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Rabbit Anti-CRYBA2 antibody
Crystallins are separated into two classes: taxon-specific, or enzyme, and ubiquitous. The latter class constitutes the major proteins of the vertebrate eye, which function to maintain the transparency and refractive index of the lens. Since lens central fiber cells lose their nuclei during development, these crystallins are made and then retained throughout life, making them extremely stable proteins. Mammalian lens crystallins are divided into alpha, beta, and gamma families; beta and gamma crystallins are also defined as a superfamily. Alpha and beta families are further divided into acidic and basic groups. Seven protein regions exist in crystallins: four homologous motifs, a connecting peptide, and N- and SLCterminal extensions. Beta-crystallins, the most heterogeneous, differ by the presence of the SLCterminal extension (present in the basic group but absent in the acidic group). Beta-crystallins form aggregates of different sizes and are able to form homodimers through self-association or heterodimers with other beta-crystallins. This gene is a beta acidic group member. Three alternatively spliced transcript variants encoding identical proteins have been reported. [provided by RefSeq, Jul 2008]
Function:
crystallin, beta A2: Crystallins are separated into two classes: taxon-specific, or enzyme, and ubiquitous. The latter class constitutes the major proteins of the vertebrate eye, which function to maintain the transparency and refractive index of the lens. Since lens central fiber cells lose their nuclei during development, these crystallins are made and then retained throughout life, making them extremely stable proteins. Mammalian lens crystallins are divided into alpha, beta, and gamma families; beta and gamma crystallins are also defined as a superfamily. Alpha and beta families are further divided into acidic and basic groups. Seven protein regions exist in crystallins: four homologous motifs, a connecting peptide, and N- and SLCterminal extensions. Beta-crystallins, the most heterogeneous, differ by the presence of the SLCterminal extension (present in the basic group but absent in the acidic group). Beta-crystallins form aggregates of different sizes and are able to form homodimers through self-association or heterodimers with other beta-crystallins. This gene is a beta acidic group member. Three alternatively spliced transcript variants encoding identical proteins have been reported.
Subunit:
Homo/heterodimer, or complexes of higher-order. The structure of beta-crystallin oligomers seems to be stabilized through interactions between the N-terminal arms (By similarity).
DISEASE:
Note=Defects in CRYBA2 may be a cause of congenital cataract. Cataract is an opacification of the crystalline lens of the eye that frequently resulting in visual impairment or blindness. Opacities vary in morphology, are often confined to a portion of the lens, and may be static or progressive.
Similarity:
Belongs to the beta/gamma-crystallin family.
Contains 4 beta/gamma crystallin 'Greek key' domains.
SWISS:
P53672
Gene ID:
1412
Database links:
Entrez Gene: 1412 Human
Omim: 600836 Human
SwissProt: P53672 Human
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