PDB entry 7b4b

View 7b4b on RCSB PDB site
Description: Structural basis of reactivation of oncogenic p53 mutants by a small molecule: methylene quinuclidinone (MQ). Human p53DBD-R273C mutant bound to MQ: R273C-MQ (I)
Class: transcription
Keywords: tumor suppressor, DNA binding protein, protein DNA complex, michael acceptor, michael reaction, protein-drug complex, protein-DNA-drug complex, loop-sheet-helix motif, DNA target, activator, transcription, hoogsteen base-pairing
Deposited on 2020-12-02, released 2021-12-08
The last revision prior to the SCOPe 2.08 freeze date was dated 2021-12-15, with a file datestamp of 2021-12-10.
Experiment type: XRAY
Resolution: 1.76 Å
R-factor: N/A
AEROSPACI score: 0.46 (click here for full SPACI score report)

Chains and heterogens:

  • Chain 'A':
    Compound: Cellular tumor antigen p53
    Species: Homo sapiens [TaxId:9606]
    Gene: TP53, P53
    Database cross-references and differences (RAF-indexed):
    • Uniprot P04637 (0-199)
      • engineered mutation (179)
    Domains in SCOPe 2.08: d7b4ba_
  • Chain 'B':
    Compound: Cellular tumor antigen p53
    Species: Homo sapiens [TaxId:9606]
    Gene: TP53, P53
    Database cross-references and differences (RAF-indexed):
    • Uniprot P04637 (0-199)
      • engineered mutation (179)
    Domains in SCOPe 2.08: d7b4bb_
  • Chain 'C':
    Compound: Cellular tumor antigen p53
    Species: Homo sapiens [TaxId:9606]
    Gene: TP53, P53
    Database cross-references and differences (RAF-indexed):
    • Uniprot P04637 (0-199)
      • engineered mutation (179)
    Domains in SCOPe 2.08: d7b4bc_
  • Chain 'D':
    Compound: Cellular tumor antigen p53
    Species: Homo sapiens [TaxId:9606]
    Gene: TP53, P53
    Database cross-references and differences (RAF-indexed):
    • Uniprot P04637 (0-199)
      • engineered mutation (179)
    Domains in SCOPe 2.08: d7b4bd_
  • Heterogens: QN8, QNN, ZN, EDO, PEG, HOH

PDB Chain Sequences:

  • Chain 'A':
    Sequence, based on SEQRES records: (download) 
    >7b4bA (A:)
sssvpsqktyqgsygfrlgflhsgtaksvtctyspalnkmfcqlaktcpvqlwvdstppp
gtrvramaiykqsqhmtevvrrcphhercsdsdglappqhlirvegnlrveylddrntfr
hsvvvpyeppevgsdcttihynymcnsscmggmnrrpiltiitledssgnllgrnsfevc
vcacpgrdrrteeenlrkkg

    Sequence, based on observed residues (ATOM records): (download) 
    >7b4bA (A:)
vpsqktyqgsygfrlgflhsgtaksvtctyspalnkmfcqlaktcpvqlwvdstpppgtr
vramaiykqsqhmtevvrrcphhercdglappqhlirvegnlrveylddrntfrhsvvvp
yeppevgsdcttihynymcnsscmggmnrrpiltiitledssgnllgrnsfevcvcacpg
rdrrteeenl

  • Chain 'B':
    Sequence, based on SEQRES records: (download) 
    >7b4bB (B:)
sssvpsqktyqgsygfrlgflhsgtaksvtctyspalnkmfcqlaktcpvqlwvdstppp
gtrvramaiykqsqhmtevvrrcphhercsdsdglappqhlirvegnlrveylddrntfr
hsvvvpyeppevgsdcttihynymcnsscmggmnrrpiltiitledssgnllgrnsfevc
vcacpgrdrrteeenlrkkg

    Sequence, based on observed residues (ATOM records): (download) 
    >7b4bB (B:)
vpsqktyqgsygfrlgflhsgtaksvtctyspalnkmfcqlaktcpvqlwvdstpppgtr
vramaiykqsqhmtevvrrcphhercsdsdglappqhlirvegnlrveylddrntfrhsv
vvpyeppevgsdcttihynymcnsscmggmnrrpiltiitledssgnllgrnsfevcvca
cpgrdrrteee

  • Chain 'C':
    Sequence, based on SEQRES records: (download) 
    >7b4bC (C:)
sssvpsqktyqgsygfrlgflhsgtaksvtctyspalnkmfcqlaktcpvqlwvdstppp
gtrvramaiykqsqhmtevvrrcphhercsdsdglappqhlirvegnlrveylddrntfr
hsvvvpyeppevgsdcttihynymcnsscmggmnrrpiltiitledssgnllgrnsfevc
vcacpgrdrrteeenlrkkg

    Sequence, based on observed residues (ATOM records): (download) 
    >7b4bC (C:)
vpsqktyqgsygfrlgflhsgtaksvtctyspalnkmfcqlaktcpvqlwvdstpppgtr
vramaiykqsqhmtevvrrcphhercdglappqhlirvegnlrveylddrntfrhsvvvp
yeppevgsdcttihynymcnsscmggmnrrpiltiitledssgnllgrnsfevcvcacpg
rdrrteeen

  • Chain 'D':
    Sequence, based on SEQRES records: (download) 
    >7b4bD (D:)
sssvpsqktyqgsygfrlgflhsgtaksvtctyspalnkmfcqlaktcpvqlwvdstppp
gtrvramaiykqsqhmtevvrrcphhercsdsdglappqhlirvegnlrveylddrntfr
hsvvvpyeppevgsdcttihynymcnsscmggmnrrpiltiitledssgnllgrnsfevc
vcacpgrdrrteeenlrkkg

    Sequence, based on observed residues (ATOM records): (download) 
    >7b4bD (D:)
vpsqktyqgsygfrlgflhsgtaksvtctyspalnkmfcqlaktcpvqlwvdstpppgtr
vramaiykqsqhmtevvrrcphhercsdglappqhlirvegnlrveylddrntfrhsvvv
pyeppdcttihynymcnsscmggmnrrpiltiitledssgnllgrnsfevcvcacpgrdr
rteeen