1I4N - JenaLib

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Title :   CRYSTAL STRUCTURE OF INDOLEGLYCEROL PHOSPHATE SYNTHASE FROM THERMOTOGA MARITIMA

Authors :   T. Knoechel, A. Pappenberger, J. N. Jansonius, K. Kirschner

Date :   22 Feb 01 (Deposition) - 20 Mar 02 (Release) - 24 Feb 09 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.50

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

Keywords :   Indoleglycerol Phosphate Synthase; Thermotoga Maritima; Thermostable Tim-Barrel Protein; Salt Bridges; Electrostatic Interactions, Lyase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   T. Knochel, A. Pappenberger, J. N. Jansonius, K. Kirschner
The Crystal Structure Of Indoleglycerol-Phosphate Synthase From Thermotoga Maritima. Kinetic Stabilization By Salt Bridges.
J. Biol. Chem. V. 277 8626 2002
PubMed-ID: 11741953 | Reference-DOI: 10.1074/JBC.M109517200
(for further references see the PDB file header)

Molecule 1 - INDOLE-3-GLYCEROL PHOSPHATE SYNTHASE
	Chains	:	A, B
	EC Number	:	4.1.1.48
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Taxid	:	562
	Organism Scientific	:	THERMOTOGA MARITIMA
	Organism Taxid	:	2336
	Synonym	:	INDOLEGLYCEROL PHOSPHATE SYNTHASE, IGPS

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

Summary Information (see also Sequences/Alignments below)

Asymmetric Unit (1, 2)

No.	Name	Count	Type	Full Name
1	SO4	2	Ligand/Ion	SULFATE ION

Biological Unit 1 (1, 1)

No.	Name	Count	Type	Full Name
1	SO4	1	Ligand/Ion	SULFATE ION

Biological Unit 2 (1, 1)

No.	Name	Count	Type	Full Name
1	SO4	1	Ligand/Ion	SULFATE ION

Asymmetric Unit (2, 2)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	LYS A:49 , ARG A:181 , SER A:210 , GLY A:211 , GLY A:231 , THR A:232 , HOH A:618 , HOH A:619	BINDING SITE FOR RESIDUE SO4 A 500
2	AC2	SOFTWARE	LYS B:49 , ARG B:181 , SER B:210 , GLY B:231 , THR B:232 , HOH B:643 , HOH B:644	BINDING SITE FOR RESIDUE SO4 B 501

Asymmetric Unit

No.	Residues
1	A:102	-	B:102

(no "Cis Peptide Bond" information available for 1I4N)

(no "SAP(SNP)/Variant" information available for 1I4N)

Asymmetric Unit (1, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	IGPS	PS00614	Indole-3-glycerol phosphate synthase signature.	TRPC_THEMA	44-58	2	A:44-58 B:44-58

Biological Unit 1 (1, 1)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	IGPS	PS00614	Indole-3-glycerol phosphate synthase signature.	TRPC_THEMA	44-58	1	A:44-58 -

Biological Unit 2 (1, 1)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	IGPS	PS00614	Indole-3-glycerol phosphate synthase signature.	TRPC_THEMA	44-58	1	- B:44-58

(no "Exon" information available for 1I4N)

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:251
 aligned with TRPC_THEMA | Q56319 from UniProtKB/Swiss-Prot  Length:252

    Alignment length:251
                                    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 
           TRPC_THEMA     2 RRLWEIVEAKKKDILEIDGENLIVQRRNHRFLEVLSGKERVKIIAEFKKASPSAGDINADASLEDFIRMYDELADAISILTEKHYFKGDPAFVRAARNLTCRPILAKDFYIDTVQVKLASSVGADAILIIARILTAEQIKEIYEAAEELGMDSLVEVHSREDLEKVFSVIRPKIIGINTRDLDTFEIKKNVLWELLPLVPDDTVVVAESGIKDPRELKDLRGKVNAVLVGTSIMKAENPRRFLEEMRAWSE 252
               SCOP domains d1i4na_ A: Indole-3-glycerophosphate synthase, IPGS                                                                                                                                                                                                         SCOP domains
               CATH domains 1i4nA00 A:2-252 Aldolase class I                                                                                                                                                                                                                            CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .hhhhhhhhhhhhhhhhhhhhh......hhhhhhhh.....eeeeee..............hhhhhhhhhhhhh.eeeee.........hhhhhhhhh.....eeee.....hhhhhhhhhh...eeeee.hhhhhhhhhhhhhhhhh...eeeeee.hhhhhhhhhh.....eeeee...........hhhhhhhhhh....eeeee....hhhhhhhhh....eeeehhhhhhh.hhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------IGPS           -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1i4n A   2 RRLWEIVEAKKKDILEIDGENLIVQRRNHRFLEVLSGKERVKIIAEFKKASPSAGDINADASLEDFIRMYDELADAISILTEKHYFKGDPAFVRAARNLTCRPILAKDFYIDTVQVKLASSVGADAILIIARILTAEQIKEIYEAAEELGMDSLVEVHSREDLEKVFSVIRPKIIGINTRDLDTFEIKKNVLWELLPLVPDDTVVVAESGIKDPRELKDLRGKVNAVLVGTSIMKAENPRRFLEEMRAWSE 252
                                    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

Chain B from PDB  Type:PROTEIN  Length:251
 aligned with TRPC_THEMA | Q56319 from UniProtKB/Swiss-Prot  Length:252

