|
Title: why do DNA-binding proteins share common three dimensional motifs? Post by: stevehs on Nov 21, 2013 why do DNA-binding proteins share common three dimensional motifs?
How do these common motifs allow proteins to locate specific DNA consensus sequences? Title: Re: why do DNA-binding proteins share common three dimensional motifs? Post by: adnlozano on Nov 21, 2013 HI is 1
Title: Re: why do DNA-binding proteins share common three dimensional motifs? Post by: padre on Nov 21, 2013 I suppose you can say it's conserved. DNA binding proteins adopt a set of common three-dimensional structures called motifs. Within these three dimensional motifs different proteins will have different specific amino acids that will recognize specific H-bond donor and acceptor sites on DNA. In this way different DNA binding proteins can recognize very specific DNA sequences.
(http://www.ks.uiuc.edu/Research/pro_DNA/ster_horm_rec/binding.gif) |