id sid tid token lemma pos wh246q21940 1 1 the the DET wh246q21940 1 2 adaptive adaptive ADJ wh246q21940 1 3 immune immune ADJ wh246q21940 1 4 system system NOUN wh246q21940 1 5 provides provide VERB wh246q21940 1 6 a a DET wh246q21940 1 7 highly highly ADV wh246q21940 1 8 specialized specialized ADJ wh246q21940 1 9 pathway pathway NOUN wh246q21940 1 10 , , PUNCT wh246q21940 1 11 which which PRON wh246q21940 1 12 can can AUX wh246q21940 1 13 recognize recognize VERB wh246q21940 1 14 and and CCONJ wh246q21940 1 15 protect protect VERB wh246q21940 1 16 against against ADP wh246q21940 1 17 pathogens pathogen NOUN wh246q21940 1 18 . . PUNCT wh246q21940 2 1 the the DET wh246q21940 2 2 cell cell NOUN wh246q21940 2 3 - - PUNCT wh246q21940 2 4 mediated mediate VERB wh246q21940 2 5 immune immune ADJ wh246q21940 2 6 response response NOUN wh246q21940 2 7 is be AUX wh246q21940 2 8 a a DET wh246q21940 2 9 component component NOUN wh246q21940 2 10 of of ADP wh246q21940 2 11 the the DET wh246q21940 2 12 adaptive adaptive ADJ wh246q21940 2 13 immune immune ADJ wh246q21940 2 14 system system NOUN wh246q21940 2 15 which which PRON wh246q21940 2 16 responds respond VERB wh246q21940 2 17 to to ADP wh246q21940 2 18 infected infected ADJ wh246q21940 2 19 or or CCONJ wh246q21940 2 20 aberrant aberrant ADJ wh246q21940 2 21 cells cell NOUN wh246q21940 2 22 . . PUNCT wh246q21940 3 1 t t PROPN wh246q21940 3 2 - - PUNCT wh246q21940 3 3 cell cell NOUN wh246q21940 3 4 receptors receptor NOUN wh246q21940 3 5 ( ( PUNCT wh246q21940 3 6 tcrs tcrs PROPN wh246q21940 3 7 ) ) PUNCT wh246q21940 3 8 are be AUX wh246q21940 3 9 heterodimeric heterodimeric ADJ wh246q21940 3 10 molecules molecule NOUN wh246q21940 3 11 expressed express VERB wh246q21940 3 12 on on ADP wh246q21940 3 13 the the DET wh246q21940 3 14 surface surface NOUN wh246q21940 3 15 of of ADP wh246q21940 3 16 t t NOUN wh246q21940 3 17 lymphocytes lymphocyte NOUN wh246q21940 3 18 . . PUNCT wh246q21940 4 1 their their PRON wh246q21940 4 2 function function NOUN wh246q21940 4 3 is be AUX wh246q21940 4 4 to to PART wh246q21940 4 5 recognize recognize VERB wh246q21940 4 6 peptide peptide NOUN wh246q21940 4 7 antigens antigen NOUN wh246q21940 4 8 presented present VERB wh246q21940 4 9 on on ADP wh246q21940 4 10 major major ADJ wh246q21940 4 11 histocompatibility histocompatibility NOUN wh246q21940 4 12 complex complex NOUN wh246q21940 4 13 ( ( PUNCT wh246q21940 4 14 mhc mhc NOUN wh246q21940 4 15 ) ) PUNCT wh246q21940 4 16 proteins protein NOUN wh246q21940 4 17 , , PUNCT wh246q21940 4 18 which which PRON wh246q21940 4 19 are be AUX wh246q21940 4 20 expressed express VERB wh246q21940 4 21 on on ADP wh246q21940 4 22 the the DET wh246q21940 4 23 surface surface NOUN wh246q21940 4 24 of of ADP wh246q21940 4 25 antigen antigen NOUN wh246q21940 4 26 presenting present VERB wh246q21940 4 27 cells cell NOUN wh246q21940 