Wenzhou narna-like virus 3
Average proteome isoelectric point is 7.12
Get precalculated fractions of proteins
Acidic
pI < 6.8
6.8-7.4
pI > 7.4
Basic
All
Note: above files contain also dissociation constants (pKa)
Virtual 2D-PAGE plot for 1 proteins (isoelectric point calculated using IPC2_protein)
Get csv file with sequences according to given criteria:
* You can choose from 21 different methods for calculating isoelectric point
Summary statistics related to proteome-wise predictions
Protein with the lowest isoelectric point:
>tr|A0A1L3KII1|A0A1L3KII1_9VIRU RNA-dependent RNA polymerase OS=Wenzhou narna-like virus 3 OX=1923578 PE=4 SV=1
MM1 pKa = 7.73 LSTLRR6 pKa = 11.84 SSCAGTDD13 pKa = 3.42 PAFLGRR19 pKa = 11.84 DD20 pKa = 3.64 YY21 pKa = 11.49 AHH23 pKa = 7.37 EE24 pKa = 4.17 EE25 pKa = 3.92 QEE27 pKa = 4.6 PYY29 pKa = 10.68 GPPPSQGSDD38 pKa = 3.45 DD39 pKa = 4.46 DD40 pKa = 5.56 DD41 pKa = 4.19 EE42 pKa = 5.15 PEE44 pKa = 4.38 PVGPPDD50 pKa = 3.37 GRR52 pKa = 11.84 RR53 pKa = 11.84 SQIEE57 pKa = 4.04 AYY59 pKa = 10.54 LYY61 pKa = 10.69 GLKK64 pKa = 9.87 QAARR68 pKa = 11.84 VEE70 pKa = 4.81 SVWEE74 pKa = 4.2 HH75 pKa = 6.52 IYY77 pKa = 11.18 NLYY80 pKa = 10.18 EE81 pKa = 4.44 MIWSPLTSDD90 pKa = 5.92 DD91 pKa = 3.78 RR92 pKa = 11.84 GLWAYY97 pKa = 11.05 LAMNDD102 pKa = 4.36 QLEE105 pKa = 4.56 SYY107 pKa = 10.35 LKK109 pKa = 11.0 YY110 pKa = 9.53 KK111 pKa = 9.55 TALNLSQTWRR121 pKa = 11.84 QEE123 pKa = 4.03 EE124 pKa = 4.56 LPEE127 pKa = 4.33 EE128 pKa = 4.18 PAFLADD134 pKa = 3.73 IPSCYY139 pKa = 9.87 RR140 pKa = 11.84 PPKK143 pKa = 10.32 YY144 pKa = 10.31 GLSWSTSDD152 pKa = 3.25 QWRR155 pKa = 11.84 SLNRR159 pKa = 11.84 GRR161 pKa = 11.84 EE162 pKa = 3.57 ASTRR166 pKa = 11.84 YY167 pKa = 9.62 QEE169 pKa = 4.1 LAYY172 pKa = 10.54 ALYY175 pKa = 9.97 QGKK178 pKa = 10.2 AGALPMRR185 pKa = 11.84 DD186 pKa = 3.43 EE187 pKa = 4.8 LVDD190 pKa = 3.89 SKK192 pKa = 11.54 VDD194 pKa = 3.51 SVVRR198 pKa = 11.84 KK199 pKa = 8.35 LTTPVRR205 pKa = 11.84 TPTQMVMGRR214 pKa = 11.84 KK215 pKa = 9.07 VGLRR219 pKa = 11.84 QMRR222 pKa = 11.84 AEE224 pKa = 4.08 VTRR227 pKa = 11.84 TVRR230 pKa = 11.84 EE231 pKa = 4.13 VYY233 pKa = 10.19 GPPRR237 pKa = 11.84 EE238 pKa = 4.29 EE239 pKa = 3.87 EE240 pKa = 4.23 RR241 pKa = 11.84 EE242 pKa = 4.16 TPGAMRR248 pKa = 11.84 LASVKK253 pKa = 10.53 SAFQSSRR260 pKa = 11.84 GEE262 pKa = 