抗-三甲基-组蛋白H3 (Lys27)抗体

Antibodies combine with specific antigens to generate an exclusive antibody-antigen complex. Learn about the nature of this bond and its use as a molecular tag for research.

Learn differences in monoclonal vs polyclonal antibodies including how antibodies are generated, clone numbers, and antibody formats.

Immunofluorescence uses antibody-conjugated fluorescent molecules for protein localization, modification confirmation, and protein complex visualization.

Explore the basics of working with antibodies including technical information on structure, classes, and normal immunoglobulin ranges.

Tips and troubleshooting for FFPE and frozen tissue immunohistochemistry (IHC) protocols using both brightfield analysis of chromogenic detection and fluorescent microscopy.

抗体的质量决定了整个免疫检测的成败， 是在选择抗体时首选的考虑因素。基于Sigma®、Chemicon®、Upstate®、Mil l ipore®、 Calbiochem®和Novagen®等子品牌的强强联合，默克在创新的 免疫原设计、免疫、挑选、筛选和验证等方面有着数十年的经验， 创造出许多被广泛使用的抗体，如4G10，Neun，组蛋白修饰等抗 体都是相关领域的“金标”抗体。 我们的技术和科研背景使默克成为高质量抗体的主要设计者和生产 者，而不仅仅是经销商。毋庸置疑，我们的每个小瓶中的抗体都包 含着大量的科学研究成果。

"Epigenetics describes heritable changes in gene expression caused by non-genetic mechanisms instead of by alterations in DNA sequence. These changes can be cell- or tissue-specific, and can be passed on to multiple generations. Epigenetic regulation enriches DNAbased information, allowing a cell to vary its response across diverse biological and environmental contexts. Although epigenetic mechanisms are primarily centered in the nucleus, these mechanisms can be induced by environmental signals such as hormones, nutrients, stress, and cellular damage, pointing to the involvement of cytoplasmic and extracellular factors in epigenetic regulation."