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(-) Description

Title :  SUBSTITUTING HYDROPHOBIC RESIDUES FOR A BURIED SALT BRIDGE ENHANCES PROTEIN STABILITY BUT DOES NOT REDUCE CONFORMATIONAL SPECIFICITY
 
Authors :  J. F. Schildbach, C. D. Waldburger, R. T. Sauer
Date :  06 Oct 94  (Deposition) - 26 Jan 95  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.40
Chains :  Asym. Unit :  A,B,C,D,E,F
Biol. Unit 1:  A,B  (1x)
Biol. Unit 2:  E,F  (1x)
Biol. Unit 3:  C,D  (1x)
Keywords :  Transcription Regulation, Hyperstable Mutant (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  C. D. Waldburger, J. F. Schildbach, R. T. Sauer
Are Buried Salt Bridges Important For Protein Stability And Conformational Specificity?
Nat. Struct. Biol. V. 2 122 1995
PubMed-ID: 7749916  |  Reference-DOI: 10.1038/NSB0295-122
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - ARC REPRESSOR
    Chains: A, B, C, D, E, F
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Taxid: 562
    Gene: MUTATED ARC GENE
    Organism Scientific: ENTEROBACTERIA PHAGE P22
    Organism Taxid: 10754

 Structural Features

(-) Chains, Units

  123456
Asymmetric Unit : ABCDEF
Biological Unit 1 (1x): AB    
Biological Unit 2 (1x):     EF
Biological Unit 3 (1x):   CD  

Summary Information (see also Sequences/Alignments below)

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

(no "Ligand,Modified Residues,Ions" information available for 1MYL)

(-) Sites  (0, 0)

(no "Site" information available for 1MYL)

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1MYL)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1MYL)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1MYL)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 1MYL)

(-) Exons   (0, 0)

(no "Exon" information available for 1MYL)

(-) 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:45
 aligned with RARC_BPP22 | P03050 from UniProtKB/Swiss-Prot  Length:53

    Alignment length:45
                                    15        25        35        45     
            RARC_BPP22    6 KMPQFNLRWPREVLDLVRKVAEENGRSVNSEIYQRVMESFKKEGR 50
               SCOP domains d1myla_ A: Arc repressor                      SCOP domains
               CATH domains 1mylA00 A:6-50 Met repressor-like             CATH domains
               Pfam domains --------------------------------------------- Pfam domains
         Sec.struct. author ...eeeee.hhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------- PROSITE
                 Transcript --------------------------------------------- Transcript
                  1myl A  6 KMPQFNLRWPREVLDLVRKVAEENGMSVNSYIYQLVMESFKKEGR 50
                                    15        25        35        45     


Chain B from PDB  Type:PROTEIN  Length:40
 aligned with RARC_BPP22 | P03050 from UniProtKB/Swiss-Prot  Length:53

    Alignment length:40
                                    16        26        36        46
            RARC_BPP22    7 MPQFNLRWPREVLDLVRKVAEENGRSVNSEIYQRVMESFK 46
               SCOP domains d1mylb_ B: Arc repressor                 SCOP domains
               CATH domains 1mylB00 B:7-46 Met repressor-like        CATH domains
               Pfam domains ---------------------------------------- Pfam domains
         Sec.struct. author ..eeeee.hhhhhhhhhhhhhh...hhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------- PROSITE
                 Transcript ---------------------------------------- Transcript
                  1myl B  7 MPQFNLRWPREVLDLVRKVAEENGMSVNSYIYQLVMESFK 46
                                    16        26        36        46


Chain C from PDB  Type:PROTEIN  Length:45
 aligned with RARC_BPP22 | P03050 from UniProtKB/Swiss-Prot  Length:53

    Alignment length:45
                                    16        26        36        46     
            RARC_BPP22    7 MPQFNLRWPREVLDLVRKVAEENGRSVNSEIYQRVMESFKKEGRI 51
               SCOP domains d1mylc_ C: Arc repressor                      SCOP domains
               CATH domains 1mylC00 C:7-51 Met repressor-like             CATH domains
               Pfam domains --------------------------------------------- Pfam domains
         Sec.struct. author ..eeeee.hhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhh... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------- PROSITE
                 Transcript --------------------------------------------- Transcript
                  1myl C  7 MPQFNLRWPREVLDLVRKVAEENGMSVNSYIYQLVMESFKKEGRI 51
                                    16        26        36        46     


