Fig. 1
From: Genome-wide identification and characterisation of bHLH transcription factors in Artemisia annua
Sequence motifs and predicted structure of the bHLH domain. A amino acid sequences of A. annua bHLH domains. bHLH domains generally contain four conserved motifs: a basic, two helices, and one loop that connects the helices. Amino acids conserved over > 50% proteins are marked by red asterisks. B The three-dimensional structure of a bHLH homologous dimer showing orientations of loops and helices. The two monomers are shown in different colours