scholarly journals Quantal noise from human red cone pigment

2008 ◽  
Vol 11 (5) ◽  
pp. 565-571 ◽  
Author(s):  
Yingbin Fu ◽  
Vladimir Kefalov ◽  
Dong-Gen Luo ◽  
Tian Xue ◽  
King-Wai Yau
Keyword(s):  
Cone Pigment

Spectral Tuning in the Human Blue Cone Pigment†

Biochemistry ◽  
1999 ◽  
Vol 38 (36) ◽  
pp. 11593-11596 ◽  
Author(s):  
Jeffry I. Fasick ◽  
Ning Lee ◽  
Daniel D. Oprian
Keyword(s):  
Spectral Tuning ◽  
Cone Pigment

The photoreceptors and visual pigments in the retina of the white sturgeon, Acipenser transmontanus

1990 ◽  
Vol 68 (7) ◽  
pp. 1544-1551 ◽  
Author(s):  
A. J. Sillman ◽  
M. D. Spanfelner ◽  
E. R. Loew
Keyword(s):  
Vitamin A ◽  
Visual Pigment ◽  
Visual Pigments ◽  
Spectrophotometric Analysis ◽  
White Sturgeon ◽  
Acipenser Transmontanus ◽  
Light Regimen ◽  
Cone Pigment ◽  
Spectral Absorbance

The photoreceptors in the retina of the white sturgeon, Acipenser transmontanus (Chondrostei), were studied by means of scanning electron microscopy, in situ microspectrophotometry, and spectrophotometric analysis of visual pigment extracts. The white sturgeon retina is simple in that it contains only two morphologically distinct photoreceptors. The retina is dominated by rods with large outer segments, but there is a substantial population (40%) of single cones. Evidence was found for only one rod visual pigment and one cone visual pigment. Peak spectral absorbance (λmax) of the rod pigment is near 539 nm, whereas λmax of the cone pigment is near 605 nm. Both visual pigments are porphyropsin types with chromophores based on vitamin A2. No detectable rhodopsin based on vitamin A1 is ever present, regardless of season or light regimen. The results are discussed in terms of the sturgeon's behavior, as well as the implications for the evolution of color vision.

scholarly journals Proximal and Distal Sequences Control UV Cone Pigment Gene Expression in Transgenic Zebrafish

2004 ◽  
Vol 279 (18) ◽  
pp. 19286-19293 ◽  
Author(s):  
Wenqin Luo ◽  
John Williams ◽  
Philip M. Smallwood ◽  
Jeffrey W. Touchman ◽  
Laura M. Roman ◽  
...  
Keyword(s):  
Gene Expression ◽  
Transgenic Zebrafish ◽  
Cone Pigment ◽  
Uv Cone

scholarly journals Increasing the Stability of Recombinant Human Green Cone Pigment

Biochemistry ◽  
2018 ◽  
Vol 57 (6) ◽  
pp. 1022-1030 ◽  
Author(s):  
Timothy S. Owen ◽  
David Salom ◽  
Wenyu Sun ◽  
Krzysztof Palczewski
Keyword(s):  
Cone Pigment ◽  
The Stability

Cone pigment regeneration, retinitis pigmentosa and light deprivation

1972 ◽  
Vol 12 (4) ◽  
pp. 749-752 ◽  
Author(s):  
Eliot L. Berson ◽  
E. Bruce Goldstein
Keyword(s):  
Retinitis Pigmentosa ◽  
Light Deprivation ◽  
Cone Pigment

Metarhodopsin intermediates of the gecko cone pigment P521

Biochemistry ◽  
1993 ◽  
Vol 32 (51) ◽  
pp. 14187-14193 ◽  
Author(s):  
Jie Liang ◽  
Rajni Govindjee ◽  
Thomas G. Ebrey
Keyword(s):  
Cone Pigment

Horizontal cell connections with short-wavelength-sensitive cones in macaque monkey retina

1996 ◽  
Vol 13 (5) ◽  
pp. 833-845 ◽  
Author(s):  
Ann K. Goodchild ◽  
Tricia L. Chan ◽  
Ulrike Grünert
Keyword(s):  
Short Wavelength ◽  
Horizontal Cell ◽  
Macaque Monkey ◽  
Horizontal Cells ◽  
Carbocyanine Dye ◽  
Cone Pigment ◽  
H1 Cells

AbstractThis study describes the connectivity between horizontal cells and short-wavelength-sensitive (SWS) cones in macaque monkey retina. H1 and H2 horizontal cells were either labelled with the carbocyanine dye, Dil, or injected intracellularly with Neurobiotin. The retinas were then processed with an antiserum against human SWS cone pigment, which usually stained the entire SWS cone. In these double-labelled retinas, the pattern of connectivity of H1 (n = 91) and H2 (n = 7) cells with SWS cones has been determined. About 85% of the H1 cells examined do not contact SWS cones. The dendritic terminal knobs of five H1 cells that do contact SWS cones were counted. They have, at most, 3% of their dendritic terminal knobs at SWS cones. All H2 cells examined make contact with SWS cones. The dendritic terminal knobs of one H2 cell were counted; about 11% of the dendritic terminal knobs are at the SWS cone. We conclude that horizontal cells in macaque monkey retina show specific patterns of connectivity to SWS cones.

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