What are proteins?

Some articles on proteins, protein:

GTPase-activating Protein - Disease Associations and Clinical Relevance
... comes from its regulation of the crucial G proteins ... Many of these G proteins are involved in cell cycling, and as such are known proto-oncogenes ... The Ras superfamily of G proteins, for example, has been associated with many cancers because Ras is a common downstream target of many growth ...
Podocyte
... The Bowman's capsule filters blood, holding back large molecules such as proteins, and passing through small molecules such as water, salts, and sugar, as the first step in forming urine ... Several proteins are required for the foot projections to wrap around the capillaries and function ... When infants are born with certain defects in these proteins, such as nephrin and CD2AP, their kidneys cannot function ...
VNN2
... Vascular non-inflammatory molecule 2 is a protein that in humans is encoded by the VNN2 gene ... This gene product is a member of the Vanin family of proteins which share extensive sequence similarity with each other, and also with biotinidase ... includes secreted and membrane-associated proteins, a few of which have been reported to participate in hematopoietic cell trafficking ...
Acetylation of Proteins - Lysine Acetylation and Deacetylation
... Proteins are typically acetylated on lysine residues and this reaction relies on acetyl-coenzyme A as the acetyl group donor ... In histone acetylation and deacetylation, histone proteins are acetylated and deacetylated on lysine residues in the N-terminal tail as part of gene regulation ... (HDAC) activity, although HATs and HDACs can modify the acetylation status of non-histone proteins as well ...
GTPase-activating Protein - Mechanism
... The activity of G proteins comes from their ability to bind guanosine triphosphate (GTP) ... Binding of GTP inherently changes the activity of the G proteins through some kind of conformational change in the G proteins which makes them more active, such as the loss of ... In their more active state, they can then bind other proteins and turn on downstream signaling targets more easily, but what is interesting about G proteins in regards ...

Famous quotes containing the word proteins:

    Civilization means food and literature all round. Beefsteaks and fiction magazines for all. First-class proteins for the body, fourth-class love-stories for the spirit.
    Aldous Huxley (1894–1963)