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Title :   CRYSTAL STRUCTURE OF PSEUDOMONAS AERUGINOSA ISOCHORISMATE-PYRUVATE LYASE K42A MUTANT IN COMPLEX WITH SALICYLATE AND PYRUVATE

Authors :   Q. Luo, A. L. Lamb

Date :   14 May 09 (Deposition) - 30 Jun 09 (Release) - 30 Jun 09 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.50

Chains :   Asym./Biol. Unit : A,B

Keywords :   Siderophore Biosynthesis, Pyochelin, Isochorismate-Pyruvate Lyase, Chorismate Mutase, Pchb, Lyase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   Q. Luo, J. Olucha, A. L. Lamb
Structure-Function Analyses Of Isochorismate-Pyruvate Lyase From Pseudomonas Aeruginosa Suggest Differing Catalytic Mechanisms For The Two Pericyclic Reactions Of This Bifunctional Enzyme.
Biochemistry V. 48 5239 2009
PubMed-ID: 19432488 | Reference-DOI: 10.1021/BI900456E
(for further references see the PDB file header)

Molecule 1 - SALICYLATE BIOSYNTHESIS PROTEIN PCHB
	Chains	:	A, B
	EC Number	:	4.1.99.-
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Plasmid	:	PET29B
	Expression System Strain	:	BL21(DE3)
	Expression System Taxid	:	562
	Expression System Vector Type	:	PLASMID
	Gene	:	PCHB, PA4230
	Mutation	:	YES
	Organism Scientific	:	PSEUDOMONAS AERUGINOSA
	Organism Taxid	:	287
	Strain	:	PAO1

		1	2
Asymmetric/Biological Unit	:	A	B

Summary Information (see also Sequences/Alignments below)

Asymmetric/Biological Unit (2, 4)

No.	Name	Count	Type	Full Name
1	PYR	2	Ligand/Ion	PYRUVIC ACID
2	SAL	2	Ligand/Ion	2-HYDROXYBENZOIC ACID

Asymmetric Unit (4, 4)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	ARG A:31 , VAL A:35 , ILE A:48 , PRO A:49 , MET A:57 , TYR A:86 , ILE A:87 , GLN A:90 , PYR B:102 , HOH B:107	BINDING SITE FOR RESIDUE SAL A 101
2	AC2	SOFTWARE	ALA A:38 , ARG A:53 , GLN A:90 , ARG B:14 , HOH B:107	BINDING SITE FOR RESIDUE PYR B 102
3	AC3	SOFTWARE	ARG A:14 , ILE A:17 , ALA B:38 , ARG B:53 , GLN B:90 , SAL B:104	BINDING SITE FOR RESIDUE PYR A 103
4	AC4	SOFTWARE	PYR A:103 , ARG B:31 , VAL B:35 , ILE B:48 , PRO B:49 , MET B:57 , TYR B:86 , ILE B:87 , GLN B:90	BINDING SITE FOR RESIDUE SAL B 104

(no "SS Bond" information available for 3HGX)

(no "Cis Peptide Bond" information available for 3HGX)

(no "SAP(SNP)/Variant" information available for 3HGX)

Asymmetric/Biological Unit (1, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	CHORISMATE_MUT_2	PS51168	Chorismate mutase domain profile.	PCHB_PSEAE	4-94	2	A:4-94 B:4-94

(no "Exon" information available for 3HGX)

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
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Chain A from PDB  Type:PROTEIN  Length:99
 aligned with PCHB_PSEAE | Q51507 from UniProtKB/Swiss-Prot  Length:101

    Alignment length:99
                                    10        20        30        40        50        60        70        80        90         
            PCHB_PSEAE    1 MKTPEDCTGLADIREAIDRIDLDIVQALGRRMDYVKAASRFKASEAAIPAPERVAAMLPERARWAEENGLDAPFVEGLFAQIIHWYIAEQIKYWRQTRG 99
               SCOP domains d3hgxa_ A: automated matches                                                                        SCOP domains
               CATH domains --------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ........hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhh.hhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---CHORISMATE_MUT_2  PDB: A:4-94 UniProt: 4-94                                                ----- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------- Transcript
                  3hgx A  1 MKTPEDCTGLADIREAIDRIDLDIVQALGRRMDYVKAASRFAASEAAIPAPERVAAMLPERARWAEENGLDAPFVEGLFAQIIHWYIAEQIKYWRQTRG 99
                                    10        20        30        40        50        60        70        80        90

