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(-) Description

Title :  CRYSTAL STRUCTURE ANALYSIS OF KAIB FROM PCC7120
 
Authors :  R. G. Garces, N. Wu, W. Gillon, E. F. Pai
Date :  12 Oct 03  (Deposition) - 04 May 04  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.20
Chains :  Asym. Unit :  A,B
Biol. Unit 1:  A,B  (1x)
Biol. Unit 2:  A,B  (2x)
Keywords :  Alpha-Beta Meander, Protein Dimer, Gene Regulation (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  R. G. Garces, N. Wu, W. Gillon, E. F. Pai
Anabaena Circadian Clock Proteins Kaia And Kaib Reveal A Potential Common Binding Site To Their Partner Kaic
Embo J. V. 23 1688 2004
PubMed-ID: 15071498  |  Reference-DOI: 10.1038/SJ.EMBOJ.7600190

(-) Compounds

Molecule 1 - CIRCADIAN OSCILLATION REGULATOR
    Chains: A, B
    Engineered: YES
    Expression System: ESCHERICHIA COLI BL21
    Expression System Plasmid: PET32
    Expression System Strain: BL21
    Expression System Taxid: 511693
    Expression System Vector Type: PLASMID
    Gene: KAIB
    Organism Scientific: NOSTOC SP.
    Organism Taxid: 103690
    Strain: PCC 7120
    Synonym: KAIB

 Structural Features

(-) Chains, Units

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

Summary Information (see also Sequences/Alignments below)

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

(no "Ligand,Modified Residues,Ions" information available for 1R5P)

(-) Sites  (0, 0)

(no "Site" information available for 1R5P)

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1R5P)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1R5P)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1R5P)

(-) PROSITE Motifs  (0, 0)

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(-) Exons   (0, 0)

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(-) 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:90
 aligned with KAIB_NOSS1 | Q8YT41 from UniProtKB/Swiss-Prot  Length:108

    Alignment length:90
                                    16        26        36        46        56        66        76        86        96
          KAIB_NOSS1      7 TYVLKLYVAGNTPNSVRALKTLKNILEQEFQGIYALKVIDVLKNPQLAEEDKILATPTLSKILPPPVRKIIGDLSDRERVLIGLDLLYEE   96
               SCOP domains d1r5pa_ A: Circadian oscillation regulator KaiB                                            SCOP domains
               CATH domains 1r5pA00 A:7-96 Glutaredoxin                                                                CATH domains
               Pfam domains ------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author .eeeeeee...hhhhhhhhhhhhhhhhhhhh..eeeeeee............eehhhhhhhhhhhhhhhhhhhhhhh...eeeeeeee.. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------ Transcript
                1r5p A    7 TYVLKLYVAGNTPNSVRALKTLKNILEQEFQGIYALKVIDVLKNPQLAEEDKILATPTLSKILPPPVRKIIGDLSDRERVLIGLDLLYEE   96
                                    16        26        36        46        56        66        76        86        96


Chain B from PDB  Type:PROTEIN  Length:93
 aligned with KAIB_NOSS1 | Q8YT41 from UniProtKB/Swiss-Prot  Length:108

    Alignment length:93
                                    15        25        35        45        55        65        75        85        95   
          KAIB_NOSS1      6 KTYVLKLYVAGNTPNSVRALKTLKNILEQEFQGIYALKVIDVLKNPQLAEEDKILATPTLSKILPPPVRKIIGDLSDRERVLIGLDLLYEELT   98
               SCOP domains d1r5pb_ B: Circadian oscillation regulator KaiB                                               SCOP domains
               CATH domains 1r5pB00 B:1006-1098 Glutaredoxin                                                              CATH domains
           Pfam domains (1) -----KaiB-1r5pB01 B:1011-1092                                                          ------ Pfam domains (1)
           Pfam domains (2) -----KaiB-1r5pB02 B:1011-1092                                                          ------ Pfam domains (2)
         Sec.struct. author .eeeeeeee...hhhhhhhhhhhhhhhhhhh...eeeeeee...........ee.hhhhhhh..hhhhhhhhhhhhhh...eeeeeeeee... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------- Transcript
                1r5p B 1006 KTYVLKLYVAGNTPNSVRALKTLKNILEQEFQGIYALKVIDVLKNPQLAEEDKILATPTLSKILPPPVRKIIGDLSDRERVLIGLDLLYEELT 1098
                                  1015      1025      1035      1045      1055      1065      1075      1085      1095
   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  (1, 2)

Asymmetric Unit
(-)
Class: Alpha and beta proteins (a/b) (23833)

(-) CATH Domains  (1, 2)

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

(-) Pfam Domains  (1, 2)

Asymmetric Unit
(-)
Clan: Thioredoxin (367)

(-) Gene Ontology  (2, 2)

Asymmetric Unit(hide GO term definitions)
Chain A,B   (KAIB_NOSS1 | Q8YT41)
biological process
    GO:0007623    circadian rhythm    Any biological process in an organism that recurs with a regularity of approximately 24 hours.
    GO:0048511    rhythmic process    Any process pertinent to the generation and maintenance of rhythms in the physiology of an organism.

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(-) Related Entries Specified in the PDB File

1r5q CRYSTAL STRUCTURE ANALYSIS OF KAI A FROM PCC7120