PDB entry 1r23

View 1r23 on RCSB PDB site
Description: Crystal structure of the cyanobacterial metallothionein repressor SmtB in the Zn1-form (one Zn(II) per dimer)
Class: transcription repressor
Keywords: Zinc, DNA binding Transcriptional regulation, winged HTH protein, TRANSCRIPTION REPRESSOR
Deposited on 2003-09-25, released 2004-05-18
The last revision prior to the SCOPe 2.01 freeze date was dated 2009-02-24, with a file datestamp of 2009-03-01.
Experiment type: XRAY
Resolution: 2 Å
R-factor: 0.204
AEROSPACI score: 0.46 (click here for full SPACI score report)

Chains and heterogens:

  • Chain 'A':
    Compound: Transcriptional repressor smtB
    Species: Synechococcus elongatus [TaxId:1140]
    Gene: SMTB
    Database cross-references and differences (RAF-indexed): Domains in SCOPe 2.01: d1r23a_
  • Chain 'B':
    Compound: Transcriptional repressor smtB
    Species: Synechococcus elongatus [TaxId:1140]
    Gene: SMTB
    Database cross-references and differences (RAF-indexed): Domains in SCOPe 2.01: d1r23b_
  • Heterogens: ZN, HOH

PDB Chain Sequences:

  • Chain 'A':
    Sequence, based on SEQRES records: (download) 
    >1r23A (A:)
mtkpvlqdgetvvcqgthaaiaselqaiapevaqslaeffavladpnrlrllsllarsel
cvgdlaqaigvsesavshqlrslrnlrlvsyrkqgrhvyyqlqdhhivalyqnaldhlqe
cr

    Sequence, based on observed residues (ATOM records): (download) 
    >1r23A (A:)
haaiaselqaiapevaqslaeffavladpnrlrllsllarselcvgdlaqaigvsesavs
hqlrslrnlrlvsyrkqgrhvyyqlqdhhivalyqnaldhlqec

  • Chain 'B':
    Sequence, based on SEQRES records: (download) 
    >1r23B (B:)
mtkpvlqdgetvvcqgthaaiaselqaiapevaqslaeffavladpnrlrllsllarsel
cvgdlaqaigvsesavshqlrslrnlrlvsyrkqgrhvyyqlqdhhivalyqnaldhlqe
cr

    Sequence, based on observed residues (ATOM records): (download) 
    >1r23B (B:)
lqaiapevaqslaeffavladpnrlrllsllarselcvgdlaqaigvsesavshqlrslr
nlrlvsyrkqgrhvyyqlqdhhivalyqnaldhlqec