Compositions, reactions mixtures, kits, and systems for detecting bacterial contamination are provided, as well as methods of using the same.

Compositions, reactions mixtures, kits, and systems for detecting bacterial contamination are provided, as well as methods of using the same.

The present invention provides methods for enriching a target complementary DNA (cDNA), comprising: (a) providing a plurality of cDNAs, each comprising a first universal sequence at an end, and wherein the plurality of cDNAs comprises the target cDNA; (b) amplifying the target cDNA with a universal forward primer complementary to the first universal sequence and a gene specific reverse primer, and wherein a second universal sequence is added to an end of the cDNA opposite the first universal sequence, by a nucleic acid amplification reaction, by ligation, or by a primer extension reaction; and (c) amplifying the amplicons or extension products using the universal forward primer and a universal reverse primer complementary to the second universal sequence. In one embodiment, the universal forward primer, the gene specific reverse primer and the second universal reverse primer are provided in the same reaction mixture such that the amplifying is a single step.

The present invention provides methods for enriching a target complementary DNA (cDNA), comprising: (a) providing a plurality of cDNAs, each comprising a first universal sequence at an end, and wherein the plurality of cDNAs comprises the target cDNA; (b) amplifying the target cDNA with a universal forward primer complementary to the first universal sequence and a gene specific reverse primer, and wherein a second universal sequence is added to an end of the cDNA opposite the first universal sequence, by a nucleic acid amplification reaction, by ligation, or by a primer extension reaction; and (c) amplifying the amplicons or extension products using the universal forward primer and a universal reverse primer complementary to the second universal sequence. In one embodiment, the universal forward primer, the gene specific reverse primer and the second universal reverse primer are provided in the same reaction mixture such that the amplifying is a single step.

The present disclosure provides methods, compositions, kits, and systems useful in the determination and evaluation of the immune repertoire using genomic DNA from a biological sample. In one aspect, target-specific primer panels provide for the effective amplification of sequences of T cell receptor and/or B cell receptor chains with improved sequencing accuracy and resolution over the repertoire. Nucleic acid sequences of variable regions associated with the immune cell receptor are determined to effectively portray clonal diversity of a biological sample and/or differences associated with the immune cell repertoire of a biological sample.

The present disclosure provides methods, compositions, kits, and systems useful in the determination and evaluation of the immune repertoire using genomic DNA from a biological sample. In one aspect, target-specific primer panels provide for the effective amplification of sequences of T cell receptor and/or B cell receptor chains with improved sequencing accuracy and resolution over the repertoire. Nucleic acid sequences of variable regions associated with the immune cell receptor are determined to effectively portray clonal diversity of a biological sample and/or differences associated with the immune cell repertoire of a biological sample.

The present disclosure provides methods, compositions, kits, and systems useful in the determination and evaluation of the immune repertoire. In one aspect, methods provide for determining convergence of T cell receptor and/or B cell receptor repertoires in samples prior to a treatment and predicting a subjects response to the treatment based on the measured convergence frequency. In another aspect, methods provide for an immune receptor haplotype group and predicting a subjects potential or predisposition to be protected from or vulnerable to an adverse event following a treatment.

The present disclosure provides methods, compositions, kits, and systems useful in the determination and evaluation of the immune repertoire. In one aspect, methods provide for determining convergence of T cell receptor and/or B cell receptor repertoires in samples prior to a treatment and predicting a subjects response to the treatment based on the measured convergence frequency. In another aspect, methods provide for an immune receptor haplotype group and predicting a subjects potential or predisposition to be protected from or vulnerable to an adverse event following a treatment.

The present disclosure provides methods, compositions, kits, and systems useful in the determination and evaluation of the immune repertoire using genomic DNA from a biological sample. In one aspect, target-specific primer panels provide for the effective amplification of sequences of T cell receptor and/or B cell receptor chains with improved sequencing accuracy and resolution over the repertoire. Nucleic acid sequences of variable regions associated with the immune cell receptor are determined to effectively portray clonal diversity of a biological sample and/or differences associated with the immune cell repertoire of a biological sample.

The present disclosure provides methods, compositions, kits, and systems useful in the determination and evaluation of the immune repertoire using genomic DNA from a biological sample. In one aspect, target-specific primer panels provide for the effective amplification of sequences of T cell receptor and/or B cell receptor chains with improved sequencing accuracy and resolution over the repertoire. Nucleic acid sequences of variable regions associated with the immune cell receptor are determined to effectively portray clonal diversity of a biological sample and/or differences associated with the immune cell repertoire of a biological sample.