4.14 GGAHH266 pKa = 5.84 QFVCQDD272 pKa = 3.82 AAWDD276 pKa = 3.76 MALGFPQLVGFTRR289 pKa = 11.84 GCDD292 pKa = 3.28 PRR294 pKa = 11.84 PIYY297 pKa = 9.19 GTSAEE302 pKa = 4.15 DD303 pKa = 3.35 WIEE306 pKa = 3.88 TVEE309 pKa = 4.03 VSRR312 pKa = 11.84 RR313 pKa = 11.84 SSWNEE318 pKa = 3.11 TMACYY323 pKa = 9.38 PVGLVEE329 pKa = 4.06 PFKK332 pKa = 11.27 VRR334 pKa = 11.84 VITRR338 pKa = 11.84 GAAHH342 pKa = 7.39 HH343 pKa = 5.53 YY344 pKa = 9.28 HH345 pKa = 7.52 LSRR348 pKa = 11.84 RR349 pKa = 11.84 WQKK352 pKa = 10.67 SLWRR356 pKa = 11.84 PLAEE360 pKa = 4.44 HH361 pKa = 6.77 PTFQLVGRR369 pKa = 11.84 SMSHH373 pKa = 7.58 KK374 pKa = 10.61 IMDD377 pKa = 4.58 DD378 pKa = 3.29 MVTKK382 pKa = 10.68 AGTDD386 pKa = 3.24 QRR388 pKa = 11.84 VWMSGDD394 pKa = 3.36 YY395 pKa = 10.06 QAATDD400 pKa = 3.94 NFDD403 pKa = 4.24 PEE405 pKa = 4.58 LSNHH409 pKa = 6.15 CLAEE413 pKa = 4.19 VCRR416 pKa = 11.84 SLGVPYY422 pKa = 10.2 EE423 pKa = 4.0 DD424 pKa = 3.71 QRR426 pKa = 11.84 ILRR429 pKa = 11.84 EE430 pKa = 4.05 SLTGHH435 pKa = 6.41 EE436 pKa = 5.52 FYY438 pKa = 11.17 DD439 pKa = 4.4 PDD441 pKa = 3.94 TKK443 pKa = 11.13 EE444 pKa = 3.7 HH445 pKa = 6.99 LGRR448 pKa = 11.84 QARR451 pKa = 11.84 GQLMGSPVSFPILCLLNAALTRR473 pKa = 11.84 LAFEE477 pKa = 3.93 VAGRR481 pKa = 11.84 EE482 pKa = 3.93 RR483 pKa = 11.84 APLRR487 pKa = 11.84 DD488 pKa = 3.36 QAILINGDD496 pKa = 3.78 DD497 pKa = 4.26 LLCRR501 pKa = 11.84 VYY503 pKa = 10.56 PRR505 pKa = 11.84 EE506 pKa = 3.87 YY507 pKa = 10.29 KK508 pKa = 9.41 AWKK511 pKa = 9.84 IVTQAGGLTPSLGKK525 pKa = 10.2 CFRR528 pKa = 11.84 HH529 pKa = 5.76 RR530 pKa = 11.84 HH531 pKa = 4.56 IATINSEE538 pKa = 3.71 MWRR541 pKa = 11.84 VSRR544 pKa = 11.84 RR545 pKa = 11.84 SEE547 pKa = 3.75 ILPDD551 pKa = 3.12 ITEE554 pKa = 4.52 DD555 pKa = 4.07 SEE557 pKa = 5.33 APTARR562 pKa = 11.84 FNYY565 pKa = 6.77 YY566 pKa = 8.37 HH567 pKa = 7.21 CEE569 pKa = 3.84 RR570 pKa = 11.84 ARR572 pKa = 11.84 LPLEE576 pKa = 3.73 GLAYY580 pKa = 10.4 GSIKK584 pKa = 10.06 GASGTTDD591 pKa = 2.84 KK592 pKa = 11.16 ARR594 pKa = 11.84 RR595 pKa = 11.84 IEE597 pKa = 4.09 GLSIFSPQNVRR608 pKa = 11.84 ALSSMGKK615 pKa = 9.43 CWEE618 pKa = 4.47 EE619 pKa = 3.7 YY620 pKa = 11.18 LNTLPSFVDD629 pKa = 2.88 QGSPLRR635 pKa = 11.84 RR636 pKa = 11.84 RR637 pKa = 11.84 TAVRR641 pKa = 11.84 RR642 pKa = 11.84 YY643 pKa = 9.42 RR644 pKa = 11.84 