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Title :   CRYSTAL STRUCTURE OF THE N-TERMINAL DOMAIN OF E.COLI HISB- SULFATE COMPLEX.

Authors :   E. S Rangarajan, M. Cygler, A. Matte, Montreal-Kingston Bacterial Structural Genomics Initiative (Bsgi)

Date :   17 Jan 06 (Deposition) - 05 Sep 06 (Release) - 13 Jul 11 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   1.80

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

Keywords :   Histidinol Phosphate Phosphatase, Hisb, Bifunctional Enzyme. , Structural Genomics, Montreal-Kingston Bacterial Structural Genomics Initiative, Bsgi, Hydrolase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   E. S. Rangarajan, A. Proteau, J. Wagner, M. N. Hung, A. Matte, M. Cygler
Structural Snapshots Of Escherichia Coli Histidinol Phosphate Phosphatase Along The Reaction Pathway.
J. Biol. Chem. V. 281 37930 2006
PubMed-ID: 16966333 | Reference-DOI: 10.1074/JBC.M604916200

Molecule 1 - HISTIDINE BIOSYNTHESIS BIFUNCTIONAL PROTEIN HISB
	Chains	:	A, B
	EC Number	:	3.1.3.15
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI BL21(DE3)
	Expression System Strain	:	BL21(DE3)
	Expression System Taxid	:	469008
	Fragment	:	N-TERMINAL DOMAIN, HISTIDINOL-PHOSPHATASE
	Gene	:	HISB
	Organism Scientific	:	ESCHERICHIA COLI
	Organism Taxid	:	83334

		1	2
Asymmetric/Biological Unit	:	A	B

Summary Information (see also Sequences/Alignments below)

Asymmetric/Biological Unit (3, 6)

No.	Name	Count	Type	Full Name
1	MG	3	Ligand/Ion	MAGNESIUM ION
2	SO4	1	Ligand/Ion	SULFATE ION
3	ZN	2	Ligand/Ion	ZINC ION

Asymmetric Unit (6, 6)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	CYS B:94 , HIS B:96 , CYS B:102 , CYS B:104 , ARG B:105	BINDING SITE FOR RESIDUE ZN B 601
2	AC2	SOFTWARE	CYS A:94 , HIS A:96 , CYS A:102 , CYS A:104 , ARG A:105	BINDING SITE FOR RESIDUE ZN A 602
3	AC3	SOFTWARE	ASP A:10 , ASP A:12 , ASP A:131 , HOH A:768 , HOH A:794 , HOH A:799	BINDING SITE FOR RESIDUE MG A 603
4	AC4	SOFTWARE	ASP B:10 , ASP B:12 , ASP B:131 , HOH B:911 , HOH B:916 , HOH B:921	BINDING SITE FOR RESIDUE MG B 604
5	AC5	SOFTWARE	HOH B:692 , HOH B:717 , HOH B:726 , HOH B:727 , HOH B:755 , HOH B:799	BINDING SITE FOR RESIDUE MG B 605
6	AC6	SOFTWARE	ASN B:56 , LYS B:106 , ARG B:132 , THR B:134 , HOH B:672 , HOH B:717 , HOH B:730 , HOH B:731 , HOH B:755 , HOH B:799	BINDING SITE FOR RESIDUE SO4 B 606

(no "SS Bond" information available for 2FPX)

Asymmetric/Biological Unit

No.	Residues
1	Lys A:106	-	Pro A:107
2	Lys B:106	-	Pro B:107

(no "SAP(SNP)/Variant" information available for 2FPX)

(no "PROSITE Motif" information available for 2FPX)

(no "Exon" information available for 2FPX)

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:156
 aligned with HIS7_ECO57 | Q9S5G5 from UniProtKB/Swiss-Prot  Length:355

    Alignment length:162
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161  
           HIS7_ECO57     2 SQKYLFIDRDGTLISEPPSDFQVDRFDKLAFEPGVIPQLLKLQKAGYKLVMITNQDGLGTQSFPQADFDGPHNLMMQIFTSQGVQFDEVLICPHLPADECDCRKPKVKLVERYLAEQAMDRANSYVIGDRATDIQLAENMGINGLRYDRETLNWPMIGEQLT 163
               SCOP domains d2fpxa_ A: Histid  ine biosynthesis bifunctional protein HisB, phosphatase domain                                                                                  SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------ CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author ...eeee..........--.....hhhhh....hhhhhhhhhhhh..eeeeeee.........hhhhhhhhhhhhhhhhhhh...eeeeeee..hhhhh.......hhhhhhhh----.hhhh.eeee.hhhhhhhhhhhh.eeee......hhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 2fpx A   3 SQKYLFIDRDGTLISEP--DFQVDRFDKLAFEPGVIPQLLKLQKAGYKLVMITNQDGLGTQSFPQADFDGPHNLMMQIFTSQGVQFDEVLICPHLPADECDCRKPKVKLVERYL----MDRANSYVIGDRATDIQLAENMGINGLRYDRETLNWPMIGEQLT 164
                                    12      | 22        32        42        52        62        72        82        92       102       112   |   122       132       142       152       162  
                                           19 22                                                                                           116  121

