First-pass extracted concept

chemically modified retinal chromophores

Candidate: toolkit item1 source documents3 linked claims

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Aliases

synthetic chromophores

Evidence Snippets

we have studied bR proteins substituted with chemically modified retinal chromophores. These synthetic chromophores were designed to restrict their ability to isomerize

Evidence 1Source 1DOI PubMedprovenance

Supporting Sources

Source 1primary paper1997Proceedings of the National Academy of SciencesDOI PubMed

1 evidence snippet 3 linked claims Claim 1 Claim 2 Claim 3

Linked Claims

Claim 1design propertysupports1997Source 1DOI PubMed

The synthetic retinal chromophores were designed to restrict isomerization while maintaining large light-induced charge redistribution in the vertically excited Franck-Condon state.

Quoted textsource-backed

These synthetic chromophores were designed to restrict their ability to isomerize, while maintaining the basic characteristic of a large light-induced charge redistribution in the vertically excited Franck-Condon state.

Claim 2hypothesis challengecontradicts1997Source 1DOI PubMed

The data question the hypothesis that all primary events in retinal proteins are attributable to an initial trans-cis isomerization.

Quoted textsource-backed

our data question the current working hypothesis which attributes all primary events in retinal proteins to an initial trans<==>cis isomerization

Claim 3mechanistic inferencesupports1997Source 1DOI PubMed

Protein conformational changes in bacteriorhodopsin can be initiated by light-triggered redistribution of electronic charge in the retinal chromophore even when isomerization cannot take place.

Quoted textsource-backed

protein conformational changes in bR can be initiated as a result of a light-triggered redistribution of electronic charge in the retinal chromophore, even when isomerization cannot take place