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(-) Description

Title :  MONOMERIC LYS-49 PHOSPHOLIPASE A2 HOMOLOGUE PURIFIED FROM AG
 
Authors :  Q. Liu, Q. Q. Huang, R. G. Zhang, C. M. Weeks, C. Jelsch, M. K. Teng, L. W. Niu
Date :  05 Aug 02  (Deposition) - 21 Aug 02  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  0.85
Chains :  Asym./Biol. Unit :  A
Keywords :  Ys49-Phospholipase A2, Snake Venom, Agkistrodon Acutus, Toxin (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  Q. Liu, Q. Q. Huang, M. K. Teng, C. M. Weeks, C. Jelsch, R. G. Zhang, L. W. Niu
The Crystal Structure Of A Novel, Inactive, Lysine 49 Pla2 From Agkistrodon Acutus Venom: An Ultrahigh Resolution, Ab Initio Structure Determination
J. Biol. Chem. V. 278 41400 2003
PubMed-ID: 12871974  |  Reference-DOI: 10.1074/JBC.M305210200
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - ACUTOHAEMONLYSIN
    Chains: A
    Organism Common: CHINESE MOCCASIN
    Organism Scientific: DEINAGKISTRODON ACUTUS
    Organism Taxid: 36307
    Synonym: PHOSPHOLIPASE A2

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit : A

Summary Information (see also Sequences/Alignments below)

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

Asymmetric/Biological Unit (1, 2)
No.NameCountTypeFull Name
1IPA2Ligand/IonISOPROPYL ALCOHOL

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREPRO A:1017 , HOH A:2032 , HOH A:2104 , HOH A:2204BINDING SITE FOR RESIDUE IPA A 1135
2AC2SOFTWAREGLY A:1006 , VAL A:1018 , TYR A:1119 , HOH A:2075BINDING SITE FOR RESIDUE IPA A 1136

(-) SS Bonds  (7, 7)

Asymmetric/Biological Unit
No.Residues
1A:1027 -A:1125
2A:1029 -A:1045
3A:1044 -A:1105
4A:1050 -A:1134
5A:1051 -A:1098
6A:1061 -A:1091
7A:1084 -A:1096

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1MC2)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1MC2)

(-) PROSITE Motifs  (2, 2)

Asymmetric/Biological Unit (2, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1PA2_HISPS00118 Phospholipase A2 histidine active site.PA2H_DEIAC59-66  1A:1044-1051
2PA2_ASPPS00119 Phospholipase A2 aspartic acid active site.PA2H_DEIAC101-111  1A:1095-1105

(-) Exons   (0, 0)

(no "Exon" information available for 1MC2)

(-) 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:122
 aligned with PA2H_DEIAC | O57385 from UniProtKB/Swiss-Prot  Length:138

    Alignment length:122
                                    26        36        46        56        66        76        86        96       106       116       126       136  
          PA2H_DEIAC     17 SLFELGKMIWQETGKNPVKNYGLYGCNCGVGGRGEPLDATDRCCFVHKCCYKKLTDCDSKKDRYSYKWKNKAIVCGKNQPCMQEMCECDKAFAICLRENLDTYNKSFRYHLKPSCKKTSEQC  138
               SCOP domains d1mc2a_ A: Snake phospholipase A2                                                                                          SCOP domains
               CATH domains 1mc2A00 A:1001-1134 Phospholipase A2                                                                                       CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhhh.hhhhhhh...............hhhhhhhhhhhhhhh.............eeee..eeee...hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhh....... Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------PA2_HIS ----------------------------------PA2_ASP    --------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------- Transcript
                1mc2 A 1001 SLFELGKMIWQETGKNPVKNYGLYGCNCGVGGRGEPLDATDRCCFVHKCCYKKLTDCDSKKDRYSYKWKNKAIVCGKNQPCMQEMCECDKAFAICLRENLDTYNKSFRYHLKPSCKKTSEQC 1134
                                  1010      1020|     1031      1041      1051 ||   1069      1079    ||1090      1100      1110      1120    ||1132  
                                            1020|                           1053|   ||             1084|                                   1125|      
                                             1022                            1057   ||              1086                                    1128      
                                                                                 1061|                                                                
                                                                                  1067
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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 1MC2)

(-) Gene Ontology  (4, 4)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (PA2H_DEIAC | O57385)
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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 Related Entries

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UniProtKB/Swiss-Prot
        PA2H_DEIAC | O57385: 1mg6

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