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(-) Description

Title :  STRUCTURE ANALYSIS OF ADENYLATE CYCLASES FROM TRYPANOSOMA BRUCEI IN THEIR MONOMERIC STATE
 
Authors :  B. Bieger, L. O. Essen
Date :  25 Sep 00  (Deposition) - 28 Feb 01  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.90
Chains :  Asym. Unit :  A
Biol. Unit 1:  A  (2x)
Keywords :  Adenylyl Cyclases, Catalysis, Trypanosomes, Monomer-Dimer, Magnesium, Lyase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  B. Bieger, L. O. Essen
Structural Analysis Of Adenylate Cyclases From Trypanosoma Brucei In Their Monomeric State.
Embo J. V. 20 433 2001
PubMed-ID: 11157750  |  Reference-DOI: 10.1093/EMBOJ/20.3.433
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - RECEPTOR-TYPE ADENYLATE CYCLASE GRESAG 4.3
    Chains: A
    EC Number: 4.6.1.1
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PET28A
    Expression System Taxid: 562
    Expression System Vector Type: PLASMID
    Fragment: CATALYTIC DOMAIN
    Organism Scientific: TRYPANOSOMA BRUCEI
    Organism Taxid: 5691
    Strain: STRAIN 927
    Synonym: ATP PYROPHOSPHATE-LYASE, ADENYLYL CYCLASE

 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
1MG1Ligand/IonMAGNESIUM ION
Biological Unit 1 (0, 0)
No.NameCountTypeFull Name
1MG-1Ligand/IonMAGNESIUM ION

(-) Sites  (1, 1)

Asymmetric Unit (1, 1)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREASP A:894 , ASP A:937 , HOH A:117 , HOH A:131 , HOH A:155BINDING SITE FOR RESIDUE MG A 2001

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1FX4)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1FX4)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1FX4)

(-) PROSITE Motifs  (1, 1)

Asymmetric Unit (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1GUANYLATE_CYCLASE_2PS50125 Guanylate cyclase domain profile.CY43_TRYBB889-1043  1A:889-1043
Biological Unit 1 (1, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1GUANYLATE_CYCLASE_2PS50125 Guanylate cyclase domain profile.CY43_TRYBB889-1043  2A:889-1043

(-) Exons   (0, 0)

(no "Exon" information available for 1FX4)

(-) 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:231
 aligned with CY43_TRYBB | Q99280 from UniProtKB/Swiss-Prot  Length:1229

    Alignment length:231
                                   885       895       905       915       925       935       945       955       965       975       985       995      1005      1015      1025      1035      1045      1055      1065      1075      1085      1095      1105 
          CY43_TRYBB    876 DNDSAPKEPTGPVTLIFTDIESSTALWAAHPDLMPDAVATHHRLIRSLITRYECYEVKTVGDSFMIASKSPFAAVQLAQELQLRFLRLDWETNALDESYREFEEQRAEGECEYTPPTAHMDPEVYSRLWNGLRVRVGIHTGLCDIRYDEVTKGYDYYGRTSNMAARTESVANGGQVLMTHAAYMSLSGEDRNQLDVTTLGATVLRGVPEPVRMYQLNAVPGRNFAALRLDR 1106
               SCOP domains d1fx4a_ A: Receptor-type monomeric adenylyl cyclase                                                                                                                                                                                     SCOP domains
               CATH domains 1fx4A00 A:876-1106 Adenylyl Cyclase, chain A                                                                                                                                                                                            CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ............eeeeeeee.hhhhhhhhh..hhhhhhhhhhhhhhhhhhhh..eeeeee..eeeeee.hhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhh..........hhhhhhhhh....eeeeeeee..eeee......eeeehhhhhhhhhhhhhh....eeeehhhhhhhhhhhhhh..eeeeeee........eeeeee............... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------GUANYLATE_CYCLASE_2  PDB: A:889-1043 UniProt: 889-1043                                                                                                     --------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                1fx4 A  876 DNDSAPKEPTGPVTLIFTDIESSTALWAAHPDLMPDAVATHHRLIRSLITRYECYEVKTVGDSFMIASKSPFAAVQLAQELQLCFLRLDWETNAVDESYREFEEQRAEGECEYTPPTASLDPEVYSRLWNGLRVRVGIHTGLCDIRYDEVTKGYDYYGRTSNMAARTESVANGGQVLMTHAAYMSLSGEDRNQLDVTTLGATVLRGVPEPVRMYQLNAVPGRNFAALRLDR 1106
                                   885       895       905       915       925       935       945       955       965       975       985       995      1005      1015      1025      1035      1045      1055      1065      1075      1085      1095      1105
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    → 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 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 1FX4)

(-) Gene Ontology  (12, 12)

Asymmetric Unit(hide GO term definitions)
Chain A   (CY43_TRYBB | Q99280)
molecular function
    GO:0005524    ATP binding    Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
    GO:0004016    adenylate cyclase activity    Catalysis of the reaction: ATP = 3',5'-cyclic AMP + diphosphate.
    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.
    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.
    GO:0016849    phosphorus-oxygen lyase activity    Catalysis of the cleavage of a phosphorus-oxygen bond by other means than by hydrolysis or oxidation, or conversely adding a group to a double bond.
biological process
    GO:0006171    cAMP biosynthetic process    The chemical reactions and pathways resulting in the formation of the nucleotide cAMP (cyclic AMP, adenosine 3',5'-cyclophosphate).
    GO:0009190    cyclic nucleotide biosynthetic process    The chemical reactions and pathways resulting in the formation of a cyclic nucleotide, a nucleotide in which the phosphate group is in diester linkage to two positions on the sugar residue.
    GO:0035556    intracellular signal transduction    The process in which a signal is passed on to downstream components within the cell, which become activated themselves to further propagate the signal and finally trigger a change in the function or state of the cell.
cellular component
    GO:0016021    integral component of membrane    The component of a membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
    GO:0005622    intracellular    The living contents of a cell; the matter contained within (but not including) the plasma membrane, usually taken to exclude large vacuoles and masses of secretory or ingested material. In eukaryotes it includes the nucleus and cytoplasm.
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.

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(-) Related Entries Specified in the PDB File

1fx2 1FX2 IS THE STRUCTURE OF THE CATALYTIC DOMAIN OF GRESAG4.1, AN ISOZYME OF GRESAG4.3