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(-) Description

Title :  CRYSTAL STRUCTURE OF THE CYTOPLASMIC DOMAIN OF A BACTERIAL CHEMORECEPTOR FROM THERMOTOGA MARITIMA
 
Authors :  S. Y. Park, A. M. Bilwes, B. R. Crane
Date :  13 Mar 06  (Deposition) - 18 Apr 06  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.50
Chains :  Asym./Biol. Unit :  A,B
Keywords :  Chemotaxis, Receptor, Four-Helix Bundle, Signal Transduction, Methyl-Accepting Receptor (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  S. Y. Park, P. P. Borbat, G. Gonzalez-Bonet, J. Bhatnagar, A. M. Pollard, J. H. Freed, A. M. Bilwes, B. R. Crane
Reconstruction Of The Chemotaxis Receptor-Kinase Assembly
Nat. Struct. Mol. Biol. V. 13 400 2006
PubMed-ID: 16622408  |  Reference-DOI: 10.1038/NSMB1085

(-) Compounds

Molecule 1 - METHYL-ACCEPTING CHEMOTAXIS PROTEIN
    Chains: A
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PET28A
    Expression System Strain: BL21(DE3)
    Expression System Taxid: 469008
    Expression System Vector Type: PLASMID
    Fragment: CYTOPLASMIC DOMAIN, RESIDUES 225-529
    Organism Scientific: THERMOTOGA MARITIMA
    Organism Taxid: 2336
    Synonym: METHYL-ACCEPTING RECEPTOR MCP1143
 
Molecule 2 - METHYL-ACCEPTING CHEMOTAXIS PROTEIN
    Chains: B
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PET28A
    Expression System Strain: BL21(DE3)
    Expression System Taxid: 469008
    Expression System Vector Type: PLASMID
    Fragment: CYTOPLASMIC DOMAIN, RESIDUES 225-529
    Organism Scientific: THERMOTOGA MARITIMA
    Organism Taxid: 2336
    Synonym: METHYL-ACCEPTING RECEPTOR MCP1143

 Structural Features

(-) Chains, Units

  12
Asymmetric/Biological Unit : AB

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 2)

Asymmetric/Biological Unit (1, 2)
No.NameCountTypeFull Name
1PB2Ligand/IonLEAD (II) ION

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREGLU A:471 , GLU B:282BINDING SITE FOR RESIDUE PB A1530
2AC2SOFTWAREGLU A:506 , GLU B:247BINDING SITE FOR RESIDUE PB A1531

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 2CH7)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 2CH7)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 2CH7)

(-) PROSITE Motifs  (1, 2)

Asymmetric/Biological Unit (1, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1CHEMOTAXIS_TRANSDUC_2PS50111 Bacterial chemotaxis sensory transducers domain profile.MCP2_THEMA244-480
 		  2A:244-480
B:244-480

(-) Exons   (0, 0)

(no "Exon" information available for 2CH7)

(-) 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:309
 aligned with MCP2_THEMA | Q9X0M7 from UniProtKB/Swiss-Prot  Length:530

