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(-) Description

Title :  TWO CRYSTAL STRUCTURES OF THE CYTOPLASMIC MOLYBDATE-BINDING PROTEIN MODG SUGGEST A NOVEL COOPERATIVE BINDING MECHANISM AND PROVIDE INSIGHTS INTO LIGAND-BINDING SPECIFICITY. PEG-GROWN FORM WITH MOLYBDATE BOUND
 
Authors :  L. Delarbre, C. E. M. Stevenson, D. J. White, L. A. Mitchenall, R. N. Pau, D. M. Lawson
Date :  13 Mar 01  (Deposition) - 11 May 01  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.65
Chains :  Asym. Unit :  A,B
Biol. Unit 1:  A  (3x)
Biol. Unit 2:  B  (3x)
Keywords :  Binding Protein, Molybdate Homeostasis (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  L. Delarbre, C. E. M. Stevenson, D. J. White, L. A. Mitchenall, R. N. Pau, D. M. Lawson
Two Crystal Structures Of The Cytoplasmic Molybdate-Binding Protein Modg Suggest A Novel Cooperative Binding Mechanism And Provide Insights Into Ligand-Binding Specificity
J. Mol. Biol. V. 308 1063 2001
PubMed-ID: 11352591  |  Reference-DOI: 10.1006/JMBI.2001.4636

(-) Compounds

Molecule 1 - MOLYBDENUM-BINDING-PROTEIN
    Cellular Location: CYTOPLASM
    Chains: A, B
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Gene: MODG
    Expression System Strain: BL21
    Expression System Taxid: 511693
    Expression System Vector: PDJW373
    Expression System Vector Type: PLASMID
    Gene: MODG
    Organism Scientific: AZOTOBACTER VINELANDII
    Organism Taxid: 354
    Plasmid: PDJW373
    Strain: E162
    Synonym: MODG

 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  (1, 8)

Asymmetric Unit (1, 8)
No.NameCountTypeFull Name
1MOO8Ligand/IonMOLYBDATE ION
Biological Unit 1 (1, 12)
No.NameCountTypeFull Name
1MOO12Ligand/IonMOLYBDATE ION
Biological Unit 2 (1, 12)
No.NameCountTypeFull Name
1MOO12Ligand/IonMOLYBDATE ION

(-) Sites  (8, 8)

Asymmetric Unit (8, 8)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREALA A:92 , VAL A:93 , ASN A:94BINDING SITE FOR RESIDUE MOO A1142
2AC2SOFTWAREALA A:20 , VAL A:21 , ASN A:22BINDING SITE FOR RESIDUE MOO A1143
3AC3SOFTWARESER A:4 , ALA A:5 , ARG A:6 , LYS A:60 , ALA A:61 , PRO A:62 , VAL A:111 , THR A:112 , ALA A:115 , HOH A:2023BINDING SITE FOR RESIDUE MOO A1144
4AC4SOFTWAREVAL A:39 , THR A:40 , SER A:43 , SER A:76 , ALA A:77 , ARG A:78 , LYS A:132 , ALA A:133 , HOH A:2036BINDING SITE FOR RESIDUE MOO A1145
5AC5SOFTWAREALA B:20 , VAL B:21 , ASN B:22BINDING SITE FOR RESIDUE MOO B1142
6AC6SOFTWAREALA B:92 , VAL B:93 , ASN B:94BINDING SITE FOR RESIDUE MOO B1143
7AC7SOFTWARESER B:4 , ALA B:5 , ARG B:6 , LYS B:60 , ALA B:61 , PRO B:62 , VAL B:111 , THR B:112 , ALA B:115 , HOH B:2032BINDING SITE FOR RESIDUE MOO B1144
8AC8SOFTWAREVAL B:39 , THR B:40 , SER B:43 , SER B:76 , ALA B:77 , ARG B:78 , LYS B:132 , ALA B:133 , HOH B:2043BINDING SITE FOR RESIDUE MOO B1145

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1H9M)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1H9M)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1H9M)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 1H9M)

(-) Exons   (0, 0)

(no "Exon" information available for 1H9M)

(-) 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:141
 aligned with Q44529_AZOVI | Q44529 from UniProtKB/TrEMBL  Length:142

