本工具用于计算引物Tm值,提供三种算法:SantaLucia[1]和Sugimoto[2]的方法采用经典的NN邻近原则,通过热力学参数计算Tm,适合计算20bp以内的引物,Ahsen[3]的算法考虑了离子、GC含量等因素,适合预测20-30bp的引物Tm。
请输入oligo序列:
请输入K+浓度(mmol/L):
请输入Mg2+浓度(mmol/L):
请输入dNTP浓度(mmol/L):
请输入引物浓度(μmol/L):

[1] SantaLucia,, J., Allawi, H. T., & Seneviratne, P. A. (1996). Improved Nearest-Neighbor Parameters for Predicting DNA Duplex Stability†. Biochemistry, 35(11), 3555–3562.

[2] Sugimoto, N., Nakano, S. -i., Yoneyama, M., & Honda, K. -i. (1996). Improved Thermodynamic Parameters and Helix Initiation Factor to Predict Stability of DNA Duplexes. Nucleic Acids Research, 24(22), 4501–4505.

[3] von Ahsen N, Wittwer C T, Schütz E. Oligonucleotide melting temperatures under PCR conditions: nearest-neighbor corrections for Mg2+, deoxynucleotide triphosphate, and dimethyl sulfoxide concentrations with comparison to alternative empirical formulas[J]. Clinical Chemistry, 2001, 47(11): 1956-1961.