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(-) Description

Title :  STRUCTURES OF AN INSECT EPSILON-CLASS GLUTATHIONE S-TRANSFERASE FROM THE MALARIA VECTOR ANOPHELES GAMBIAE: EVIDENCE FOR HIGH DDT-DETOXIFYING ACTIVITY
 
Authors :  Y. Wang, J. Hemingway, H. Ranson, E. J. Meehan, L. Chen
Date :  02 Oct 06  (Deposition) - 09 Oct 07  (Release) - 09 Dec 08  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.90
Chains :  Asym./Biol. Unit :  A,B
Keywords :  Epsilon-Class Glutathione; S-Transferase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  Y. Wang, L. Qiu, H. Ranson, N. Lumjuan, J. Hemingway, W. N. Setzer, E. J. Meehan, L. Chen
Structure Of An Insect Epsilon Class Glutathione S-Transferase From The Malaria Vector Anopheles Gambiae Provides An Explanation For The High Ddt-Detoxifying Activity
J. Struct. Biol. V. 164 228 2008
PubMed-ID: 18778777  |  Reference-DOI: 10.1016/J.JSB.2008.08.003
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - EPSILON-CLASS GLUTATHIONE S-TRANSFERASE
    Chains: A, B
    EC Number: 2.5.1.18
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PET-SUMO
    Expression System Strain: BL21(DE3)PLYSS
    Expression System Taxid: 562
    Expression System Vector Type: PLASMID
    Gene: AF316636
    Organism Common: AFRICAN MALARIA MOSQUITO
    Organism Scientific: ANOPHELES GAMBIAE
    Organism Taxid: 7165
    Synonym: GLUTATHIONE S-TRANSFERASE E2

 Structural Features

(-) Chains, Units

  12
Asymmetric/Biological Unit : AB

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 2)

Asymmetric/Biological Unit (1, 2)
No.NameCountTypeFull Name
1GTX2Ligand/IonS-HEXYLGLUTATHIONE

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
No.NameEvidenceResiduesDescription
1AC1SOFTWARELEU B:11 , SER B:12 , PRO B:14 , LEU B:36 , HIS B:41 , HIS B:53 , THR B:54 , ILE B:55 , PRO B:56 , GLU B:67 , SER B:68 , ARG B:112 , LEU B:207 , HOH B:306 , HOH B:312 , HOH B:318 , HOH B:364BINDING SITE FOR RESIDUE GTX B 301
2AC2SOFTWARESER A:12 , PRO A:14 , LEU A:36 , HIS A:41 , HIS A:53 , THR A:54 , ILE A:55 , PRO A:56 , GLU A:67 , SER A:68 , PHE A:108 , ARG A:112 , LEU A:119 , HOH A:308 , HOH A:354BINDING SITE FOR RESIDUE GTX A 302

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 2IMK)

(-) Cis Peptide Bonds  (2, 2)

Asymmetric/Biological Unit
No.Residues
1Ile A:55 -Pro A:56
2Ile B:55 -Pro B:56

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 2IMK)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 2IMK)

(-) Exons   (0, 0)

(no "Exon" information available for 2IMK)

(-) 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:220
 aligned with Q7PVS6_ANOGA | Q7PVS6 from UniProtKB/TrEMBL  Length:221

