Science. 1979 Apr 13;204(4389):179-80. doi: 10.1126/science.204.4389.179.
Fraction 1 protein has been isolated from leaves of a male sterile Nicotiana tabacum plant containing an extra N. debneyichromosome. The extra chromosome induces appearance of a third polypeptide composing the small subunit of fraction 1 protein, which otherwise contains two polypeptides as is shown by analysis of numerous different cultivars of N. tabacum.
从含有额外 N. debneyi 染色体的雄性不育烟草叶片中分离到了 1 号蛋白的 Fraction 1 蛋白。这条额外的染色体诱导了第三个多肽的出现,组成了 Fraction 1 蛋白的小亚基,否则,如对众多不同烟草品种的分析所示,它只包含两个多肽。