biology, a protein subunit is a polypeptide chain or single protein molecule that assembles (or "coassembles") with others to form a protein complex. Large...

(γ) subunits. "Small" G proteins (20-25kDa) belong to the Ras superfamily of small GTPases. These proteins are homologous to the alpha (α) subunit found...

Gi protein alpha subunit is a family of heterotrimeric G protein alpha subunits. This family is also commonly called the Gi/o (Gi /Go ) family or Gi/o/z/t...

other protein molecules to form a protein complex. Large assemblies of proteins such as viruses often use a small number of types of protein subunits as...

Gq protein alpha subunit is a family of heterotrimeric G protein alpha subunits. This family is also commonly called the Gq/11 (Gq/G11) family or Gq/11/14/15...

the structure of proteins which are themselves composed of two or more smaller protein chains (also referred to as subunits). Protein quaternary structure...

Look up subunit in Wiktionary, the free dictionary. Subunit may refer to: Subunit HIV vaccine, a class of HIV vaccine Protein subunit, a protein molecule...

and large ribosomal subunits. Each subunit consists of one or more ribosomal RNA molecules and many ribosomal proteins (r-proteins). The ribosomes and...

then activate an associated G protein by exchanging the GDP bound to the G protein for a GTP. The G protein's α subunit, together with the bound GTP,...

AMP-activated protein kinase (protein kinase A). AMPK is a heterotrimeric protein complex that is formed by α, β, and γ subunits. Each of these three subunits takes...