Abstract: The invention provides methods for synthesizing a product DNA molecule of any possible DNA sequence from a universal library of overlapping oligonucleotides. The method involves combining a plurality of the overlapping oligonucleotides in a reaction pool, where the sequences of the plurality of oligonucleotides comprise at least a sub-sequence of the product DNA molecule. The method also involves annealing the plurality of oligonucleotides, performing a ligation step, and performing an amplification step to thereby synthesize a sub-sequence of the product DNA molecule. The invention can be used to synthesize a DNA molecule of any possible sequence from the universal library, which can be accomplished through a hierarchal assembly scheme. In one embodiment the universal library comprises fewer than 10,000 pre-manufactured oligonucleotides that can be synthesized into the any possible DNA sequence. In any embodiment the product DNA molecule has an error rate of less than 1 error per 2,000 nucleotides.

Abstract: The present invention discloses a multi-bar warp knitted fabric and a knitting method thereof. The fabric comprises a ground weave and at least one group of elastic yarns, wherein each group of elastic yarns is composed of two elastic yarns, characterized in that the two elastic yarns of each group are inlaid in opposite directions on at least 90% of the loops in one same wale of the ground weave. The fabric has excellent characteristics, including: in addition to maintaining the soft and comfortable hand feel and general physical properties of the fabric, the elastic yarns are not easy to wash out and fly out, and the fabric can be used with a lower finished density, thereby reducing production costs.

Abstract: The present invention discloses a multi-bar warp knitted fabric and a knitting method thereof. The fabric comprises a ground weave, a pattern weave and at least one group of elastic yarns, wherein each group of elastic yarns is composed of two elastic yarns, characterized in that the two elastic yarns of each group are inlaid in opposite directions on at least 90% of the loops in one same wale of the ground weave. The fabric has excellent characteristics, including: in addition to maintaining the soft and comfortable hand feel and general physical properties of the fabric, the elastic yarns are not easy to wash out and fly out, and the fabric can be used with a lower finished density, thereby reducing production costs.

Abstract: The invention provides methods of synthesizing a product DNA molecule having a desired and/or defined sequence. The methods involve annealing at least one long oligonucleotide and at least one short oligonucleotide to at least one anchor strand having a sequence at least partially complementary to the at least one long and at least one short oligonucleotide. After annealing, at least one long oligonucleotide bound to an anchor strand abuts at least one short oligonucleotide bound to the same anchor strand. The anchor strand has one or more non-standard nucleotides, and optionally one or more degenerate nucleotides. The method involves ligating the abutting at least one long oligonucleotide and at least one short oligonucleotide to form a dsDNA molecule. The invention also provides methods of synthesizing DNA molecules by assembling oligonucleotide members of a library that contains less than 20,000 members that can be assembled into all possible DNA sequences.

Abstract: The invention provides compositions and methods for assembling a DNA molecule having a desired sequence. The methods involve contacting a DNA polymerase, dNTPs, and a plurality of pairs of oligonucleotides. The oligonucleotides of a pair have a portion of the desired sequence, and an internal sequence that overlaps and is complementary to an internal sequence of the other oligonucleotide of the pair, and, when arranged in order, they have at least a portion of the desired sequence. The oligonucleotides also have a 3? or a 5? primer binding sequence having a binding site for a primer. The oligonucleotides that correspond to the end oligonucleotides of the desired sequence also have a universal 3? flanking sequence and a universal 5? flanking sequence, respectively.

Abstract: The invention provides methods of assembling a DNA molecule having a desired sequence. The methods involve contacting a DNA ligase with a plurality of short oligonucleotides to be assembled and performing the ligase chain reaction to thereby generate a set of polynucleotides. Oligonucleotides in the plurality overlap with and are complementary to a sequence of at least one other oligonucleotide in the plurality, and at least 50% of the oligonucleotides in the plurality are 6-30 nucleotides in length. The set of polynucleotides produced are contacted with a DNA polymerase and dNTPs in a mixture to join the set of polynucleotides and thereby create a DNA molecule having a desired sequence by polymerase chain assembly. The method allows for production of oligonucleotides of any length having very high sequence fidelity to a desired sequence.

Abstract: The invention provides compositions and methods for assembling a DNA molecule having a desired sequence. The methods involve contacting a DNA polymerase, dNTPs, and a plurality of pairs of oligonucleotides. The oligonucleotides of a pair have a portion of the desired sequence, and an internal sequence that overlaps and is complementary to an internal sequence of the other oligonucleotide of the pair, and, when arranged in order, they have at least a portion of the desired sequence. The oligonucleotides also have a 3? or a 5? primer binding sequence having a binding site for a primer. The oligonucleotides that correspond to the end oligonucleotides of the desired sequence also have a universal 3? flanking sequence and a universal 5? flanking sequence, respectively.

Abstract: The invention provides compositions and methods for assembling a DNA molecule having a desired sequence. The methods involve contacting a DNA polymerase, dNTPs, and a plurality of pairs of oligonucleotides. The oligonucleotides of a pair have a portion of the desired sequence, and an internal sequence that overlaps and is complementary to an internal sequence of the other oligonucleotide of the pair, and, when arranged in order, they have at least a portion of the desired sequence. The oligonucleotides also have a 3? or a 5? primer binding sequence having a binding site for a primer. The oligonucleotides that correspond to the end oligonucleotides of the desired sequence also have a universal 3? flanking sequence and a universal 5? flanking sequence, respectively.