Cystathionine β-synthase is an enzyme that catalyzes the condensation of serine and homocysteine to water and cystathionine. Cystathionine β-synthase is a prominent enzyme for the production of hydrogen sulfide (H2S)[1].
References
[1] Conter C, et al. Cystathionine β-synthase is involved in cysteine biosynthesis and H2S generation in Toxoplasma gondii. Sci Rep. 2020 Sep 4;10(1):14657. DOI:10.1038/s41598-020-71469-x