The sea Flashcards
1
Q
What is DMS?
A
Dimethylsulfide
Most abundant form of volatile sulfur in the ocean
10-30 tonnes emitted to the atmosphere every year
2
Q
What is DMSP?
A
Dimethylsulfiopropionate
Zwitterion
Used as an osmoprotectant in marine organisms
3
Q
What is the starting point to making DMSP?
A
Methionine
4
Q
Describe the reaction that cupin superfamily lyases catalyse
A
DMSP —-> Acrylic acid/acrylate + DMS
5
Q
Describe the reaction that dual-action transferase and lyase catalyse
A
DMSP+ Acetyl CoA —-> DMS+ acetic acid + 3-hydroxypropionyl-coA
6
Q
What does DMSO reductase do?
A
DMSO + 2H+ + 2e- —-> DMS + H2O
Can also use TMAO as substrate
