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(-) Description

Title :  CRYSTAL STRUCTURE OF A PHOPHOLIPASE A2 MONOMER WITH ISOLEUCINE AT SECOND POSITION
 
Authors :  T. Jabeen, J. Jasti, N. Singh, R. K. Singh, S. Sharma, T. P. Singh
Date :  19 Aug 02  (Deposition) - 10 Jun 03  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.86
Chains :  Asym./Biol. Unit :  A
Keywords :  Phospholipase, Enzyme, Phospholipids, Hydrolase (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  T. Jabeen, J. Jasti, N. Singh, R. K. Singh, S. Sharma, T. P. Singh
Crystal Structure Of A Phospholipase A2 Monomer With Isoleucine At Second Position
To Be Published
PubMed: search
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - PHOSPHOLIPASE A2
    ChainsA
    EC Number3.1.1.4
    Organism ScientificNAJA SAGITTIFERA
    Organism Taxid195058
    SecretionVENOM

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (0, 0)

(no "Ligand,Modified Residues,Ions" information available for 1MH8)

(-) Sites  (0, 0)

(no "Site" information available for 1MH8)

(-) SS Bonds  (7, 7)

Asymmetric/Biological Unit
No.Residues
1A:11 -A:72
2A:27 -A:119
3A:29 -A:45
4A:44 -A:100
5A:51 -A:93
6A:61 -A:86
7A:79 -A:91

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1MH8)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1MH8)

(-) PROSITE Motifs  (2, 2)

Asymmetric/Biological Unit (2, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1PA2_HISPS00118 Phospholipase A2 histidine active site.PA2B1_NAJSG50-57  1A:44-51
2PA2_ASPPS00119 Phospholipase A2 aspartic acid active site.PA2B1_NAJSG96-106  1A:91-100

(-) Exons   (0, 0)

(no "Exon" information available for 1MH8)

(-) 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    
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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:119
 aligned with PA2B1_NAJSG | P60043 from UniProtKB/Swiss-Prot  Length:126

    Alignment length:119
                                    17        27        37        47        57        67        77        87        97       107       117         
          PA2B1_NAJSG     8 NTYQFKNMIQCTVPKRSWWDFADYGCYCGRGGSGTPIDDLDRCCQVHDNCYNSAREQGGCRPKQKTYSYECKAGTLSCSGSNNSCAATVCDCDRLAAICFAGAPYNDNNYNIDLKARCQ 126
               SCOP domains d1mh8a_ A: Snake phospholipase A2                                                                                       SCOP domains
               CATH domains 1mh8A00 A:1-120 Phospholipase A2                                                                                        CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhh...hhhhh.ee...ee........hhhhhhhhhhhhhhhhhh.............eeee..eeee....hhhhhhhhhhhhhhhhhhhhh..hhhhh..hhhhhh. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------PA2_HIS --------------------------------------PA2_ASP    -------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------- Transcript
                 1mh8 A   1 NIYQFKNMIECTVPARSWWDFADYGCYCGGGGSGTPTDDLDRCCQVHDNCYNQAQEITGCRPKWKTYTYQCTQGTLTCKGRNNACAATTCDCDRLAAICFAGAPYNDTNYNIDLKARCQ 120
                                    10    ||  21        31        41        51        61        71        81        91       101       111         
                                         15|                                                                                                       
                                          17                                                                                                       

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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

(-) CATH Domains  (1, 1)

Asymmetric/Biological Unit

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 1MH8)

(-) Gene Ontology  (7, 7)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (PA2B1_NAJSG | P60043)
molecular function
    GO:0005509    calcium ion binding    Interacting selectively and non-covalently with calcium ions (Ca2+).
    GO:0016787    hydrolase activity    Catalysis of the hydrolysis of various bonds, e.g. C-O, C-N, C-C, phosphoric anhydride bonds, etc. Hydrolase is the systematic name for any enzyme of EC class 3.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    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.
    GO:0006629    lipid metabolic process    The chemical reactions and pathways involving lipids, compounds soluble in an organic solvent but not, or sparingly, in an aqueous solvent. Includes fatty acids; neutral fats, other fatty-acid esters, and soaps; long-chain (fatty) alcohols and waxes; sphingoids and other long-chain bases; glycolipids, phospholipids and sphingolipids; and carotenes, polyprenols, sterols, terpenes and other isoprenoids.
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

(-) Entries Sharing at Least One Protein Chain (UniProt ID)

UniProtKB/Swiss-Prot
        PA2B1_NAJSG | P600431mh2 1mh7 1s6b 1xxw 2rd4

(-) Related Entries Specified in the PDB File

1lff 1LFF IS THE CRYSTAL STRUCTURE OF AN ACIDIC PHOSPHOLIPASE A2 FROM NAJA NAJA SAGITTIFERA AT 1.5 RESOLUTION
1lfj 1LFJ IS THE X-RAY CRYSTAL STRUCTURE OF A COMPLEX FORMED BETWEEN TWO HOMOLOGOUS ISOFORMS OF PHOSPHOLIPASE A2 FROM NAJA NAJA SAGITTIFERA: PRINCIPLE OF MOLECULAR ASSOCIATION AND INACTIVATION
1ln8 1LN8 IS THE CRYSTAL STRUCTURE OF A NEW ISOFORM OF PHOSPHOLIPASE A2 FROM NAJA NAJA SAGITTIFERA AT 1.6 RESOLUTION
1mf4 1MF4 IS THE STRUCTURE-BASED DESIGN OF POTENT AND SELECTIVE INHIBITORS OF PHOSPHOLIPASE A2: CRYSTAL STRUCTURE OF THE COMPLEX FORMED BETWEEN PHOSPHOLIPASE A2 FROM NAJA NAJA SAGITTIFERA AND A DESIGNED PEPTIDE INHIBITOR AT 1.9 RESOLUTION