Cholera toxin is comprised of 5 copies of the B subunit that bind to GM1+ gangliosides on lipid rafts, and a single copy of the A subunit that enters the cell via endocytosis, subsequently increasing cAMP levels.
The method is proposed for building a fault-tolerant system area network (SAN) as a flat network comprised of several copies of the source network.
The histone octamer is comprised of two copies of each of the four core histone proteins: H2A, H2B, H3, and H4 [5], [7], [8], [8].
α-Nrx has a large extracellular region comprised of multiple copies of laminin, neurexin, sex-hormone-binding globulin (LNS) domains and epidermal growth factor (EGF) modules, while that of β-Nrx has but a single LNS domain.
Nucleosomes are composed of an octamer of histone proteins comprised of two copies each of H2A, H2B, H3, and H4 [ 2].
This fundamental unit, the nucleosome, is comprised of two copies of the histone proteins H3, H4, H2A and H2B creating a bead-like structure.
ESTs of a barley metallothionein-like protein (MT) homologue were highly expressed in the root (RT1) library and were clustered into six TCs comprised of 139 copies.
This genetic model is the result of the integration of a 15-kb array, comprised of 2 3 copies of a promoter-less LacZ/β-neo transgene, 1.6 kb upstream of the Gtl2 promoter (Paulsen et al. 2001).
The nucleosome consists of DNA wrapped around a histone octamer comprised of duplicate copies of the core histones H2A, H2B, H3, and H4, while the H1 histone acts as a linker between nucleosomes.
Co-expression in N. benthamiana of the CPMV coat protein precursor along with the 24K proteinase using pEAQ vectors (Fig. 2a) results in the efficient assembly and accumulation of empty virus-like particles (eVLPs) comprised of 60 copies each of the processed large and small coat proteins [ 21].
