| gecko iota-crystallin: how cellular retinol-binding protein became an eye lens ultraviolet filter. | eye lenses of various diurnal geckos contain up to 12% iota-crystallin. this protein is related to cellular retinol-binding protein type i (crbp i) but has 3,4-didehydroretinol, rather than retinol, as a ligand. the 3,4-didehydroretinol gives the lens a yellow color, thus protecting the retina by absorbing short-wave radiation. iota-crystallin could be either the gecko's housekeeping crbp i, recruited for an additional function in the lens, or the specialized product of a duplicated crbp i gene. ... | 2000 | 10725366 |
| [reptiles from cerro colorado and its surroundings, cumana, sucre state, venezuela]. | an inventory of the reptiles that inhabit in cerro colorado and its surroundings, was performed from march, 1994 to march, 1995. there were reported 8 species of snakes and 7 of lizards enclosed in 4 and 5 families repectively. aspects observed were ecolology as habitat, activity, reproduction and relative abundance. the more abundant species of lizards were: cnemidophorus femniscatus, ameiva bifrontata, (teiidae), tropidurus hispidus (tropiduridae), gonatodes vittatus and hemidactylus mabouia ( ... | 2000 | 11220219 |