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- Publications
- Influence
Tautomeric Forms of Metarhodopsin
- R. Matthews, R. Hubbard, P. Brown, G. Wald
- Chemistry, Medicine
- The Journal of general physiology
- 1 November 1963
Light isomerizes the chromophore of rhodopsin, 11-cis retinal (formerly retinene), to the all-trans configuration. This introduces a succession of unstable intermediates—pre-lumirhodopsin,… Expand
THE ACTION OF LIGHT ON RHODOPSIN.
- R. Hubbard, A. Kropf
- Chemistry, Medicine
- Proceedings of the National Academy of Sciences…
- 1 February 1958
Rhodopsin, a red visual pigment of vertebrate rods, is composed of the yellow carotenoid derivative, retinene, joined to the colorless protein, opsin. It is synthesized by the combination of opsin… Expand
The sensitivity of the human eye to infra-red radiation.
- D. Griffin, R. Hubbard, G. Wald
- Physics, Medicine
- Journal of the Optical Society of America
- 1 July 1947
The spectral sensitivity of human vision has been measured in the near infra-red, in two areas of the dark adapted eye: the central fovea (cones) to 1000 mμ, and a peripheral area, in which the… Expand
THE MECHANISM OF BLEACHING RHODOPSIN
- A. Kropf, R. Hubbard
- Chemistry, Medicine
- Annals of the New York Academy of Sciences
- 1 November 1958
I t has been known for many years that light can cause cis-trans isomerizations about double bonds. The interconversion of maleic and fumaric acids's is probably the best known example of this… Expand
[243] Methodology of vitamin A and visual pigments
- R. Hubbard, P. Brown, D. Bownds
- Biology
- 1971
Publisher Summary This chapter discusses methodology for the assay and preparation of vitamin A and visual pigments, such as rhodopsin, rod opsin, iodopsin, and cone opsin. The assay for rhodopsin… Expand
CIS-TRANS ISOMERS OF VITAMIN A AND RETINENE IN THE RHODOPSIN SYSTEM
- R. Hubbard, G. Wald
- Chemistry, Medicine
- The Journal of general physiology
- 20 November 1952
Vitamin A and retinene, the carotenoid precursors of rhodopsin, occur in a variety of molecular shapes, cis-trans isomers of one another. For the synthesis of rhodopsin a specific cis isomer of… Expand
Submersion bradycardia in the newborn elephant seal Mirounga angustirostris.
- D. Hammond, R. Elsner, G. Simison, R. Hubbard
- Chemistry, Medicine
- The American journal of physiology
- 1969
THE MOLECULAR WEIGHT OF RHODOPSIN AND THE NATURE OF THE RHODOPSIN-DIGITONIN COMPLEX
- R. Hubbard
- Biology, Medicine
- The Journal of general physiology
- 20 January 1954
The sedimentation behavior of aqueous solutions of digitonin and of cattle rhodopsin in digitonin has been examined in the ultracentrifuge. In confirmation of earlier work, digitonin was found to… Expand
Geometrical Isomerization of Vitamin A, Retinene and Retinene Oxime
- R. Hubbard
- Chemistry
- 1 September 1956
THE REDUCTION OF RETINENE1 TO VITAMIN A1 IN VITRO
- G. Wald, R. Hubbard
- Chemistry, Medicine
- The Journal of general physiology
- 20 January 1949
In the surviving vertebrate retina the retinene1 liberated by bleaching rhodopsin is converted quantitatively to vitamin A1. Recent chemical studies have indicated that in this process the aldehyde… Expand
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