1SXK - JenaLib

Title :   CRYSTAL STRUCTURE OF A COMPLEX FORMED BETWEEN PHOSPHOLIPASE A2 AND A NON-SPECIFIC ANTI-INFLAMMATORY AMINO SALICYLIC ACID AT 1.2 A RESOLUTION

Authors :   N. Singh, S. Bilgrami, P. Kaur, S. Sharma, T. P. Singh

Date :   31 Mar 04 (Deposition) - 13 Apr 04 (Release) - 24 Feb 09 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   1.21

Chains :   Asym./Biol. Unit : A

Keywords :   Complex, Phospholipase A2, Amino Salicylic Acid, Daboia Russeli Pulchella, Toxin (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   N. Singh, S. Bilgrami, P. Kaur, S. Sharma, T. P. Singh
Crystal Structure Of A Complex Formed Between Phospholipase A2 And A Non-Specific Anti-Inflammatory Amino Salicylic Acid At 1. 2 A Resolution
To Be Published
PubMed: search
(for further references see the PDB file header)

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (2, 5)

Sites (5, 5)

Asymmetric Unit (5, 5)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	SER A:114 , LYS A:115 , LYS A:131 , HOH A:443	BINDING SITE FOR RESIDUE SO4 A 301
2	AC2	SOFTWARE	ASN A:54 , PRO A:56 , ARG A:94 , HOH A:323 , HOH A:413 , HOH A:433 , HOH A:499	BINDING SITE FOR RESIDUE SO4 A 302
3	AC3	SOFTWARE	ASP A:39 , ARG A:43 , HOH A:470 , HOH A:480 , HOH A:486	BINDING SITE FOR RESIDUE SO4 A 303
4	AC4	SOFTWARE	GLU A:4 , ARG A:72 , LYS A:74 , HOH A:361 , HOH A:378 , HOH A:388 , HOH A:402 , HOH A:500	BINDING SITE FOR RESIDUE SO4 A 304
5	AC5	SOFTWARE	ILE A:19 , PRO A:20 , LYS A:74 , GLN A:108 , ASN A:111 , HOH A:339 , HOH A:358 , HOH A:400 , HOH A:435 , HOH A:472	BINDING SITE FOR RESIDUE BHA A 251

SS Bonds (7, 7)

Cis Peptide Bonds (1, 1)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (2, 2)

Exons (0, 0)

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:121
 aligned with PA2B8_DABRR | P59071 from UniProtKB/Swiss-Prot  Length:121

    Alignment length:121
                                    10        20        30        40        50        60        70        80        90       100       110       120 
          PA2B8_DABRR     1 SLLEFGKMILEETGKLAIPSYSSYGCYCGWGGKGTPKDATDRCCFVHDCCYGNLPDCNPKSDRYKYKRVNGAIVCEKGTSCENRICECDKAAAICFRQNLNTYSKKYMLYPDFLCKGELKC 121
               SCOP domains d1sxka_ A: Snake phospholipase A2                                                                                         SCOP domains
               CATH domains 1sxkA00 A:1-133 Phospholipase A2                                                                                          CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhhh.hhhhhh................hhhhhhhhhhhhhhhh............eeee..eeee...hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhh...... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------PA2_HIS ----------------------------------PA2_ASP    -------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------- Transcript
                 1sxk A   1 SLLEFGKMILEETGKLAIPSYSSYGCYCGWGGKGTPKDATDRCCFVHDCCYGNLPDCNPKSDRYKYKRVNGAIVCEKGTSCENRICECDKAAAICFRQNLNTYSKKYMLYPDFLCKGELKC 133
                                    10   ||   21        31        41        51    ||||69        79      ||90       100       110       120 ||    131|
                                        14|                                      56|||                 86|                               122|    131|
                                         16                                       59||                  88                                124     133
                                                                                   61|                                                               
                                                                                    67

Legend:		→ Mismatch	(orange background)
	-	→ Gap	(green background, '-', border residues have a numbering label)
		→ 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)

CATH Domains (1, 1)

Pfam Domains (0, 0)

Gene Ontology (8, 8)

Asymmetric/Biological Unit(hide GO term definitions)

Chain A (PA2B8_DABRR | P59071)

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.
	GO:0072556	other organism presynaptic membrane	A presynaptic membrane that is part of another organism, i.e. a secondary organism with which the first organism is interacting. A presynaptic membrane is specialized area of membrane of the axon terminal that faces the plasma membrane of the neuron or muscle fiber with which the axon terminal establishes a synaptic junction; many synaptic junctions exhibit structural presynaptic characteristics, such as conical, electron-dense internal protrusions, that distinguish it from the remainder of the axon plasma membrane.

