Overview
Serial polypeptides are short to medium-length chains of amino acids (typically 2–50 residues) with defined sequences. They bridge the gap between small molecules and large proteins in pharmaceutical and cosmetic applications. These compounds are synthesized through solid-phase peptide synthesis (SPPS) or recombinant methods, with sequences designed to mimic bioactive regions of larger proteins. Their modular nature allows precise tuning of therapeutic or functional properties.
Physical and Chemical Properties
The properties of serial polypeptides vary significantly based on their amino acid composition and sequence. Hydrophobicity, charge distribution, and secondary structure propensity determine solubility and stability profiles. Most therapeutic-grade polypeptides exhibit poor oral bioavailability due to enzymatic degradation in the GI tract. They typically require parenteral administration or formulation with penetration enhancers. Stability is often enhanced through lyophilization or storage in buffered solutions at controlled temperatures.
Main Applications
In pharmaceuticals, serial polypeptides serve as active ingredients in diabetes treatments (e.g., GLP-1 analogs), antimicrobial peptides, and targeted cancer therapies. Their high specificity and low toxicity make them attractive alternatives to small-molecule drugs. The cosmetics industry utilizes signal peptides for anti-aging (e.g., Matrixyl), carrier peptides for active delivery, and neurotransmitter-inhibiting peptides for wrinkle reduction. Research applications include cell culture additives, enzyme substrates, and antibody production triggers.
Safety and Storage
Proper handling requires attention to hygroscopicity and thermal instability. Most polypeptides degrade rapidly at room temperature, necessitating cold chain management during transport and storage. While generally non-toxic, some sequences may cause immunogenic reactions or local irritation. Material Safety Data Sheets (MSDS) should always be consulted for specific sequences. Sterile filtration or gamma irradiation may be required for injectable-grade materials.
B2B Procurement Guide
