Yelverton E, Leung D, Weck P, Gray P W, Goeddel D V
Nucleic Acids Res. 1981 Feb 11;9(3):731-41. doi: 10.1093/nar/9.3.731.
A novel human leukocyte interferon cDNA clone (LeIF B) was identified in a cDNA library prepared using polyadenylated mRNA of a myeloblastoid cell line. The nucleotide sequence of LeIF B differs significantly from other published leukocyte interferon cDNA sequences. An expression plasmid was constructed which directs the synthesis in E. coli of 8 x 10(7) interferon units per liter of culture. LeIF B exhibits markedly different specificities from another bacterially synthesized human leukocyte interferon, LeIF A.
在使用成髓细胞样细胞系的聚腺苷酸化信使核糖核酸制备的互补脱氧核糖核酸文库中,鉴定出了一种新型人类白细胞干扰素互补脱氧核糖核酸克隆(LeIF B)。LeIF B的核苷酸序列与其他已发表的白细胞干扰素互补脱氧核糖核酸序列有显著差异。构建了一种表达质粒,该质粒可指导大肠杆菌中每升培养物合成8×10⁷个干扰素单位。LeIF B与另一种细菌合成的人类白细胞干扰素LeIF A表现出明显不同的特异性。