PDB: 1par Compound: Arc repressor and a synthetic 22-mer DNA (21 base- Classification: GENE-REGULATING PROTEIN Entry date in PDB: 1994-07-31 Resolution [Å]: 2.60 R-Factor: 0.225

CHAIN: A SWISS-PROT/TREMBL: P03050    KEYWORD: 3D-structure    DNA-binding    Repressor    Transcription regulation    SCOP: a.43.1.1 All alpha proteins    Ribbon-helix-helix    Ribbon-helix-helix    Arc/Mnt-like phage repressors    Arc repressor    Salmonella bacteriophage P22 GO:  DNA binding    transcriptional repressor activity    CHAIN: B SWISS-PROT/TREMBL: P03050    KEYWORD: 3D-structure    DNA-binding    Repressor    Transcription regulation    SCOP: a.43.1.1 All alpha proteins    Ribbon-helix-helix    Ribbon-helix-helix    Arc/Mnt-like phage repressors    Arc repressor    Salmonella bacteriophage P22 GO:  DNA binding    transcriptional repressor activity    CHAIN: C SWISS-PROT/TREMBL: P03050    KEYWORD: 3D-structure    DNA-binding    Repressor    Transcription regulation    SCOP: a.43.1.1 All alpha proteins    Ribbon-helix-helix    Ribbon-helix-helix    Arc/Mnt-like phage repressors    Arc repressor    Salmonella bacteriophage P22 GO:  DNA binding    transcriptional repressor activity    CHAIN: D SWISS-PROT/TREMBL: P03050    KEYWORD: 3D-structure    DNA-binding    Repressor    Transcription regulation    SCOP: a.43.1.1 All alpha proteins    Ribbon-helix-helix    Ribbon-helix-helix    Arc/Mnt-like phage repressors    Arc repressor    Salmonella bacteriophage P22 GO:  DNA binding    transcriptional repressor activity

Image Source: PDB

1baz A - percentage of sequence identity: 98
1bdt A - percentage of sequence identity: 100
1myl A - percentage of sequence identity: 94