When sourcing serial polypeptides, buyers should verify the supplier's quality control measures, including HPLC purity certificates, mass spectrometry verification, and endotoxin testing. Minimum order quantities often apply due to custom synthesis requirements. Lead times vary from weeks for catalog items to months for novel sequences. Consider requesting stability data and analytical method validation reports. For large-scale purchases, audit the manufacturer's cGMP compliance if the peptides are intended for clinical use.
Related Manufacturers
- 主营：ELISA试剂盒、检测试剂盒、生化试剂盒、pcr检测试剂盒、细胞
- 主营：脂蛋白、能受体、gla蛋白、人I类多肽相关序列A、磷脂酶、蛋白酶、酮戊二、p53诱导、样因子、大鼠iii、jo1抗体、p21蛋白、糖蛋白、大鼠肝、akt蛋白、磷酸酶、样蛋白、ca-mg-atp、双链dna、联蛋白、域蛋白、羟甲基、抗抗体、合成酶、前胶原、大鼠羧
- 主营：小鼠脾、besc20035、细胞系、人皮肤、试剂盒、兔结肠、兔膀胱、猪子宫、人胶质、猪骨髓、聚合酶、兔食管、兔胰腺、猪心肌、猪淋巴、bes2016dp、兔气管、兔子宫、besc20114、besc20110、核苷酸、besc20301、兔尿道、兔真皮、兔气道
- 主营：人elisa试剂盒、大鼠elisa试剂盒、小鼠elisa试剂盒、人I类多肽相关序列A、其他种属elisa试剂盒、植物elisa试剂盒、elisa试剂盒、elisa
- 主营：黄芪提取物、沙棘提取物、大枣多糖、葵花盘多肽、山楂提取物、山药提取物、枸杞提取物、甘草提取物、人参提取物、丹参提取物、柴胡提取物、牛蒡根提取物、薏苡仁提取物、白芍提取物、车前子提取物、益母草提取物、土茯苓提取物、百合提取物、决明子提取物、菊粉、大豆蛋白、胶原蛋白肽、大枣粉、山药粉、生姜提取物
- 主营：辣木叶提取物、人参粉、桑葚粉、人参多肽、陈皮提取物、藜麦肽、蓝莓粉、白芸豆提取物、甘草粉、枸杞提取物、沙棘粉、牡蛎肽、当归提取物、雪莲培养物、苹果粉、柑橘膳食纤维、淫羊藿提取物、肉苁蓉提取物、覆盆子粉、山药提取物、便秘果提取物、可水溶萃取粉、半边苏浓缩粉、半边苏提取物、甜石莲水提浸膏粉、淫羊藿双甙10%
- 主营：枸杞多糖、葛根提取物、猴头菇提取物、人参多肽、黑枸杞提取物、芒果粉、苹果粉、桑椹粉、火龙果粉、板蓝根提取物、酸枣仁肽、燕麦肽、丁香提取物、金银花提取物、百合提取物、茯苓提取物、赤小豆提取物、桑叶提取物、荷叶提取物、砂仁提取物、蔓越莓提取物、白桦茸提取物、樱桃粉
- 主营：油莎豆提取物、黄精多糖、山药粉、海参多肽、胡萝卜提取物、人参提取物、百合提取物、绿豆提取物、蚕蛹蛋白粉、蒲公英多糖、粉葛提取物、五指毛桃粉、覆盆子提取物、三七提取物、绣球菌速溶粉、枸杞提取物、甘草提取物、青苹果果粉、牛骨胶原蛋白肽、葛根提取物、银杏叶提取物、胖大海浸膏粉、绞股蓝浓缩粉、酸枣仁提取物、牛骨髓粉
- 主营：藤茶提取物、枳椇子提取物、二氢槲皮素、金蝉花多肽、槲皮素、地龙蛋白肽、马齿苋提取物、甘草提取物、黄芪粉、罗汉果粉、鱼腥草提取物、淡竹叶提取物、竹叶黄酮、葛根提取物、玉米低聚肽、酸枣仁提取物、荷叶提取物、人参提取物、蒲公英提取物、益智仁提取物、桑叶提取物、阿胶粉、麦芽提取物
- 主营：植物提取物、新资源食品饮料原料、藜麦肽、化妆品类提取物、浸膏、果粉、植物性饲料原料、五谷杂粮粉、蔬菜粉、食品饮料原料
- 主营：药食同源植物提取物、果蔬粉、新食品原料提取物、枸杞粉、党参粉、黄精粉、桂圆粉
- 主营：催化剂、胆酸、氧化剂、酶类、光引发剂、生物缓冲剂、交联剂、光敏剂、樟脑醌、十二氢十二硼双钠盐、磷钼酸、钼酸钾、6-二羟基吲哚、6-羟基吲哚、荧光增白剂、葡甲胺、N-乙基哌嗪、L-脯氨酸、鹅去氧胆酸、石胆酸
- 主营：固体饮料、片剂、泡腾片、多肽L、植物饮品、粉剂、颗粒、胶原蛋白肽、特殊膳食、玫瑰油凝胶糖果、蛋白固体饮料、粉剂代加工、果蔬固体饮料、软胶囊、益生菌固体饮料、酵素、白芸豆压片糖果、蓝莓叶黄素酯、口服液代工、oem定制代加工、消字号加工
- 主营：rgd环肽类产品、DMG-PEG
- 主营：压片糖果、固体饮料、OEM贴牌定制、多肽饮品、粉剂片剂、口服液、软胶囊、凝胶糖果、植物饮料代加工、泡腾片生产
- 主营：6-萘二羧酸、邻苯甲酰苯甲酸、偶联剂、硅烷偶联剂、kh-602、十八硫醇、碳酸铯、胆酸钠、脱氧胆酸钠、去氧胆酸钠、去氢胆酸、溴代丙二醛、茶籽油、聚钨酸钠、氰乙酸甲酯、沙棘籽油、乙酰氧基氮杂环丁酮、桔子油、亚麻油、柠檬桉醇、芳樟醇、二氟苯胺、萃取剂、乙酰氧基苯乙烯
- 主营：口服液代工厂、刺梨饮料、果汁饮料代工厂、多肽肌酸粉、沙棘饮料、维生素饮料、油柑酵素饮料、瓶装功能饮品、西梅汁代工厂、易拉罐饮料代工厂、运动饮料、胶原蛋白肽口服液、玻尿酸口服液、透明质酸钠口服液、人参口服液、葛根玉米肽口服液、左旋右碱咖啡、压片糖果代工厂、固体饮料、功能性饮料代工厂、防弹咖啡、代餐粉、胶原蛋白粉、果蔬酵素粉、骆驼奶粉代工厂
- 主营：硫酸烟酰苯胺、聚苯胺、硫酸阿托品、类蛇毒三肽、表面活性剂、光引发剂、离子液体、乙基纤维素、缓蚀剂、OB酸、N-油酰肌氨酸
- 主营：化工中间体、有机中间体、香精香料、添加剂、表面活性剂、天然/合成树脂、分析试剂、日化原料、催化剂、高分子材料