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Title :   CRYSTAL STRUCTURE AND FUNCTION OF THE ISONIAZID TARGET OF MYCOBACTERIUM TUBERCULOSIS

Authors :   A. Dessen, A. Quemard, J. S. Blanchard, W. R. Jacobs Jr. , J. C. Sacchett Structural Genomics Consortium (Tbsgc)

Date :   27 Jan 95 (Deposition) - 29 Jan 96 (Release) - 13 Jul 11 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.70

Chains :   Asym. Unit : A
Biol. Unit 1: A  (2x)
Biol. Unit 2: A  (4x)

Keywords :   Structural Genomics, Psi, Protein Structure Initiative, Tb Structural Genomics Consortium, Tbsgc, Oxidoreductase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   A. Dessen, A. Quemard, J. S. Blanchard, W. R. Jacobs Jr. , J. C. Sacchettini
Crystal Structure And Function Of The Isoniazid Target Of Mycobacterium Tuberculosis.
Science V. 267 1638 1995
PubMed-ID: 7886450

Molecule 1 - ENOYL-ACYL CARRIER PROTEIN (ACP) REDUCTASE
	Chains	:	A
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Taxid	:	562
	Mutation	:	YES
	Organism Scientific	:	MYCOBACTERIUM TUBERCULOSIS
	Organism Taxid	:	1773
	Synonym	:	INHA

		1
Asymmetric Unit	:	A
Biological Unit 1 (2x)	:	A
Biological Unit 2 (4x)	:	A

Summary Information (see also Sequences/Alignments below)

Asymmetric Unit (1, 1)

No.	Name	Count	Type	Full Name
1	NAD	1	Ligand/Ion	NICOTINAMIDE-ADENINE-DINUCLEOTIDE

Biological Unit 1 (1, 2)

No.	Name	Count	Type	Full Name
1	NAD	2	Ligand/Ion	NICOTINAMIDE-ADENINE-DINUCLEOTIDE

Biological Unit 2 (1, 4)

No.	Name	Count	Type	Full Name
1	NAD	4	Ligand/Ion	NICOTINAMIDE-ADENINE-DINUCLEOTIDE

Asymmetric Unit (1, 1)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	GLY A:14 , ILE A:16 , SER A:20 , ILE A:21 , PHE A:41 , LEU A:63 , ASP A:64 , VAL A:65 , ALA A:94 , ILE A:95 , GLY A:96 , ILE A:122 , MET A:147 , ASP A:148 , PHE A:149 , LYS A:165 , ALA A:191 , GLY A:192 , PRO A:193 , ILE A:194 , THR A:196 , HOH A:271 , HOH A:305 , HOH A:309	BINDING SITE FOR RESIDUE NAD A 500

(no "SS Bond" information available for 1ENZ)

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

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

(no "PROSITE Motif" information available for 1ENZ)

(no "Exon" information available for 1ENZ)

Asymmetric 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:268
 aligned with INHA_MYCTO | P9WGR0 from UniProtKB/Swiss-Prot  Length:269

    Alignment length:268
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261        
           INHA_MYCTO     2 TGLLDGKRILVSGIITDSSIAFHIARVAQEQGAQLVLTGFDRLRLIQRITDRLPAKAPLLELDVQNEEHLASLAGRVTEAIGAGNKLDGVVHSIGFMPQTGMGINPFFDAPYADVSKGIHISAYSYASMAKALLPIMNPGGSIVGMDFDPSRAMPAYNWMTVAKSALESVNRFVAREAGKYGVRSNLVAAGPIRTLAMSAIVGGALGEEAGAQIQLLEEGWDQRAPIGWNMKDATPVAKTVCALLSDWLPATTGDIIYADGGAHTQLL 269
               SCOP domains d1enza_ A: Enoyl-ACP reductase                                                                                                                                                                                                                                               SCOP domains
               CATH domains 1enzA00 A:2-269 NAD(P)-binding Rossmann-like Domain                                                                                                                                                                                                                          CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .....eeeeeeee......hhhhhhhhhhh..eeeeeee...hhhhhhhhhhh..eeeeeeee...hhhhhhhhhhhhhhh....eeeeeeeeeeeee.............hhhhhhhhhhhhhhhhhhhhhhhhh....eeeeeeeeeeee.....hhhhhhhhhhhhhhhhhhhhhh...eeeeeeeee..hhhhhhhhhhh...hhhhhhhhhhhhhhhhhh........hhhhhhhhhhhhh....eeeeeeeee......... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1enz A   2 AGLLDGKRILVSGIITDSSIAFHIARVAQEQGAQLVLTGFDRLRLIQRITDRLPAKAPLLELDVQNEEHLASLAGRVTEAIGAGNKLDGVVHAIGFMPQTGMGINPFFDAPYADVSKGIHISAYSYASMAKALLPIMNPGGSIVGMDFDPSRAMPAYNWMTVAKSALESVNRFVAREAGKYGVRSNLVAAGPIRTLAMSAIVGGALGEEAGAQIQLLEEGWDQRAPIGWNMKDATPVAKTVCALLSDWLPATTGDIIYADGGAHTQLL 269
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261

