The Coatomer protein complex subunit beta 2 (COPB2) is involved in the formation of the COPI coatomer protein complex and is responsible for the transport of vesicles between the Golgi apparatus and the endoplasmic reticulum.

Seven coat proteins have been identified, and they represent subunits of a complex known as coatomer. The subunits are designated alpha-COP, beta-COP, beta-prime-COP, gamma-COP, delta-COP, epsilon-COP, and zeta-COP.

Coatomer subunit beta is a protein that is encoded by the COPB2 gene in humans. [5][6] The Golgi coatomer complex (see MIM 601924) constitutes the coat of non-clathrin-coated vesicles and is essential for Golgi budding and vesicular trafficking. It consists of 7 protein subunits, including COPB2. [supplied by OMIM] [6]

Here we describe a novel subunit of the coatomer complex, beta'-COP. This subunit occurs in amounts stoichiometric to the established COPs both in the coatomer and in nonclathrin-coated vesicles and shows homology to the beta-subunits of trimeric G proteins.

Coatomer is a cytosolic protein complex that forms the coat of COP I- coated transport vesicles. In our attempt to analyze the physical and functional interactions between its seven subunits (coat proteins, [COPs] alpha-zeta), we engaged in a program to clone and characterize the individual coatomer subunits.

Jan 1, 2018 · Here, we applied this method to identify differentially expressed proteins (such as coatomer subunit beta 2 [COPB2]) and evaluated the functions and molecular mechanisms of these proteins in prostate cancer (PCA) cell proliferation.

Jan 31, 2019 · In the present analysis, we show that the beta and beta’ subunits have major differences in their domain organization. Human COPI beta subunit consists of an N-terminal “adaptin N” domain followed by a “Coatomer b Cpla” and a “Coatomer beta C” domain.

Dec 24, 2024 · Seven coat proteins have been identified, and they represent subunits of a complex known as coatomer. The subunits are designated alpha-COP, beta-COP, beta-prime-COP, gamma-COP, delta-COP, epsilon-COP, and zeta-COP. The alpha-COP, encoded by COPA, shares high sequence similarity with RET1P, …

Coatomer is a soluble macromolecular complex involved in membrane traffic through the Golgi complex and contains seven nonidentical protein subunits (α, β, β′, γ, δ, ε, and ζ) termed coat proteins (COPs).

Jun 8, 2021 · The Coatomer protein complex subunit beta 2 (COPB2) is involved in the formation of the COPI coatomer protein complex and is responsible for the transport of vesicles between the Golgi apparatus and the endoplasmic reticulum.