1KVY - JenaLib

Title :   CARBOXYLIC ESTER HYDROLASE, SINGLE MUTANT D49E COORDINATED TO CALCIUM

Authors :   M. Sundaralingam

Date :   29 Apr 98 (Deposition) - 18 Nov 98 (Release) - 24 Feb 09 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   1.90

Chains :   Asym. Unit : A
Biol. Unit 1: A  (2x)

Keywords :   Hydrolase, Enzyme, Carboxylic Ester Hydrolase, Mutant (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   K. Sekar, R. Biswas, Y. Li, M. Tsai, M. Sundaralingam
Structures Of The Catalytic Site Mutants D99A And H48Q And The Calcium-Loop Mutant D49E Of Phospholipase A2.
Acta Crystallogr. , Sect. D V. 55 443 1999
PubMed-ID: 10089353 | Reference-DOI: 10.1107/S0907444998013699
(for further references see the PDB file header)

Compounds

Molecule 1 - PHOSPHOLIPASE A2
	Cell Line	:	BL21
	Chains	:	A
	EC Number	:	3.1.1.4
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Gene	:	MATURE PLA2
	Expression System Plasmid	:	PTO-A2MBL21
	Expression System Strain	:	BL21 (DE3) PLYSS
	Expression System Taxid	:	562
	Gene	:	MATURE PLA2
	Mutation	:	YES
	Organ	:	PANCREAS
	Organism Common	:	CATTLE
	Organism Scientific	:	BOS TAURUS
	Organism Taxid	:	9913

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (1, 1)

Sites (1, 1)

SS Bonds (7, 7)

Cis Peptide Bonds (0, 0)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (2, 2)

Asymmetric Unit (2, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	PA2_HIS	PS00118	Phospholipase A2 histidine active site.	PA21B_BOVIN	66-73	1	A:44-51
2	PA2_ASP	PS00119	Phospholipase A2 aspartic acid active site.	PA21B_BOVIN	117-127	1	A:95-105

Biological Unit 1 (2, 4)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	PA2_HIS	PS00118	Phospholipase A2 histidine active site.	PA21B_BOVIN	66-73	2	A:44-51
2	PA2_ASP	PS00119	Phospholipase A2 aspartic acid active site.	PA21B_BOVIN	117-127	2	A:95-105

Exons (0, 0)

Sequences/Alignments

Asymmetric Unit

Reformat:	Number of residues per line = ('0' or empty: single-line sequence representation)
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	UniProt sequence: complete aligned part

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Chain A from PDB  Type:PROTEIN  Length:123
 aligned with PA21B_BOVIN | P00593 from UniProtKB/Swiss-Prot  Length:145

    Alignment length:123
                                    32        42        52        62        72        82        92       102       112       122       132       142   
          PA21B_BOVIN    23 ALWQFNGMIKCKIPSSEPLLDFNNYGCYCGLGGSGTPVDDLDRCCQTHDNCYKQAKKLDSCKVLVDNPYTNNYSYSCSNNEITCSSENNACEAFICNCDRNAAICFSKVPYNKEHKNLDKKNC 145
               SCOP domains d1kvya_ A: Phospholipase A2                                                                                                 SCOP domains
               CATH domains 1kvyA00 A:1-123 Phospholipase A2                                                                                            CATH domains
               Pfam domains Phospholip_A2_1-1kvyA01 A:1-123                                                                                             Pfam domains
         Sec.struct. author .hhhhhhhhhhh.....hhhh..................hhhhhhhhhhhhhhhhhh.................eeee..eeee.....hhhhhhhhhhhhhhhhhhh....hhh........ Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------PA2_HIS -------------------------------------------PA2_ASP    ------------------ PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------- Transcript
                 1kvy A   1 ALWQFNGMIKCKIPSSEPLLDFNNYGCYCGLGGSGTPVDDLDRCCQTHENCYKQAKKLDSCKVLVDNPYTNNYSYSCSNNEITCSSENNACEAFICNCDRNAAICFSKVPYNKEHKNLDKKNC 123
                                    10        20        30        40        50        60        70        80        90       100       110       120

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Classification and Annotation

SCOP Domains (1, 1)

CATH Domains (1, 1)

Pfam Domains (1, 1)

Gene Ontology (7, 7)

Asymmetric Unit(hide GO term definitions)

Chain A (PA21B_BOVIN | P00593)

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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