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Các tương tác giữa DNA và protein trong quá trình nhân đôi các yếu tố di truyền của vi khuẩn
Tóm tắt
Các tương tác cụ thể giữa DNA với protein là cần thiết cho cả việc nhân bản axit deoxyribonucleic và quá trình điều chỉnh của nó. Các yếu tố di truyền của vi khuẩn, đặc biệt là các yếu tố ngoại nhiễm sắc, đại diện cho một hệ thống mô hình phù hợp cho các nghiên cứu về những quá trình này ở cấp độ phân tử. Ngoài các enzym nhân đôi (DNA polymerases), một loạt các yếu tố protein khác (ví dụ: topoisomerases, enzym tháo xoắn DNA và protein gắn DNA) cũng tham gia vào quá trình nhân đôi DNA nhiễm sắc, phage và plasmid. Các tương tác cụ thể giữa protein với DNA đặc biệt quan trọng trong việc điều chỉnh khởi đầu quá trình tổng hợp DNA. Sự liên kết giữa DNA và màng tế bào cũng đóng vai trò quan trọng trong quá trình nhân đôi của chúng ở vi khuẩn.
Từ khóa
#DNA #protein #tương tác #nhân đôi #yếu tố di truyền #vi khuẩnTài liệu tham khảo
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