4 28 ( ( PUNCT wh246q21940 4 29 apcs apc NOUN wh246q21940 4 30 ) ) PUNCT wh246q21940 4 31 . . PUNCT wh246q21940 5 1 the the DET wh246q21940 5 2 repertoire repertoire NOUN wh246q21940 5 3 of of ADP wh246q21940 5 4 tcrs tcrs NOUN wh246q21940 5 5 is be AUX wh246q21940 5 6 the the DET wh246q21940 5 7 result result NOUN wh246q21940 5 8 of of ADP wh246q21940 5 9 the the DET wh246q21940 5 10 thymic thymic ADJ wh246q21940 5 11 education education NOUN wh246q21940 5 12 process process NOUN wh246q21940 5 13 during during ADP wh246q21940 5 14 , , PUNCT wh246q21940 5 15 which which PRON wh246q21940 5 16 precursor precursor NOUN wh246q21940 5 17 t t NOUN wh246q21940 5 18 cells cell NOUN wh246q21940 5 19 undergo undergo VERB wh246q21940 5 20 both both PRON wh246q21940 5 21 positive positive ADJ wh246q21940 5 22 and and CCONJ wh246q21940 5 23 negative negative ADJ wh246q21940 5 24 selection selection NOUN wh246q21940 5 25 to to PART wh246q21940 5 26 acquire acquire VERB wh246q21940 5 27 tolerance tolerance NOUN wh246q21940 5 28 of of ADP wh246q21940 5 29 self self NOUN wh246q21940 5 30 - - PUNCT wh246q21940 5 31 peptides peptide NOUN wh246q21940 5 32 presented present VERB wh246q21940 5 33 on on ADP wh246q21940 5 34 self self NOUN wh246q21940 5 35 - - PUNCT wh246q21940 5 36 mhc mhc NOUN wh246q21940 5 37 molecule molecule NOUN wh246q21940 6 1 [ [ X wh246q21940 6 2 1 1 NUM wh246q21940 6 3 ] ] PUNCT wh246q21940 6 4 . . PUNCT wh246q21940 7 1 however however ADV wh246q21940 7 2 , , PUNCT wh246q21940 7 3 tcrs tcr NOUN wh246q21940 7 4 are be AUX wh246q21940 7 5 capable capable ADJ wh246q21940 7 6 of of ADP wh246q21940 7 7 responding respond VERB wh246q21940 7 8 to to ADP wh246q21940 7 9 foreign foreign ADJ wh246q21940 7 10 or or CCONJ wh246q21940 7 11 non non ADJ wh246q21940 7 12 - - ADJ wh246q21940 7 13 self self ADJ wh246q21940 7 14 mhc mhc NOUN wh246q21940 7 15 proteins protein NOUN wh246q21940 7 16 in in ADP wh246q21940 7 17 a a DET wh246q21940 7 18 well well ADV wh246q21940 7 19 - - PUNCT wh246q21940 7 20 established establish VERB wh246q21940 7 21 phenomenon phenomenon NOUN wh246q21940 7 22 termed term VERB wh246q21940 7 23 alloreactivity alloreactivity NOUN wh246q21940 7 24 , , PUNCT wh246q21940 7 25 as as SCONJ wh246q21940 7 26 evidenced evidence VERB wh246q21940 7 27 by by ADP wh246q21940 7 28 the the DET wh246q21940 7 29 rejection rejection NOUN wh246q21940 7 30 of of ADP wh246q21940 7 31 transplanted transplant VERB wh246q21940 7 32 organs organ NOUN wh246q21940 7 33 and and CCONJ wh246q21940 7 34 graft graft NOUN wh246q21940 7 35 - - PUNCT wh246q21940 7 36 versus versus ADP wh246q21940 7 37 - - PUNCT wh246q21940 7 38 host host NOUN wh246q21940 7 39 disease disease NOUN wh246q21940 7 40 ( ( PUNCT wh246q21940 7 41 gvhd).t gvhd).t NOUN wh246q21940 7 42 - - PUNCT wh246q21940 7 43 cell cell NOUN wh246q21940 7 44 receptor receptor NOUN wh246q21940 