3nav is a 2 chain structure with sequence from Vibch. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
[TRPA_VIBCM] The alpha subunit is responsible for the aldol cleavage of indoleglycerol phosphate to indole and glyceraldehyde 3-phosphate (By similarity).
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.