RR645 pKa = 11.84 VAYY648 pKa = 10.29 DD649 pKa = 3.52 HH650 pKa = 6.64 LWKK653 pKa = 10.86 VNYY656 pKa = 9.86 DD657 pKa = 3.71 RR658 pKa = 11.84 LTLDD662 pKa = 4.04 LPNIAWCLPLRR673 pKa = 11.84 YY674 pKa = 9.75 GGVGLPLPPRR684 pKa = 11.84 DD685 pKa = 3.06 SPMYY689 pKa = 9.68 HH690 pKa = 6.57 RR691 pKa = 11.84 RR692 pKa = 11.84 LARR695 pKa = 11.84 PQQLGMAHH703 pKa = 7.58 LLAALPNEE711 pKa = 4.27 RR712 pKa = 11.84 ARR714 pKa = 11.84 LHH716 pKa = 5.67 SVLRR720 pKa = 11.84 EE721 pKa = 3.75 TRR723 pKa = 11.84 PTYY726 pKa = 9.28 SEE728 pKa = 4.44 RR729 pKa = 11.84 MTTSGRR735 pKa = 11.84 RR736 pKa = 11.84 YY737 pKa = 10.03 VKK739 pKa = 10.82 VPGLDD744 pKa = 3.47 DD745 pKa = 3.51 QEE747 pKa = 5.34 ASIEE751 pKa = 4.2 AQSRR755 pKa = 11.84 TLGINLTYY763 pKa = 10.66 DD764 pKa = 3.41 LRR766 pKa = 11.84 RR767 pKa = 11.84 GVRR770 pKa = 11.84 EE771 pKa = 3.58 VRR773 pKa = 11.84 ARR775 pKa = 11.84 SAFWALTGSEE785 pKa = 5.22 PIPGADD791 pKa = 2.97 GDD793 pKa = 4.4 SFKK796 pKa = 11.31 KK797 pKa = 8.97 EE798 pKa = 3.36 WNRR801 pKa = 11.84 IYY803 pKa = 10.64 RR804 pKa = 11.84 RR805 pKa = 11.84 AGTFRR810 pKa = 11.84 AGVPRR815 pKa = 11.84 WEE817 pKa = 5.08 PIRR820 pKa = 11.84 DD821 pKa = 3.38 IARR824 pKa = 11.84 LARR827 pKa = 11.84 LEE829 pKa = 4.01 HH830 pKa = 6.75 RR831 pKa = 11.84 DD832 pKa = 3.95 YY833 pKa = 11.92 LEE835 pKa = 3.82 VAYY838 pKa = 9.92 DD839 pKa = 3.93 LPTPVSGAPSGDD851 pKa = 3.01 TGNGHH856 pKa = 6.34 EE857 pKa = 5.01 EE858 pKa = 3.91 DD859 pKa = 4.04 LALEE863 pKa = 4.46 GVWWSGWW870 pKa = 3.23
Molecular weight: 98.93 kDa
Isoelectric point according different methods:
IPC2.protein.svr19 7.119
IPC2_protein 7.497
IPC_protein 7.351
Toseland 7.073
ProMoST 7.892
Dawson 8.009
Bjellqvist 8.39
Wikipedia 7.936
Rodwell 8.024
Grimsley 7.161
Solomon 8.053
Lehninger 8.068
Nozaki 8.492
DTASelect 8.141
Thurlkill 8.185
EMBOSS 8.229
Sillero 8.492
Patrickios 4.355
IPC_peptide 8.053
IPC2_peptide 7.585
IPC2.peptide.svr19 7.495
Protein with the highest isoelectric point:
>tr|A0A1L3KII1|A0A1L3KII1_9VIRU RNA-dependent RNA polymerase OS=Wenzhou narna-like virus 3 OX=1923578 PE=4 SV=1
