1IOO:
reference: The 1.55 A resolution structure of Nicotiana alata S(F11)-RNase associated with gametophytic self-incompatibility., Ida K, Norioka S, Yamamoto M, Kumasaka T, Yamashita E, Newbigin E, Clarke AE, Sakiyama F, Sato M, J Mol Biol 2001 Nov 16;314(1):103-12. PMID: 11724536

This OCA Structure page
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