pfam10216: ChpXY (This model is not part of the current CDD release)
CO2 hydration protein (ChpXY)
This small family of proteins includes paralogues ChpX and ChpY in Synechococcus sp. PCC7942 and other cyanobacteria, associated with distinct NAD(P)H dehydrogenase complexes. These proteins collectively enable light-dependent CO2 hydration and CO2 uptake; loss of both blocks growth at low CO2 concentrations.
Jiyao W et al.(2023). "The conserved domain database in 2023.",