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(-) Description

Title :  LAMBDA CRO MUTANT Q27P/A29S/K32Q AT 1.4 A IN SPACE GROUP C2
 
Authors :  B. M. Hall, S. A. Roberts, M. H. Cordes
Date :  14 Feb 07  (Deposition) - 08 Jan 08  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.40
Chains :  Asym. Unit :  A,B
Biol. Unit 1:  A,B  (1x)
Biol. Unit 2:  A (2x),B (2x)
Keywords :  Transcription Factor, Helix-Turn-Helix, Bacteriophage, Flexibility, Transcription (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  B. M. Hall, S. A. Roberts, A. Heroux, M. H. Cordes
Two Structures Of A Lambda Cro Variant Highlight Dimer Flexibility But Disfavor Major Dimer Distortions Upon Specific Binding Of Cognate Dna.
J. Mol. Biol. V. 375 802 2008
PubMed-ID: 18054042  |  Reference-DOI: 10.1016/J.JMB.2007.10.082

(-) Compounds

Molecule 1 - PHAGE LAMBDA CRO
    Chains: A, B
    Engineered: YES
    Expression System: ESCHERICHIA COLI BL21(DE3)
    Expression System Plasmid: PET21B
    Expression System Strain: BL21(DE3)
    Expression System Taxid: 469008
    Expression System Vector Type: PLASMID
    Gene: CRO
    Mutation: YES
    Organism Scientific: ENTEROBACTERIA PHAGE LAMBDA
    Organism Taxid: 10710

 Structural Features

(-) Chains, Units

  12
Asymmetric Unit : AB
Biological Unit 1 (1x): AB
Biological Unit 2 (2x): A (2x)B (2x)

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (4, 11)

Asymmetric Unit (4, 11)
No.NameCountTypeFull Name
1ACT4Ligand/IonACETATE ION
2CL1Ligand/IonCHLORIDE ION
3LI2Ligand/IonLITHIUM ION
4SO44Ligand/IonSULFATE ION
Biological Unit 1 (2, 8)
No.NameCountTypeFull Name
1ACT4Ligand/IonACETATE ION
2CL-1Ligand/IonCHLORIDE ION
3LI-1Ligand/IonLITHIUM ION
4SO44Ligand/IonSULFATE ION
Biological Unit 2 (2, 10)
No.NameCountTypeFull Name
1ACT4Ligand/IonACETATE ION
2CL-1Ligand/IonCHLORIDE ION
3LI-1Ligand/IonLITHIUM ION
4SO46Ligand/IonSULFATE ION

(-) Sites  (11, 11)

Asymmetric Unit (11, 11)
No.NameEvidenceResiduesDescription
01AC1SOFTWAREARG A:13 , THR A:17 , HOH A:216 , HOH A:263BINDING SITE FOR RESIDUE SO4 A 204
02AC2SOFTWAREMET A:12 , ARG A:13 , GLN A:16 , ASN A:31 , HOH A:228 , ARG B:13 , HOH B:229BINDING SITE FOR RESIDUE ACT A 205
03AC3SOFTWAREHIS A:35 , HOH A:253 , ARG B:13 , HOH B:255BINDING SITE FOR RESIDUE ACT A 208
04AC4SOFTWAREGLN A:3 , ARG A:13 , PHE A:14 , ASP B:9 , ACT B:206 , LI B:210 , HOH B:241 , HOH B:256BINDING SITE FOR RESIDUE SO4 B 201
05AC5SOFTWAREGLY B:15 , GLN B:16 , THR B:17 , HOH B:233BINDING SITE FOR RESIDUE SO4 B 202
06AC6SOFTWAREARG A:38 , HOH A:217 , PHE B:58 , PRO B:59 , SER B:60 , HOH B:266 , HOH B:291BINDING SITE FOR RESIDUE SO4 B 203
07AC7SOFTWAREGLN A:3 , ARG A:13 , ILE B:5 , ASP B:9 , SO4 B:201 , LI B:210 , HOH B:214BINDING SITE FOR RESIDUE ACT B 206
08AC8SOFTWAREASP A:9 , HOH A:250 , ILE B:5 , ARG B:13 , LI B:211 , HOH B:255 , HOH B:288BINDING SITE FOR RESIDUE ACT B 207
09AC9SOFTWARESER B:28 , GLN B:32 , HIS B:35BINDING SITE FOR RESIDUE CL B 209
10BC1SOFTWAREGLN A:3 , ILE B:5 , THR B:6 , ASP B:9 , SO4 B:201 , ACT B:206BINDING SITE FOR RESIDUE LI B 210
11BC2SOFTWAREILE A:5 , THR A:6 , ASP A:9 , GLN B:3 , ACT B:207BINDING SITE FOR RESIDUE LI B 211

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (2, 2)

Asymmetric Unit
No.Residues
1Phe A:58 -Pro A:59
2Phe B:58 -Pro B:59

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 2ECS)

(-) Exons   (0, 0)

(no "Exon" information available for 2ECS)

(-) 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:60
 aligned with RCRO_LAMBD | P03040 from UniProtKB/Swiss-Prot  Length:66

    Alignment length:60
                                    10        20        30        40        50        60
            RCRO_LAMBD    1 MEQRITLKDYAMRFGQTKTAKDLGVYQSAINKAIHAGRKIFLTINADGSVYAEEVKPFPS 60
               SCOP domains d2ecsa_ A: cro lambda repressor                              SCOP domains
               CATH domains 2ecsA00 A:1-60 CRO Repressor                                 CATH domains
               Pfam domains ------------------------------------------------------------ Pfam domains
         Sec.struct. author ..eeeehhhhhhhhhhhhhhhhhh.hhhhhhhhhhh...eeeee.....eeeeeeeee.. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------ Transcript
                  2ecs A  1 MEQRITLKDYAMRFGQTKTAKDLGVYPSSINQAIHAGRKIFLTINADGSVYAEEVKPFPS 60
                                    10        20        30        40        50        60


Chain B from PDB  Type:PROTEIN  Length:60
 aligned with RCRO_LAMBD | P03040 from UniProtKB/Swiss-Prot  Length:66

    Alignment length:60
                                    10        20        30        40        50        60
            RCRO_LAMBD    1 MEQRITLKDYAMRFGQTKTAKDLGVYQSAINKAIHAGRKIFLTINADGSVYAEEVKPFPS 60
               SCOP domains d2ecsb_ B: cro lambda repressor                              SCOP domains
               CATH domains 2ecsB00 B:1-60 CRO Repressor                                 CATH domains
               Pfam domains ------------------------------------------------------------ Pfam domains
         Sec.struct. author ..eeeehhhhhhhhhhhhhhhhhh.hhhhhhhhhhhh.eeeeee.....eeeeeeeee.. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------ Transcript
                  2ecs B  1 MEQRITLKDYAMRFGQTKTAKDLGVYPSSINQAIHAGRKIFLTINADGSVYAEEVKPFPS 60
                                    10        20        30        40        50        60
   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 Unit
(-)
Class: All alpha proteins (14657)

(-) CATH Domains  (1, 2)

Asymmetric Unit
(-)
Class: Alpha Beta (26913)

(-) Pfam Domains  (0, 0)

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

(-) Gene Ontology  (3, 3)

Asymmetric Unit(hide GO term definitions)
Chain A,B   (RCRO_LAMBD | P03040)
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
        RCRO_LAMBD | P03040: 1cop 1d1l 1d1m 1orc 2a63 2orc 2ovg 3orc 4cro 5cro 6cro

(-) Related Entries Specified in the PDB File

2ovg