Chain B from PDB  Type:PROTEIN  Length:160
 aligned with HIS7_ECO57 | Q9S5G5 from UniProtKB/Swiss-Prot  Length:355

    Alignment length:163
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152       162   
           HIS7_ECO57     3 QKYLFIDRDGTLISEPPSDFQVDRFDKLAFEPGVIPQLLKLQKAGYKLVMITNQDGLGTQSFPQADFDGPHNLMMQIFTSQGVQFDEVLICPHLPADECDCRKPKVKLVERYLAEQAMDRANSYVIGDRATDIQLAENMGINGLRYDRETLNWPMIGEQLTRR 165
               SCOP domains d2fpxb_ B: Histidine biosynthesis bifunctional protein HisB, phosphatase domain                                                                                     SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeee.................hhhhh....hhhhhhhhhhhh..eeeeeee.........hhhhhhhhhhhhhhhhhhhh..eeeeeee..hhhhh.......hhhhhhhh---..hhhh.eeee.hhhhhhhhhhhh.eeee......hhhhhhhhh... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2fpx B   4 QKYLFIDRDGTLISEPPSDFQVDRFDKLAFEPGVIPQLLKLQKAGYKLVMITNQDGLGTQSFPQADFDGPHNLMMQIFTSQGVQFDEVLICPHLPADECDCRKPKVKLVERYL---AMDRANSYVIGDRATDIQLAENMGINGLRYDRETLNWPMIGEQLTRR 166
                                    13        23        33        43        53        63        73        83        93       103       113  |   |123       133       143       153       163   
                                                                                                                                          116 120

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: HAD-like (349)

Superfamily: HAD-like (349)

Family: Histidinol phosphatase-like (14)

Protein domain: Histidine biosynthesis bifunctional protein HisB, phosphatase domain (5)

Escherichia coli [TaxId: 562] (5)

1a	d2fpxa_	A:
1b	d2fpxb_	B:

(no "CATH Domain" information available for 2FPX)

(no "Pfam Domain" information available for 2FPX)

Asymmetric/Biological Unit(hide GO term definitions)

Chain A,B (HIS7_ECO57 | Q9S5G5)

molecular function
	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:0004401	histidinol-phosphatase activity	Catalysis of the reaction: L-histidinol phosphate + H(2)O = L-histidinol + phosphate.
	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:0004424	imidazoleglycerol-phosphate dehydratase activity	Catalysis of the reaction: D-erythro-1-(imidazol-4-yl)glycerol 3-phosphate = 3-(imidazol-4-yl)-2-oxopropyl phosphate + H(2)O.
	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:0046872	metal ion binding	Interacting selectively and non-covalently with any metal ion.
	GO:0016791	phosphatase activity	Catalysis of the hydrolysis of phosphoric monoesters, releasing inorganic phosphate.
biological process
	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:0016311	dephosphorylation	The process of removing one or more phosphoric (ester or anhydride) residues from a molecule.
	GO:0000105	histidine biosynthetic process	The chemical reactions and pathways resulting in the formation of histidine, 2-amino-3-(1H-imidazol-4-yl)propanoic acid.
	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.
cellular component
	GO:0005737	cytoplasm	All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.

Asymmetric/Biological Unit
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	Sites
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		AC2	[ RasMol ]	+environment [ RasMol ]
		AC3	[ RasMol ]	+environment [ RasMol ]
		AC4	[ RasMol ]	+environment [ RasMol ]
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	Cis Peptide Bonds
		Lys A:106 - Pro A:107	[ RasMol ]
		Lys B:106 - Pro B:107	[ RasMol ]

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Description

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Structural Features

Chains, Units

Ligands, Modified Residues, Ions (3, 6)

Sites (6, 6)

SS Bonds (0, 0)

Cis Peptide Bonds (2, 2)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

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Exons (0, 0)

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