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(-) Description

Title :  COMPLEX OF 7,8-DIHYDRONEOPTERIN ALDOLASE FROM STAPHYLOCOCCUS AUREUS WITH 6-HYDROXYMETHYL-7,8-DIHYDROPTERIN AT 2.2 A RESOLUTION
 
Authors :  M. Hennig, A. D'Arcy, I. C. Hampele, M. G. P. Page, C. H. Oefner, G. Dale
Date :  31 Mar 98  (Deposition) - 20 Apr 99  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.20
Chains :  Asym. Unit :  A
Biol. Unit 1:  A  (8x)
Keywords :  Product Complex, Pterine Binding, Folate Biosynthesis, Antibiotic Target, Beta-Barrel (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  M. Hennig, A. D'Arcy, I. C. Hampele, M. G. Page, C. Oefner, G. E. Dale
Crystal Structure And Reaction Mechanism Of 7, 8-Dihydroneopterin Aldolase From Staphylococcus Aureus.
Nat. Struct. Biol. V. 5 357 1998
PubMed-ID: 9586996  |  Reference-DOI: 10.1038/NSB0598-357

(-) Compounds

Molecule 1 - 7,8-DIHYDRONEOPTERIN ALDOLASE
    Atcc: ATCC 25923
    Chains: A
    Collection: ATCC 25923
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PSADHNA
    Expression System Strain: M15 (PREP4)
    Expression System Taxid: 562
    Expression System Vector Type: PDS56/RBSII
    Gene: DHNA
    Organism Scientific: STAPHYLOCOCCUS AUREUS
    Organism Taxid: 1280
    Synonym: DHNA

 Structural Features

(-) Chains, Units

  1
Asymmetric Unit : A
Biological Unit 1 (8x): A

Summary Information (see also Sequences/Alignments below)

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

Asymmetric Unit (1, 1)
No.NameCountTypeFull Name
1PH21Ligand/Ion2-AMINO-6-HYDROXYMETHYL-7,8-DIHYDRO-3H-PTERIDIN-4-ONE
Biological Unit 1 (1, 8)
No.NameCountTypeFull Name
1PH28Ligand/Ion2-AMINO-6-HYDROXYMETHYL-7,8-DIHYDRO-3H-PTERIDIN-4-ONE

(-) Sites  (1, 1)

Asymmetric Unit (1, 1)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREILE A:5 , ALA A:18 , GLU A:22 , VAL A:52 , HIS A:53 , TYR A:54 , LEU A:72 , LEU A:73 , GLU A:74 , LYS A:100 , HOH A:174 , HOH A:175BINDING SITE FOR RESIDUE PH2 A 122

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

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(-) Exons   (0, 0)

(no "Exon" information available for 2DHN)

(-) Sequences/Alignments

Asymmetric Unit
   Reformat: Number of residues per line =  ('0' or empty: single-line sequence representation)
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SAPs(SNPs) PROSITE motifs Exons
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Chain A from PDB  Type:PROTEIN  Length:121
 aligned with FOLB_STAAU | P56740 from UniProtKB/Swiss-Prot  Length:121

    Alignment length:121
                                    10        20        30        40        50        60        70        80        90       100       110       120 
           FOLB_STAAU     1 MQDTIFLKGMRFYGYHGALSAENEIGQIFKVDVTLKVDLSEAGRTDNVIDTVHYGEVFEEVKSIMEGKAVNLLEHLAERIANRINSQYNRVMETKVRITKENPPIPGHYDGVGIEIVRENK 121
               SCOP domains d2dhna_ A: 7,8-dihydroneopterin aldolase                                                                                  SCOP domains
               CATH domains 2dhnA00 A:1-121  [code=3.30.1130.10, no name defined]                                                                     CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeee..eeeee.....hhhhhh.eeeeeeeeee...hhhhhh..hhh...hhhhhhhhhhhh.......hhhhhhhhhhhhhhh.....eeeeeeee...........eeeeeeee.. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------- Transcript
                 2dhn A   1 MQDTIFLKGMRFYGYHGALSAENEIGQIFKVDVTLKVDLSEAGRTDNVIDTVHYGEVFEEVKSIMEGKAVNLLEHLAERIANRINSQYNRVMETKVRITKENPPIPGHYDGVGIEIVRENK 121
                                    10        20        30        40        50        60        70        80        90       100       110       120
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 Classification and Annotation

(-) SCOP Domains  (1, 1)

Asymmetric Unit
(-)
Class: Alpha and beta proteins (a+b) (23004)

(-) CATH Domains  (1, 1)

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

(-) Pfam Domains  (0, 0)

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

(-) Gene Ontology  (6, 6)

Asymmetric Unit(hide GO term definitions)
Chain A   (FOLB_STAAU | P56740)
molecular function
    GO:0004150    dihydroneopterin aldolase activity    Catalysis of the reaction: 2-amino-4-hydroxy-6-(D-erythro-1,2,3-trihydroxypropyl)-7,8-dihydropteridine = 2-amino-4-hydroxy-6-hydroxymethyl-7,8-dihydropteridine + glycolaldehyde.
    GO:0016853    isomerase activity    Catalysis of the geometric or structural changes within one molecule. Isomerase is the systematic name for any enzyme of EC class 5.
    GO:0016829    lyase activity    Catalysis of the cleavage of C-C, C-O, C-N and other bonds by other means than by hydrolysis or oxidation, or conversely adding a group to a double bond. They differ from other enzymes in that two substrates are involved in one reaction direction, but only one in the other direction. When acting on the single substrate, a molecule is eliminated and this generates either a new double bond or a new ring.
biological process
    GO:0046656    folic acid biosynthetic process    The chemical reactions and pathways resulting in the formation of folic acid, pteroylglutamic acid.
    GO:0006760    folic acid-containing compound metabolic process    The chemical reactions and pathways involving a folic acid-containing compound, i.e. any of a group of heterocyclic compounds based on the pteroic acid skeleton conjugated with one or more L-glutamic acid or L-glutamate units.
    GO:0046654    tetrahydrofolate biosynthetic process    The chemical reactions and pathways resulting in the formation of tetrahydrofolate, 5,6,7,8-tetrahydrofolic acid, a folate derivative bearing additional hydrogens on the pterin group.

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 Related Entries

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UniProtKB/Swiss-Prot
        FOLB_STAAU | P56740: 1dhn 1rri 1rrw 1rry 1rs2 1rs4 1rsd 1rsi 1u68 2nm2 2nm3

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