    Alignment length:309
                                   230       240       250       260       270       280       290       300       310       320       330       340       350       360       370       380       390       400       410       420       430       440       450       460       470       480       490       500       510       520         
           MCP2_THEMA   221 RNNLKDVQTETFSVAESIEEISKANEEITNQLLGISKEMDNISTRIESISASVQETTAGSEEISSATKNIADSAQQAASFADQSTQLAKEAGDALKKVIEVTRMISNSAKDVERVVESFQKGAEEITSFVETINAIAEQTNLLALNAAIEAARAGEAGRGFAVVADEIRKLAEESQQASENVRRVVNEIRSIAEDAGKVSSEITARVEEGTKLADEADEKLNSIVGAVERINEMLQNIAAAIEEQTAAVDEITTAMTENAKNAEEITNSVKEVNARLQEISASTEEVTSRVQTIRENVQMLKEIVARYK 529
               SCOP domains ----d2ch7a1 A:225-529 Methyl-accepting chemotaxis protein 2, MCP2                                                                                                                                                                                                                                                     SCOP domains
               CATH domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhh Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -----------------------CHEMOTAXIS_TRANSDUC_2  PDB: A:244-480 UniProt: 244-480                                                                                                                                                                                       ------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2ch7 A 221 GSHMKDVQTETFSVAESIEEISKANEEITNQLLGISKEMDNISTRIESISASVQETTAGSEEISSATKNIADSAQQAASFADQSTQLAKEAGDALKKVIEVTRMISNSAKDVERVVESFQKGAEEITSFVETINAIAEQTNLLALNAAIEAARAGEAGRGFAVVADEIRKLAEESQQASENVRRVVNEIRSIAEDAGKVSSEITARVEEGTKLADEADEKLNSIVGAVERINEMLQNIAAAIEEQTAAVDEITTAMTENAKNAEEITNSVKEVNARLQEISASTEEVTSRVQTIRENVQMLKEIVARYK 529
                                   230       240       250       260       270       280       290       300       310       320       330       340       350       360       370       380       390       400       410       420       430       440       450       460       470       480       490       500       510       520         


Chain B from PDB  Type:PROTEIN  Length:308
 aligned with MCP2_THEMA | Q9X0M7 from UniProtKB/Swiss-Prot  Length:530

    Alignment length:308
                                   231       241       251       261       271       281       291       301       311       321       331       341       351       361       371       381       391       401       411       421       431       441       451       461       471       481       491       501       511       521        
           MCP2_THEMA   222 NNLKDVQTETFSVAESIEEISKANEEITNQLLGISKEMDNISTRIESISASVQETTAGSEEISSATKNIADSAQQAASFADQSTQLAKEAGDALKKVIEVTRMISNSAKDVERVVESFQKGAEEITSFVETINAIAEQTNLLALNAAIEAARAGEAGRGFAVVADEIRKLAEESQQASENVRRVVNEIRSIAEDAGKVSSEITARVEEGTKLADEADEKLNSIVGAVERINEMLQNIAAAIEEQTAAVDEITTAMTENAKNAEEITNSVKEVNARLQEISASTEEVTSRVQTIRENVQMLKEIVARYK 529
               SCOP domains ---d2ch7b1 B:225-529 Methyl-accepting chemotaxis protein 2, MCP2                                                                                                                                                                                                                                                     SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------CHEMOTAXIS_TRANSDUC_2  PDB: B:244-480 UniProt: 244-480                                                                                                                                                                                       ------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2ch7 B 222 SHMKDVQTETFSVAESIEEISKANEEITNQLLGISKEMDNISTRIESISASVQETTAGSEEISSATKNIADSAQQAASFADQSTQLAKEAGDALKKVIEVTRMISNSAKDVERVVESFQKGAEEITSFVETINAIAEQTNLLALNAAIEAARAGEAGRGFAVVADEIRKLAEESQQASENVRRVVNEIRSIAEDAGKVSSEITARVEEGTKLADEADEKLNSIVGAVERINEMLQNIAAAIEEQNAAVDEITTAMTENAKNAEEITNSVKEVNARLQEISASTEEVTSRVQTIRENVQMLKEIVARYK 529
                                   231       241       251       261       271       281       291       301       311       321       331       341       351       361       371       381       391       401       411       421       431       441       451       461       471       481       491       501       511       521
   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, 2)

Asymmetric/Biological Unit
(-)
Class: Coiled coil proteins (689)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 2CH7)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 2CH7)

(-) Gene Ontology  (6, 6)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A,B   (MCP2_THEMA | Q9X0M7)
molecular function
    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: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:0016021    integral component of membrane    The component of a membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    GO:0005886    plasma membrane    The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.

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        MCP2_THEMA | Q9X0M7: 3ja6

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