核苷酸残基，指的是核酸链内的前一个核苷酸的3’羟基和下一个核苷酸的5’磷酸形成3’,5’磷酸二酯键，3‘脱掉1个羟基-OH。
结果表明：基因由1155个核苷酸组成，编码385个氨基酸残基组成的多肽。
DNA sequence was determined, which consists of 1155 bp and encodes 385 amino acid residues deduced from DNA sequence.
结果表明， PSH株S基因由3504个核苷酸组成，编码1条由1167个氨基酸残基组成的多肽。
Results showed that the S gene of PSH strain was 3504 nucleotides in length, encoding a polypeptide of 1167 amino acids.
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