A second protein marker of caveolae: caveolin-2 / 中国医学科学杂志(英文版)
Chinese Medical Sciences Journal
; (4): 119-124, 2010.
Article
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| WPRIM
| ID: wpr-299446
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WPRO
ABSTRACT
Caveolin-2, a protein about 20 kD, is a major component of the inner surface of caveolae, small invaginations of the plasma membrane. Similar with caveolin-1 and caveolin-3, it serves as a protein marker of caveolae. Caveolin-1 and -2 are located next to each other at 7q31.1 on human chromosome, the proteins encoded are co-localized and form a stable hetero-oligomeric complex, distributing similarly in tissue and cultured cells. Caveolin-3 is located on different chromosomes but confirmed to interact with caveolin-2. Caveolin-2 is similar to caveolin-1 in many respects but differs from the latter in functional domains, especially in G-protein binding domain and caveolin scaffolding domain. The mRNAs of both caveolin-1 and caveolin-2 are most abundantly expressed in white adipose tissue and are induced during differentiation of 3T3-L1 cells to adipocytes. Caveolin-2-deficient mice demonstrate clear pulmonary defects, with little or no change in caveolin-1 expression and caveolae formation, suggesting that caveolin-2 plays a selective role in lung functions. Caveolin-2 is also involved in lipid metabolism and human cancers.
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Índice:
WPRIM
Asunto principal:
Cromosomas Humanos Par 7
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Biomarcadores
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Caveolas
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Caveolina 2
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Genética
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Metabolismo
Límite:
Humans
Idioma:
En
Revista:
Chinese Medical Sciences Journal
Año:
2010
Tipo del documento:
Article