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(-) Description

Title :  THE CRYSTAL STRUCTURE OF A MALTOSE O-ACETYLTRANSFERASE FROM CLOSTRIDIUM DIFFICILE 630
 
Authors :  K. Tan, M. Gu, S. Peterson, W. F. Anderson, A. Joachimiak, Center For S Genomics Of Infectious Diseases (Csgid)
Date :  07 Jul 11  (Deposition) - 03 Aug 11  (Release) - 03 Aug 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.50
Chains :  Asym. Unit :  A,B
Biol. Unit 1:  A  (3x)
Biol. Unit 2:  B  (3x)
Keywords :  Maltose O-Acetyltransferase, Structural Genomics, The Center For Structural Genomics Of Infectious Diseases, Csgid, Transferase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  K. Tan, M. Gu, S. Peterson, W. F. Anderson, A. Joachimiak
The Crystal Structure Of A Maltose O-Acetyltransferase From Clostridium Difficile 630
To Be Published
PubMed: search

(-) Compounds

Molecule 1 - MALTOSE O-ACETYLTRANSFERASE
    Chains: A, B
    EC Number: 2.3.1.79
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PMCSG7
    Expression System Strain: BL21 (DE3) MAGIC
    Expression System Taxid: 469008
    Expression System Vector Type: PLASMID
    Gene: CD0872, CD630_08720, MAA
    Organism Scientific: CLOSTRIDIUM DIFFICILE
    Organism Taxid: 272563
    Strain: 630

 Structural Features

(-) Chains, Units

  12
Asymmetric Unit : AB
Biological Unit 1 (3x): A 
Biological Unit 2 (3x):  B

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 22)

Asymmetric Unit (2, 22)
No.NameCountTypeFull Name
1GOL16Ligand/IonGLYCEROL
2MSE6Mod. Amino AcidSELENOMETHIONINE
Biological Unit 1 (2, 39)
No.NameCountTypeFull Name
1GOL30Ligand/IonGLYCEROL
2MSE9Mod. Amino AcidSELENOMETHIONINE
Biological Unit 2 (2, 27)
No.NameCountTypeFull Name
1GOL18Ligand/IonGLYCEROL
2MSE9Mod. Amino AcidSELENOMETHIONINE

(-) Sites  (16, 16)

Asymmetric Unit (16, 16)
No.NameEvidenceResiduesDescription
01AC1SOFTWAREGLY A:10 , TYR A:112BINDING SITE FOR RESIDUE GOL A 186
02AC2SOFTWAREALA A:111 , TYR A:112 , TRP A:137 , GLY A:140 , PRO A:146BINDING SITE FOR RESIDUE GOL A 187
03AC3SOFTWARETYR A:112 , SER A:128BINDING SITE FOR RESIDUE GOL A 188
04AC4SOFTWAREASP A:69 , ASN A:83 , LEU A:89 , VAL A:91 , GLU A:125 , HOH A:222 , HOH A:239BINDING SITE FOR RESIDUE GOL A 189
05AC5SOFTWARETYR A:42 , ARG A:45 , ASN A:61 , VAL A:62BINDING SITE FOR RESIDUE GOL A 190
06AC6SOFTWARETHR A:2 , GLU A:5 , LYS B:11 , GLY B:12BINDING SITE FOR RESIDUE GOL A 191
07AC7SOFTWAREASP A:85 , ILE A:87 , ASN A:105BINDING SITE FOR RESIDUE GOL A 192
08AC8SOFTWAREGLU A:3 , LYS A:6 , GLY A:12 , TYR A:14 , ILE A:124BINDING SITE FOR RESIDUE GOL A 193
09AC9SOFTWARETYR A:42BINDING SITE FOR RESIDUE GOL A 194
10BC1SOFTWAREASP A:40 , GLU A:41 , TYR A:42 , GLU A:43 , LYS A:44BINDING SITE FOR RESIDUE GOL A 195
11BC2SOFTWAREALA B:111 , TYR B:112 , TRP B:137 , GLY B:140 , PRO B:146BINDING SITE FOR RESIDUE GOL B 186
12BC3SOFTWAREASP B:69 , ASN B:83 , LEU B:89 , VAL B:91 , GLU B:125 , HOH B:220 , HOH B:234BINDING SITE FOR RESIDUE GOL B 187
13BC4SOFTWARESER B:128BINDING SITE FOR RESIDUE GOL B 188
14BC5SOFTWAREGLU A:5 , ILE B:115 , ASP B:116BINDING SITE FOR RESIDUE GOL B 189
15BC6SOFTWARELYS B:4 , TYR B:72 , HOH B:238BINDING SITE FOR RESIDUE GOL B 190
16BC7SOFTWAREGLY B:147 , LYS B:164 , ASP B:165BINDING SITE FOR RESIDUE GOL B 191

