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(-) Description

Title :  CRYSTAL STRUCTURE OF TRANSCRIPTIONAL COACTIVATOR/PTERIN DEHYDRATASE FROM BRUCELLA MELITENSIS
 
Authors :  Seattle Structural Genomics Center For Infectious Disease (S
Date :  10 Sep 09  (Deposition) - 22 Sep 09  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.10
Chains :  Asym. Unit :  A,B
Biol. Unit 1:  A  (1x)
Biol. Unit 2:  B  (1x)
Keywords :  Lyase, Structural Genomics, Seattle Structural Genomics Center For Infectious Disease, Ssgcid (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  Seattle Structural Genomics Center For Infectious Disease (Ssgcid)
Crystal Structure Of Transcriptional Coactivator/Pterin Dehydratase From Brucella Melitensis
To Be Published
PubMed: search

(-) Compounds

Molecule 1 - PUTATIVE PTERIN-4-ALPHA-CARBINOLAMINE DEHYDRATASE
    Chains: A, B
    EC Number: 4.2.1.96
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PET28-SMT
    Expression System Strain: BL21(DE3)
    Expression System Taxid: 562
    Expression System Vector Type: PLASMID
    Gene: PHHB, BMEI1864
    Organism Scientific: BRUCELLA MELITENSIS
    Organism Taxid: 29459
    Synonym: PHS, 4-ALPHA-HYDROXY-TETRAHYDROPTERIN DEHYDRATASE, PTERIN CARBINOLAMINE DEHYDRATASE, PCD

 Structural Features

(-) Chains, Units

  12
Asymmetric Unit : AB
Biological Unit 1 (1x): A 
Biological Unit 2 (1x):  B

Summary Information (see also Sequences/Alignments below)

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

Asymmetric Unit (1, 2)
No.NameCountTypeFull Name
1EDO2Ligand/Ion1,2-ETHANEDIOL
Biological Unit 1 (1, 1)
No.NameCountTypeFull Name
1EDO1Ligand/Ion1,2-ETHANEDIOL
Biological Unit 2 (1, 1)
No.NameCountTypeFull Name
1EDO1Ligand/Ion1,2-ETHANEDIOL

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREGLU A:61 , PHE A:63 , ASP A:70 , VAL A:71 , THR A:72 , HOH A:192BINDING SITE FOR RESIDUE EDO A 98
2AC2SOFTWAREGLU B:61 , PHE B:63 , ASP B:70 , VAL B:71 , THR B:72 , HOH B:193BINDING SITE FOR RESIDUE EDO B 98

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (0, 0)

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

(-) Exons   (0, 0)

(no "Exon" information available for 3JST)

(-) 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:97
 aligned with PHS_BRUME | P65722 from UniProtKB/Swiss-Prot  Length:97

    Alignment length:97
                                    10        20        30        40        50        60        70        80        90       
             PHS_BRUME    1 MARNRLTESEMNEALRALDGWQKVDGREAITRSFKFKDFSTAFGFMAQAALYAEKLDHHPEWFNAYNRVDVTLATHSENGVTELDIKMARKMNAIAG 97
               SCOP domains d3jsta_ A: automated matches                                                                      SCOP domains
               CATH domains 3jstA00 A:1-97  [code=3.30.1360.20, no name defined]                                              CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ......hhhhhhhhhhh....ee......eeeeee..hhhhhhhhhhhhhhhhhhhh...eeeee..eeeeee........hhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------- Transcript
                  3jst A  1 MARNRLTESEMNEALRALDGWQKVDGREAITRSFKFKDFSTAFGFMAQAALYAEKLDHHPEWFNAYNRVDVTLATHSENGVTELDIKMARKMNAIAG 97
                                    10        20        30        40        50        60        70        80        90       


Chain B from PDB  Type:PROTEIN  Length:94
 aligned with PHS_BRUME | P65722 from UniProtKB/Swiss-Prot  Length:97

    Alignment length:94
                                    13        23        33        43        53        63        73        83        93    
             PHS_BRUME    4 NRLTESEMNEALRALDGWQKVDGREAITRSFKFKDFSTAFGFMAQAALYAEKLDHHPEWFNAYNRVDVTLATHSENGVTELDIKMARKMNAIAG 97
               SCOP domains d3jstb_ B: automated matches                                                                   SCOP domains
               CATH domains 3jstB00 B:4-97  [code=3.30.1360.20, no name defined]                                           CATH domains
           Pfam domains (1) Pterin_4a-3jstB01 B:4-97                                                                       Pfam domains (1)
           Pfam domains (2) Pterin_4a-3jstB02 B:4-97                                                                       Pfam domains (2)
         Sec.struct. author ...hhhhhhhhhhh....ee......eeeeee..hhhhhhhhhhhhhhhhhhhh...eeeee..eeeeee........hhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------- Transcript
                  3jst B  4 NRLTESEMNEALRALDGWQKVDGREAITRSFKFKDFSTAFGFMAQAALYAEKLDHHPEWFNAYNRVDVTLATHSENGVTELDIKMARKMNAIAG 97
                                    13        23        33        43        53        63        73        83        93
   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
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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, 2)

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

(-) CATH Domains  (1, 2)

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

(-) Pfam Domains  (1, 2)

Asymmetric Unit
(-)
Clan: no clan defined [family: Pterin_4a] (7)

(-) Gene Ontology  (3, 3)

Asymmetric Unit(hide GO term definitions)
Chain A,B   (PHS_BRUME | P65722)
molecular function
    GO:0008124    4-alpha-hydroxytetrahydrobiopterin dehydratase activity    Catalysis of the reaction: (6R)-6-(L-erythro-1,2-dihydroxypropyl)-5,6,7,8-tetrahydro-4a-hydroxypterin = (6R)-6-(L-erythro-1,2-dihydroxypropyl)-7,8-dihydro-6H-pterin + H(2)O.
    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:0006729    tetrahydrobiopterin biosynthetic process    The chemical reactions and pathways resulting in the formation of tetrahydrobiopterin, the reduced form of biopterin (2-amino-4-hydroxy-6-(1,2-dihydroxypropyl)-pteridine). It functions as a hydroxylation coenzyme, e.g. in the conversion of phenylalanine to tyrosine.

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