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(-)Asym./Biol. Unit
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(-) Description

Title :  THIOESTERASE DOMAIN FROM PICROMYCIN POLYKETIDE SYNTHASE, PH 7.6
 
Authors :  S. -C. Tsai, H. Lu, D. E. Cane, C. Khosla, R. M. Stroud
Date :  05 Sep 02  (Deposition) - 04 Feb 03  (Release) - 04 May 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.20
Chains :  Asym./Biol. Unit :  A,B
Keywords :  Thioesterase, Polyketide Synthase, Open Substrate Channel, Alpha-Beta Hydrolase, Transferase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  S. -C. Tsai, H. Lu, D. E. Cane, C. Khosla, R. M. Stroud
Insights Into Channel Architecture And Substrate Specificit From Crystal Structures Of Two Macrocycle-Forming Thioesterases Of Modular Polyketide Synthases
Biochemistry V. 41 12598 2002
PubMed-ID: 12379102  |  Reference-DOI: 10.1021/BI0260177

(-) Compounds

Molecule 1 - POLYKETIDE SYNTHASE IV
    Chains: A, B
    Engineered: YES
    Expression System: ESCHERICHIA COLI BL21(DE3)
    Expression System Plasmid: PET28A
    Expression System Strain: BL21(DE3)
    Expression System Taxid: 469008
    Expression System Vector Type: PLASMID
    Fragment: THIOESTERASE DOMAIN
    Gene: PICAIV
    Organism Scientific: STREPTOMYCES VENEZUELAE
    Organism Taxid: 54571
    Synonym: PICROMYCIN POLYKETIDE SYNTHASE

 Structural Features

(-) Chains, Units

  12
Asymmetric/Biological Unit : AB

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (0, 0)

(no "Ligand,Modified Residues,Ions" information available for 1MN6)

(-) Sites  (0, 0)

(no "Site" information available for 1MN6)

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1MN6)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1MN6)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1MN6)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 1MN6)

(-) Exons   (0, 0)

(no "Exon" information available for 1MN6)

(-) 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:276
 aligned with PIKA4_STRVZ | Q9ZGI2 from UniProtKB/Swiss-Prot  Length:1346

    Alignment length:281
                                  1066      1076      1086      1096      1106      1116      1126      1136      1146      1156      1166      1176      1186      1196      1206      1216      1226      1236      1246      1256      1266      1276      1286      1296      1306      1316      1326      1336 
         PIKA4_STRVZ   1057 AGMFRALFRQAVEDDRYGEFLDVLAEASAFRPQFASPEACSERLDPVLLAGGPTDRAEGRAVLVGCTGTAANGGPHEFLRLSTSFQEERDFLAVPLPGYGTGTGTGTALLPADLDTALDAQARAILRAAGDAPVVLLGHSGGALLAHELAFRLERAHGAPPAGIVLVDPYPPGHQEPIEVWSRQLGEGLFAGELEPMSDARLLAMGRYARFLAGPRPGRSSAPVLLVRASEPLGDWQEERGDWRAHWDLPHTVADVPGDHFTMMRDHAPAVAEAVLSWLDA 1337
               SCOP domains d1mn6a_ A: Picromycin polyketide synthase                                                                                                                                                                                                                                                 SCOP domains
               CATH domains 1mn6A00 A:9-289  [code=3.40.50.1820, no name defined]                                                                                                                                                                                                                                     CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .hhhhhhhhhhhhh.hhhhhhhhhhhhhh...ee............eeee...........eeeee...........hhhhhh.......eeee......-----....ee.hhhhhhhhhhhhhhhhhh...eeeeeehhhhhhhhhhhhhhhhhh.....eeeee.......hhhhhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhh...........eeeeee......................eeeee....hhhhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                1mn6 A    9 AGMFRALFRQAVEDDRYGEFLDVLAEASAFRPQFASPEACSERLDPVLLAGGPTDRAEGRAVLVGCTGTAANGGPHEFLRLSTSFQEERDFLAVPLPGYG-----GTALLPADLDTALDAQARAILRAAGDAPVVLLGHSGGALLAHELAFRLERAHGAPPAGIVLVDPYPPGHQEPIEVWSRQLGEGLFAGELEPMSDARLLAMGRYARFLAGPRPGRSSAPVLLVRASEPLGDWQEERGDWRAHWDLPHTVADVPGDHFTMMRDHAPAVAEAVLSWLDA  289
                                    18        28        38        48        58        68        78        88        98       108     | 118       128       138       148       158       168       178       188       198       208       218       228       238       248       258       268       278       288 
                                                                                                                             108   114                                                                                                                                                                               


Chain B from PDB  Type:PROTEIN  Length:278
 aligned with PIKA4_STRVZ | Q9ZGI2 from UniProtKB/Swiss-Prot  Length:1346

