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(-) Description

Authors :  C. V. Smith, J. C. Sacchettini
Date :  16 Jun 04  (Deposition) - 19 Oct 04  (Release) - 24 Feb 09  (Revision)
Resolution :  2.20
Chains :  Asym./Biol. Unit :  A
Keywords :  Methyltransferase, Cyclopropane Synthase, Mycolic Acids, Tuberculosis, Sam-Dependent (Keyword Search: [Gene Ontology, PubMed, Web (Google))
Reference :  C. V. Smith, J. C. Sacchettini
Structure Of The Cyclopropane Synthase Mmaa2 From Mycobacterium Tuberculosis
To Be Published
PubMed: search
(for further references see the PDB file header)

(-) Compounds

    EC Number2.1.1.79
    Expression SystemESCHERICHIA COLI BL21(DE3)
    Expression System PlasmidPET30B-MMAA2
    Expression System StrainBL21(DE3)
    Expression System Taxid469008
    Expression System Vector TypePLASMID
    Organism Taxid1773

 Structural Features

(-) Chains, Units

Asymmetric/Biological Unit A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (3, 3)

Asymmetric/Biological Unit (3, 3)
No.NameCountTypeFull Name

(-) Sites  (3, 3)

Asymmetric Unit (3, 3)
1AC1SOFTWARESER A:34 , CYS A:35 , GLY A:137 , GLU A:140 , HIS A:167 , THR A:168 , ILE A:169 , TYR A:232 , 16A A:1901BINDING SITE FOR RESIDUE CO3 A 902
2AC2SOFTWAREVAL A:12 , TYR A:16 , THR A:32 , TYR A:33 , SER A:34 , GLY A:72 , GLY A:74 , THR A:94 , LEU A:95 , SER A:96 , GLN A:99 , GLY A:122 , TRP A:123 , GLU A:124 , ILE A:136 , GLY A:137 , ALA A:138 , HIS A:141 , PHE A:142 , 16A A:1901 , HOH A:1902 , HOH A:1905 , HOH A:1928 , HOH A:1932 , HOH A:1946BINDING SITE FOR RESIDUE SAH A 1900
3AC3SOFTWARETYR A:16 , TYR A:33 , GLY A:137 , GLU A:140 , HIS A:141 , ILE A:169 , ILE A:195 , PHE A:200 , PRO A:205 , TYR A:232 , LEU A:236 , CYS A:269 , CO3 A:902 , SAH A:1900BINDING SITE FOR RESIDUE 16A A 1901

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1TPY)

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (0, 0)

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

(-) Exons   (0, 0)

(no "Exon" information available for 1TPY)

(-) 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:285
 aligned with MMAA2_MYCTU | Q79FX6 from UniProtKB/Swiss-Prot  Length:287

    Alignment length:285
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222       232       242       252       262       272       282     
               SCOP domains d1tpya_ A: Methoxy mycolic acid synthase 2, Mma2                                                                                                                                                                                                                                              SCOP domains
               CATH domains 1tpyA00 A:3-287 Vaccinia Virus protein VP39                                                                                                                                                                                                                                                   CATH domains
               Pfam domains CMAS-1tpyA01 A:3-283                                                                                                                                                                                                                                                                     ---- Pfam domains
         Sec.struct. author .....hhhhhhhhhh.hhhhhhh..................hhhhhhhhhhhhhhh........eeeee....hhhhhhhhhhhh.eeeeee.hhhhhhhhhhhhhh......eeeee.hhhhh.....eeeee.hhhhhh..hhhhhhhhhhhhh....eeeeeeeee.hhhhhhhh....hhhhhhhhhhhhhhh.......hhhhhhhhhhhhh.eeeeeeehhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.eeeeeeeee. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222       232       242       252       262       272       282     

   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, 1)

Asymmetric/Biological Unit

(-) CATH Domains  (1, 1)

Asymmetric/Biological Unit
Class: Alpha Beta (26913)

(-) Pfam Domains  (1, 1)

Asymmetric/Biological Unit

(-) Gene Ontology  (11, 11)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (MMAA2_MYCTU | Q79FX6)
molecular function
    GO:0008825    cyclopropane-fatty-acyl-phospholipid synthase activity    Catalysis of the reaction: S-adenosyl-L-methionine + phospholipid olefinic fatty acid = S-adenosyl-L-homocysteine + phospholipid cyclopropane fatty acid.
    GO:0008168    methyltransferase activity    Catalysis of the transfer of a methyl group to an acceptor molecule.
    GO:0005515    protein binding    Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
    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.
biological process
    GO:0008610    lipid biosynthetic process    The chemical reactions and pathways resulting in the formation of lipids, compounds soluble in an organic solvent but not, or sparingly, in an aqueous solvent.
    GO:0006629    lipid metabolic process    The chemical reactions and pathways involving lipids, compounds soluble in an organic solvent but not, or sparingly, in an aqueous solvent. Includes fatty acids; neutral fats, other fatty-acid esters, and soaps; long-chain (fatty) alcohols and waxes; sphingoids and other long-chain bases; glycolipids, phospholipids and sphingolipids; and carotenes, polyprenols, sterols, terpenes and other isoprenoids.
    GO:0032259    methylation    The process in which a methyl group is covalently attached to a molecule.
    GO:0071768    mycolic acid biosynthetic process    The chemical reactions and pathways resulting in the formation of mycolic acids, beta-hydroxy fatty acids with a long alpha-alkyl side chain.
cellular component
    GO:0005618    cell wall    The rigid or semi-rigid envelope lying outside the cell membrane of plant, fungal, most prokaryotic cells and some protozoan parasites, maintaining their shape and protecting them from osmotic lysis. In plants it is made of cellulose and, often, lignin; in fungi it is composed largely of polysaccharides; in bacteria it is composed of peptidoglycan; in protozoan parasites such as Giardia species, it's made of carbohydrates and proteins.
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
    GO:0005886    plasma membrane    The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.


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