MM1 pKa = 7.73 LSTLRR6 pKa = 11.84 SSCAGTDD13 pKa = 3.42 PAFLGRR19 pKa = 11.84 DD20 pKa = 3.64 YY21 pKa = 11.49 AHH23 pKa = 7.37 EE24 pKa = 4.17 EE25 pKa = 3.92 QEE27 pKa = 4.6 PYY29 pKa = 10.68 GPPPSQGSDD38 pKa = 3.45 DD39 pKa = 4.46 DD40 pKa = 5.56 DD41 pKa = 4.19 EE42 pKa = 5.15 PEE44 pKa = 4.38 PVGPPDD50 pKa = 3.37 GRR52 pKa = 11.84 RR53 pKa = 11.84 SQIEE57 pKa = 4.04 AYY59 pKa = 10.54 LYY61 pKa = 10.69 GLKK64 pKa = 9.87 QAARR68 pKa = 11.84 VEE70 pKa = 4.81 SVWEE74 pKa = 4.2 HH75 pKa = 6.52 IYY77 pKa = 11.18 NLYY80 pKa = 10.18 EE81 pKa = 4.44 MIWSPLTSDD90 pKa = 5.92 DD91 pKa = 3.78 RR92 pKa = 11.84 GLWAYY97 pKa = 11.05 LAMNDD102 pKa = 4.36 QLEE105 pKa = 4.56 SYY107 pKa = 10.35 LKK109 pKa = 11.0 YY110 pKa = 9.53 KK111 pKa = 9.55 TALNLSQTWRR121 pKa = 11.84 QEE123 pKa = 4.03 EE124 pKa = 4.56 LPEE127 pKa = 4.33 EE128 pKa = 4.18 PAFLADD134 pKa = 3.73 IPSCYY139 pKa = 9.87 RR140 pKa = 11.84 PPKK143 pKa = 10.32 YY144 pKa = 10.31 GLSWSTSDD152 pKa = 3.25 QWRR155 pKa = 11.84 SLNRR159 pKa = 11.84 GRR161 pKa = 11.84 EE162 pKa = 3.57 ASTRR166 pKa = 11.84 YY167 pKa = 9.62 QEE169 pKa = 4.1 LAYY172 pKa = 10.54 ALYY175 pKa = 9.97 QGKK178 pKa = 10.2 AGALPMRR185 pKa = 11.84 DD186 pKa = 3.43 EE187 pKa = 4.8 LVDD190 pKa = 3.89 SKK192 pKa = 11.54 VDD194 pKa = 3.51 SVVRR198 pKa = 11.84 KK199 pKa = 8.35 LTTPVRR205 pKa = 11.84 TPTQMVMGRR214 pKa = 11.84 KK215 pKa = 9.07 VGLRR219 pKa = 11.84 QMRR222 pKa = 11.84 AEE224 pKa = 4.08 VTRR227 pKa = 11.84 TVRR230 pKa = 11.84 EE231 pKa = 4.13 VYY233 pKa = 10.19 GPPRR237 pKa = 11.84 EE238 pKa = 4.29 EE239 pKa = 3.87 EE240 pKa = 4.23 RR241 pKa = 11.84 EE242 pKa = 4.16 TPGAMRR248 pKa = 11.84 LASVKK253 pKa = 10.53 SAFQSSRR260 pKa = 11.84 GEE262 pKa = 4.14 GGAHH266 pKa = 5.84 QFVCQDD272 pKa = 3.82 AAWDD276 pKa = 3.76 MALGFPQLVGFTRR289 pKa = 11.84 GCDD292 pKa = 3.28 PRR294 pKa = 11.84 PIYY297 pKa = 9.19 GTSAEE302 pKa = 4.15 DD303 pKa = 3.35 WIEE306 pKa = 3.88 TVEE309 pKa = 4.03 VSRR312 pKa = 11.84 RR313 pKa = 11.84 SSWNEE318 pKa = 3.11 TMACYY323 pKa = 9.38 PVGLVEE329 pKa = 4.06 PFKK332 pKa = 11.27 VRR334 pKa = 11.84 VITRR338 pKa = 11.84 GAAHH342 pKa = 7.39 HH343 pKa = 5.53 YY344 pKa = 9.28 HH345 pKa = 7.52 LSRR348 pKa = 11.84 RR349 pKa = 11.84 WQKK352 pKa = 10.67 SLWRR356 pKa = 11.84 PLAEE360 pKa = 4.44 HH361 pKa = 6.77 PTFQLVGRR369 pKa = 11.84 SMSHH373 pKa = 7.58 KK374 pKa = 10.61 IMDD377 pKa = 4.58 DD378 pKa = 3.29 MVTKK382 pKa = 10.68 AGTDD386 pKa = 3.24 QRR388 pKa = 11.84 VWMSGDD394 pKa = 3.36 YY395 pKa = 10.06 QAATDD400 pKa = 3.94 NFDD403 pKa = 4.24 PEE405 pKa = 4.58 LSNHH409 pKa = 6.15 CLAEE413 pKa = 4.19 VCRR416 pKa = 11.84 