HEADSC 1pk4 SEQCRD A D ASP ASP 1 0 T T 0 SEQCRD A C CYS CYS 2 1 T T 0 SEQCRD A Y TYR TYR 3 2 T T 0 SEQCRD A H HIS HIS 4 3 T T 0 SEQCRD A G GLY GLY 5 4 T T 0 SEQCRD A D ASP ASP 6 5 T T 0 SEQCRD A G GLY GLY 7 6 T T 0 SEQCRD A Q GLN GLN 8 7 T T 0 SEQCRD A S SER SER 9 8 T T 0 SEQCRD A Y TYR TYR 10 9 T T 0 SEQCRD A R ARG ARG 11 10 T T 0 SEQCRD A G GLY GLY 12 11 T T 0 SEQCRD A T THR THR 13 12 T T 0 SEQCRD A S SER SER 14 13 T T 0 SEQCRD A S SER SER 15 14 T T 0 SEQCRD A T THR THR 16 15 T T 0 SEQCRD A T THR THR 17 16 T T 0 SEQCRD A T THR THR 18 17 T T 0 SEQCRD A T THR THR 19 18 T T 0 SEQCRD A G GLY GLY 20 19 T T 0 SEQCRD A K LYS LYS 21 20 T T 0 SEQCRD A K LYS LYS 22 21 T T 0 SEQCRD A C CYS CYS 23 22 T T 0 SEQCRD A Q GLN GLN 24 23 T T 0 SEQCRD A S SER SER 25 24 T T 0 SEQCRD A W TRP TRP 26 25 T T 0 SEQCRD A S SER SER 27 26 T T 0 SEQCRD A S SER SER 28 27 T T 0 SEQCRD A M MET MET 29 28 T T 0 SEQCRD A T THR THR 30 29 T T 0 SEQCRD A P PRO PRO 31 30 T T 0 SEQCRD A H HIS HIS 32 31 T T 0 SEQCRD A R ARG ARG 33 32 T T 0 SEQCRD A H HIS HIS 34 33 T T 0 SEQCRD A Q GLN GLN 35 34 T T 0 SEQCRD A K LYS LYS 36 35 T T 0 SEQCRD A T THR THR 37 37 T T 0 SEQCRD A P PRO PRO 38 38 T T 0 SEQCRD A E GLU GLU 39 39 T T 0 SEQCRD A N ASN ASN 40 40 T T 0 SEQCRD A Y TYR TYR 41 41 T T 0 SEQCRD A P PRO PRO 42 42 T T 0 SEQCRD A N ASN ASN 43 43 T T 0 SEQCRD A A ALA ALA 44 44 T T 0 SEQCRD A G GLY GLY 45 45 T T 0 SEQCRD A L LEU LEU 46 46 T T 0 SEQCRD A T THR THR 47 47 T T 0 SEQCRD A M MET MET 48 48 T T 0 SEQCRD A N ASN ASN 49 49 T T 0 SEQCRD A Y TYR TYR 50 50 T T 0 SEQCRD A C CYS CYS 51 51 T T 0 SEQCRD A R ARG ARG 52 52 T T 0 SEQCRD A N ASN ASN 53 53 T T 0 SEQCRD A P PRO PRO 54 54 T T 0 SEQCRD A D ASP ASP 55 55 T T 0 SEQCRD A A ALA ALA 56 56 T T 0 SEQCRD A D ASP ASP 57 57 T T 0 SEQCRD A K LYS LYS 58 58 T T 0 SEQCRD A G GLY GLY 59 60 T T 0 SEQCRD A P PRO PRO 60 61 T T 0 SEQCRD A W TRP TRP 61 62 T T 0 SEQCRD A C CYS CYS 62 63 T T 0 SEQCRD A F PHE PHE 63 64 T T 0 SEQCRD A T THR THR 64 65 T T 0 SEQCRD A T THR THR 65 66 T T 0 SEQCRD A D ASP ASP 66 67 T T 0 SEQCRD A P PRO PRO 67 68 T T 0 SEQCRD A S SER SER 68 69 T T 0 SEQCRD A V VAL VAL 69 70 T T 0 SEQCRD A R ARG ARG 70 71 E E 0 SEQCRD A W TRP TRP 71 72 E E 0 SEQCRD A E GLU GLU 72 73 E E 0 SEQCRD A Y TYR TYR 73 74 E E 0 SEQCRD A C CYS CYS 74 75 E E 0 SEQCRD A N ASN ASN 75 76 C C 0 SEQCRD A L LEU LEU 76 77 C C 0 SEQCRD A K LYS LYS 77 78 C C 0 SEQCRD A K LYS LYS 78 79 C C 0 SEQCRD A C CYS CYS 79 80 C C 0 PARAME method XRAY PARAME resolution 1.9 PARAME R-factor 0.142 PARAME FreeR-factor NA