Two cDNA clones were sequenced and provided 2 , 250 nucleotides ( nt ) of DNA sequence information .
two cdna clones were sequenced and provided 2 , 250 nucleotides ( nt ) of dna sequence information .
O B-DNA_molecule I-DNA_molecule O O O O B-polynucleotide I-polynucleotide I-polynucleotide I-polynucleotide O O O O B-DNA_domain_or_region I-DNA_domain_or_region O O