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crystallin
In anatomy, a crystallin is a water-soluble structural protein found in the lens and the cornea of the eye accounting for the transparency of the structure. It has also been identified in other places such as the heart, and in aggressive breast cancer tumors. Since it has been shown that lens injury may promote nerve regeneration,
crystallin has been an area of neural research. So far, it has been demonstrated that crystallin β b2 (crybb2) may be a neurite-promoting factor.
==Function==
The main function of crystallins at least in the lens of the eye is probably to increase the refractive index while not obstructing light.〔Mahendiran K, Elie C, Nebel J-C, Ryan A, Pierscionek BK (2014) Primary sequence contribution to optical function of the eye lens, Scientific Reports, 4, 5195.〕 However, this is not their only function. It is becoming increasingly clear that crystallins may have several metabolic and regulatory functions, both within the lens and in other parts of the body. More proteins containing βγ-crystallin domains have now been characterized as calcium binding proteins with Greek key motif as a novel calcium-binding motif.〔(betagamma-crystallin AND calcium - PubMed result )〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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