Feeling the groove.
Variation in ways in which proteins can identify and lock on to genes due for transcription is illuminated by studies of the Arc repressor, which has a beta-sheet, rather than alpha-helical, recognition motif.
Riddihough
G
G
D001426:Bacterial Proteins / Q000737:chemistry / Q000378:metabolism; D004247:DNA / Q000378:metabolism*; D004268:DNA-Binding Proteins / Q000737:chemistry / Q000235:genetics / Q000378:metabolism*; D016296:Mutagenesis; D009875:Operator Regions, Genetic; D017433:Protein Structure, Secondary; D012097:Repressor Proteins / Q000737:chemistry / Q000235:genetics / Q000378:metabolism*; D035181:TATA-Box Binding Protein; D014157:Transcription Factors / Q000737:chemistry / Q000378:metabolism; D014764:Viral Proteins / Q000737:chemistry / Q000235:genetics / Q000378:metabolism*; D054334:Viral Regulatory and Accessory Proteins
D001426:Bacterial Proteins; D004268:DNA-Binding Proteins; D012097:Repressor Proteins; D035181:TATA-Box Binding Protein; D014157:Transcription Factors; D014764:Viral Proteins; D054334:Viral Regulatory and Accessory Proteins; C040330:histone-like protein HU, bacteria; C016649:phage repressor proteins; D004247:DNA