Dubnick M, Lewis L K, Mount D W
Department of Molecular and Cellular Biology, University of Arizona, Tucson 85721.
Nucleic Acids Res. 1988 Mar 11;16(5):1703-14. doi: 10.1093/nar/16.5.1703.
We have written a computer program, BIGPROBE, which facilitates the design of long nucleic acid probes from the partial or complete amino acid sequence of a protein. BIGPROBE relies upon information on codon usage, intercodon dinucleotide frequency, and potential probe self-complementarity. We have examined the accuracy with which the program predicts coding sequences using sample human and rat genes and probe lengths of 30-60 nucleotides. Rat probe sequences selected by BIGPROBE using either codon usage or dinucleotide frequency data alone averaged 86-92% homology with the known exons of the corresponding gene sequences. Predictive accuracy with rat gene probes could be improved to 89-94%, depending upon probe length, by applying codon usage and dinucleotide frequency data in combination. Similar accuracy was achieved for human genes.
我们编写了一个计算机程序BIGPROBE,它有助于根据蛋白质的部分或完整氨基酸序列设计长核酸探针。BIGPROBE依赖于密码子使用情况、密码子间二核苷酸频率以及潜在探针自身互补性的信息。我们使用人类和大鼠的样本基因以及30至60个核苷酸的探针长度,检验了该程序预测编码序列的准确性。仅使用密码子使用情况或二核苷酸频率数据,由BIGPROBE选择的大鼠探针序列与相应基因序列的已知外显子平均具有86 - 92%的同源性。通过联合应用密码子使用情况和二核苷酸频率数据,根据探针长度不同,大鼠基因探针的预测准确性可提高到89 - 94%。对于人类基因也获得了类似的准确性。