    Alignment length:141
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140 
         Q44529_AZOVI     1 MKISARNVFKGTVSALKEGAVNAEVDILLGGGDKLAAVVTLESARSLQLAAGKEVVAVVKAPWVLLMTDSSGYRLSARNILTGTVKTIETGAVNAEVTLALQGGTEITSMVTKEAVAELGLKPGASASAVIKASNVILGVP 141
               SCOP domains d1h9ma1 A:1-73 Cytoplasmic molybdate-binding protein ModG                d1h9ma2 A:74-141 Cytoplasmic molybdate-binding protein ModG          SCOP domains
               CATH domains 1h9mA02 A:1-61,A:132-141  [code=2.40.50.100, no name defined]1h9mA01 A:62-131  [code=2.40.50.100, no name defined]                 1h9mA02    CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ......eeeeeeeeeeee...eeeeeeee....eeeeeeehhhhhhh......eeeeeehhhhheee...........eeeeeeeeeeee...eeeeeeee....eeeeeeehhhhhhh......eeeeeehhhhheee.. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1h9m A   1 MKISARNVFKGTVSALKEGAVNAEVDILLGGGDKLAAVVTLESARSLQLAAGKEVVAVVKAPWVLLMTDSSGYRLSARNILTGTVKTIETGAVNAEVTLALQGGTEITSMVTKEAVAELGLKPGASASAVIKASNVILGVP 141
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140 


Chain B from PDB  Type:PROTEIN  Length:141
 aligned with Q44529_AZOVI | Q44529 from UniProtKB/TrEMBL  Length:142

    Alignment length:141
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140 
         Q44529_AZOVI     1 MKISARNVFKGTVSALKEGAVNAEVDILLGGGDKLAAVVTLESARSLQLAAGKEVVAVVKAPWVLLMTDSSGYRLSARNILTGTVKTIETGAVNAEVTLALQGGTEITSMVTKEAVAELGLKPGASASAVIKASNVILGVP 141
               SCOP domains d1h9mb1 B:1-73 Cytoplasmic molybdate-binding protein ModG                d1h9mb2 B:74-141 Cytoplasmic molybdate-binding protein ModG          SCOP domains
               CATH domains 1h9mB02 B:1-61,B:132-141  [code=2.40.50.100, no name defined]1h9mB01 B:62-131  [code=2.40.50.100, no name defined]                 1h9mB02    CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ......eeeeeeeeeeee...eeeeeeee....eeeeeeehhhhhhh......eeeeeehhhhheee...........eeeeeeeeeeee...eeeeeee.....eeeeeeehhhhhhh......eeeeeehhhhheee.. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1h9m B   1 MKISARNVFKGTVSALKEGAVNAEVDILLGGGDKLAAVVTLESARSLQLAAGKEVVAVVKAPWVLLMTDSSGYRLSARNILTGTVKTIETGAVNAEVTLALQGGTEITSMVTKEAVAELGLKPGASASAVIKASNVILGVP 141
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140
   Legend:   → Mismatch (orange background)
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  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, 4)

Asymmetric Unit
(-)
Class: All beta proteins (24004)

(-) CATH Domains  (1, 4)

Asymmetric Unit
(-)
Class: Mainly Beta (13760)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 1H9M)

(-) Gene Ontology  (2, 2)

Asymmetric Unit(hide GO term definitions)
Chain A,B   (Q44529_AZOVI | Q44529)
molecular function
    GO:0030151    molybdenum ion binding    Interacting selectively and non-covalently with molybdenum (Mo) ions.
biological process
    GO:0006810    transport    The directed movement of substances (such as macromolecules, small molecules, ions) or cellular components (such as complexes and organelles) into, out of or within a cell, or between cells, or within a multicellular organism by means of some agent such as a transporter, pore or motor protein.

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 Related Entries

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

UniProtKB/TrEMBL
        Q44529_AZOVI | Q44529: 1h9j 1h9k

(-) Related Entries Specified in the PDB File

1atg AZOTOBACTER VINELANDII PERIPLASMIC MOLYBDATE- BINDINGPROTEIN
1h9j TWO CRYSTAL STRUCTURES OF THE CYTOPLASMIC MOLYBDATE-BINDING PROTEIN MODG SUGGEST A NOVEL COOPERATIVE BINDING MECHANISM AND PROVIDE INSIGHTS INTO LIGAND-BINDING SPECIFICITY.
1h9k TWO CRYSTAL STRUCTURES OF THE CYTOPLASMIC MOLYBDATE-BINDING PROTEIN MODG SUGGEST A NOVEL COOPERATIVE BINDING MECHANISM AND PROVIDE INSIGHTS INTO LIGAND-BINDING SPECIFICITY. PHOSPHATE-GROWN FORM WITH TUNGSTATE AND PHOSPHATE BOUND