SLGVPYY422 pKa = 10.2 EE423 pKa = 4.0 DD424 pKa = 3.71 QRR426 pKa = 11.84 ILRR429 pKa = 11.84 EE430 pKa = 4.05 SLTGHH435 pKa = 6.41 EE436 pKa = 5.52 FYY438 pKa = 11.17 DD439 pKa = 4.4 PDD441 pKa = 3.94 TKK443 pKa = 11.13 EE444 pKa = 3.7 HH445 pKa = 6.99 LGRR448 pKa = 11.84 QARR451 pKa = 11.84 GQLMGSPVSFPILCLLNAALTRR473 pKa = 11.84 LAFEE477 pKa = 3.93 VAGRR481 pKa = 11.84 EE482 pKa = 3.93 RR483 pKa = 11.84 APLRR487 pKa = 11.84 DD488 pKa = 3.36 QAILINGDD496 pKa = 3.78 DD497 pKa = 4.26 LLCRR501 pKa = 11.84 VYY503 pKa = 10.56 PRR505 pKa = 11.84 EE506 pKa = 3.87 YY507 pKa = 10.29 KK508 pKa = 9.41 AWKK511 pKa = 9.84 IVTQAGGLTPSLGKK525 pKa = 10.2 CFRR528 pKa = 11.84 HH529 pKa = 5.76 RR530 pKa = 11.84 HH531 pKa = 4.56 IATINSEE538 pKa = 3.71 MWRR541 pKa = 11.84 VSRR544 pKa = 11.84 RR545 pKa = 11.84 SEE547 pKa = 3.75 ILPDD551 pKa = 3.12 ITEE554 pKa = 4.52 DD555 pKa = 4.07 SEE557 pKa = 5.33 APTARR562 pKa = 11.84 FNYY565 pKa = 6.77 YY566 pKa = 8.37 HH567 pKa = 7.21 CEE569 pKa = 3.84 RR570 pKa = 11.84 ARR572 pKa = 11.84 LPLEE576 pKa = 3.73 GLAYY580 pKa = 10.4 GSIKK584 pKa = 10.06 GASGTTDD591 pKa = 2.84 KK592 pKa = 11.16 ARR594 pKa = 11.84 RR595 pKa = 11.84 IEE597 pKa = 4.09 GLSIFSPQNVRR608 pKa = 11.84 ALSSMGKK615 pKa = 9.43 CWEE618 pKa = 4.47 EE619 pKa = 3.7 YY620 pKa = 11.18 LNTLPSFVDD629 pKa = 2.88 QGSPLRR635 pKa = 11.84 RR636 pKa = 11.84 RR637 pKa = 11.84 TAVRR641 pKa = 11.84 RR642 pKa = 11.84 YY643 pKa = 9.42 RR644 pKa = 11.84 RR645 pKa = 11.84 VAYY648 pKa = 10.29 DD649 pKa = 3.52 HH650 pKa = 6.64 LWKK653 pKa = 10.86 VNYY656 pKa = 9.86 DD657 pKa = 3.71 RR658 pKa = 11.84 LTLDD662 pKa = 4.04 LPNIAWCLPLRR673 pKa = 11.84 YY674 pKa = 9.75 GGVGLPLPPRR684 pKa = 11.84 DD685 pKa = 3.06 SPMYY689 pKa = 9.68 HH690 pKa = 6.57 RR691 pKa = 11.84 RR692 pKa = 11.84 LARR695 pKa = 11.84 PQQLGMAHH703 pKa = 7.58 LLAALPNEE711 pKa = 4.27 RR712 pKa = 11.84 ARR714 pKa = 11.84 LHH716 pKa = 5.67 SVLRR720 pKa = 11.84 EE721 pKa = 3.75 TRR723 pKa = 11.84 PTYY726 pKa = 9.28 SEE728 pKa = 4.44 RR729 pKa = 11.84 MTTSGRR735 pKa = 11.84 RR736 pKa = 11.84 YY737 pKa = 10.03 VKK739 pKa = 10.82 VPGLDD744 pKa = 3.47 DD745 pKa = 3.51 QEE747 pKa = 5.34 ASIEE751 pKa = 4.2 AQSRR755 pKa = 11.84 TLGINLTYY763 pKa = 10.66 DD764 pKa = 3.41 LRR766 pKa = 11.84 RR767 pKa = 11.84 GVRR770 pKa = 11.84 EE771 pKa = 3.58 VRR773 pKa = 11.84 ARR775 pKa = 11.84 SAFWALTGSEE785 