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(-) Description

Title :  CRYSTAL STRUCTURE OF A SOLUBLE CHEMORECEPTOR FROM THERMOTOGA MARITIMA
 
Authors :  A. M. Pollard, A. M. Bilwes, B. R. Crane
Date :  06 Feb 09  (Deposition) - 28 Jul 09  (Release) - 28 Jul 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.17
Chains :  Asym./Biol. Unit :  A,B
Keywords :  Four-Helix Bundle, Methyl-Accepting Chemotaxis Protein, Signaling Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  A. M. Pollard, A. M. Bilwes, B. R. Crane
The Structure Of A Soluble Chemoreceptor Suggests A Mechanism For Propagating Conformational Signals.
Biochemistry V. 48 1936 2009
PubMed-ID: 19149470  |  Reference-DOI: 10.1021/BI801727M
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - METHYL-ACCEPTING CHEMOTAXIS PROTEIN
    Chains: A, B
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PET28A
    Expression System Strain: B21 (DE3)
    Expression System Taxid: 562
    Gene: TM0014, TM_0014
    Organism Scientific: THERMOTOGA MARITIMA
    Organism Taxid: 2336

 Structural Features

(-) Chains, Units

  12
Asymmetric/Biological Unit : AB

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (0, 0)

(no "Ligand,Modified Residues,Ions" information available for 3G67)

(-) Sites  (0, 0)

(no "Site" information available for 3G67)

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 3G67)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 3G67)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 3G67)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 3G67)

(-) Exons   (0, 0)

(no "Exon" information available for 3G67)

(-) 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:213
 aligned with Q7DFA3_THEMA | Q7DFA3 from UniProtKB/TrEMBL  Length:278

    Alignment length:213
                                    50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250   
         Q7DFA3_THEMA    41 RIEEVKERFVNLNRLFQELVGDFQAKSDQLVSVIQDMEKISENIMEELKKSGTNVDQIVERVKEASSQIGETLENIRSIEKLIQNIMRIARETNILALNATIEAARAGEAGKGFMIVANEVQNLSNETNEVTKQIVEKAREILESSQRSLENLEFMANLFETVGKTLQNMVRFMENNVKLLQEVRNSLDTSKESLSEKSAEIDSATKVLEETA 253
               SCOP domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains 3g67A00 A:41-253 Methyl-accepting chemotaxis protein                                                                                                                                                                  CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3g67 A  41 RIEEVKERFVNLNRLFQELVGDFQAKSDQLVSVIQDMEKISENIMEELKKSGTNVDQIVERVKEASSQIGETLENIRSIEKLIQNIMRIARETNILALNATIEAARAGEAGKGFMIVANEVQNLSNETNEVTKQIVEKAREILESSQRSLENLEFMANLFETVGKTLQNMVRFMENNVKLLQEVRNSLDTSKESLSEKSAEIDSATKVLEETA 253
                                    50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250   


Chain B from PDB  Type:PROTEIN  Length:212
 aligned with Q7DFA3_THEMA | Q7DFA3 from UniProtKB/TrEMBL  Length:278

    Alignment length:212
                                    50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250  
         Q7DFA3_THEMA    41 RIEEVKERFVNLNRLFQELVGDFQAKSDQLVSVIQDMEKISENIMEELKKSGTNVDQIVERVKEASSQIGETLENIRSIEKLIQNIMRIARETNILALNATIEAARAGEAGKGFMIVANEVQNLSNETNEVTKQIVEKAREILESSQRSLENLEFMANLFETVGKTLQNMVRFMENNVKLLQEVRNSLDTSKESLSEKSAEIDSATKVLEET 252
               SCOP domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains 3g67B00 B:41-252 Methyl-accepting chemotaxis protein                                                                                                                                                                 CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .................................................................................................................................................................................................................... Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3g67 B  41 RIEEVKERFVNLNRLFQELVGDFQAKSDQLVSVIQDMEKISENIMEELKKSGTNVDQIVERVKEASSQIGETLENIRSIEKLIQNIMRIARETNILALNATIEAARAGEAGKGFMIVANEVQNLSNETNEVTKQIVEKAREILESSQRSLENLEFMANLFETVGKTLQNMVRFMENNVKLLQEVRNSLDTSKESLSEKSAEIDSATKVLEET 252
                                    50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250
   Legend:   → Mismatch (orange background)
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  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  (0, 0)

(no "SCOP Domain" information available for 3G67)

(-) CATH Domains  (1, 2)

Asymmetric/Biological Unit
(-)
Class: Mainly Alpha (13335)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 3G67)

(-) Gene Ontology  (3, 3)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A,B   (Q7DFA3_THEMA | Q7DFA3)
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: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:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.

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 Related Entries

(-) Entries Sharing at Least One Protein Chain (UniProt ID)

UniProtKB/TrEMBL
        Q7DFA3_THEMA | Q7DFA3: 3g6b 3ur1 4jpb

(-) Related Entries Specified in the PDB File

3g6b CRYSTAL STRUCTURE OF A SOLUBLE CHEMORECEPTOR FROM THERMOTOGA MARITIMA ASN217ILE MUTANT