Species	Reference gene ID	Possible function	Papers / DOI
Arabidopsis	At4g02610	The alpha subunit is responsible for the aldol cleavage of indoleglycerol phosphate to indole and glyceraldehyde 3-phosphate (By similarity).	No verified direct reference in this release
Arabidopsis	At3g54640	The alpha subunit is responsible for the aldol cleavage of indoleglycerol phosphate to indole and glyceraldehyde 3-phosphate.	Arabidopsis thaliana tryptophan synthase alpha: gene cloning, expression, and subunit interaction.; 1995; DOI: 10.1007/bf02191705; PMID: 7476868; https://pubmed.ncbi.nlm.nih.gov/7476868/ | Characterization of tryptophan synthase alpha subunit mutants of Arabidopsis thaliana.; 1996; DOI: 10.1007/pl00008602; PMID: 9003322; https://pubmed.ncbi.nlm.nih.gov/9003322/