7 45 ( ( PUNCT wh246q21940 7 46 tcr tcr PROPN wh246q21940 7 47 ) ) PUNCT wh246q21940 7 48 allorecognition allorecognition NOUN wh246q21940 7 49 is be AUX wh246q21940 7 50 often often ADV wh246q21940 7 51 believed believe VERB wh246q21940 7 52 to to PART wh246q21940 7 53 proceed proceed VERB wh246q21940 7 54 with with ADP wh246q21940 7 55 limited limited ADJ wh246q21940 7 56 specificity specificity NOUN wh246q21940 7 57 , , PUNCT wh246q21940 7 58 owing owe VERB wh246q21940 7 59 to to ADP wh246q21940 7 60 either either CCONJ wh246q21940 7 61 a a DET wh246q21940 7 62 tcr tcr NOUN wh246q21940 7 63 focus focus NOUN wh246q21940 7 64 on on ADP wh246q21940 7 65 the the DET wh246q21940 7 66 exposed expose VERB wh246q21940 7 67 polymorphic polymorphic ADJ wh246q21940 7 68 residues residue NOUN wh246q21940 7 69 on on ADP wh246q21940 7 70 the the DET wh246q21940 7 71 non non NOUN wh246q21940 7 72 - - NOUN wh246q21940 7 73 self self NOUN wh246q21940 7 74 mhc mhc NOUN wh246q21940 7 75 ( ( PUNCT wh246q21940 7 76 mhc mhc PROPN wh246q21940 7 77 - - PUNCT wh246q21940 7 78 centric centric NOUN wh246q21940 7 79 ) ) PUNCT wh246q21940 7 80 or or CCONJ wh246q21940 7 81 the the DET wh246q21940 7 82 degenerate degenerate ADJ wh246q21940 7 83 recognition recognition NOUN wh246q21940 7 84 of of ADP wh246q21940 7 85 allopeptides allopeptide NOUN wh246q21940 7 86 ( ( PUNCT wh246q21940 7 87 peptide peptide NOUN wh246q21940 7 88 - - PUNCT wh246q21940 7 89 centric centric NOUN wh246q21940 7 90 ) ) PUNCT wh246q21940 8 1 [ [ X wh246q21940 8 2 2 2 NUM wh246q21940 8 3 ] ] PUNCT wh246q21940 8 4 . . PUNCT wh246q21940 9 1 for for ADP wh246q21940 9 2 instance instance NOUN wh246q21940 9 3 , , PUNCT wh246q21940 9 4 the the DET wh246q21940 9 5 precursor precursor NOUN wh246q21940 9 6 frequency frequency NOUN wh246q21940 9 7 for for ADP wh246q21940 9 8 alloreactive alloreactive ADJ wh246q21940 9 9 t t NOUN wh246q21940 9 10 cells cell NOUN wh246q21940 9 11 is be AUX wh246q21940 9 12 100 100 NUM wh246q21940 9 13 - - ADJ wh246q21940 9 14 fold fold NOUN wh246q21940 9 15 to to ADP wh246q21940 9 16 1000 1000 NUM wh246q21940 9 17 - - ADJ wh246q21940 9 18 fold fold VERB wh246q21940 9 19 higher high ADJ wh246q21940 9 20 than than ADP wh246q21940 9 21 that that PRON wh246q21940 9 22 of of ADP wh246q21940 9 23 convention convention NOUN wh246q21940 9 24 t t NOUN wh246q21940 9 25 cells cell NOUN wh246q21940 9 26 that that PRON wh246q21940 9 27 are be AUX wh246q21940 9 28 specific specific ADJ wh246q21940 9 29 for for ADP wh246q21940 9 30 one one NUM wh246q21940 9 31 foreign foreign ADJ wh246q21940 9 32 - - PUNCT wh246q21940 9 33 peptide peptide NOUN wh246q21940 9 34 - - PUNCT wh246q21940 9 35 self self NOUN wh246q21940 9 36 mhc mhc NOUN wh246q21940 9 37 complex complex NOUN wh246q21940 10 1 [ [ X wh246q21940 10 2 3 3 NUM wh246q21940 10 3 ] ] PUNCT wh246q21940 10 4 . . PUNCT wh246q21940 