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Description

Title :   CRYSTAL STRUCTURE OF CHEY MUTANT D53A OF HELICOBACTER PYLORI

Authors :   K. H. Lam, T. K. Ling, S. W. Au

Date :   12 Apr 09 (Deposition) - 09 Mar 10 (Release) - 12 May 10 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.20

Chains :   Asym./Biol. Unit : A

Keywords :   Chemotaxis, Sulfate-Bound Chey, Cytoplasm, Flagellar Rotation, Magnesium, Metal-Binding, Phosphoprotein, Two-Component Regulatory System, Signaling Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   K. H. Lam, T. K. Ling, S. W. Au
Crystal Structure Of Activated Chey1 From Helicobacter Pylori.
J. Bacteriol. V. 192 2324 2010
PubMed-ID: 20207758 | Reference-DOI: 10.1128/JB.00603-09

Compounds

Molecule 1 - CHEMOTAXIS PROTEIN CHEY HOMOLOG
	Chains	:	A
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Plasmid	:	PGEX-6-2
	Expression System Strain	:	BL21
	Expression System Taxid	:	562
	Expression System Vector Type	:	PLASMID
	Gene	:	CHEY1
	Mutation	:	YES
	Organism Scientific	:	HELICOBACTER PYLORI
	Organism Taxid	:	85962
	Strain	:	26695
	Synonym	:	CHEMOTAXIS PROTEIN CHEY1

Structural Features

Chains, Units

		1
Asymmetric/Biological Unit	:	A

Summary Information (see also Sequences/Alignments below)

Ligands, Modified Residues, Ions (2, 3)

Asymmetric/Biological Unit (2, 3)

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

Sites (3, 3)

Asymmetric Unit (3, 3)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	MET A:12 , LEU A:29 , GLU A:30 , LYS A:105 , HOH A:129	BINDING SITE FOR RESIDUE MG A 125
2	AC2	SOFTWARE	LYS A:2 , ASP A:46 , LYS A:48 , GLY A:87 , LYS A:88 , ASN A:100	BINDING SITE FOR RESIDUE SO4 A 126
3	AC3	SOFTWARE	LYS A:17 , ALA A:53 , TRP A:54 , ASN A:55 , THR A:83 , THR A:84 , LYS A:105 , HOH A:137 , HOH A:142 , HOH A:157	BINDING SITE FOR RESIDUE SO4 A 127

SS Bonds (0, 0)

(no "SS Bond" information available for 3H1F)

Cis Peptide Bonds (1, 1)

Asymmetric/Biological Unit

No.	Residues
1	Lys A:105	-	Pro A:106

Sequence-Structure Mapping

SAPs(SNPs)/Variants (1, 1)

Asymmetric/Biological Unit (1, 1)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_CHEY_HELPY_001 *	T	122	A	CHEY_HELPY	---	---	A	T	122	A
	* ID not provided by source

SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

PROSITE Motifs (1, 1)

Asymmetric/Biological Unit (1, 1)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	RESPONSE_REGULATORY	PS50110	Response regulatory domain profile.	CHEY_HELPY	2-120	1	A:2-120

Exons (0, 0)

(no "Exon" information available for 3H1F)

Sequences/Alignments

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:123
 aligned with CHEY_HELPY | P71403 from UniProtKB/Swiss-Prot  Length:124

    Alignment length:123
                                    10        20        30        40        50        60        70        80        90       100       110       120   
           CHEY_HELPY     1 MKLLVVDDSSTMRRIIKNTLSRLGYEDVLEAEHGVEAWEKLDANADTKVLITDWNMPEMNGLDLVKKVRSDSRFKEIPIIMITTEGGKAEVITALKAGVNNYIVKPFTPQVLKEKLEVVLGTN 123
               SCOP domains d3h1fa_ A: automated matches                                                                                                SCOP domains
               CATH domains 3h1fA00 A:1-123  [code=3.40.50.2300, no name defined]                                                                       CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeee..hhhhhhhhhhhhhhh....eeee.hhhhhhhhhhhh....eeee.......hhhhhhhhhhh........eeeee...hhhhhhhhhhhh..eeee...hhhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------A- SAPs(SNPs)
                    PROSITE -RESPONSE_REGULATORY  PDB: A:2-120 UniProt: 2-120                                                                       --- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------- Transcript
                 3h1f A   1 MKLLVVDDSSTMRRIIKNTLSRLGYEDVLEAEHGVEAWEKLDANADTKVLITAWNMPEMNGLDLVKKVRSDSRFKEIPIIMITTEGGKAEVITALKAGVNNYIVKPFTPQVLKEKLEVVLGTN 123
                                    10        20        30        40        50        60        70        80        90       100       110       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 '\|'

Classification and Annotation

SCOP Domains (1, 1)

Asymmetric/Biological Unit

Classes(

)

Folds(

)

Superfamilies( (-)

)

Families(

)

Protein Domains( (-)

)

Organisms( (-)

)

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

Fold: Flavodoxin-like (1057)

Superfamily: CheY-like (258)

Family: automated matches (82)

Protein domain: automated matches (82)

Helicobacter pylori [TaxId: 85962] (3)

d3h1fa_

CATH Domains (1, 1)

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: [code=3.40.50.2300, no name defined] (308)

Helicobacter pylori. Organism_taxid: 85962. Strain: 26695. (4)

3h1fA00

A:1-123

Pfam Domains (0, 0)

(no "Pfam Domain" information available for 3H1F)

Gene Ontology (6, 6)

Asymmetric/Biological Unit(hide GO term definitions)

Chain A (CHEY_HELPY | P71403)

molecular function
	GO:0046872	metal ion binding	Interacting selectively and non-covalently with any metal ion.
	GO:0005515	protein binding	Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
biological process
	GO:0097588	archaeal or bacterial-type flagellum-dependent cell motility	Cell motility due to movement of bacterial- or archaeal-type flagella.
	GO:0006935	chemotaxis	The directed movement of a motile cell or organism, or the directed growth of a cell guided by a specific chemical concentration gradient. Movement may be towards a higher concentration (positive chemotaxis) or towards a lower concentration (negative chemotaxis).
	GO:0000160	phosphorelay signal transduction system	A conserved series of molecular signals found in prokaryotes and eukaryotes; involves autophosphorylation of a histidine kinase and the transfer of the phosphate group to an aspartate that then acts as a phospho-donor to response regulator proteins.
cellular component
	GO:0005737	cytoplasm	All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.

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	Cis Peptide Bonds
		Lys A:105 - Pro A:106	[ RasMol ]

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Related Entries

Entries Sharing at Least One Protein Chain (UniProt ID)

UniProtKB/Swiss-Prot
	CHEY_HELPY \| P71403	:	3gwg 3h1e 3h1g

Related Entries Specified in the PDB File

3gwg 3h1e 3h1g