Methods and compositions for modulating PD1

1. A method of activating PD1 expression in a human subject having an autoimmune disease or disorder, the method comprising

activating expression of the PD1 gene in an isolated T cell by administering a polynucleotide encoding a fusion protein comprising a zinc finger protein and a transcriptional activation domain to the cell, wherein the zinc finger protein comprises comprising four, five or six zinc finger recognition regions ordered from F1 to F4, F1 to F5 or F1 to F6, from N-terminus to C-terminus, and wherein the recognition regions comprise the following amino acid sequences:

(i) F1: QSGHLSR (SEQ ID NO: 1), F2: RSDSLSV (SEQ ID NO: 2), F3: HNDSRKN (SEQ ID NO: 3), F4: RSDDLTR (SEQ ID NO: 4), and F5: RSDHLTQ (SEQ ID NO: 5);

(ii) F1: RSAALSR (SEQ ID NO: 6), F2: RSDDLTR (SEQ ID NO: 4), F3: RSDHLTT (SEQ ID NO: 7), F4: DRSALSR (SEQ ID NO: 8), and F5: DRSALAR (SEQ ID NO: 9);

(iii) F1: RSAALAR (SEQ ID NO: 10), F2: RSDDLSK (SEQ ID NO: 11), F3: RNDHRKN (SEQ ID NO: 12), F4: DRSALSR (SEQ ID NO: 8), and F5: DRSALAR (SEQ ID NO: 9);

(iv) F1: RSDHLSE (SEQ ID NO: 13), F2: TSSDRTK (SEQ ID NO: 14), F3: RSDHLSE (SEQ ID NO: 13), and F4: QSASRKN (SEQ ID NO: 15);

(v) F1: RSDVLSE (SEQ ID NO: 16), F2: RSANLTR (SEQ ID NO: 17), F3: RSDHLSQ (SEQ ID NO: 18), F4: TSSNRKT (SEQ ID NO: 19), F5: DRSNLSR (SEQ ID NO: 20), and F6: RSDALAR (SEQ ID NO: 21); or

(vi) F1: DDWNLSQ (SEQ ID NO: 22), F2: RSANLTR (SEQ ID NO: 17), F3: RSDHLSQ (SEQ ID NO: 18), F4: TSSNRKT (SEQ ID NO: 19), F5: DRSNLSR (SEQ ID NO: 20), and F6: RSDALAR (SEQ ID NO: 21);

(vii) F1: RSSALSR (SEQ ID NO: 23), F2: RPLALKH (SEQ ID NO: 24), F3: RNDHRKN (SEQ ID NO: 12), F4: TRPVLKR (SEQ ID NO: 25), and F5: DRSALAR (SEQ ID NO: 9);

(viii) F1: QSGHLSR (SEQ ID NO: 1), F2: RSDSLSV (SEQ ID NO: 2), F3: HNDSRKN (SEQ ID NO: 3), F4: RANSLLR (SEQ ID NO: 26), and F5: RSDHLTQ (SEQ ID NO: 5);

(ix) F1: RPSTLHR (SEQ ID NO: 27), F2: RSDELTR (SEQ ID NO: 28), F3: RNNNLRT (SEQ ID NO: 29), F4: TRPVLKR (SEQ ID NO: 25), and F5: DRSALAR (SEQ ID NO: 9);

(x) F1: RPSTLHR (SEQ ID NO: 27), F2: RSDELTR (SEQ ID NO: 28), F3: TNWHLRT (SEQ ID NO: 30), F4: TRPVLKR (SEQ ID NO: 25), and F5: DRSALAR (SEQ ID NO: 9);

(xi) F1: RPSTLHR (SEQ ID NO: 27), F2: RSDELTR (SEQ ID NO: 28), F3: RTPHLTL (SEQ ID NO: 31), F4: TRPVLKR (SEQ ID NO: 25), and F5: DRSALAR (SEQ ID NO: 9);

(xii) F1: RPSTLHR (SEQ ID NO: 27), F2: RSDELTR (SEQ ID NO: 28), F3: RSAQLAT (SEQ ID NO: 32), F4: TRPVLKR (SEQ ID NO: 25), and F5: DRSALAR (SEQ ID NO: 9);

(xiii) F1: RPSTLHR (SEQ ID NO: 27), F2: RSDELTR (SEQ ID NO: 28), F3: RCTHLYL (SEQ ID NO: 33), F4: TRPVLKR (SEQ ID NO: 25), and F5: DRSALAR (SEQ ID NO: 9);

(xiv) F1: RPSTLHR (SEQ ID NO: 27), F2: RSDELTR (SEQ ID NO: 28), F3: RPTQRYS (SEQ ID NO: 34), F4: TRPVLKR (SEQ ID NO: 25), and F5: DRSALAR (SEQ ID NO: 9);

