Falls J G, Pulford D J, Wylie A A, Jirtle R L
Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina27710, USA.
Am J Pathol. 1999 Mar;154(3):635-47. doi: 10.1016/S0002-9440(10)65309-6.
Genomic imprinting refers to an epigenetic marking of genes that results in monoallelic expression. This parent-of-origin dependent phenomenon is a notable exception to the laws of Mendelian genetics. Imprinted genes are intricately involved in fetal and behavioral development. Consequently, abnormal expression of these genes results in numerous human genetic disorders including carcinogenesis. This paper reviews genomic imprinting and its role in human disease. Additional information about imprinted genes can be found on the Genomic Imprinting Website at http://www.geneimprint.com.
基因组印记是指基因的一种表观遗传标记,导致单等位基因表达。这种依赖于亲本来源的现象是孟德尔遗传学定律的一个显著例外。印记基因与胎儿发育和行为发育密切相关。因此,这些基因的异常表达会导致包括致癌作用在内的多种人类遗传疾病。本文综述了基因组印记及其在人类疾病中的作用。有关印记基因的更多信息可在基因组印记网站http://www.geneimprint.com上找到。