Chain A from PDB  Type:PROTEIN  Length:268
 aligned with INHA_MYCTU | P9WGR1 from UniProtKB/Swiss-Prot  Length:269

    Alignment length:268
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261        
           INHA_MYCTU     2 TGLLDGKRILVSGIITDSSIAFHIARVAQEQGAQLVLTGFDRLRLIQRITDRLPAKAPLLELDVQNEEHLASLAGRVTEAIGAGNKLDGVVHSIGFMPQTGMGINPFFDAPYADVSKGIHISAYSYASMAKALLPIMNPGGSIVGMDFDPSRAMPAYNWMTVAKSALESVNRFVAREAGKYGVRSNLVAAGPIRTLAMSAIVGGALGEEAGAQIQLLEEGWDQRAPIGWNMKDATPVAKTVCALLSDWLPATTGDIIYADGGAHTQLL 269
               SCOP domains d1enza_ A: Enoyl-ACP reductase                                                                                                                                                                                                                                               SCOP domains
               CATH domains 1enzA00 A:2-269 NAD(P)-binding Rossmann-like Domain                                                                                                                                                                                                                          CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .....eeeeeeee......hhhhhhhhhhh..eeeeeee...hhhhhhhhhhh..eeeeeeee...hhhhhhhhhhhhhhh....eeeeeeeeeeeee.............hhhhhhhhhhhhhhhhhhhhhhhhh....eeeeeeeeeeee.....hhhhhhhhhhhhhhhhhhhhhh...eeeeeeeee..hhhhhhhhhhh...hhhhhhhhhhhhhhhhhh........hhhhhhhhhhhhh....eeeeeeeee......... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1enz A   2 AGLLDGKRILVSGIITDSSIAFHIARVAQEQGAQLVLTGFDRLRLIQRITDRLPAKAPLLELDVQNEEHLASLAGRVTEAIGAGNKLDGVVHAIGFMPQTGMGINPFFDAPYADVSKGIHISAYSYASMAKALLPIMNPGGSIVGMDFDPSRAMPAYNWMTVAKSALESVNRFVAREAGKYGVRSNLVAAGPIRTLAMSAIVGGALGEEAGAQIQLLEEGWDQRAPIGWNMKDATPVAKTVCALLSDWLPATTGDIIYADGGAHTQLL 269
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261

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 Unit

Classes(

)

Folds(

)

Superfamilies( (-)

)

Families(

)

Protein Domains( (-)

)

Organisms( (-)

)

Class: Alpha and beta proteins (a/b) (23833)

Fold: NAD(P)-binding Rossmann-fold domains (1604)

Superfamily: NAD(P)-binding Rossmann-fold domains (1604)

Family: Tyrosine-dependent oxidoreductases (503)

Protein domain: Enoyl-ACP reductase (96)

Mycobacterium tuberculosis, TB, gene InhA [TaxId: 1773] (44)

d1enza_

Asymmetric Unit

Classes(

)

Architectures( (-)

)

Topologies( (-)

)

Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Alpha Beta (26913)

Architecture: 3-Layer(aba) Sandwich (12045)

Topology: Rossmann fold (7312)

Homologous Superfamily: NAD(P)-binding Rossmann-like Domain (1244)

Mycobacterium tuberculosis. Organism_taxid: 1773. (15)

1enzA00

A:2-269

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

Asymmetric Unit(hide GO term definitions)

