Overview
Recombinant DNA (rDNA) technology involves the artificial combination of DNA from different sources, often across species, to create new genetic sequences. This breakthrough in molecular biology has revolutionized fields like medicine, agriculture, and industrial biotechnology. The process typically involves cutting and splicing DNA using restriction enzymes and ligases. Since its development in the 1970s, rDNA has enabled the production of insulin, growth hormones, and vaccines. It is also used to create genetically modified organisms (GMOs) with enhanced traits. The technology is subject to strict regulatory oversight to ensure safety and ethical compliance.
Physical and Chemical Properties
Recombinant DNA is structurally identical to natural DNA but differs in sequence due to genetic engineering. It consists of a double helix with a sugar-phosphate backbone and nitrogenous bases. The stability of rDNA depends on storage conditions, with low temperatures (-20°C or below) required to prevent degradation. Unlike small-molecule chemicals, rDNA's properties are defined by its sequence and biological function rather than traditional physical parameters like melting point or solubility. Its behavior in biological systems is highly specific, making it suitable for targeted applications such as gene therapy and protein production.
Main Applications
Recombinant DNA is pivotal in producing biopharmaceuticals, including insulin, interferon, and monoclonal antibodies. These therapeutics are synthesized by inserting human genes into bacteria or yeast, which then produce the desired proteins. The technology has also led to advancements in vaccine development, such as the hepatitis B vaccine. In agriculture, rDNA is used to create crops with improved yield, pest resistance, or nutritional content. Examples include Bt cotton and Golden Rice. Industrial applications include enzyme production for biofuels and biodegradable plastics, showcasing the versatility of this technology.
Safety and Storage
Handling recombinant DNA requires adherence to biosafety levels (BSL) to prevent accidental release or contamination. Laboratories must follow guidelines set by organizations like the NIH and WHO. Proper storage at -20°C or -80°C is essential to maintain integrity, often with stabilizing agents like EDTA. Regulatory frameworks, such as those by the FDA and EMA, mandate rigorous testing for rDNA-derived products to ensure they are free from harmful contaminants. Ethical considerations, especially in human gene editing, are also critical, with ongoing debates about CRISPR and other advanced techniques.
B2B Procurement Guide
When procuring recombinant DNA products, buyers should verify supplier credentials, including compliance with Good Manufacturing Practices (GMP) and ISO certifications. Technical specifications, such as vector type, insert size, and host organism, must match project requirements. Pricing varies significantly based on complexity, with custom sequences commanding premium rates. Bulk purchases for industrial-scale applications may offer cost savings. Always request Certificates of Analysis (CoA) and ensure proper shipping conditions, such as dry ice for temperature-sensitive materials.
Related Manufacturers
- 主营：化学试剂、实验室耗材、实验室设备
- 主营：生化试剂、化学试剂
- 主营：大鼠白介素、小鼠脂联素、表皮生长因子、ELISA试剂盒、细胞因子、重组蛋白
- 主营：加帽酶、激活剂、甘氨酸、igg抗体、稳定液、玻璃板、试剂盒、脂蛋白、超纯水、激动剂、胆固醇、盐酸盐、因质粒、扩容剂、组化笔、驴抗人、预制胶、驴抗兔、生物驴、草甘膦、重组酶、生物素、曲拉通、去除剂、封闭液
- 主营：NIBSC标准品
- 主营：抗体试剂
- 主营：质粒dna、乙二胺、spe固相、色谱科、填料柱、去除rna、移液器、雾化室、二乙胺、总rna中、进样针、质谱仪、校正液、中心管、雾化器、pcb分析、过滤器、透明i-d、色谱柱、离心管、dpid套装、质粒pdna、96孔板液、ms检测器、热电配件
- 主营：检测试剂盒、Elisa试剂盒、农残检测试剂盒、recombinant、试剂、液相检测、测试盒、检测卡、比色法检测、荧光法检测
- 主营：Elisa试剂盒、酶联免疫试剂盒、抗体、蛋白、细胞功能检测试剂盒
- 主营：猫血清、缓冲液、马血清、鸭血清、狗血清、猴血清、青霉素、白细胞、红细胞、兔血清、鸡血清、驴血清、猪血清、骡ab血清、大鼠血清、牛蛙血清、小鼠血清、胎牛血清、鳟鱼血清、豚鼠血清、山羊血清、胰酶溶液、仓鼠血清、小牛血清、绵羊血清
- 主营：多肽合成、抗体制备、蛋白表达
- 主营：生化试剂、蛋白与免疫、ELISA、生化试剂盒、染色试剂、微生物培养、磁珠、纳米材料、抗体
- 主营：试剂盒、ELISA试剂盒、科研ELISA试剂盒、PCR试剂盒、生化试剂盒
- 主营：试剂、耗材、仪器、转染试剂、实验耗材、origene蛋白、takara试剂、CST抗体、abcam抗体、permagen磁力、polyplus转染、AcceGen细胞、qiagen试剂盒、zymo试剂盒、goldbio荧光素、Toxin肠毒素、速溶颗粒、DMEM培养基、胎牛血清、alzet渗透泵、伊莱瑞特、millipore、EZB试剂盒、细胞核悬液制备试剂盒、解离试剂盒
- 主营：白蜡树素、百两金素、半齿泽兰素