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    • 28. 发明授权
    • Anchor libraries and identification of peptide binding sequences
    • 锚定文库和肽结合序列的鉴定
    • US06475806B1
    • 2002-11-05
    • US08479660
    • 1995-06-07
    • Howard BenjaminEthan SignerMalcolm Gefter
    • Howard BenjaminEthan SignerMalcolm Gefter
    • G01N33543
    • C40B40/02C07K1/047C12N15/1037
    • An anchor library is described. A collection of recombinant vectors having a nucleic acid encoding a displayed peptide sequence is provided. The displayed peptide sequence of each of the vectors comprises X1(Y1)c1X2(Y2)c2X3(Y3)c3X4, wherein each X1, X2, X3 and X4 is an amino acid residue and any of X1, X2, X3 and X4 can be the same or different from any one other, wherein each Y1, Y2 and Y3 is alanine or glycine or a combination of alanine and glycine that is respectively c1, c2 and c3 amino acid residues long and any of Y1, Y2 and Y3 if present can be the same or different from any one other, wherein each of c1, c2 and c3 is 0 to about 20, wherein X1 and X4 are each attached to an amino acid residue that flanks the displayed peptide sequence. Preferably, at least about 105 to about 108 permutations of all possible permutations of the displayed peptide sequence are present in the anchor library. Preferably, the library does not contain more than about 10% of displayed peptide sequences different from the first mentioned displayed peptide sequences. Also described are methods of making anchor libraries and methods of using anchor libraries to identify a peptide sequence that binds to a target. Recombinant vectors, filamentous phage, nucleic acid molecules and proteins are also provided.
    • 描述了一个锚库。 提供了具有编码显示的肽序列的核酸的重组载体的集合。 每个载体的显示的肽序列包含X1(Y1)c1X2(Y2)c2X3(Y3)c3X4,其中X1,X2,X3和X4是氨基酸残基,X1,X2,X3和X4中的任一个可以是 其中每个Y1,Y2和Y3分别是丙氨酸或甘氨酸或分别为c1,c2和c3氨基酸残基长的丙氨酸和甘氨酸的组合,如果存在,Y1,Y2和Y3中的任何一个可以 可以相同或不同,其中c1,c2和c3各自为0至约20,其中X1和X4各自连接于所显示的肽序列侧翼的氨基酸残基。 优选地,显示的肽序列的所有可能排列的至少约105至约108个排列存在于锚库中。 优选地,文库不含超过约10%的显示肽序列,其不同于第一个提到的显示的肽序列。 还描述了制备锚定文库的方法以及使用锚定文库来鉴定与靶标结合的肽序列的方法。 还提供了重组载体,丝状噬菌体,核酸分子和蛋白质。