11-02-2016 дата публикации
Номер: US20160040149A1
Принадлежит:
Compositions and methods comprising polynucleotides and polypeptides having dicamba decarboxylase activity are provided. Further provided are nucleic acid constructs, host cells, plants, plant cells, explants, seeds and grain having the dicamba decarboxylase sequences. Various methods of employing the dicamba decarboxylase sequences are provided. Such methods include, for example, methods for decarboxylating an auxin-analog, method for producing an auxin-analog tolerant plant, plant cell, explant or seed and methods of controlling weeds in a field containing a crop employing the plants and/or seeds disclosed herein. Methods are also provided to identify additional dicamba decarboxylase variants. 1. A recombinant polypeptide having dicamba decarboxylase activity comprising:(a) an amino acid sequence having a similarity score of at least 548 for any one of SEQ ID NO: 51, 89, 79, 81, 95, or 100, wherein the similarity score is generated using the BLAST alignment program, with the BLOSUM62 substitution matrix, a gap existence penalty of 11, and a gap extension penalty of 1;(b) an amino acid sequence having at least 60%, 70%, 75%, 80% 90%, 95% or 100% sequence identity to any one of SEQ ID NOS: 1, 2, 4, 5, 16, 19, 21, 22, 26, 28, 30, 21, 32, 33, 34, 35, 36, 41, 43, 44, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 79, 81, 87, 88, 89, 91, 108, 109, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, or 129; or,(c) an amino acid sequence having at least 60%, 70%, 75%, 80% 90%, or 95% sequence identity to SEQ ID NO: 1, 2, 4, 5, 16, 19, 21, 22, 26, 28, 30, 21, 32, 33, 34, 35, 36, 41, 43, 44, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 79, 81, 87, 88, 89, 91, 108, 109, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, or 129;wherein the recombinant polypeptide comprises an active site having a catalytic residue geometry as set forth in Table 3 or having a substantially similar ...
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