11 1 the the DET wh246q21940 11 2 large large ADJ wh246q21940 11 3 difference difference NOUN wh246q21940 11 4 in in ADP wh246q21940 11 5 precursor precursor PROPN wh246q21940 11 6 frequency frequency PROPN wh246q21940 11 7 suggested suggest VERB wh246q21940 11 8 nonspecific nonspecific ADJ wh246q21940 11 9 allorecognition allorecognition NOUN wh246q21940 11 10 . . PUNCT wh246q21940 12 1 surprisingly surprisingly ADV wh246q21940 12 2 however however ADV wh246q21940 12 3 , , PUNCT wh246q21940 12 4 alloreactive alloreactive ADJ wh246q21940 12 5 t t PROPN wh246q21940 12 6 cells cell NOUN wh246q21940 12 7 can can AUX wh246q21940 12 8 achieve achieve VERB wh246q21940 12 9 high high ADJ wh246q21940 12 10 peptide peptide NOUN wh246q21940 12 11 and and CCONJ wh246q21940 12 12 mhc mhc ADJ wh246q21940 12 13 specificity specificity NOUN wh246q21940 12 14 [ [ X wh246q21940 12 15 4 4 NUM wh246q21940 12 16 ] ] PUNCT wh246q21940 12 17 . . PUNCT wh246q21940 13 1 although although SCONJ wh246q21940 13 2 the the DET wh246q21940 13 3 underlying underlying ADJ wh246q21940 13 4 molecular molecular ADJ wh246q21940 13 5 mechanisms mechanism NOUN wh246q21940 13 6 remain remain VERB wh246q21940 13 7 elusive elusive ADJ wh246q21940 13 8 , , PUNCT wh246q21940 13 9 people people NOUN wh246q21940 13 10 are be AUX wh246q21940 13 11 interested interested ADJ wh246q21940 13 12 in in ADP wh246q21940 13 13 the the DET wh246q21940 13 14 use use NOUN wh246q21940 13 15 of of ADP wh246q21940 13 16 such such ADJ wh246q21940 13 17 highly highly ADV wh246q21940 13 18 specific specific ADJ wh246q21940 13 19 alloreactive alloreactive ADJ wh246q21940 13 20 tcrs tcrs NOUN wh246q21940 13 21 in in ADP wh246q21940 13 22 cancer cancer NOUN wh246q21940 13 23 immunotherapy immunotherapy NOUN wh246q21940 13 24 . . PUNCT wh246q21940 14 1 in in ADP wh246q21940 14 2 this this DET wh246q21940 14 3 dissertation dissertation NOUN wh246q21940 14 4 , , PUNCT wh246q21940 14 5 we we PRON wh246q21940 14 6 mainly mainly ADV wh246q21940 14 7 discuss discuss VERB wh246q21940 14 8 how how SCONJ wh246q21940 14 9 an an DET wh246q21940 14 10 alloreactive alloreactive ADJ wh246q21940 14 11 tcr tcr PROPN wh246q21940 14 12 achieves achieve VERB wh246q21940 14 13 both both PRON wh246q21940 14 14 peptide peptide NOUN wh246q21940 14 15 and and CCONJ wh246q21940 14 16 mhc mhc ADJ wh246q21940 14 17 specificity specificity NOUN wh246q21940 14 18 . . PUNCT wh246q21940 15 1 in in ADP wh246q21940 15 2 contrast contrast NOUN wh246q21940 15 3 with with ADP wh246q21940 15 4 current current ADJ wh246q21940 15 5 theories theory NOUN wh246q21940 15 6 of of ADP wh246q21940 15 7 alloreactivity alloreactivity NOUN wh246q21940 15 8 ( ( PUNCT wh246q21940 15 9 mhc mhc NOUN wh246q21940 15 10 - - PUNCT wh246q21940 15 11 centric centric ADJ wh246q21940 15 12 or or CCONJ wh246q21940 15 13 peptide peptide NOUN wh246q21940 