Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1126/science.aal2674 |
Eye patches: Protein assembly of index-gradient squid lenses | |
Cai, J.1; Townsend, J. P.2; Dodson, T. C.1; Heiney, P. A.1; Sweeney, A. M.1 | |
2017-08-11 | |
发表期刊 | SCIENCE
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ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2017 |
卷号 | 357期号:6351页码:564-569 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | A parabolic relationship between lens radius and refractive index allows spherical lenses to avoid spherical aberration. We show that in squid, patchy colloidal physics resulted from an evolutionary radiation of globular S-crystallin proteins. Small-angle x-ray scattering experiments on lens tissue show colloidal gels of S-crystallins at all radial positions. Sparse lens materials form via low-valence linkages between disordered loops protruding from the protein surface. The loops are polydisperse and bind via a set of hydrogen bonds between disordered side chains. Peripheral lens regions with low particle valence form stable, volume-spanning gels at low density, whereas central regions with higher average valence gel at higher densities. The proteins demonstrate an evolved set of linkers for self-assembly of nanoparticles into volumetric materials. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000407324800035 |
WOS关键词 | GLUTATHIONE-S-TRANSFERASE ; CEPHALOPODS ; CRYSTALLINS ; SCATTERING ; EVOLUTION ; FISH ; GELS |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/196649 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA; 2.Univ Penn, Dept Biochem & Biophys, Philadelphia, PA 19104 USA |
推荐引用方式 GB/T 7714 | Cai, J.,Townsend, J. P.,Dodson, T. C.,et al. Eye patches: Protein assembly of index-gradient squid lenses[J]. SCIENCE,2017,357(6351):564-569. |
APA | Cai, J.,Townsend, J. P.,Dodson, T. C.,Heiney, P. A.,&Sweeney, A. M..(2017).Eye patches: Protein assembly of index-gradient squid lenses.SCIENCE,357(6351),564-569. |
MLA | Cai, J.,et al."Eye patches: Protein assembly of index-gradient squid lenses".SCIENCE 357.6351(2017):564-569. |
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