Uniquely Tagged Rearranged Adaptive Immune Receptor Genes in a Complex Gene Set
Compositions and methods are disclosed for uniquely tagging each rearranged gene segment that encodes a T cell receptor (TCR) and/or an immunoglobulin (Ig), in a DNA (or mRNA or cDNA reverse transcribed therefrom) sample from lymphoid cells. These and related embodiments permit accurate, high throughput quantification of distinct TCR and/or Ig encoding sequences. Also provided are compositions and methods for quantitatively sequencing the genes that encode both chains of a TCR or Ig heterodimer in a single cell, for example, to characterize the degree of T or B cell clonality in a sample.
1 - 43 . (canceled)
44 . A method of pairing a first adaptive immune receptor (AIR) polypeptide and a second AIR polypeptide as a cognate AIR heterodimer, wherein the cognate AIR heterodimer is from a single lymphoid cell clone present in a sample comprising a plurality of lymphoid cells from a mammalian subject, said method comprising:
(1) distributing said plurality of lymphoid cells among a plurality of containers such that each container comprises a plurality of lymphoid cells;
(2) generating a library of amplicons in said plurality of containers by performing multiplex PCR of cDNA molecules, wherein the cDNA molecules have been reverse-transcribed from mRNA molecules obtained from the plurality of lymphoid cells, and wherein said library of amplicons comprises:
i) a plurality of first AIR amplicons encoding a first AIR polypeptide, wherein each first AIR amplicon comprises (a) a unique variable (V) region encoding sequence or a unique J region encoding sequence, (b) a barcode sequence, (c) a universal adaptor sequence, and (d) a sequencing platform tag sequence, and
ii) a plurality of second AIR amplicons encoding a second AIR polypeptide, wherein each second AIR amplicon comprises (a) a unique V region encoding sequence or a unique J region encoding sequence, (b) a barcode sequence, (c) a universal adaptor sequence, and (d) a sequencing platform tag sequence;
(3) performing high throughput sequencing of said library of amplicons generated in step (2) to obtain a plurality of first AIR amplicon sequences and second AIR amplicon sequences;
(4) determining a container occupancy pattern for each first AIR amplicon sequence and each second AIR amplicon sequence by assigning each first AIR amplicon sequence and each second AIR amplicon sequence to one or more containers, wherein each barcode sequence is associated with a particular container;
(5) identifying putative AIR cognate pairs by comparing the occupancy patterns of the first and second AIR amplicon sequences, wherein putative AIR cognate pairs are identified as those having a larger proportion of shared containers than expected by chance;
(6) generating a target false discovery rate (FDR) and identifying putative AIR cognate pairs that satisfy the target FDR; and
(7) pairing a first AIR polypeptide and a second AIR polypeptide that satisfy the target FDR as a cognate AIR heterodimer.
45 . The method of claim 44 , wherein the plurality of containers comprises wells of a multi-well plate.
46 . The method of claim 44 , wherein said first polypeptide comprises a TCRα polypeptide and said second polypeptide comprises a TCRβ polypeptide, wherein said first polypeptide comprises a TCRγ polypeptide and said second polypeptide comprises a TCRδ polypeptide, wherein said first polypeptide comprises an IgH polypeptide and said second polypeptide comprises an Igλ polypeptide, or wherein said first polypeptide comprises an IgH polypeptide and said second polypeptide comprises an Igκ polypeptide.
47 . The method of claim 44 , wherein said first polypeptide comprises a TCRα polypeptide and said second polypeptide comprises a TCRβ polypeptide.
48 . The method of claim 44 , wherein said first polypeptide comprises an IgH polypeptide and said second polypeptide comprises an Igκ polypeptide.
49 . The method of claim 44 , wherein said sample comprises a blood sample.
50 . The method of claim 44 , wherein said sample comprises a tissue sample.
51 . The method of claim 44 , wherein said sample comprises purified or cultured human lymphoid cells.
52 . The method of claim 44 , wherein each container comprises at least 10 4 lymphoid cells.
53 . The method of claim 44 , wherein the target false discovery rate is less than 1%.
54 . An oligonucleotide amplification primer composition, comprising:
(A) a first oligonucleotide amplification primer set comprising a plurality of forward oligonucleotide sequences of a general formula (A):
U1-B1-V1 (A),
and a plurality of reverse oligonucleotide sequences of a general formula (B): U2-B2-JI (B),
wherein UI comprises an oligonucleotide sequence comprising a first universal adaptor oligonucleotide sequence, and U2 comprises an oligonucleotide sequence comprising a second universal adaptor oligonucleotide sequence,
wherein BI comprises an oligonucleotide that comprises either nothing or a first oligonucleotide barcode sequence of 6 to 20 contiguous nucleotides, and B2 comprises an oligonucleotide that comprises either nothing or a first oligonucleotide barcode sequence of 6 to 20 contiguous nucleotides, such that at least one of BI or B2 is present,
wherein VI comprises an oligonucleotide sequence comprising at least 15 and not more than 100 contiguous nucleotides of a V region encoding gene sequence of a first adaptive immune receptor, or the complement thereof,
wherein JI comprises an oligonucleotide sequence comprising at least 15 and not more than 80 contiguous nucleotides of (i) a joining (J) region encoding gene sequence of said first adaptive immune receptor, or the complement thereof, or (ii) a constant (C) region encoding gene sequence of said first adaptive immune receptor, or the complement thereof, and in each of the plurality of oligonucleotide sequences of general formula U1-B1-V1, VI comprises a unique oligonucleotide sequence, and in each of the plurality of oligonucleotide sequences of general formula U2-B2-J1, JI comprises a unique oligonucleotide sequence; and
(B) a second oligonucleotide amplification primer set comprising a plurality of forward oligonucleotide sequences of a general formula (C):
U3-B3-V2 (C),
and a plurality of reverse oligonucleotide sequences of a general formula (D): U4-B4-J2 (D), wherein U3 comprises an oligonucleotide sequence identical to either UI or U2, and U4 comprises an oligonucleotide sequence identical to either UI or U2, whichever sequence is not identical to U3,
wherein B3 comprises an oligonucleotide sequence comprising an oligonucleotide barcode sequence of 6 to 20 contiguous nucleotides that is the same as BI, and B4 comprises an oligonucleotide sequence comprising an oligonucleotide barcode sequence of 6 to 20 contiguous nucleotides that is the same as B2, and
wherein V2 comprises an oligonucleotide sequence comprising at least 15 and not more than 100 contiguous nucleotides of a V region encoding gene sequence of a second adaptive immune receptor, or the complement thereof,
wherein J2 comprises an oligonucleotide sequence comprising at least 15 and not more than 80 contiguous nucleotides of (i) a joining (J) region encoding gene sequence of said second adaptive immune receptor, or the complement thereof, or (ii) a constant (C) region encoding gene sequence of said second adaptive immune receptor, or the complement thereof, and in each of the plurality of oligonucleotide sequences of general formula U3-B3-V2, V2 comprises a unique oligonucleotide sequence, and in each of the plurality of oligonucleotide sequences of general formula U4-B4-J2, J2 comprises a unique oligonucleotide sequence.