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服务介绍 点饱和突变技术是蛋白质工程中的一门新兴技术,它通过对目的蛋白的编码基因进行改造,短时间内获取靶位点氨基酸分别被其它19种氨基酸替代的突变子。此技术不仅是蛋白质定向改造的强有力工具,而且是蛋白质结构-功能关系研究的重要手段。可按客户选定的与蛋白某种功能相关的位点进行饱和突变,通过筛选获得所需要的蛋白质,进而测出其基因序列。 服务优势 ▶实验方案设计:普因特设计、优化的实验方案让您的实验结果更精确库容量:最大可达1012; ▶超高的突变精确性:突变区域最高的突变率和非突变区域最低的错误车(综合准确率>75%); ▶快速优质的服务专业的技术支持:全程为您解决任何技术与服务疑问完善的项目管理: 定时更新您的项目信息、及时追踪您的项目进展。 服务流程
文案展示 Molecular Determinants of Mutant Phenotypes, Inferred from Saturation Mutagenesis Data 期刊:Molecular Determinants of Mutant Phenotypes
Mutational effects on CcdB protein activity inferred from phenotypic screening and deep sequencing. (A), (B) and (C) show the MSseq values for representative exposed-site (accessibility >5%), all active-site and buried-site residues (accessibility 5%), respectively. On the vertical axis,residues are grouped into (G, P), aliphatic (A–M), aromatic (F–W), polar (S–Q) and charged (D–R) amino acids. Residue numbers and substitutions are indicated on the horizontal and vertical axes, respectively. Each heatmap is colored according to the MSseq value of the mutant. Green to red color gradation represents increasing MSseq values. Zero value (light green) indicates that the corresponding mutant was not observed in the library. WT residue at each position is indicated in white. Data for only representative residue positions are shown for clarity. (D) Active-site residues (highlighted in cyan) identified from the mutational phenotypes mapped onto the crystal structure of CcdB (PDB ID 3VUB). 适用领域 ▶提高蛋白活性; ▶工业用酶改造; ▶抗体亲和力突变,抗体人源化; ▶延长治疗性蛋白的血液半衰期; ▶蛋白生化性能提升(如可溶性、热稳定性,底物结合特异性); ▶农业科学,石油化工,生物工程,肿瘤研究,基因表达与调控。 |

