= N. Kitamura
{c}
<N. Kitamura> is the first-listed author of the 1981 study that determined the primary sequence and organization of <poliovirus> <RNA> and related it to the expressed <polypeptides>. The original byline is retained here without inferring a longer personal identity.<Primary structure, gene organization and polypeptide expression of poliovirus RNA by N. Kitamura and others>[Byline and original Abstract]{ref}
The study reported a 7,433-<nucleotide> RNA sequence and an <open reading frame> spanning 2,207 consecutive triplets. Sequence analysis mapped twelve viral <polypeptides> to products of <proteolysis> of one encoded <polyprotein>. Connecting nucleotide order with the isolated protein products supplied evidence about gene expression and processing, rather than simply listing the genome's chemical composition.<Primary structure, gene organization and polypeptide expression of poliovirus RNA by N. Kitamura and others>[Abstract: RNA length, coding frame and mapped cleavage products]{ref}
An original consistency calculation gives $2207\times3=6621$ nucleotide positions in those triplets, about $6621/7433\approx0.891$ of the reported sequence. This explains the stated scale of the long reading frame. It does not by itself locate a cleavage site: mapping the protein products requires additional sequence evidence.
Kitamura's contribution in this work links <RNA> sequence, an <open reading frame> and experimentally identified <polyprotein> products. Genome organization and subsequent protein processing answer related but distinct questions.
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