Pigment

Actin-dependent pigment granule transport in retinal pigment epithelial cells.

Since diffusion of particles as large as vesicles or organelles is constrained by the high viscosity of cytoplasm, directed translocation of these particles from one cytoplasmic site to another must be achieved by cytoskeletal intervention. In most cases, this is achieved by attaching the particle to a molecular motor which then navigates along a microtubule or an actin filament track (Fath and...

Pigment analysis of chloroplast pigment-protein complexes in wheat.

Pigment-protein complexes separated from wheat (Triticum aestivum L. selection ND96-25 by two gel electrophoresis techniques were analyzed by high-performance liquid chromatography for chlorophylls and carotenoids. The two techniques are compared, and pigment analyses are given for the major reaction centers and light-harvesting complexes. Reaction centers contain mostly chlorophyll a, carotene...

Pigment of Nocardia corallina.

Bovine Retinol Pigment Epithelium

From the Medical and Research Divisions, VA Wadsworth Medical Center, and The Jules Stein Institute, UCLA School of Medicine, Los Angeles, California. Supported by USPHS grants AM 17328, EY 01190 and EY 04172 and VA research funds. *Present address: The Biological Laboratories, Harvard University, 16 Divinity Avenue, Cambridge, Massachusetts 02138. §Present address: Gastroenterology Division, D...

Outstanding bile pigment problems.

In this review of the chemistry, biochemistry and chemical pathology of the bile pigments I am well aware that I shall ask many more questions than I am able to answer. It seems appropriate that the subject should be considered under the five headings: -Chemistry; Formation from Haem Proteins; Transport in the Blood; Conjugation and Transport to the Bile; and Changes in the Gut. I shall conclud...