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(-) Description

Title :  CRYSTAL STRUCTURE OF A BIFUNCTIONAL GLUTATHIONE SYNTHETASE FROM STREPTOCOCCUS AGALACTIAE
 
Authors :  J. Stout, B. Vergauwen, S. N. Savvides
Date :  02 Feb 10  (Deposition) - 13 Apr 11  (Release) - 13 Apr 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.95
Chains :  Asym. Unit :  A
Biol. Unit 1:  A  (2x)
Keywords :  Gamma-Glutamyl Cysteine Ligase Domain, Atp-Grasp Domain, Hybrid Enzyme, Atp-Binding, Glutathione Biosynthesis, Ligase, Magnesium, Manganese, Metal-Binding, Multifunctional Enzyme, Nucleotide-Binding (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  J. Stout, D. De Vos, B. Vergauwen, S. N. Savvides
Structures Of Two Bifunctional Gamma-Glutamate-Cysteine Ligase/Glutathione Synthetases (Gshf) Reveal A Novel Hybrid Atp-Grasp Fold
To Be Published
PubMed: search

(-) Compounds

Molecule 1 - GLUTATHIONE BIOSYNTHESIS BIFUNCTIONAL PROTEIN GSHAB
    Chains: A
    EC Number: 6.3.2.2, 6.3.2.3
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PET11A
    Expression System Strain: BL21(DE3)
    Expression System Taxid: 562
    Expression System Vector Type: PLASMID
    Gene: GSHAB, GSHF, SAG1821
    Organism Scientific: STREPTOCOCCUS AGALACTIAE SEROGROUP V
    Organism Taxid: 216466
    Strain: BAA-811
    Synonym: GAMMA-GCS-GS, GCS-GS, GLUTAMATE-CYSTEINE LIGASE, GAMMA- GLUTAMYLCYSTEINE SYNTHETASE, GAMMA-ECS, GCS, GLUTATHIONE SYNTHETASE, GLUTATHIONE SYNTHASE, GSH SYNTHETASE, GSH-S, GSHASE, GS

 Structural Features

(-) Chains, Units

  1
Asymmetric Unit : A
Biological Unit 1 (2x): A

Summary Information (see also Sequences/Alignments below)

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

Asymmetric Unit (1, 1)
No.NameCountTypeFull Name
1SO41Ligand/IonSULFATE ION
Biological Unit 1 (1, 2)
No.NameCountTypeFull Name
1SO42Ligand/IonSULFATE ION

(-) Sites  (1, 1)

Asymmetric Unit (1, 1)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREARG A:588 , ASN A:659 , ILE A:660 , SER A:661 , HOH A:776BINDING SITE FOR RESIDUE SO4 A 751

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 3LN6)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 3LN6)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 3LN6)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 3LN6)

(-) Exons   (0, 0)

(no "Exon" information available for 3LN6)

(-) 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:743
 aligned with GSHAB_STRA5 | Q8DXM9 from UniProtKB/Swiss-Prot  Length:750

