منابع مشابه
Cellular oncogenes in neoplasia.
In recent years cellular homologues of many viral oncogenes have been identified. As these genes are partially homologous to viral oncogenes and are activated in some tumour cell lines they are termed "proto-oncogenes". In tumour cell lines proto-oncogenes are activated by either quantitative or qualitative changes in gene structure: activation of these genes was originally thought to be a nece...
متن کاملViral oncogenes and cellular prototypes.
The structural hallmark of retroviral transforming onc genes is a specific RNA sequence that is unrelated to the essential retroviral genes but closely related to certain cellular prototypes termed proto-onc genes. Two types of onc genes have been distinguished. Type I are onc genes which utilize elements of specific sequences only to encode a transforming protein. Type I1 onc genes are hybrids...
متن کاملRetroviral and human cellular oncogenes.
Unexpected meeting of two separate lines of research resulted in the discovery of oncogenes. Oncogenes are deoxyribonucleic acid (DNA) sequences coding for polypeptide gene products which cause, or contribute to, neoplastic growth of cells. Oncogenes remain almost unchanged through evolution: oncogenes and their gene products of avian, murine, feline, simian and human species show close homolog...
متن کاملLatent cellular oncogenes: the paradox dissolves.
The 20 known transforming onc genes of retroviruses are defined by sequences which are transduced from cellular genes, termed proto-onc genes. Based on these sequences, viral onc genes have been postulated to be transduced cellular cancer genes and proto-onc genes have been postulated to be latent cancer genes that can be activated from within the cell, to cause virus-negative tumours. The hypo...
متن کاملThe molecular genetics of cellular oncogenes.
DEFINITIONS OF CELLULAR ONCOGENES ................................................ c-onc’s: The Proto-Oncogenic Progenitors of Retroviral Oncogenes . . . . . . . . . . . . . . . . . . . Identification of Cellular Oncogenes by Functional Tests for Dominant Mutations Using Genetic Rearrangements to Identify Oncogenes.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Proviral...
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ژورنال
عنوان ژورنال: Journal of Clinical Pathology
سال: 1987
ISSN: 0021-9746
DOI: 10.1136/jcp.40.9.1055