Chain D from PDB  Type:PROTEIN  Length:45
 aligned with RARC_BPP22 | P03050 from UniProtKB/Swiss-Prot  Length:53

    Alignment length:45
                                    16        26        36        46     
            RARC_BPP22    7 MPQFNLRWPREVLDLVRKVAEENGRSVNSEIYQRVMESFKKEGRI 51
               SCOP domains d1myld_ D: Arc repressor                      SCOP domains
               CATH domains 1mylD00 D:7-51 Met repressor-like             CATH domains
               Pfam domains --------------------------------------------- Pfam domains
         Sec.struct. author ..eeeee.hhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhh... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------- PROSITE
                 Transcript --------------------------------------------- Transcript
                  1myl D  7 MPQFNLRWPREVLDLVRKVAEENGMSVNSYIYQLVMESFKKEGRI 51
                                    16        26        36        46     


Chain E from PDB  Type:PROTEIN  Length:41
 aligned with RARC_BPP22 | P03050 from UniProtKB/Swiss-Prot  Length:53

    Alignment length:41
                                    16        26        36        46 
            RARC_BPP22    7 MPQFNLRWPREVLDLVRKVAEENGRSVNSEIYQRVMESFKK 47
               SCOP domains d1myle_ E: Arc repressor                  SCOP domains
               CATH domains 1mylE00 E:7-47 Met repressor-like         CATH domains
               Pfam domains ----------------------------------------- Pfam domains
         Sec.struct. author ..eeeee.hhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ----------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------- PROSITE
                 Transcript ----------------------------------------- Transcript
                  1myl E  7 MPQFNLRWPREVLDLVRKVAEENGMSVNSYIYQLVMESFKK 47
                                    16        26        36        46 


Chain F from PDB  Type:PROTEIN  Length:40
 aligned with RARC_BPP22 | P03050 from UniProtKB/Swiss-Prot  Length:53

    Alignment length:40
                                    16        26        36        46
            RARC_BPP22    7 MPQFNLRWPREVLDLVRKVAEENGRSVNSEIYQRVMESFK 46
               SCOP domains d1mylf_ F: Arc repressor                 SCOP domains
               CATH domains 1mylF00 F:7-46 Met repressor-like        CATH domains
           Pfam domains (1) Arc-1mylF01 F:7-46                       Pfam domains (1)
           Pfam domains (2) Arc-1mylF02 F:7-46                       Pfam domains (2)
           Pfam domains (3) Arc-1mylF03 F:7-46                       Pfam domains (3)
           Pfam domains (4) Arc-1mylF04 F:7-46                       Pfam domains (4)
           Pfam domains (5) Arc-1mylF05 F:7-46                       Pfam domains (5)
           Pfam domains (6) Arc-1mylF06 F:7-46                       Pfam domains (6)
         Sec.struct. author ..eeeee.hhhhhhhhhhhhhhh..hhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------- PROSITE
                 Transcript ---------------------------------------- Transcript
                  1myl F  7 MPQFNLRWPREVLDLVRKVAEENGMSVNSYIYQLVMESFK 46
                                    16        26        36        46
   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, 6)

Asymmetric Unit
(-)
Class: All alpha proteins (14657)

(-) CATH Domains  (1, 6)

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

(-) Pfam Domains  (1, 6)

Asymmetric Unit
(-)
Clan: Met_repress (26)

(-) Gene Ontology  (3, 3)

Asymmetric Unit(hide GO term definitions)
Chain A,B,C,D,E,F   (RARC_BPP22 | P03050)
molecular function
    GO:0003677    DNA binding    Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).
biological process
    GO:0006355    regulation of transcription, DNA-templated    Any process that modulates the frequency, rate or extent of cellular DNA-templated transcription.
    GO:0006351    transcription, DNA-templated    The cellular synthesis of RNA on a template of DNA.

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 Related Entries

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

UniProtKB/Swiss-Prot
        RARC_BPP22 | P03050: 1arq 1arr 1b28 1baz 1bdt 1bdv 1myk 1nla 1par 1qtg 1u9p

(-) Related Entries Specified in the PDB File

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