Figure 2From: The Hedgehog protein familyDistribution of Hint superclass genes in the three domains of life. Hint genes can be divided into several different classes: inteins; Bil-A (bacterial intein-like genes type A); Bil-B; a new class referred to here as Bil-C [10, 13]; Vint (VWA domain and Hint domain proteins) [10]; and Hog.Back to article page