Document Detail

The green rod pigment of the bullfrog, Rana catesbeiana.
MedLine Citation:
PMID:  6610986     Owner:  NLM     Status:  MEDLINE    
The blue-sensitive pigment of the green rods was purified by column chromatography with Con A-Sepharose 4B. In digitonin solution, the lambda max and the epsilon max values of the green rod pigment were 430 nm and 35,000, respectively, for the vitamin A1-based pigment (P-4301). P-4301 was destroyed by hydroxylamine and p-chloromercuribenzoate but not by sodium borohydride. The regeneration rate of P-4301 was about 100 times faster than that of rhodopsin and the optimum pH for regeneration was at 6.5. P-4301 has properties intermediate between rhodopsin and the chicken cone pigment, iodopsin . The green rod pigment based on vitamin A2 was segregated in the dorsal retina. The lambda max and the epsilon max were 442 nm and 32,000, respectively. The amount of this pigment (P-4422) varied with season as did that of porphyropsin . P-4422 increased in November and reached a maximum of 33% of the total green rod pigment in the dorsal retina in March. The green rod pigment in the ventral retina was always based on vitamin A1 in all seasons. Regenerations of vitamin A2-based pigments of both green and red rods were slower than those of the respective vitamin A1-based pigments.
M Makino-Tasaka; T Suzuki
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Vision research     Volume:  24     ISSN:  0042-6989     ISO Abbreviation:  Vision Res.     Publication Date:  1984  
Date Detail:
Created Date:  1984-07-27     Completed Date:  1984-07-27     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0417402     Medline TA:  Vision Res     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  309-22     Citation Subset:  IM    
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MeSH Terms
Chromatography, Agarose
Chromatography, High Pressure Liquid
Hydroxylamines / pharmacology
Photoreceptor Cells / analysis*,  metabolism
Rana catesbeiana / metabolism*
Retinal Pigments / isolation & purification*,  metabolism
Rhodopsin / metabolism
Vitamin A / metabolism
Reg. No./Substance:
0/Hydroxylamines; 0/Retinal Pigments; 11103-57-4/Vitamin A; 7803-49-8/Hydroxylamine; 9009-81-8/Rhodopsin

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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