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Title :   CRYSTAL STRUCTURE OF CRYSTAL STRUCTURE OF PHOSPHOGLUCOSE/PHOSPHOMANNOSE PHOSPHOGLUCOSE/PHOSPHOMANNOSEISOMERASE FROM PYROBACULUM AEROPHILUM IN COMPLEX WITH GLUCOSE 6-PHOSPHATE

Authors :   M. K. Swan, T Hansen, P. Schoenheit, C. Davies

Date :   21 Aug 04 (Deposition) - 07 Dec 04 (Release) - 13 Jul 11 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   1.16

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

Keywords :   Enzyme, Crenarchaeon, Hyperthermophile, Pgi Superfamily, Glucose 6- Phosphate, Isomerase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   M. K. Swan, T. Hansen, P. Schoenheit, C. Davies
Structural Basis For Phosphomannose Isomerase Activity In Phosphoglucose Isomerase From Pyrobaculum Aerophilum: A Subtle Difference Between Distantly Related Enzymes.
Biochemistry V. 43 14088 2004
PubMed-ID: 15518558 | Reference-DOI: 10.1021/BI048608Y
(for further references see the PDB file header)

Molecule 1 - GLUCOSE-6-PHOSPHATE ISOMERASE
	Chains	:	A, B
	EC Number	:	5.3.1.9, 5.3.1.8
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Plasmid	:	PET17B
	Expression System Strain	:	JM109
	Expression System Taxid	:	562
	Expression System Vector Type	:	PLASMID
	Gene	:	PAE1610
	Organism Scientific	:	PYROBACULUM AEROPHILUM
	Organism Taxid	:	13773

		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	G6Q	2	Ligand/Ion	GLUCOSE-6-PHOSPHATE
2	GOL	2	Ligand/Ion	GLYCEROL

Asymmetric Unit (4, 4)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	MET A:45 , GLY A:46 , GLY A:47 , SER A:48 , SER A:87 , TYR A:88 , SER A:89 , THR A:92 , PRO A:134 , ARG A:135 , GLU A:203 , LYS A:298 , HOH A:721 , HOH A:763 , HOH A:931 , HOH A:938 , HIS B:219	BINDING SITE FOR RESIDUE G6Q A 600
2	AC2	SOFTWARE	HIS A:219 , MET B:45 , GLY B:46 , GLY B:47 , SER B:48 , SER B:87 , TYR B:88 , SER B:89 , THR B:92 , PRO B:134 , ARG B:135 , GLU B:203 , LYS B:298 , HOH B:626 , HOH B:796 , HOH B:797 , HOH B:803	BINDING SITE FOR RESIDUE G6Q B 601
3	AC3	SOFTWARE	ASP A:53 , LYS A:72 , ARG A:191 , TYR A:195 , HOH A:737 , HOH A:749 , HOH A:784 , HOH A:859	BINDING SITE FOR RESIDUE GOL A 701
4	AC4	SOFTWARE	ALA A:70 , VAL A:71 , LYS A:72 , ASP A:73 , HOH A:851 , HOH A:859 , ARG B:56 , GLU B:188 , HOH B:776	BINDING SITE FOR RESIDUE GOL A 702

(no "SS Bond" information available for 1X9I)

Asymmetric/Biological Unit

No.	Residues
1	Leu A:214	-	Pro A:215
2	Leu B:214	-	Pro B:215

(no "SAP(SNP)/Variant" information available for 1X9I)

Asymmetric/Biological Unit (1, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	SIS	PS51464	SIS domain profile.	PGMI_PYRAE	27-160	2	A:27-160 B:27-160

(no "Exon" information available for 1X9I)

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:300
 aligned with PGMI_PYRAE | Q8ZWV0 from UniProtKB/Swiss-Prot  Length:302

