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(-) Description

Title :  THE CRYSTAL STRUCTURE OF A LYSINE 49 PHOSPHOLIPASE A2 FROM THE VENOM OF THE COTTONMOUTH SNAKE AT 2.0 ANGSTROMS RESOLUTION
 
Authors :  D. R. Holland, L. L. Clancy, S. W. Muchmore, T. J. Rydel, H. M. Einspahr, B. C. Finzel, R. L. Heinrikson, K. D. Watenpaugh
Date :  29 Oct 91  (Deposition) - 31 Jan 94  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.00
Chains :  Asym./Biol. Unit :  A
Keywords :  Hydrolase(Carboxylic Esterase) (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  D. R. Holland, L. L. Clancy, S. W. Muchmore, T. J. Ryde, H. M. Einspahr, B. C. Finzel, R. L. Heinrikson, K. D. Watenpaugh
The Crystal Structure Of A Lysine 49 Phospholipase A2 From The Venom Of The Cottonmouth Snake At 2. 0-A Resolution.
J. Biol. Chem. V. 265 17649 1990
PubMed-ID: 2120215
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - PHOSPHOLIPASE A2
    Chains: A
    EC Number: 3.1.1.4
    Engineered: YES
    Organism Common: EASTERN COTTONMOUTH
    Organism Scientific: AGKISTRODON PISCIVORUS PISCIVORUS
    Organism Taxid: 8716
    Strain: PISCIVORUS

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit : A

Summary Information (see also Sequences/Alignments below)

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

Asymmetric/Biological Unit (1, 1)
No.NameCountTypeFull Name
1ANL1Ligand/IonANILINE

(-) Sites  (1, 1)

Asymmetric Unit (1, 1)
No.NameEvidenceResiduesDescription
1AC1SOFTWARECYS A:29 , HIS A:48 , HOH A:224 , HOH A:280BINDING SITE FOR RESIDUE ANL A 134

(-) SS Bonds  (7, 7)

Asymmetric/Biological Unit
No.Residues
1A:27 -A:126
2A:29 -A:45
3A:44 -A:105
4A:50 -A:133
5A:51 -A:98
6A:61 -A:91
7A:84 -A:96

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (2, 2)

Asymmetric/Biological Unit (2, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1PA2_HISPS00118 Phospholipase A2 histidine active site.PA2HB_AGKPI43-50  1A:44-51
2PA2_ASPPS00119 Phospholipase A2 aspartic acid active site.PA2HB_AGKPI85-95  1A:95-105

(-) Exons   (0, 0)

(no "Exon" information available for 1PPA)

(-) Sequences/Alignments

Asymmetric/Biological Unit
   Reformat: Number of residues per line =  ('0' or empty: single-line sequence representation)
  Number of residues per labelling interval =   
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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:121
 aligned with PA2HB_AGKPI | P04361 from UniProtKB/Swiss-Prot  Length:121

    Alignment length:121
                                    10        20        30        40        50        60        70        80        90       100       110       120 
          PA2HB_AGKPI     1 SVLELGKMILQETGKNAITSYGSYGCNCGWGHRGQPKDATDRCCFVHKCCYKKLTDCNHKTDRYSYSWKNKAIICEEKNPCLKEMCECDKAVAICLRENLDTYNKKYKAYFKLKCKKPDTC 121
               SCOP domains d1ppaa_ A: Snake phospholipase A2                                                                                         SCOP domains
               CATH domains 1ppaA00 A:1-133 Phospholipase A2                                                                                          CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhhh.hhhhhhh...............hhhhhhhhhhhhhhh..............ee....ee....hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh............. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------PA2_HIS ----------------------------------PA2_ASP    -------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------- Transcript
                 1ppa A   1 SVLELGKMILQETGKNAITSYGSYGCNCGWGHRGQPKDATDRCCFVHKCCYKKLTDCNHKTDRYSYSWKNKAIICEEKNPCLKEMCECDKAVAICLRENLDTYNKKYKAYFKLKCKKPDTC 133
                                    10   ||   21        31        41        51    ||||69        79    ||  90       100       110       120 || || 132 
                                        14|                                      56|||               84|                                 122| ||     
                                         16                                       59||                86                                  124 ||     
                                                                                   61|                                                      126|     
                                                                                    67                                                       128
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  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: All alpha proteins (14657)

(-) CATH Domains  (1, 1)

Asymmetric/Biological Unit
(-)
Class: Mainly Alpha (13335)

(-) Pfam Domains  (0, 0)

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

(-) Gene Ontology  (4, 4)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (PA2HB_AGKPI | P04361)
molecular function
    GO:0005509    calcium ion binding    Interacting selectively and non-covalently with calcium ions (Ca2+).
    GO:0004623    phospholipase A2 activity    Catalysis of the reaction: phosphatidylcholine + H2O = 1-acylglycerophosphocholine + a carboxylate.
biological process
    GO:0016042    lipid catabolic process    The chemical reactions and pathways resulting in the breakdown of lipids, compounds soluble in an organic solvent but not, or sparingly, in an aqueous solvent.
cellular component
    GO:0005576    extracellular region    The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.

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