    Alignment length:283
                                  1066      1076      1086      1096      1106      1116      1126      1136      1146      1156      1166      1176      1186      1196      1206      1216      1226      1236      1246      1256      1266      1276      1286      1296      1306      1316      1326      1336   
         PIKA4_STRVZ   1057 AGMFRALFRQAVEDDRYGEFLDVLAEASAFRPQFASPEACSERLDPVLLAGGPTDRAEGRAVLVGCTGTAANGGPHEFLRLSTSFQEERDFLAVPLPGYGTGTGTGTALLPADLDTALDAQARAILRAAGDAPVVLLGHSGGALLAHELAFRLERAHGAPPAGIVLVDPYPPGHQEPIEVWSRQLGEGLFAGELEPMSDARLLAMGRYARFLAGPRPGRSSAPVLLVRASEPLGDWQEERGDWRAHWDLPHTVADVPGDHFTMMRDHAPAVAEAVLSWLDAIE 1339
               SCOP domains d1mn6b_ B: Picromycin polyketide synthase                                                                                                                                                                                                                                                   SCOP domains
               CATH domains 1mn6B00 B:9-291  [code=3.40.50.1820, no name defined]                                                                                                                                                                                                                                       CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .hhhhhhhhhhhhh.hhhhhhhhhhhhhh...ee.hhhhh......eeee...........eeeee.......hhhhhhhhhhhhh....eeee......-----....ee.hhhhhhhhhhhhhhhhhh...eeeeeehhhhhhhhhhhhhhhhh......eeeee.......hhhhhhhhhhhhhhh........hhhhhhhhhhhhhhhhh.........eeeeee.......hhhhh..........eeeee....hhhhh.hhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                1mn6 B    9 AGMFRALFRQAVEDDRYGEFLDVLAEASAFRPQFASPEACSERLDPVLLAGGPTDRAEGRAVLVGCTGTAANGGPHEFLRLSTSFQEERDFLAVPLPGYG-----GTALLPADLDTALDAQARAILRAAGDAPVVLLGHSGGALLAHELAFRLERAHGAPPAGIVLVDPYPPGHQEPIEVWSRQLGEGLFAGELEPMSDARLLAMGRYARFLAGPRPGRSSAPVLLVRASEPLGDWQEERGDWRAHWDLPHTVADVPGDHFTMMRDHAPAVAEAVLSWLDAIE  291
                                    18        28        38        48        58        68        78        88        98       108     | 118       128       138       148       158       168       178       188       198       208       218       228       238       248       258       268       278       288   
                                                                                                                             108   114
   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
(-)
Class: Alpha and beta proteins (a/b) (23833)

(-) CATH Domains  (1, 2)

Asymmetric/Biological Unit
(-)
Class: Alpha Beta (26913)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 1MN6)

(-) Gene Ontology  (8, 8)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A,B   (PIKA4_STRVZ | Q9ZGI2)
molecular function
    GO:0003824    catalytic activity    Catalysis of a biochemical reaction at physiological temperatures. In biologically catalyzed reactions, the reactants are known as substrates, and the catalysts are naturally occurring macromolecular substances known as enzymes. Enzymes possess specific binding sites for substrates, and are usually composed wholly or largely of protein, but RNA that has catalytic activity (ribozyme) is often also regarded as enzymatic.
    GO:0016788    hydrolase activity, acting on ester bonds    Catalysis of the hydrolysis of any ester bond.
    GO:0031177    phosphopantetheine binding    Interacting selectively and non-covalently with phosphopantetheine, the vitamin pantetheine 4'-(dihydrogen phosphate).
    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:0016747    transferase activity, transferring acyl groups other than amino-acyl groups    Catalysis of the transfer of an acyl group, other than amino-acyl, from one compound (donor) to another (acceptor).
biological process
    GO:0009058    biosynthetic process    The chemical reactions and pathways resulting in the formation of substances; typically the energy-requiring part of metabolism in which simpler substances are transformed into more complex ones.
    GO:0033068    macrolide biosynthetic process    The chemical reactions and pathways leading to the formation of macrolides, any of a large group of polyketide compounds that contain a large lactone ring with few or no double bonds and no nitrogen atoms, linked glycosidically to one or more sugar groups. The macrolides include the carbomycins, the erythromycins, oleandomycin, oligomycins, and the spiramycins, and act as antibiotics, mainly against Gram-positive bacteria.
    GO:0008152    metabolic process    The chemical reactions and pathways, including anabolism and catabolism, by which living organisms transform chemical substances. Metabolic processes typically transform small molecules, but also include macromolecular processes such as DNA repair and replication, and protein synthesis and degradation.

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 Related Entries

(-) Entries Sharing at Least One Protein Chain (UniProt ID)

UniProtKB/Swiss-Prot
        PIKA4_STRVZ | Q9ZGI2: 1mna 1mnq 2h7x 2h7y 2hfj 2hfk 3f5h

(-) Related Entries Specified in the PDB File

1kez THIOESTERASE DOMAIN FROM 6-DEOXYERYTHRONOLIDE SYNTHASE (DEBS), PH 7.2
1mna THIOESTERASE DOMAIN FROM PICROMYCIN POLYKETIDE SYNTHASE (PICS), PH 8.0
1mnq THIOESTERASE DOMAIN FROM PICROMYCIN POLYKETIDE SYNTHASE (PICS), PH 8.4
1mo2 THIOESTERASE DOMAIN FROM 6-DEOXYERYTHRONOLIDE SYNTHASE (DEBS), PH 8.5