HPV is a species-specific epitheliophilic virus, a small double-stranded, closed-loop DNA virus containing about 8,000 base pairs.
In the early open reading frame, the E6 and E7 genes are most important for cell growth stimulation, and the E6 and E7 proteins encoded by E6 and E7 cause cervical epithelial cell immortalization. And the late reading frame L1 and L2 genes encode the major and minor coat proteins of HPV, respectively, which assemble into the HPV coat.
Based on the different structures of HPV gene sequences, HPV has been categorized into nearly 130 genotypes, of which nearly 100 have been mapped. Humans are the only host for HPV, which has a high host-specific affinity because it most likes to make its home in the skin and mucous membranes.
Extended Information: Symptoms 1, hpv virus infection typical symptoms of hpv virus infection is a fine and small reddish papules at the beginning of the time, with the migration of time will gradually increase and increase, and the surface will also be a bulge of the The first step in the process is to make sure that you have the best possible chance of getting a good deal. 2, hpv virus infection caused by warts surface color varies, some for red, some gray or normal skin color, hpv virus infection local wet. In addition, a few patients will have the feeling of itching in the pubic area, pain or even bleeding during sexual intercourse. 3, male hpv virus infection patients, the onset of the site is usually the foreskin, ligament, glans, as well as the coronary groove and urethral orifice, of course, there are a small number of patients will be onset of the penis body. Baidu Encyclopedia - HPV Virus Baidu Encyclopedia - HPV Infection