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Title :   CRYSTAL STRUCTURE OF THE PHOSPHORYLATED P1 DOMAIN OF CHEA3 IN COMPLEX WITH CHEY6 FROM R. SPHAEROIDES

Authors :   C. H. Bell, S. L. Porter, J. P. Armitage, D. I. Stuart

Date :   06 Dec 09 (Deposition) - 16 Feb 10 (Release) - 15 Jun 16 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.80

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

Keywords :   Protein-Protein Interaction, Histidine Kinase, Response Regulator, Phosphorylation, Specificity, Kinase, Transferase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   C. H. Bell, S. L. Porter, A. Strawson, D. I. Stuart, J. P. Armitage
Using Structural Information To Change The Phosphotransfer Specificity Of A Two-Component Chemotaxis Signalling Comple
Plos Biol. V. 8 00306 2010
PubMed-ID: 20161720 | Reference-DOI: 10.1371/JOURNAL.PBIO.1000306

Compounds

Molecule 1 - PUTATIVE HISTIDINE PROTEIN KINASE
	Chains	:	A
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Plasmid	:	PQE60
	Expression System Strain	:	M15
	Expression System Taxid	:	562
	Expression System Vector Type	:	PLASMID
	Fragment	:	UNP RESIDUES 2-135
	Gene	:	CHEA3
	Organism Common	:	RHODOPSEUDOMONAS SPHAEROIDES
	Organism Scientific	:	RHODOBACTER SPHAEROIDES
	Organism Taxid	:	1063
	Strain	:	WS8N
	Synonym	:	CHEA3

Molecule 2 - CHEY6 PROTEIN
	Chains	:	B
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Plasmid	:	PQE60
	Expression System Strain	:	M15
	Expression System Taxid	:	562
	Expression System Vector Type	:	PLASMID
	Fragment	:	UNP RESIDUES 2-134
	Gene	:	CHEY6
	Organism Common	:	RHODOPSEUDOMONAS SPHAEROIDES
	Organism Scientific	:	RHODOBACTER SPHAEROIDES
	Organism Taxid	:	1063
	Strain	:	WS8N

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (1, 1)

Sites (0, 0)

SS Bonds (0, 0)

Cis Peptide Bonds (1, 1)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (0, 0)

Exons (0, 0)

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:128
 aligned with Q8KLS0_RHOSH | Q8KLS0 from UniProtKB/TrEMBL  Length:1095

    Alignment length:128
                                    17        27        37        47        57        67        77        87        97       107       117       127        
         Q8KLS0_RHOSH     8 MDEIWALYADDGAQALDAMEASLLALQAGEDAAAHVGPLFRAVHTFKGNSRVLGLSVVESRAHLCEDLIGLVRDAGVPMDGEIVEILLFASDTLRAMLEETAASRADVEGTGSEALMDQLRSKIARCS 135
               SCOP domains -------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains --Hpt-3kyiA01 A:10-111                                                                                  ------------------------ Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3kyi A   8 MDEIWALYADDGAQALDAMEASLLALQAGEDAAAHVGPLFRAVhTFKGNSRVLGLSVVESRAHLCEDLIGLVRDAGVPMDGEIVEILLFASDTLRAMLEETAASRADVEGTGSEALMDQLRSKIARCS 135
                                    17        27        37        47   |    57        67        77        87        97       107       117       127        
                                                                      51-NEP

Chain B from PDB  Type:PROTEIN  Length:104
 aligned with Q8KLS1_RHOSH | Q8KLS1 from UniProtKB/TrEMBL  Length:134

    Alignment length:134
                                    10        20        30        40        50        60        70        80        90       100       110       120       130    
         Q8KLS1_RHOSH     1 MPYNVMIVDDAAMMRLYIASFIKTLPDFKVVAQAANGQEALDKLAAQPNVDLILLDIEMPVMDGMEFLRHAKLKTRAKICMLSSVAVSGSPHAARARELGADGVVAKPSGTVSHDLEEKTGGELARTMRTLMAA 134
               SCOP domains d3kyib_ B: automated matches                                                                                                           SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ----Response_reg-3kyiB01 B:5-110                                                                                         ------------- Pfam domains
         Sec.struct. author ..eeeeee..hhhhhhhhhhhhhhh..eeeeeee.hhhhhhhhhhhh..eeeeeee...------hhhhhhhhhh..eeeeee.-------------.....eeee....-----------hhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3kyi B   1 SPYNVMIVDDAAMMRLYIASFIKTLPDFKVVAQAANGQEALDKLAAQPNVDLILLNIEM------EFLRHAKLKTRAKICMLAS-------------ELGADGVVAKPSG-----------GELARTMRTLMAA 134
                                    10        20        30        40        50        |-     |  70        80   |     -       100       110         - |     130    
                                                                                     59     66                84            98         110         122

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)

CATH Domains (0, 0)

Pfam Domains (2, 2)

Gene Ontology (7, 9)

Asymmetric/Biological Unit(hide GO term definitions)

Chain A (Q8KLS0_RHOSH | Q8KLS0)

molecular function
	GO:0016301	kinase activity	Catalysis of the transfer of a phosphate group, usually from ATP, to a substrate molecule.
	GO:0004871	signal transducer activity	Conveys a signal across a cell to trigger a change in cell function or state. A signal is a physical entity or change in state that is used to transfer information in order to trigger a response.
biological process
	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.
	GO:0016310	phosphorylation	The process of introducing a phosphate group into a molecule, usually with the formation of a phosphoric ester, a phosphoric anhydride or a phosphoric amide.
	GO:0007165	signal transduction	The cellular process in which a signal is conveyed to trigger a change in the activity or state of a cell. Signal transduction begins with reception of a signal (e.g. a ligand binding to a receptor or receptor activation by a stimulus such as light), or for signal transduction in the absence of ligand, signal-withdrawal or the activity of a constitutively active receptor. Signal transduction ends with regulation of a downstream cellular process, e.g. regulation of transcription or regulation of a metabolic process. Signal transduction covers signaling from receptors located on the surface of the cell and signaling via molecules located within the cell. For signaling between cells, signal transduction is restricted to events at and within the receiving cell.
cellular component
	GO:0005622	intracellular	The living contents of a cell; the matter contained within (but not including) the plasma membrane, usually taken to exclude large vacuoles and masses of secretory or ingested material. In eukaryotes it includes the nucleus and cytoplasm.

Chain B (Q8KLS1_RHOSH | Q8KLS1)

biological process
	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:0005622	intracellular	The living contents of a cell; the matter contained within (but not including) the plasma membrane, usually taken to exclude large vacuoles and masses of secretory or ingested material. In eukaryotes it includes the nucleus and cytoplasm.

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