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(-) Description

Title :  STRUCTURE OF SUHB: INOSITOL MONOPHOSPHATASE AND EXTRAGENIC SUPPRESSOR FROM E. COLI
 
Authors :  Y. Wang, K. A. Stieglitz, M. Bubunenko, D. Court, B. Stec, M. F. Roberts
Date :  27 Jun 07  (Deposition) - 24 Jul 07  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.90
Chains :  Asym./Biol. Unit :  A
Keywords :  Impase Extragenic Suppressor, Dimerization, Hydrolase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  Y. Wang, K. A. Stieglitz, M. Bubunenko, D. Court, B. Stec, M. F. Roberts
The Structure Of Suhb R184A And Its Implication For The Functional Properties Of Suhb In Cells
To Be Published
PubMed: search
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - INOSITOL-1-MONOPHOSPHATASE
    Chains: A
    EC Number: 3.1.3.25
    Engineered: YES
    Expression System: ESCHERICHIA COLI BL21
    Expression System Plasmid: PET23A(+)
    Expression System Strain: BL21
    Expression System Taxid: 511693
    Expression System Vector Type: PLASMID
    Gene: SUHB, SSYA
    Mutation: YES
    Organism Scientific: ESCHERICHIA COLI
    Organism Taxid: 562
    Synonym: IMPASE, INOSITOL-1-PHOSPHATASE, I-1-PASE

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit : A

Summary Information (see also Sequences/Alignments below)

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

Asymmetric/Biological Unit (2, 2)
No.NameCountTypeFull Name
1ACT1Ligand/IonACETATE ION
2EEE1Ligand/IonETHYL ACETATE

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREGLY A:88 , THR A:89 , LYS A:160 , EEE A:376 , HOH A:1041BINDING SITE FOR RESIDUE ACT A 375
2AC2SOFTWAREASP A:87 , THR A:89 , GLY A:186 , SER A:187 , ALA A:188 , ACT A:375 , HOH A:1007 , HOH A:1013 , HOH A:1027BINDING SITE FOR RESIDUE EEE A 376

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 2QFL)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (2, 2)

Asymmetric/Biological Unit (2, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1IMP_1PS00629 Inositol monophosphatase family signature 1.SUHB_ECOLI81-94  1A:81-94
2IMP_2PS00630 Inositol monophosphatase family signature 2.SUHB_ECOLI211-225  1A:211-225

(-) Exons   (0, 0)

(no "Exon" information available for 2QFL)

(-) 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:262
 aligned with SUHB_ECOLI | P0ADG4 from UniProtKB/Swiss-Prot  Length:267

    Alignment length:262
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260  
           SUHB_ECOLI     1 MHPMLNIAVRAARKAGNLIAKNYETPDAVEASQKGSNDFVTNVDKAAEAVIIDTIRKSYPQHTIITEESGELEGTDQDVQWVIDPLDGTTNFIKRLPHFAVSIAVRIKGRTEVAVVYDPMRNELFTATRGQGAQLNGYRLRGSTARDLDGTILATGFPFKAKQYATTYINIVGKLFNECADFRRTGSAALDLAYVAAGRVDGFFEIGLRPWDFAAGELLVREAGGIVSDFTGGHNYMLTGNIVAGNPRVVKAMLANMRDELS 262
               SCOP domains d2qfla_ A: automated matches                                                                                                                                                                                                                                           SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains Inositol_P-2qflA01 A:1-262                                                                                                                                                                                                                                             Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhhhhhhhhhhh............hhhhhhhhhhhhhhhhhhhhhhh..eeeee...eee...eeeeeeeeeeeehhhhhhhh....eeeeeeee..eeeeeeeee....eeeeee....eee..ee...........eeeee.....hhhhhhhhhhhhhhhhh..eeeee..hhhhhhhhhhh....eeee...hhhhhhhhhhhhhhh..eee......hhhhhh.eeeehhhhhhhhhhh...... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------IMP_1         --------------------------------------------------------------------------------------------------------------------IMP_2          ------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2qfl A   1 MHPMLNIAVRAARKAGNLIAKNYETPDAVEASQKGSNDFVTNVDKAAEAVIIDTIRKSYPQHTIITEESGELEGTDQDVQWVIDPLDGTTNFIKRLPHFAVSIAVRIKGRTEVAVVYDPMRNELFTATRGQGAQLNGYRLRGSTARDLDGTILATGFPFKAKQYATTYINIVGKLFNECADFRATGSAALDLAYVAAGRVDGFFEIGLRPWDFAAGELLVREAGGIVSDFTGGHNYMLTGNIVAGNPRVVKAMLANMRDELS 262
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260
   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
(-)
Class: Multi-domain proteins (alpha and beta) (2421)

