Home (Amphipathic)
Home  
 
 
Home » Biology » Amphipathic


 

Amphipathic

Biology Amp resistanceAmplification

Amphipathic: A molecule that has both a hydrophobic and a hydrophilic part.
Analogy: A similarity due to convergent evolution (common function) but not due to having a common ancestor (bat's wings and bird's wings). See also homology.

 


amphipathic molecule
A molecule that has both a hydrophilic region and a hydrophobic region.
anabolic steroids ...

Amphipathic molecule A molecule, such as a membrane lipid, that contains both a hydrophobic and a hydrophilic moiety.

[edit] Amphipathic character
Due to its polar nature, the head of a phospholipid is hydrophilic (attracted to water); the lipophilic (or often known as hydrophobic) tails are not attracted to water.

amphipathic Adjective to describe a molecule with one part soluble in water (polar) and another part insoluble in water (nonpolar).
amphipods A group of small, laterally compressed crustaceans that includes beach hoppers and others.

An aggregate of amphipathic molecules in water, with the nonpolar portions in the interior and the polar portions at the exterior surface, exposed to water.
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ...

Such sequences form amphipathic a-helices, which assemble into helical bundles via knobs-into-holes interdigitation of residues from neighbouring helices.

(Science: cell biology) amphipathic, surface active, molecules with polar (water soluble) and nonpolar hydrophobic) domains. They bind strongly to hydrophobic molecules or molecular domains to confer water solubility.

transmembrane proteins - amphipathic proteins that extend through the bilayer with part of their mass on both sides of the bilayer
acetyl coenzvme A (acetylCoA)-small water-soluble molecule that carries acetyl groups in cells.

The substitution Arg173----Cys in the AIMilano dramatically alters the amphipathic nature of the modified alpha-helical fragment of apoprotein AI. The association rate with lipids is accelerated by an increased exposure of hydrophobic residues.

See also: Protein, Molecule, Proteins, Class, Cell