rRNA (guanine-N1-)-methyltransferase activity    Catalysis of the reaction: S-adenosyl-L-methionine + rRNA = S-adenosyl-L-homocysteine + rRNA containing N1-methylguanine.
    GO:0016740    transferase activity    Catalysis of the transfer of a group, e.g. a methyl group, glycosyl group, acyl group, phosphorus-containing, or other groups, from one compound (generally regarded as the donor) to another compound (generally regarded as the acceptor). Transferase is the systematic name for any enzyme of EC class 2.
    GO:0008270    zinc ion binding    Interacting selectively and non-covalently with zinc (Zn) ions.
biological process
    GO:0032259    methylation    The process in which a methyl group is covalently attached to a molecule.
    GO:0070475    rRNA base methylation    The addition of a methyl group to an atom in the nucleoside base portion of a nucleotide residue in an rRNA molecule.
    GO:0006364    rRNA processing    Any process involved in the conversion of a primary ribosomal RNA (rRNA) transcript into one or more mature rRNA molecules.
cellular component
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.

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 Related Entries

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(-) Related Entries Specified in the PDB File

er19