15 14 - - PUNCT wh246q21940 15 15 centric centric NOUN wh246q21940 15 16 ) ) PUNCT wh246q21940 15 17 , , PUNCT wh246q21940 15 18 our our PRON wh246q21940 15 19 structural structural ADJ wh246q21940 15 20 and and CCONJ wh246q21940 15 21 biophysical biophysical ADJ wh246q21940 15 22 data datum NOUN wh246q21940 15 23 suggests suggest VERB wh246q21940 15 24 that that SCONJ wh246q21940 15 25 high high ADJ wh246q21940 15 26 specific specific ADJ wh246q21940 15 27 allorecognition allorecognition NOUN wh246q21940 15 28 is be AUX wh246q21940 15 29 critically critically ADV wh246q21940 15 30 depend depend VERB wh246q21940 15 31 on on ADP wh246q21940 15 32 the the DET wh246q21940 15 33 unique unique ADJ wh246q21940 15 34 features feature NOUN wh246q21940 15 35 of of ADP wh246q21940 15 36 allogeneic allogeneic ADJ wh246q21940 15 37 mhc mhc NOUN wh246q21940 15 38 and and CCONJ wh246q21940 15 39 the the DET wh246q21940 15 40 antigen antigen NOUN wh246q21940 15 41 peptide peptide NOUN wh246q21940 15 42 , , PUNCT wh246q21940 15 43 relatively relatively ADV wh246q21940 15 44 . . PUNCT wh246q21940 16 1 more more ADV wh246q21940 16 2 importantly importantly ADV wh246q21940 16 3 , , PUNCT wh246q21940 16 4 our our PRON wh246q21940 16 5 findings finding NOUN wh246q21940 16 6 emphasize emphasize VERB wh246q21940 16 7 that that SCONJ wh246q21940 16 8 the the DET wh246q21940 16 9 peptide peptide NOUN wh246q21940 16 10 features feature VERB wh246q21940 16 11 working work VERB wh246q21940 16 12 together together ADV wh246q21940 16 13 with with ADP wh246q21940 16 14 the the DET wh246q21940 16 15 distinctive distinctive ADJ wh246q21940 16 16 surface surface NOUN wh246q21940 16 17 chemistry chemistry NOUN wh246q21940 16 18 of of ADP wh246q21940 16 19 allogeneic allogeneic PROPN wh246q21940 16 20 mhc mhc PROPN wh246q21940 16 21 , , PUNCT wh246q21940 16 22 can can AUX wh246q21940 16 23 direct direct VERB wh246q21940 16 24 the the DET wh246q21940 16 25 specificity specificity NOUN wh246q21940 16 26 of of ADP wh246q21940 16 27 allorecognition allorecognition NOUN wh246q21940 16 28 . . PUNCT wh246q21940 17 1 our our PRON wh246q21940 17 2 results result NOUN wh246q21940 17 3 broaden broaden VERB wh246q21940 17 4 the the DET wh246q21940 17 5 understanding understanding NOUN wh246q21940 17 6 of of ADP wh246q21940 17 7 the the DET wh246q21940 17 8 specificity specificity NOUN wh246q21940 17 9 of of ADP wh246q21940 17 10 allorecognition allorecognition NOUN wh246q21940 17 11 and and CCONJ wh246q21940 17 12 provide provide VERB wh246q21940 17 13 insight insight NOUN wh246q21940 17 14 into into ADP wh246q21940 17 15 the the DET wh246q21940 17 16 use use NOUN wh246q21940 17 17 of of ADP wh246q21940 17 18 allospecific allospecific ADJ wh246q21940 17 19 tcrs tcrs NOUN wh246q21940 17 20 in in ADP wh246q21940 17 21 immunotherapy immunotherapy NOUN wh246q21940 17 22 . . PUNCT