    Alignment length:251
                                    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 
           TRPC_THEMA     2 RRLWEIVEAKKKDILEIDGENLIVQRRNHRFLEVLSGKERVKIIAEFKKASPSAGDINADASLEDFIRMYDELADAISILTEKHYFKGDPAFVRAARNLTCRPILAKDFYIDTVQVKLASSVGADAILIIARILTAEQIKEIYEAAEELGMDSLVEVHSREDLEKVFSVIRPKIIGINTRDLDTFEIKKNVLWELLPLVPDDTVVVAESGIKDPRELKDLRGKVNAVLVGTSIMKAENPRRFLEEMRAWSE 252
               SCOP domains d1i4nb_ B: Indole-3-glycerophosphate synthase, IPGS                                                                                                                                                                                                         SCOP domains
               CATH domains 1i4nB00 B:2-252 Aldolase class I                                                                                                                                                                                                                            CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .hhhhhhhhhhhhhhhhhhhhh......hhhhhhhh.....eeeeee..ee...ee.....hhhhhhhhhhhhh.eeeee.........hhhhhhhhh.....eeee.....hhhhhhhhhh...eeeee.hhhhhhhhhhhhhhhhhh..eeeeee.hhhhhhhhhhhh...eeeee..........hhhhhhhhhhh....eeeee....hhhhhhhhh....eeeehhhhhhh.hhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------IGPS           -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1i4n B   2 RRLWEIVEAKKKDILEIDGENLIVQRRNHRFLEVLSGKERVKIIAEFKKASPSAGDINADASLEDFIRMYDELADAISILTEKHYFKGDPAFVRAARNLTCRPILAKDFYIDTVQVKLASSVGADAILIIARILTAEQIKEIYEAAEELGMDSLVEVHSREDLEKVFSVIRPKIIGINTRDLDTFEIKKNVLWELLPLVPDDTVVVAESGIKDPRELKDLRGKVNAVLVGTSIMKAENPRRFLEEMRAWSE 252
                                    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

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(

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Folds(

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Superfamilies( (-)

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Families(

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Protein Domains( (-)

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Organisms( (-)

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

Fold: TIM beta/alpha-barrel (3956)

Superfamily: Ribulose-phoshate binding barrel (356)

Family: Tryptophan biosynthesis enzymes (108)

Protein domain: Indole-3-glycerophosphate synthase, IPGS (11)

Thermotoga maritima [TaxId: 2336] (2)

1a	d1i4na_	A:
1b	d1i4nb_	B:

Asymmetric Unit

Classes(

)

Architectures( (-)

)

Topologies( (-)

)

Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Alpha Beta (26913)

Architecture: Alpha-Beta Barrel (2994)

Topology: TIM Barrel (2806)

Homologous Superfamily: Aldolase class I (887)

Thermotoga maritima. Organism_taxid: 2336. (8)

1a	1i4nA00	A:2-252
1b	1i4nB00	B:2-252

(no "Pfam Domain" information available for 1I4N)

Asymmetric Unit(hide GO term definitions)

Chain A,B (TRPC_THEMA | Q56319)

molecular function
	GO:0016831	carboxy-lyase activity	Catalysis of the nonhydrolytic addition or removal of a carboxyl group to or from a compound.
	GO:0003824	catalytic activity	Catalysis of a biochemical reaction at physiological temperatures. In biologically catalyzed reactions, the reactants are known as substrates, and the catalysts are naturally occurring macromolecular substances known as enzymes. Enzymes possess specific binding sites for substrates, and are usually composed wholly or largely of protein, but RNA that has catalytic activity (ribozyme) is often also regarded as enzymatic.
	GO:0004425	indole-3-glycerol-phosphate synthase activity	Catalysis of the reaction: 1-(2-carboxyphenylamino)-1-deoxy-D-ribulose 5-phosphate = 1-(indol-3-yl)glycerol 3-phosphate + CO2 + H2O.
	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.
	GO:0004640	phosphoribosylanthranilate isomerase activity	Catalysis of the reaction: N-(5-phospho-beta-D-ribosyl)anthranilate = 1-(2-carboxyphenylamino)-1-deoxy-D-ribulose 5-phosphate.
biological process
	GO:0009073	aromatic amino acid family biosynthetic process	The chemical reactions and pathways resulting in the formation of aromatic amino acid family, amino acids with aromatic ring (phenylalanine, tyrosine, tryptophan).
	GO:0008652	cellular amino acid biosynthetic process	The chemical reactions and pathways resulting in the formation of amino acids, organic acids containing one or more amino substituents.
	GO:0008152	metabolic process	The chemical reactions and pathways, including anabolism and catabolism, by which living organisms transform chemical substances. Metabolic processes typically transform small molecules, but also include macromolecular processes such as DNA repair and replication, and protein synthesis and degradation.
	GO:0000162	tryptophan biosynthetic process	The chemical reactions and pathways resulting in the formation of tryptophan, the chiral amino acid 2-amino-3-(1H-indol-3-yl)propanoic acid; tryptophan is synthesized from chorismate via anthranilate.
	GO:0006568	tryptophan metabolic process	The chemical reactions and pathways involving tryptophan, the chiral amino acid 2-amino-3-(1H-indol-3-yl)propanoic acid.

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1igs	CRYSTAL STRUCTURE OF INDOLEGLYCEROL PHOSPHATE SYNTHASE FROM SULFOLOBUS SOLFATARICUS
1juk	CRYSTAL STRUCTURE OF INDOLEGLYCEROL PHOSPHATE SYNTHASE FROM SULFOLOBUS SOLFATARICUS
1jul	CRYSTAL STRUCTURE OF INDOLEGLYCEROL PHOSPHATE SYNTHASE FROM SULFOLOBUS SOLFATARICUS
1pii	CRYSTAL STRUCTURE OF INDOLEGLYCEROL PHOSPHATE SYNTHASE FROM ESCHERICHIA COLI

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