Chain A (INHA_MYCTU | P9WGR1)

molecular function
	GO:0070403	NAD+ binding	Interacting selectively and non-covalently with the oxidized form, NAD, of nicotinamide adenine dinucleotide, a coenzyme involved in many redox and biosynthetic reactions.
	GO:0004318	enoyl-[acyl-carrier-protein] reductase (NADH) activity	Catalysis of the reaction: acyl-[acyl-carrier protein] + NAD+ = trans-2,3-dehydroacyl-[acyl-carrier protein] + NADH + H+.
	GO:0005504	fatty acid binding	Interacting selectively and non-covalently with fatty acids, aliphatic monocarboxylic acids liberated from naturally occurring fats and oils by hydrolysis.
	GO:0016491	oxidoreductase activity	Catalysis of an oxidation-reduction (redox) reaction, a reversible chemical reaction in which the oxidation state of an atom or atoms within a molecule is altered. One substrate acts as a hydrogen or electron donor and becomes oxidized, while the other acts as hydrogen or electron acceptor and becomes reduced.
biological process
	GO:0006633	fatty acid biosynthetic process	The chemical reactions and pathways resulting in the formation of a fatty acid, any of the aliphatic monocarboxylic acids that can be liberated by hydrolysis from naturally occurring fats and oils. Fatty acids are predominantly straight-chain acids of 4 to 24 carbon atoms, which may be saturated or unsaturated; branched fatty acids and hydroxy fatty acids also occur, and very long chain acids of over 30 carbons are found in waxes.
	GO:0030497	fatty acid elongation	The elongation of a fatty acid chain by the sequential addition of two-carbon units.
	GO:0006631	fatty acid metabolic process	The chemical reactions and pathways involving fatty acids, aliphatic monocarboxylic acids liberated from naturally occurring fats and oils by hydrolysis.
	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.
	GO:0071768	mycolic acid biosynthetic process	The chemical reactions and pathways resulting in the formation of mycolic acids, beta-hydroxy fatty acids with a long alpha-alkyl side chain.
	GO:0055114	oxidation-reduction process	A metabolic process that results in the removal or addition of one or more electrons to or from a substance, with or without the concomitant removal or addition of a proton or protons.
	GO:0046677	response to antibiotic	Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an antibiotic stimulus. An antibiotic is a chemical substance produced by a microorganism which has the capacity to inhibit the growth of or to kill other microorganisms.
cellular component
	GO:0005618	cell wall	The rigid or semi-rigid envelope lying outside the cell membrane of plant, fungal, most prokaryotic cells and some protozoan parasites, maintaining their shape and protecting them from osmotic lysis. In plants it is made of cellulose and, often, lignin; in fungi it is composed largely of polysaccharides; in bacteria it is composed of peptidoglycan; in protozoan parasites such as Giardia species, it's made of carbohydrates and proteins.
	GO:0005886	plasma membrane	The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.

Chain A (INHA_MYCTO | P9WGR0)

molecular function
	GO:0004318	enoyl-[acyl-carrier-protein] reductase (NADH) activity	Catalysis of the reaction: acyl-[acyl-carrier protein] + NAD+ = trans-2,3-dehydroacyl-[acyl-carrier protein] + NADH + H+.
	GO:0016491	oxidoreductase activity	Catalysis of an oxidation-reduction (redox) reaction, a reversible chemical reaction in which the oxidation state of an atom or atoms within a molecule is altered. One substrate acts as a hydrogen or electron donor and becomes oxidized, while the other acts as hydrogen or electron acceptor and becomes reduced.
biological process
	GO:0006633	fatty acid biosynthetic process	The chemical reactions and pathways resulting in the formation of a fatty acid, any of the aliphatic monocarboxylic acids that can be liberated by hydrolysis from naturally occurring fats and oils. Fatty acids are predominantly straight-chain acids of 4 to 24 carbon atoms, which may be saturated or unsaturated; branched fatty acids and hydroxy fatty acids also occur, and very long chain acids of over 30 carbons are found in waxes.
	GO:0006631	fatty acid metabolic process	The chemical reactions and pathways involving fatty acids, aliphatic monocarboxylic acids liberated from naturally occurring fats and oils by hydrolysis.
	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.
	GO:0055114	oxidation-reduction process	A metabolic process that results in the removal or addition of one or more electrons to or from a substance, with or without the concomitant removal or addition of a proton or protons.
	GO:0046677	response to antibiotic	Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an antibiotic stimulus. An antibiotic is a chemical substance produced by a microorganism which has the capacity to inhibit the growth of or to kill other microorganisms.

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