(xiv) F1: RPSTLHR (SEQ ID NO: 27), F2: RSDELTR (SEQ ID NO: 28), F3: RANHREC (SEQ ID NO: 35), F4: TRPVLKR (SEQ ID NO: 25), and F5: DRSALAR (SEQ ID NO: 9);

(xvi) F1: RKFARPS (SEQ ID NO: 36), F2: RNFSRSD (SEQ ID NO: 37), F3: HPHHRMC (SEQ ID NO: 38), F4: TRPVLKR (SEQ ID NO: 25), and F5: DRSALAR (SEQ ID NO: 9);

(xvii) F1: RPSTLHR (SEQ ID NO: 27), F2: RSDELTR (SEQ ID NO: 28), F3: RMGRLST (SEQ ID NO: 39), F4: TRPVLKR (SEQ ID NO: 25), and F5: DRSALAR (SEQ ID NO: 9);

(xviii) F1: RPSTLHR (SEQ ID NO: 27), F2: RSDELTR (SEQ ID NO: 28), F3: RHSRLTT (SEQ ID NO: 40), F4: TRPVLMR (SEQ ID NO: 41), and F5: DRSALAR (SEQ ID NO: 9);

(xix) F1: RPSTLHR (SEQ ID NO: 27), F2: RSDELTR (SEQ ID NO: 28), F3: RANHRVC (SEQ ID NO: 42), F4: TRPVLKR (SEQ ID NO: 25), and F5: DRSALAR (SEQ ID NO: 9);

(xx) F1: RPSTLHR (SEQ ID NO: 27), F2: RSDELTR (SEQ ID NO: 28), F3: RSTHLLG (SEQ ID NO: 43), F4: TRPVLKR (SEQ ID NO: 25), and F5: DRSALAR (SEQ ID NO: 9);

(xxi) F1: RNAALTR (SEQ ID NO: 45), F2: RSDELTR (SEQ ID NO: 28) F3: RSCGLWS (SEQ ID NO: 44), F4: TRPVLKR (SEQ ID NO: 25), and F5: DRSALAR (SEQ ID NO: 9);

(xxii) F1: CNAALTR (SEQ ID NO: 46), F2: RSDELTR (SEQ ID NO: 28), F3: REEHRAT (SEQ ID NO: 47), F4: TRPVLKR (SEQ ID NO: 25), and F5: DRSALAR (SEQ ID NO: 9);

(xxiii) F1: RNAALTR (SEQ ID NO: 45), F2: RSDELTR (SEQ ID NO: 28), F3: RHHHLAA (SEQ ID NO: 48), F4: TRPVLKR (SEQ ID NO: 25), and F5: DRSALAR (SEQ ID NO: 9);

(xxiv) F1: RNAALTR (SEQ ID NO: 45), F2: RSDELTR (SEQ ID NO: 28), F3: RPMHLTN (SEQ ID NO: 49), F4: TRPVLKR (SEQ ID NO: 25), and F5: DRSALAR (SEQ ID NO: 9);

(xxv) F1: RNAALTR (SEQ ID NO: 45), F2: RSDELTR (SEQ ID NO: 28), F3: RSPHLYH (SEQ ID NO: 50), F4: TRPVLKR (SEQ ID NO: 25), and F5: DRSALAR (SEQ ID NO: 9);

(xxvi) F1: RNAALTR (SEQ ID NO: 45), F2: RSDELTR (SEQ ID NO: 28), F3: RCEALHH (SEQ ID NO: 51), F4: TRPVLKR (SEQ ID NO: 25), and F5: DRSAQAR (SEQ ID NO: 52);

(xxvii) F1: RNAALTR (SEQ ID NO: 45), F2: RSDELTR (SEQ ID NO: 28), F3: RCEALHH (SEQ ID NO: 51), F4: TRPVLKR (SEQ ID NO: 25), and F5: DRSALAR (SEQ ID NO: 9);

(xxviii) F1: RNAALTR (SEQ ID NO: 45), F2: RSDELTR (SEQ ID NO: 28), F3: RLPALLS (SEQ ID NO: 53), F4: TRPVLKR (SEQ ID NO: 25), and F5: DRSALAR (SEQ ID NO: 9); and

(xxix) F1: HNAALTR (SEQ ID NO: 54), F2: RSDELTR (SEQ ID NO: 28), F3: RTYNRTQ (SEQ ID NO: 55), F4: TRPVLKR (SEQ ID NO: 25), and F5: DRSALAR (SEQ ID NO: 9) and

administering the T cell to the human subject.

2. The method of claim 1 , wherein the autoimmune disease is Hashimoto's thyroiditis, Systemic lupus erythematosus, Sjogren's syndrome, Graves' disease, Scleroderma, Rheumatoid arthritis, Multiple sclerosis, Myasthenia gravis and/or Diabetes.

3. The method of claim 1 , wherein the cell is a CD4+ T-cell.