Chain B from PDB  Type:PROTEIN  Length:99
 aligned with PCHB_PSEAE | Q51507 from UniProtKB/Swiss-Prot  Length:101

    Alignment length:99
                                    10        20        30        40        50        60        70        80        90         
            PCHB_PSEAE    1 MKTPEDCTGLADIREAIDRIDLDIVQALGRRMDYVKAASRFKASEAAIPAPERVAAMLPERARWAEENGLDAPFVEGLFAQIIHWYIAEQIKYWRQTRG 99
               SCOP domains d3hgxb_ B: automated matches                                                                        SCOP domains
               CATH domains --------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ........hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhh.hhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---CHORISMATE_MUT_2  PDB: B:4-94 UniProt: 4-94                                                ----- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------- Transcript
                  3hgx B  1 MKTPEDCTGLADIREAIDRIDLDIVQALGRRMDYVKAASRFAASEAAIPAPERVAAMLPERARWAEENGLDAPFVEGLFAQIIHWYIAEQIKYWRQTRG 99
                                    10        20        30        40        50        60        70        80        90

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 '\|'

Asymmetric/Biological Unit

Classes(

)

Folds(

)

Superfamilies( (-)

)

Families(

)

Protein Domains( (-)

)

Organisms( (-)

)

Class: All alpha proteins (14657)

Fold: Chorismate mutase II (21)

Superfamily: Chorismate mutase II (21)

Family: Dimeric chorismate mutase (10)

Protein domain: automated matches (4)

Pseudomonas aeruginosa [TaxId: 287] (4)

1a	d3hgxa_	A:
1b	d3hgxb_	B:

(no "CATH Domain" information available for 3HGX)

(no "Pfam Domain" information available for 3HGX)

Asymmetric/Biological Unit(hide GO term definitions)

Chain A,B (PCHB_PSEAE | Q51507)

molecular function
	GO:0016835	carbon-oxygen lyase activity	Catalysis of the breakage of a carbon-oxygen bond.
	GO:0004106	chorismate mutase activity	Catalysis of the reaction: chorismate = prephenate.
	GO:0016853	isomerase activity	Catalysis of the geometric or structural changes within one molecule. Isomerase is the systematic name for any enzyme of EC class 5.
	GO:0016829	lyase activity	Catalysis of the cleavage of C-C, C-O, C-N and other bonds by other means than by hydrolysis or oxidation, or conversely adding a group to a double bond. They differ from other enzymes in that two substrates are involved in one reaction direction, but only one in the other direction. When acting on the single substrate, a molecule is eliminated and this generates either a new double bond or a new ring.
biological process
	GO:0046417	chorismate metabolic process	The chemical reactions and pathways involving chorismate, the anion of (3R-trans)-3-((1-carboxyethenyl)oxy)-4-hydroxy-1,5-cyclohexadiene-1-carboxylic acid.
	GO:0042864	pyochelin biosynthetic process	The chemical reactions and pathways resulting in the formation of the siderochrome pyochelin (2-(2-o-hydroxyphenyl-2-thiazolin-4-yl)-3-methylthiazolidine-4-carboxylic acid).
	GO:0009697	salicylic acid biosynthetic process	The chemical reactions and pathways resulting in the formation of salicylic acid (2-hydroxybenzoic acid), a derivative of benzoic acid.

Asymmetric/Biological Unit
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	Cis Peptide Bonds
(no "Cis Peptide Bonds" information available for 3hgx)

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	PCHB_PSEAE \| Q51507	:	2h9c 2h9d 3hgw 3rem 3ret

Description

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