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porphyropsin
visual pigment predominantly found in freshwater vertebrates; composed of protein, opsin & 3,4-dehydroretinal
Networked:
2
relevant articles (
0
outcomes,
0
trials/studies)
Bio-Agent Context: Research Results
Biological Factors: 2472
Biological Pigments: 1
Retinal Pigments: 2414
porphyropsin: 2
Experts
1.
DeVoe, R D
: 1 article (07/2001)
2.
Ventura, D F
: 1 article (07/2001)
3.
Zana, Y
: 1 article (07/2001)
4.
de Souza, J M
: 1 article (07/2001)
Related Diseases
1.
Ganglion Cysts (Ganglion)
07/01/2001 - "
The blue-adapted spectral sensitivity function of a S/LM cell peaked in the ultraviolet and could be fitted to a porphyropsin cone template with a peak at 372 nm. In the inner retina eight different combinations of spectral opponency were found in the centre of the receptive field of ganglion cells.
"
2.
Body Weight (Weight, Body)
05/01/1986 - "
The first-order kinetic rate constant for the initial period of porphyropsin regeneration at 20 degrees C was 8.3 X 10(-3) nmol kg-1 body weight min-1 and the half-life of this reaction was 83 min. At 30 degrees C, the rate constant was increased to 1.4 X 10(-2) nmol kg-1 body weight min-1, yielding a reduced half-life of 49 min. This suggests that the Q10 of porphyropsin regeneration is about 1.7.
"
05/01/1986 - "
In goldfish retinas enriched with rhodopsin (62% rhodopsin and 38% porphyropsin), the initial phase of visual pigment regeneration (at 30 degrees C) proceeded at a slower rate (first-order rate constant: 6.5 X 10(-3) nmol kg-1 body weight min-1; half-life of reaction = 106 min) than the rate of porphyropsin regeneration.
"
Related Drugs and Biologics
1.
Rhodopsin (Visual Purple)
2.
Retinal Pigments (Pigments, Visual)