Visualization

Interactive Views

Asymmetric/Biological Unit
	Complete Structure
		Jena3D(integrated viewing of ligand, site, SAP, PROSITE, SCOP information)
		WebMol \| AstexViewer[tm]@PDBe (Java Applets, require no local installation except for Java; loading may be slow)
		STRAP (Java WebStart application, automatic local installation, requires Java; full application with system access!)
		RasMol (require local installation)
		Molscript (VRML) (requires installation of a VRML viewer; select preferred view via VRML and generate a mono or stereo PDF format file)

	Ligands, Modified Residues, Ions
		BHA	[ RasMol \| Jena3D ]	+environment [ RasMol \| Jena3D ]
		SO4	[ RasMol \| Jena3D ]	+environment [ RasMol \| Jena3D ]

	Sites
		AC1	[ RasMol ]	+environment [ RasMol ]
		AC2	[ RasMol ]	+environment [ RasMol ]
		AC3	[ RasMol ]	+environment [ RasMol ]
		AC4	[ RasMol ]	+environment [ RasMol ]
		AC5	[ RasMol ]	+environment [ RasMol ]

	Cis Peptide Bonds
		Ile A:19 - Pro A:20	[ RasMol ]

Still Images

Databases and Analysis Tools

Databases

Access by PDB/NDB ID
	1sxk
		Family and Domain Information	:	ProDom \| SYSTERS
		General Structural Information	:	GlycoscienceDB \| MMDB \| NDB \| OCA \| PDB \| PDBe \| PDBj \| PDBsum \| PDBWiki \| PQS \| PROTEOPEDIA
		Orientation in Membranes	:	OPM
		Protein Surface	:	SURFACE
		Secondary Structure	:	DSSP (structure derived) \| HSSP (homology derived)
		Structural Genomics	:	GeneCensus
		Structural Neighbours	:	CE \| VAST
		Structure Classification	:	CATH \| Dali \| SCOP
		Validation and Original Data	:	BMRB Data View \| BMRB Restraints Grid \| EDS \| PROCHECK \| RECOORD \| WHAT_CHECK

Access by UniProt ID/Accession number
	PA2B8_DABRR \| P59071
		Comparative Protein Structure Models	:	ModBase
		Genomic Information	:	Ensembl
		Protein-protein Interaction	:	DIP
		Sequence, Family and Domain Information	:	InterPro \| Pfam \| SMART \| UniProtKB/SwissProt

Access by Enzyme Classificator (EC Number)
	3.1.1.4
		General Enzyme Information	:	BRENDA \| EC-PDB \| Enzyme \| IntEnz
		Pathway	:	KEGG \| MetaCyc

Access by Disease Identifier (MIM ID)
	(no 'MIM ID' available)
		Disease Information	:	OMIM

Access by GenAge ID
	(no 'GenAge ID' available)
		Age Related Information	:	GenAge

Analysis Tools

Access by PDB/NDB ID
		Domain Information	:	XDom
		Interatomic Contacts of Structural Units	:	CSU
		Ligand-protein Contacts	:	LPC
		Protein Cavities	:	castP
		Sequence and Secondary Structure	:	PDBCartoon
		Structure Alignment	:	STRAP(Java WebStart application, automatic local installation, requires Java; full application with system access!)
		Structure and Sequence Browser	:	STING

Access by UniProt ID/Accession number
	PA2B8_DABRR \| P59071
		Protein Disorder Prediction	:	DisEMBL \| FoldIndex \| GLOBPLOT (for more information see DisProt)

Description