    Alignment length:300
                                    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       271       281       291       301
           PGMI_PYRAE     2 SQLLQDYLNWENYILRRVDFPTSYVVEGEVVRIEAMPRLYISGMGGSGVVADLIRDFSLTWNWEVEVIAVKDYFLKARDGLLIAVSYSGNTIETLYTVEYAKRRRIPAVAITTGGRLAQMGVPTVIVPKASAPRAALPQLLTAALHVVAKVYGIDVKIPEGLEPPNEALIHKLVEEFQKRPTIIAAESMRGVAYRVKNEFNENAKIEPSVEILPEAHHNWIEGSERAVVALTSPHIPKEHQERVKATVEIVGGSIYAVEMHPKGVLSFLRDVGIASVKLAEIRGVNPLATPRIDALKRRL 301
               SCOP domains d1x9ia_ A: Glucose-6-phosphate isomerase, conjectural                                                                                                                                                                                                                                                        SCOP domains
               CATH domains 1x9iA01 A:2-163 Glucose-6-phosphate isomerase like protein; domain 1                                                                                              1x9iA02 A:164-301 Glucose-6-phosphate isomerase like protein; domain 1                                                                     CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author hhhhhhhhhhhhhh........eeee..eeee.....eeeee.hhhhhhhhhhhhhhhhhh....eeeee..........eeeee.....hhhhhhhhhhhhhhh..eeeee...hhhhh...eee.....hhhhhhhhhhhhhhhhhhhhhh............hhhhhhhhhhhhh...eeeee..hhhhhhhhhhhhhhh.....eeeeehhhhhhhhhhh...eeeee....hhhhhhhhhhhhhhhh.eeee...hhhhhhhhhhhhhhhhhhhhhhhh.....hhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE -------------------------SIS  PDB: A:27-160 UniProt: 27-160                                                                                                    --------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 1x9i A   2 SQLLQDYLNWENYILRRVDFPTSYVVEGEVVRIEAMPRLYISGMGGSGVVADLIRDFSLTWNWEVEVIAVKDYFLKARDGLLIAVSYSGNTIETLYTVEYAKRRRIPAVAITTGGRLAQMGVPTVIVPKASAPRAALPQLLTAALHVVAKVYGIDVKIPEGLEPPNEALIHKLVEEFQKRPTIIAAESMRGVAYRVKNEFNENAKIEPSVEILPEAHHNWIEGSERAVVALTSPHIPKEHQERVKATVEIVGGSIYAVEMHPKGVLSFLRDVGIASVKLAEIRGVNPLATPRIDALKRRL 301
                                    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       271       281       291       301

Chain B from PDB  Type:PROTEIN  Length:301
 aligned with PGMI_PYRAE | Q8ZWV0 from UniProtKB/Swiss-Prot  Length:302

