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(-) Description

Title :  CRYSTAL STRUCTURE OF A PARALLEL 6-HELIX COILED COIL
 
Authors :  N. R. Zaccai, B. H. C. Chi, D. N. Woolfson, R. L. Brady
Date :  16 Mar 11  (Deposition) - 16 Nov 11  (Release) - 30 Nov 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.20
Chains :  Asym. Unit :  A,B,C
Biol. Unit 1:  A,B,C  (2x)
Biol. Unit 2:  A,B,C  (4x)
Keywords :  Parallel Hexamer, Kih Interactions, Hydrophobic Channel, Synthetic Biology, De Novo Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  N. R. Zaccai, B. Chi, A. R. Thomson, A. L. Boyle, G. J. Bartlett, M. Bruning, N. Linden, R. B. Sessions, P. J. Booth, R. L. Brady, D. N. Woolfson
A De Novo Peptide Hexamer With A Mutable Channel.
Nat. Chem. Biol. V. 7 935 2011
PubMed-ID: 22037471  |  Reference-DOI: 10.1038/NCHEMBIO.692

(-) Compounds

Molecule 1 - CCHEX-PHI22 HELIX
    Chains: A, B, C
    Engineered: YES
    Fragment: HELIX FROM COILED COIL DOMAIN
    Other Details: PEPTIDE SYNTHESIS CARRIED OUT ACCORDING TO STANDARD FMOC SPPS PROTOCOLS
    Synthetic: YES

 Structural Features

(-) Chains, Units

  123
Asymmetric Unit : ABC
Biological Unit 1 (2x): ABC
Biological Unit 2 (4x): ABC

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (5, 14)

Asymmetric Unit (5, 14)
No.NameCountTypeFull Name
1ACE3Mod. Amino AcidACETYL GROUP
2CL2Ligand/IonCHLORIDE ION
3EDO2Ligand/Ion1,2-ETHANEDIOL
4NA4Ligand/IonSODIUM ION
5PHI3Mod. Amino AcidIODO-PHENYLALANINE
Biological Unit 1 (3, 16)
No.NameCountTypeFull Name
1ACE6Mod. Amino AcidACETYL GROUP
2CL-1Ligand/IonCHLORIDE ION
3EDO4Ligand/Ion1,2-ETHANEDIOL
4NA-1Ligand/IonSODIUM ION
5PHI6Mod. Amino AcidIODO-PHENYLALANINE
Biological Unit 2 (3, 32)
No.NameCountTypeFull Name
1ACE12Mod. Amino AcidACETYL GROUP
2CL-1Ligand/IonCHLORIDE ION
3EDO8Ligand/Ion1,2-ETHANEDIOL
4NA-1Ligand/IonSODIUM ION
5PHI12Mod. Amino AcidIODO-PHENYLALANINE

(-) Sites  (8, 8)

Asymmetric Unit (8, 8)
No.NameEvidenceResiduesDescription
1AC1SOFTWARELYS A:25 , GLN A:29 , LYS B:18BINDING SITE FOR RESIDUE CL A 34
2AC2SOFTWARELYS A:25 , LYS B:18BINDING SITE FOR RESIDUE NA B 34
3AC3SOFTWARELYS A:18 , PHI B:22 , LYS B:25 , ALA B:26 , GLN B:29 , HOH B:76BINDING SITE FOR RESIDUE EDO B 35
4AC4SOFTWAREHOH B:85 , LYS C:11 , HOH C:69 , HOH C:80BINDING SITE FOR RESIDUE NA C 34
5AC5SOFTWARELYS A:25 , GLU C:23BINDING SITE FOR RESIDUE NA C 35
6AC6SOFTWAREALA B:19 , PHI B:22 , GLU B:23 , HOH C:78BINDING SITE FOR RESIDUE EDO C 36
7AC7SOFTWARENA C:38BINDING SITE FOR RESIDUE CL C 37
8AC8SOFTWAREPHI C:22 , CL C:37BINDING SITE FOR RESIDUE NA C 38

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 3R3K)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 3R3K)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 3R3K)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 3R3K)

(-) Exons   (0, 0)

(no "Exon" information available for 3R3K)

(-) Sequences/Alignments

Asymmetric 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:31
                                                              
               SCOP domains ------------------------------- SCOP domains
               CATH domains ------------------------------- CATH domains
               Pfam domains ------------------------------- Pfam domains
         Sec.struct. author .hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------- PROSITE
                 Transcript ------------------------------- Transcript
                  3r3k A  0 xGELKAIAQELKAIAKELKAIAfELKAIAQG 30
                            |        9        19  |     29 
                            |                    22-PHI    
                            0-ACE                          


Chain B from PDB  Type:PROTEIN  Length:31
                                                              
               SCOP domains ------------------------------- SCOP domains
               CATH domains ------------------------------- CATH domains
               Pfam domains ------------------------------- Pfam domains
         Sec.struct. author .hhhhhhhhhhhhhhhhhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------- PROSITE
                 Transcript ------------------------------- Transcript
                  3r3k B  0 xGELKAIAQELKAIAKELKAIAfELKAIAQG 30
                            |        9        19  |     29 
                            0-ACE                22-PHI    


Chain C from PDB  Type:PROTEIN  Length:31
                                                              
               SCOP domains ------------------------------- SCOP domains
               CATH domains ------------------------------- CATH domains
               Pfam domains ------------------------------- Pfam domains
         Sec.struct. author .hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------- PROSITE
                 Transcript ------------------------------- Transcript
                  3r3k C  0 xGELKAIAQELKAIAKELKAIAfELKAIAQG 30
                            |        9        19  |     29 
                            0-ACE                22-PHI
   Legend:   → Mismatch (orange background)
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  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 3R3K)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 3R3K)

(-) Pfam Domains  (0, 0)

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(-) Gene Ontology  (0, 0)

Asymmetric Unit(hide GO term definitions)
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 Related Entries

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(-) Related Entries Specified in the PDB File

3r46 3r47 3r48