    Alignment length:747
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213       223       233       243       253       263       273       283       293       303       313       323       333       343       353       363       373       383       393       403       413       423       433       443       453       463       473       483       493       503       513       523       533       543       553       563       573       583       593       603       613       623       633       643       653       663       673       683       693       703       713       723       733       743       
          GSHAB_STRA5     4 DRLLQRSHSHLPILQATFGLERESLRIHQPTQRVAQTPHPKTLGSRNYHPYIQTDYSEPQLELITPIAKDSQEAIRFLKAISDVAGRSINHDEYLWPLSMPPKVREEDIQIAQLEDAFEYDYRKYLEKTYGKLIQSISGIHYNLGLGQELLTSLFELSQADNAIDFQNQLYMKLSQNFLRYRWLLTYLYGASPVAEEDFLDQKLNNPVRSLRNSHLGYVNHKDIRISYTSLKDYVNDLENAVKSGQLIAEKEFYSPVRLRGSKACRNYLEKGITYLEFRTFDLNPFSPIGITQETVDTVHLFLLALLWIDSSSHIDQDIKEANRLNDLIALSHPLEKLPNQAPVSDLVDAMQSVIQHFNLSPYYQDLLESVKRQIQSPELTVAGQLLEMIEGLSLETFGQRQGQIYHDYAWEAPYALKGYETMELSTQLLLFDVIQKGVNFEVLDEQDQFLKLWHNSHIEYVKNGNMTSKDNYIVPLAMANKVVTKKILDEKHFPTPFGDEFTDRKEALNYFSQIQDKPIVVKPKSTNFGLGISIFKTSANLASYEKAIDIAFTEDSAILVEEYIEGTEYRFFVLEGDCIAVLLRVAANVVGDGIHTISQLVKLKNQNPLRGYDHRSPLEVIELGEVEQLMLEQQGYTVNSIPPEGTKIELRRNSNISTGGDSIDVTNTMDPTYKQLAAEMAEAMGAWVCGVDLIIPNATQAYSKDKKNATCIELNFNPLMYMHTYCQEGPGQSITPRILAKLFPEL 750
               SCOP domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains Glu_cys_ligase-3ln6A02 A:4-332                                                                                                                                                                                                                                                                                                           ----------------------------------------------------------------------------------------------------------------------------------------------------ATP-grasp_4-3ln6A01 A:481-614                                                                                                         ---------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..hhhhh........eeeeeeeeeeeee....ee.................eee.....eeeee.....hhhhhhhhhhhhhhhhhhhh...eee....................hhhhhhhhhhhhhhhhhhhhhh..eeeeeeehhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhhhh........................................hhhhhhhhhhhh.....--hhhhh...eeee..............eeee.............hhhhhhhhhhhhhhhhhh.--.hhhhhhhhhhhhhhhhhhh..........hhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhh.....hhhhh..hhhhhhhhhhhhhhh.eeee......eeeeee..eeeeee.........hhhhhhh..hhhhhhhhhhh.........ee...hhhhhhhhh....eeeee.........eee....hhhhhhhhhhhhhhhh.eeeeee....eeeeeeee..eeeeeeeee..eee.....hhhhhhhhhh....ee......ee....hhhhhhhhhhh............eee...........eeee.....hhhhhhhhhhhhhhh.....eeeeee..............eeeeee....hhhhhh........hhhhhhhhhh... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3ln6 A   4 DRLLQRSHSHLPILQATFGLERESLRIHQPTQRVAQTPHPKTLGSRNYHPYIQTDYSEPQLELITPIAKDSQEAIRFLKAISDVAGRSINHDEYLWPLSMPPKVREEDIQIAQLEDAFEYDYRKYLEKTYGKLIQSISGIHYNLGLGQELLTSLFELSQADNAIDFQNQLYMKLSQNFLRYRWLLTYLYGASPVAEEDFLDQKLNNPVRSLRNSHLGYVNHKDIRISYTSLKDYVNDLENAVKSGQ--AEKEFYSPVRLRGSKACRNYLEKGITYLEFRTFDLNPFSPIGITQETVDTVHLFLLALLWID--SHIDQDIKEANRLNDLIALSHPLEKLPNQAPVSDLVDAMQSVIQHFNLSPYYQDLLESVKRQIQSPELTVAGQLLEMIEGLSLETFGQRQGQIYHDYAWEAPYALKGYETMELSTQLLLFDVIQKGVNFEVLDEQDQFLKLWHNSHIEYVKNGNMTSKDNYIVPLAMANKVVTKKILDEKHFPTPFGDEFTDRKEALNYFSQIQDKPIVVKPKSTNFGLGISIFKTSANLASYEKAIDIAFTEDSAILVEEYIEGTEYRFFVLEGDCIAVLLRVAANVVGDGIHTISQLVKLKNQNPLRGYDHRSPLEVIELGEVEQLMLEQQGYTVNSIPPEGTKIELRRNSNISTGGDSIDVTNTMDPTYKQLAAEMAEAMGAWVCGVDLIIPNATQAYSKDKKNATCIELNFNPLMYMHTYCQEGPGQSITPRILAKLFPEL 750
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213       223       233       243     | 253       263       273       283       293       303       313  |    323       333       343       353       363       373       383       393       403       413       423       433       443       453       463       473       483       493       503       513       523       533       543       553       563       573       583       593       603       613       623       633       643       653       663       673       683       693       703       713       723       733       743       
                                                                                                                                                                                                                                                                               249  |                                                          313  |                                                                                                                                                                                                                                                                                                                                                                                                                                                  
                                                                                                                                                                                                                                                                                  252                                                             316
   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
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  extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '|'

 Classification and Annotation

(-) SCOP Domains  (0, 0)

(no "SCOP Domain" information available for 3LN6)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 3LN6)

(-) Pfam Domains  (2, 2)

Asymmetric Unit
(-)
Clan: ATP-grasp (83)
(-)
Clan: GCS (23)

(-) Gene Ontology  (11, 11)

Asymmetric Unit(hide GO term definitions)
Chain A   (GSHAB_STRA5 | Q8DXM9)
molecular function
    GO:0005524    ATP binding    Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
    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:0004357    glutamate-cysteine ligase activity    Catalysis of the reaction: L-cysteine + L-glutamate + ATP = L-gamma-glutamyl-L-cysteine + ADP + 2 H(+) + phosphate.
    GO:0004363    glutathione synthase activity    Catalysis of the reaction: L-gamma-glutamyl-L-cysteine + ATP + glycine = ADP + glutathione + 2 H(+) + phosphate.
    GO:0016874    ligase activity    Catalysis of the joining of two substances, or two groups within a single molecule, with the concomitant hydrolysis of the diphosphate bond in ATP or a similar triphosphate.
    GO:0000287    magnesium ion binding    Interacting selectively and non-covalently with magnesium (Mg) ions.
    GO:0030145    manganese ion binding    Interacting selectively and non-covalently with manganese (Mn) ions.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0000166    nucleotide binding    Interacting selectively and non-covalently with a nucleotide, any compound consisting of a nucleoside that is esterified with (ortho)phosphate or an oligophosphate at any hydroxyl group on the ribose or deoxyribose.
biological process
    GO:0006750    glutathione biosynthetic process    The chemical reactions and pathways resulting in the formation of 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.
    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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3ln7