Fig. 2: 3-D structure analysis of collagen IV.

a Wild-type. b, d, p.Gln471* (d cropped). c Δexon21. Green: α3; blue: α4; and pink: α5. Formation of the trimer by p.Gln471* was followed by collapse of the whole structure. Δexon21 formed a similar structure to that of the wild-type trimer. a–c the same scale, d ×3.5 magnification to confirm the chains.