tokens: Sequence analyses of cDNA clones indicated that these transcripts encode proteins differing only at their amino termini , and likely represent alternatively spliced isoforms .
folded_tokens: sequence analyses of cdna clones indicated that these transcripts encode proteins differing only at their amino termini , and likely represent alternatively spliced isoforms .
labels: O O O B-DNA_family_or_group I-DNA_family_or_group O O O O O O O O O O B-protein_domain_or_region I-protein_domain_or_region O O O O O O O O