Helix-turn-helix A recurring motif found in many DNA-binding proteins, in which two α-helical segments are linked by a short hairpin turn; the two segments are 34 apart, which allows them to fit into adjoining major grooves in DNA.
3 Superclass: Helix-turn-helix
3.1 Class: Homeo domain
3.1.1 Family: Homeo domain only; includes Ubx
3.1.2 Family: POU domain factors; includes Oct
3.1.3 Family: Homeo domain with LIM region
3.1.4 Family: homeo domain plus zinc finger motifs ...
sense of Heart[anatomy of human heart ] [ control of human heart ] [ fish heart ] [ frog and lizard hearts ] [ squid hearts ] Heat receptors Heat transport HeLa cells Helicase Helicobacter pylori[genome] [adaptation to stomach] Helix-turn-helix ...
Helix-turn-helix motifs (← links)
Organelles (← links)
Starter trna (← links)
Eukaryote (← links)
Secretory protein (← links)
Archaea (← links)
Archaebacteria (← links)
Messenger rnas (← links)
Organelle (← links) ...
Homeodomain
A 3-D model of a protein with a homeodomain, a "helix-turn-helix" motif that acts as a transcription factor by binding directly to DNA to turn on other genes.
View QuickTime Movie ...
 See also: Trans, Protein, Proteins, DNA, Molecule
  
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