PLEASE NOTE: New guidelines for ordering modified oligos
1. The new ordering system is without the dropdown fields for 5', internal and 3' modifications.
2. We advise each modified oligos be predesigned using the codes for each modification and placing these in the sequence. This can be pasted in the sequence field. You can import an excel file also.
2. Modification codes are at this link. and
Modification Reference Categories are at this link.
3. For degenerate (mixed bases) positions use the following IUB codes. R=A+G; Y=C+T; M=A+C; K=G+T; S=G+C; W=A+T; H=A+T+C; B=G+T+C; D=G+A+T; V=G+A+C; N=A+C+G+T.
4.Scale of synthesis and standard yield based on oligo length is at this link.