    Alignment length:301
                                    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       271       281       291       301 
           PGMI_PYRAE     2 SQLLQDYLNWENYILRRVDFPTSYVVEGEVVRIEAMPRLYISGMGGSGVVADLIRDFSLTWNWEVEVIAVKDYFLKARDGLLIAVSYSGNTIETLYTVEYAKRRRIPAVAITTGGRLAQMGVPTVIVPKASAPRAALPQLLTAALHVVAKVYGIDVKIPEGLEPPNEALIHKLVEEFQKRPTIIAAESMRGVAYRVKNEFNENAKIEPSVEILPEAHHNWIEGSERAVVALTSPHIPKEHQERVKATVEIVGGSIYAVEMHPKGVLSFLRDVGIASVKLAEIRGVNPLATPRIDALKRRLQ 302
               SCOP domains d1x9ib_ B: Glucose-6-phosphate isomerase, conjectural                                                                                                                                                                                                                                                         SCOP domains
               CATH domains 1x9iB01 B:2-163 Glucose-6-phosphate isomerase like protein; domain 1                                                                                              1x9iB02 B:164-302 Glucose-6-phosphate isomerase like protein; domain 1                                                                      CATH domains
           Pfam domains (1) --------------------------------SIS-1x9iB01 B:34-149                                                                                                --------------bact-PGI_C-1x9iB03 B:164-302                                                                                                                Pfam domains (1)
           Pfam domains (2) --------------------------------SIS-1x9iB02 B:34-149                                                                                                --------------bact-PGI_C-1x9iB04 B:164-302                                                                                                                Pfam domains (2)
         Sec.struct. author hhhhhhhhhhhhhh........eeee..eeee.....eeeee.hhhhhhhhhhhhhhhhhh....eeeee..........eeeeee....hhhhhhhhhhhhhh...eeeee...hhhhh...eee.....hhhhhhhhhhhhhhhhhhhhhh............hhhhhhhhhhhhh...eeeee..hhhhhhhhhhhhhhh.....eeeeehhhhhhhhhhh...eeeee....hhhhhhhhhhhhhhhh.eeee...hhhhhhhhhhhhhhhhhhhhhhhh.....hhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------SIS  PDB: B:27-160 UniProt: 27-160                                                                                                    ---------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1x9i B   2 SQLLQDYLNWENYILRRVDFPTSYVVEGEVVRIEAMPRLYISGMGGSGVVADLIRDFSLTWNWEVEVIAVKDYFLKARDGLLIAVSYSGNTIETLYTVEYAKRRRIPAVAITTGGRLAQMGVPTVIVPKASAPRAALPQLLTAALHVVAKVYGIDVKIPEGLEPPNEALIHKLVEEFQKRPTIIAAESMRGVAYRVKNEFNENAKIEPSVEILPEAHHNWIEGSERAVVALTSPHIPKEHQERVKATVEIVGGSIYAVEMHPKGVLSFLRDVGIASVKLAEIRGVNPLATPRIDALKRRLQ 302
                                    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       271       281       291       301

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

Fold: SIS domain (85)

Superfamily: SIS domain (85)

Family: double-SIS domain (16)

Protein domain: Glucose-6-phosphate isomerase, conjectural (4)

Pyrobaculum aerophilum [TaxId: 13773] (4)

1a	d1x9ia_	A:
1b	d1x9ib_	B:

Asymmetric/Biological Unit

Classes(

)

Architectures( (-)

)

Topologies( (-)

)

Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Alpha Beta (26913)

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

Topology: Rossmann fold (7312)

Homologous Superfamily: Glucose-6-phosphate isomerase like protein; domain 1 (105)

Pyrobaculum aerophilum. Organism_taxid: 13773. (2)

1a	1x9iA01	A:2-163
1b	1x9iB01	B:2-163
1c	1x9iB02	B:164-302
1d	1x9iA02	A:164-301

Asymmetric/Biological Unit(hide GO term definitions)

Chain A,B (PGMI_PYRAE | Q8ZWV0)

molecular function
	GO:0030246	carbohydrate binding	Interacting selectively and non-covalently with any carbohydrate, which includes monosaccharides, oligosaccharides and polysaccharides as well as substances derived from monosaccharides by reduction of the carbonyl group (alditols), by oxidation of one or more hydroxy groups to afford the corresponding aldehydes, ketones, or carboxylic acids, or by replacement of one or more hydroxy group(s) by a hydrogen atom. Cyclitols are generally not regarded as carbohydrates.
	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:0004347	glucose-6-phosphate isomerase activity	Catalysis of the reaction: D-glucose 6-phosphate = D-fructose 6-phosphate.
	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:0004476	mannose-6-phosphate isomerase activity	Catalysis of the reaction: D-mannose 6-phosphate = D-fructose 6-phosphate.
biological process
	GO:0005975	carbohydrate metabolic process	The chemical reactions and pathways involving carbohydrates, any of a group of organic compounds based of the general formula Cx(H2O)y. Includes the formation of carbohydrate derivatives by the addition of a carbohydrate residue to another molecule.
	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.

Asymmetric/Biological Unit
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	Cis Peptide Bonds
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	PGMI_PYRAE \| Q8ZWV0	:	1tzb 1tzc 1x9h

1tzb	NATIVE STRUCTURE
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1x9h

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