Talk:Ribulose 1,5-bisphosphate/Archive 1

3D particle model error

Looks like in the 3D ball model of the particle there's one hydroxy group missing in the middle, when compared to the ball&stick model and the structural formula. There's only one hydrogen there and no oxygen.--Sasq777 (talk) 14:50, 4 May 2011 (UTC)

Role in photosynthesis

The enzyme ribulose bisphosphate carboxylase oxygenase (RuBisCO) catalyzes the reaction between RuBP and carbon dioxide. The product is the highly unstable 6-carbon intermediate known as 3-keto-2-carboxyarabinitol 1,5-bisphosphate. This six-carbon intermediate decays virtually instantaneously into two molecules of 3-phosphoglycerate (3-PGA) (see figure). RuBisCO also catalyzes RuBP with oxygen (O2) in a process called photorespiration, a process that is more prevalent at high temperatures. RuBP is also involved in photorespiration, in which it combines with O2 to become 3-PGA + phosphoglycolic acid. In the Calvin Cycle, RuBP is a product of the phosphorylation of ribulose-5-phosphate by ATP.

SUGGESTED EDIT: These two sentences are repetitive. I'd like to make a more concise statement. E.g.: RuBisCO also catalyzes RuBP with oxygen (O2) in a process called photorespiration, a process that is more prevalent at high temperatures. During photorespiration RuBP combines with O2 to become 3-PGA + phosphoglycolic acid. Ccoatsworth (talk) 13:11, 28 October 2015 (UTC)

• I cleaned up a triple elegant variation: Ribulose-1,5-bisphosphate (RuBP) is an organic substance that is involved in photosynthesis. The anion is a double phosphate ester of the ketose (ketone-containing sugar) called ribulose. Salts of this species can be isolated, but its crucial biological function involves this colourless anion in solution. Elegant variation is confusing in scientific explanation. Anthony Appleyard (talk) 06:34, 31 October 2015 (UTC)

Di or bis

I was reading the paper
Pedersen TA, Kirk M, Bassham JA (1966) Light‐Dark Transients in Levels of Intermediate Compounds during Photosynthesis in Air‐Adapted Chlorella. Physiol Plant 19:219–231. doi: 10.1111/j.1399-3054.1966.tb09094.x

where they talk about Ribulose-1,5-diphosphate. I searched a bit but couldn't find a straightforward answer. Can someone give a bit of historic oriented explanation to the differences of the terms? --Mindravel (talk) 10:22, 2 August 2017 (UTC)

@Mindravel: According to this thread on Stackexchange, di should only be used when the phosphate groups are attached to the same carbon atom whereas bis signifies that they are attached to different carbon atoms. As to why earlier sources refer to RuBP as di, I have zero clue. SmartSE (talk) 20:59, 2 August 2017 (UTC)

I have added a history section here that discusses this terminology UndercoverGeologicalAgent (talk) 20:17, 23 May 2021 (UTC)

Wiki Education Foundation-supported course assignment

This article was the subject of a Wiki Education Foundation-supported course assignment, between 30 March 2021 and 11 June 2021. Further details are available on the course page. Student editor(s): UndercoverGeologicalAgent.

Above undated message substituted from Template:Dashboard.wikiedu.org assignment by PrimeBOT (talk) 08:09, 17 January 2022 (UTC)