Fig. 2
From: The Id-protein family in developmental and cancer-associated pathways
Amino-acid sequences of the N-terminal (a) and C-terminal domains (b) as well as of the HLH domains (c) of the human Id proteins (for Id1 and Id3 the C-terminus found in a spliced form is reported as Id1′ and Id3L). d Structures of the homodimers of the fragments Id2 30–82 [55] and Id3 29–83 [56]. D-box, destruction box; NES, nuclear export signal (UniProtKB: P41134-1 for Id1, P41134-2 for Id1′, Q02363 for Id2, Q02535 for Id3, P47928 for Id4. GenPept: S71405 GI: 2135331 for Id3L)