1E7N:
reference: The N-terminal domain of betaB2-crystallin resembles the putative ancestral homodimer., Clout NJ, Basak A, Wieligmann K, Bateman OA, Jaenicke R, Slingsby C, J Mol Biol 2000 Dec 1;304(3):253-7. PMID: 11090271

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