(-) CATH Domains  (0, 0)

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

(-) Pfam Domains  (1, 1)

Asymmetric/Biological Unit
(-)
Clan: Phospoesterase (42)

(-) Gene Ontology  (15, 15)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (SUHB_ECOLI | P0ADG4)
molecular function
    GO:0047954    glycerol-2-phosphatase activity    Catalysis of the reaction: glycerol 2-phosphate + H(2)O = glycerol + phosphate.
    GO:0016787    hydrolase activity    Catalysis of the hydrolysis of various bonds, e.g. C-O, C-N, C-C, phosphoric anhydride bonds, etc. Hydrolase is the systematic name for any enzyme of EC class 3.
    GO:0008934    inositol monophosphate 1-phosphatase activity    Catalysis of the reaction: myo-inositol 1-phosphate + H2O = myo-inositol + phosphate.
    GO:0052832    inositol monophosphate 3-phosphatase activity    Catalysis of the reaction: myo-inositol 3-phosphate + H2O = myo-inositol + phosphate.
    GO:0052833    inositol monophosphate 4-phosphatase activity    Catalysis of the reaction: myo-inositol 4-phosphate + H2O = myo-inositol + phosphate.
    GO:0052834    inositol monophosphate phosphatase activity    Catalysis of the reaction: myo-inositol phosphate + H2O = myo-inositol + phosphate.
    GO:0031403    lithium ion binding    Interacting selectively and non-covalently with lithium ions (Li+).
    GO:0000287    magnesium ion binding    Interacting selectively and non-covalently with magnesium (Mg) ions.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
biological process
    GO:0006020    inositol metabolic process    The chemical reactions and pathways involving inositol, 1,2,3,4,5,6-cyclohexanehexol, a growth factor for animals and microorganisms.
    GO:0046855    inositol phosphate dephosphorylation    The process of removing a phosphate group from any mono- or polyphosphorylated inositol.
    GO:0046854    phosphatidylinositol phosphorylation    The process of introducing one or more phosphate groups into a phosphatidylinositol, any glycerophosphoinositol having one phosphatidyl group esterified to one of the hydroxy groups of inositol.
    GO:0007165    signal transduction    The cellular process in which a signal is conveyed to trigger a change in the activity or state of a cell. Signal transduction begins with reception of a signal (e.g. a ligand binding to a receptor or receptor activation by a stimulus such as light), or for signal transduction in the absence of ligand, signal-withdrawal or the activity of a constitutively active receptor. Signal transduction ends with regulation of a downstream cellular process, e.g. regulation of transcription or regulation of a metabolic process. Signal transduction covers signaling from receptors located on the surface of the cell and signaling via molecules located within the cell. For signaling between cells, signal transduction is restricted to events at and within the receiving cell.
cellular component
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
    GO:0005829    cytosol    The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.

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 Related Entries

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(-) Related Entries Specified in the PDB File

1awb HUMAN IMPA1
1g0h MJ IMPASE
1lbv AF IMPASE
2bji BOVINE IMPASE
2czi HUMAN IMPA2
2p3n TM IMPASE