rubiscolin
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The rubiscolins are a group of opioid peptides that are formed during digestion of the ribulose bisphosphate carboxylase/oxygenase (Rubisco) protein from spinach leaves. Two of them are known, acting as weak agonists of the delta opioid receptor selective for the G protein signaling pathway.
~3 min read
Article
12 sectionsContents
- Background
- Overview
- Types of rubiscolin
- Rubiscolin-5
- Rubiscolin-6
- Other bioactive Rubisco-derived peptides
- MRW
- MRWRD
- IAYKPAG
- LRIPVA
- References
- External links
The rubiscolins are a group of opioid peptides that are formed during digestion of the ribulose bisphosphate carboxylase/oxygenase (Rubisco) protein from spinach leaves. Two of them are known, acting as weak agonists of the delta opioid receptor selective for the G protein signaling pathway.
== Background == Rubisco is a key protein in carbon fixation and is found in photosynthetic organs such as leaves in very high concentration. It usually accounts for 40% of the protein mass of a plant. With all forms of RuBisCO (not only plants, but also bacteria) taken into account, RuBisCO is possibly the most abundant type of protein on Earth.