passages.id: 1.0alpha7.train.83.sent
passages.type: sentence
passages.text: The finding that Plexins can bind Semaphorins, combined with previous studies showing that Plexins can bind Plexins (Ohta et al. 1995), raises questions of whether some Semaphorins might bind one another and whether class I Semaphorins might also function as receptors.
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