    Alignment length:220
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221
         Q7PVS6_ANOGA     2 SNLVLYTLHLSPPCRAVELTAKALGLELEQKTINLLTGDHLKPEFVKLNPQHTIPVLDDNGTIITESHAIMIYLVTKYGKDDSLYPKDPVKQARVNSALHFESGVLFARMRFIFERILFFGKSDIPEDRVEYVQKSYELLEDTLVDDFVAGPTMTIADFSCISTISSIMGVVPLEQSKHPRIYAWIDRLKQLPYYEEANGGGGTDLGKFVLAKKEENAKA 221
               SCOP domains d2imka1 A:2-86 automated matches                                                     d2imka2 A:87-221 automated matches                                                                                                      SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeeee...hhhhhhhhhhhhhhh..eeeee.hhhhhhhhhhhhhhhh......eeee..eeeehhhhhhhhhhhhhh........hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhh..........hhhhhhhhhhhhhhh.........hhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2imk A   2 SNLVLYTLHLSPPCRAVELTAKALGLELEQKTINLLTGDHLKPEFVKLNPQHTIPVLDDNGTIITESHAIMIYLVTKYGKDDSLYPKDPVKQARVNSALHFESGVLFARMRFIFERILFFGKSDIPEDRVEYVQKSYELLEDTLVDDFVAGPTMTIADFSCISTISSIMGVVPLEQSKHPRIYAWIDRLKQLPYYEEANGGGGTDLGKFVLAKKEENAKA 221
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221


Chain B from PDB  Type:PROTEIN  Length:219
 aligned with Q7PVS6_ANOGA | Q7PVS6 from UniProtKB/TrEMBL  Length:221

    Alignment length:219
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210         
         Q7PVS6_ANOGA     1 MSNLVLYTLHLSPPCRAVELTAKALGLELEQKTINLLTGDHLKPEFVKLNPQHTIPVLDDNGTIITESHAIMIYLVTKYGKDDSLYPKDPVKQARVNSALHFESGVLFARMRFIFERILFFGKSDIPEDRVEYVQKSYELLEDTLVDDFVAGPTMTIADFSCISTISSIMGVVPLEQSKHPRIYAWIDRLKQLPYYEEANGGGGTDLGKFVLAKKEENA 219
               SCOP domains d2imkb1 B:1-86 automated matches                                                      d2imkb2 B:87-219 automated matches                                                                                                    SCOP domains
               CATH domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeee...hhhhhhhhhhhhhh...eeeee.hhhhhhhhhhhhhhhh......eeee..eeeehhhhhhhhhhhhhh........hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh......hhhhhhhhhhhhhhhhhhh..........hhhhhhhhhhhhhhh.........hhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2imk B   1 MSNLVLYTLHLSPPCRAVELTAKALGLELEQKTINLLTGDHLKPEFVKLNPQHTIPVLDDNGTIITESHAIMIYLVTKYGKDDSLYPKDPVKQARVNSALHFESGVLFARMRFIFERILFFGKSDIPEDRVEYVQKSYELLEDTLVDDFVAGPTMTIADFSCISTISSIMGVVPLEQSKHPRIYAWIDRLKQLPYYEEANGGGGTDLGKFVLAKKEENA 219
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210
   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  (2, 4)

Asymmetric/Biological Unit
(-)
Class: All alpha proteins (14657)
(-)
Class: Alpha and beta proteins (a/b) (23833)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 2IMK)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 2IMK)

(-) Gene Ontology  (5, 5)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A,B   (Q7PVS6_ANOGA | Q7PVS6)
molecular function
    GO:0004602    glutathione peroxidase activity    Catalysis of the reaction: 2 glutathione + hydrogen peroxide = oxidized glutathione + 2 H2O.
    GO:0004364    glutathione transferase activity    Catalysis of the reaction: R-X + glutathione = H-X + R-S-glutathione. R may be an aliphatic, aromatic or heterocyclic group; X may be a sulfate, nitrile or halide group.
biological process
    GO:0098869    cellular oxidant detoxification    Any process carried out at the cellular level that reduces or removes the toxicity superoxide radicals or hydrogen peroxide.
    GO:0006749    glutathione metabolic process    The chemical reactions and pathways involving glutathione, the tripeptide glutamylcysteinylglycine, which acts as a coenzyme for some enzymes and as an antioxidant in the protection of sulfhydryl groups in enzymes and other proteins; it has a specific role in the reduction of hydrogen peroxide (H2O2) and oxidized ascorbate, and it participates in the gamma-glutamyl cycle.
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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        Q7PVS6_ANOGA | Q7PVS6: 2il3 2imi

(-) Related Entries Specified in the PDB File

2il3 2imi