pKa = 5.22 PIPGADD791 pKa = 2.97 GDD793 pKa = 4.4 SFKK796 pKa = 11.31 KK797 pKa = 8.97 EE798 pKa = 3.36 WNRR801 pKa = 11.84 IYY803 pKa = 10.64 RR804 pKa = 11.84 RR805 pKa = 11.84 AGTFRR810 pKa = 11.84 AGVPRR815 pKa = 11.84 WEE817 pKa = 5.08 PIRR820 pKa = 11.84 DD821 pKa = 3.38 IARR824 pKa = 11.84 LARR827 pKa = 11.84 LEE829 pKa = 4.01 HH830 pKa = 6.75 RR831 pKa = 11.84 DD832 pKa = 3.95 YY833 pKa = 11.92 LEE835 pKa = 3.82 VAYY838 pKa = 9.92 DD839 pKa = 3.93 LPTPVSGAPSGDD851 pKa = 3.01 TGNGHH856 pKa = 6.34 EE857 pKa = 5.01 EE858 pKa = 3.91 DD859 pKa = 4.04 LALEE863 pKa = 4.46 GVWWSGWW870 pKa = 3.23
Molecular weight: 98.93 kDa
Isoelectric point according different methods:
IPC2.protein.svr19 7.119
IPC2_protein 7.497
IPC_protein 7.351
Toseland 7.073
ProMoST 7.892
Dawson 8.009
Bjellqvist 8.39
Wikipedia 7.936
Rodwell 8.024
Grimsley 7.161
Solomon 8.053
Lehninger 8.068
Nozaki 8.492
DTASelect 8.141
Thurlkill 8.185
EMBOSS 8.229
Sillero 8.492
Patrickios 4.355
IPC_peptide 8.053
IPC2_peptide 7.585
IPC2.peptide.svr19 7.495
Peptides (in silico digests for buttom-up proteomics)
Below you can find
in silico digests of the whole proteome with Trypsin, Chymotrypsin, Trypsin+LysC, LysN, ArgC proteases suitable for different mass spec machines.
Try ESI
ChTry ESI
ArgC ESI
LysN ESI
TryLysC ESI
Try MALDI
ChTry MALDI
ArgC MALDI
LysN MALDI
TryLysC MALDI
Try LTQ
ChTry LTQ
ArgC LTQ
LysN LTQ
TryLysC LTQ
Try MSlow
ChTry MSlow
ArgC MSlow
LysN MSlow
TryLysC MSlow
Try MShigh
ChTry MShigh
ArgC MShigh
LysN MShigh
TryLysC MShigh
General Statistics
Number of major isoforms
Number of additional isoforms
Number of all proteins
Number of amino acids
Min. Seq. Length
Max. Seq. Length
Avg. Seq. Length
Avg. Mol. Weight
1
0
1
870
870
870
870.0
98.93
Amino acid frequency
Ala
Cys
Asp
Glu
Phe
Gly
His
Ile
Lys
Leu
8.161 ± 0.0
1.494 ± 0.0
5.632 ± 0.0
7.126 ± 0.0
2.184 ± 0.0
7.356 ± 0.0
2.299 ± 0.0
3.103 ± 0.0
2.759 ± 0.0
9.655 ± 0.0
Met
Asn
Gln
Pro
Arg
Ser
Thr
Val
Trp
Tyr
2.299 ± 0.0
2.184 ± 0.0
6.782 ± 0.0
3.563 ± 0.0
10.575 ± 0.0
7.126 ± 0.0
5.287 ± 0.0
5.402 ± 0.0
2.644 ± 0.0
4.368 ± 0.0
Note: For amino acid frequency statistics the error has been estimated with the bootstraping (x100) at the protein level
Most of the basic statistics you can see at this page can be downloaded from this CSV file
For dipeptide frequency statistics click here