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 3SRT)

(-) Cis Peptide Bonds  (2, 2)

Asymmetric Unit
No.Residues
1Asn A:175 -Pro A:176
2Asn B:175 -Pro B:176

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 3SRT)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 3SRT)

(-) Exons   (0, 0)

(no "Exon" information available for 3SRT)

(-) Sequences/Alignments

Asymmetric 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:186
 aligned with Q18A66_PEPD6 | Q18A66 from UniProtKB/TrEMBL  Length:185

    Alignment length:186
                             1                                                                                                                                                                                        
                             |       9        19        29        39        49        59        69        79        89        99       109       119       129       139       149       159       169       179      
         Q18A66_PEPD6     - -MTEKEKMLSGKGYYANDELLVKEREYCKKLTRLFNNTLEDEYEKREDILRQLFGSVGKQINVEQNIRCDYGYNIHVGENFFANYDCIFLDVCKIEIGDNVMLAPNVQIYTAYHPIDAQLRNSGIEYGSPVKIGDNVWIGGGVIITPGITIGDNVVIGAGSVVTKDIPPNTVAVGNPCRVIKKIEE 185
               SCOP domains d3srta_ A: automated matches                                                                                                                                                               SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author ..hhhhhhhh...ee..hhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhh......eee...eee.....eee...eee...eeee....eee....ee....eee.ee...hhhhhhh.eeee..eee....ee....ee....ee...eee....ee.......eeee....eeeee... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 3srt A   0 AmTEKEKmLSGKGYYANDELLVKEREYCKKLTRLFNNTLEDEYEKREDILRQLFGSVGKQINVEQNIRCDYGYNIHVGENFFANYDCIFLDVCKIEIGDNVmLAPNVQIYTAYHPIDAQLRNSGIEYGSPVKIGDNVWIGGGVIITPGITIGDNVVIGAGSVVTKDIPPNTVAVGNPCRVIKKIEE 185
                             |     | 9        19        29        39        49        59        69        79        89        99 |     109       119       129       139       149       159       169       179      
                             |     7-MSE                                                                                       101-MSE                                                                                
                             1-MSE                                                                                                                                                                                    


Chain B from PDB  Type:PROTEIN  Length:187
 aligned with Q18A66_PEPD6 | Q18A66 from UniProtKB/TrEMBL  Length:185

    Alignment length:187
                              1                                                                                                                                                                                        
                              |      8        18        28        38        48        58        68        78        88        98       108       118       128       138       148       158       168       178       
         Q18A66_PEPD6     - --MTEKEKMLSGKGYYANDELLVKEREYCKKLTRLFNNTLEDEYEKREDILRQLFGSVGKQINVEQNIRCDYGYNIHVGENFFANYDCIFLDVCKIEIGDNVMLAPNVQIYTAYHPIDAQLRNSGIEYGSPVKIGDNVWIGGGVIITPGITIGDNVVIGAGSVVTKDIPPNTVAVGNPCRVIKKIEE 185
               SCOP domains d3srtb_ B: automated matches                                                                                                                                                                SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhhh.......hhhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhh......eee...eee.....eee...eee...eeee....eee....ee....eee.ee...hhhhhhh...ee..eee...eee....ee....ee...eee....ee.......eeee....eeeee... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3srt B  -1 NAmTEKEKmLSGKGYYANDELLVKEREYCKKLTRLFNNTLEDEYEKREDILRQLFGSVGKQINVEQNIRCDYGYNIHVGENFFANYDCIFLDVCKIEIGDNVmLAPNVQIYTAYHPIDAQLRNSGIEYGSPVKIGDNVWIGGGVIITPGITIGDNVVIGAGSVVTKDIPPNTVAVGNPCRVIKKIEE 185
                              |     |8        18        28        38        48        58        68        78        88        98  |    108       118       128       138       148       158       168       178       
                              1-MSE 7-MSE                                                                                       101-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 Unit
(-)
Class: All beta proteins (24004)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 3SRT)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 3SRT)

(-) Gene Ontology  (4, 4)

Asymmetric Unit(hide GO term definitions)
Chain A,B   (Q18A66_PEPD6 | Q18A66)
molecular function
    GO:0016407    acetyltransferase activity    Catalysis of the transfer of an acetyl group to an acceptor molecule.
    GO:0008925    maltose O-acetyltransferase activity    Catalysis of the reaction: acetyl-CoA + maltose = CoA + acetyl-maltose.
    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:0016746    transferase activity, transferring acyl groups    Catalysis of the transfer of an acyl group from one compound (donor) to another (acceptor).

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