CBS domain-containing protein / octicosapeptide/Phox/Bemp1 (PB1) domain-containing protein. similar to CBS domain-containing protein / octicosapeptide/Phox/Bemp1 (PB1) domain-containing protein [Arabidopsis thaliana] (TAIR:AT5G63490.1); similar to CBS domain-containing protein / octicosapeptide/Phox/Bemp1 (PB1) domain-containing protein [Arabidopsis thaliana] (TAIR:AT5G50640.1); similar to hypothetical protein [Vitis vinifera] (GB:CAN79772.1); similar to unnamed protein product [Vitis vinifera] (GB:CAO68312.1); similar to unknown [Populus trichocarpa] (GB:ABK94323.1); contains InterPro domain Cystathionine beta-synthase, core (InterPro:IPR000