Drosophila melanogaster birnavirus SW-2009a 
Average proteome isoelectric point is 6.22 
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 3 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|D0U495|D0U495_9VIRU Structural polyprotein OS=Drosophila melanogaster birnavirus SW-2009a OX=663281 PE=4 SV=1MM1 pKa = 7.96  RR2 pKa = 11.84  EE3 pKa = 3.67  RR4 pKa = 11.84  YY5 pKa = 9.55  YY6 pKa = 11.03  EE7 pKa = 4.05  DD8 pKa = 3.7  TEE10 pKa = 4.58  LNNLSYY16 pKa = 10.96  SEE18 pKa = 3.94  QDD20 pKa = 3.13  KK21 pKa = 10.66  QLKK24 pKa = 9.42  QICQTSTLDD33 pKa = 3.21  QSSCLRR39 pKa = 11.84  EE40 pKa = 4.07  VPPVYY45 pKa = 9.42  QTTTSAVIAYY55 pKa = 7.86  DD56 pKa = 3.49  KK57 pKa = 10.78  KK58 pKa = 10.79  QSLRR62 pKa = 11.84  TLWSDD67 pKa = 3.73  LLEE70 pKa = 4.75  KK71 pKa = 11.05  GPLFCSLTILAALLALILSMMTRR94 pKa = 11.84  ANLTNTPNHH103 pKa = 6.2  SLSPNASMSPIITEE117 pKa = 4.01  EE118 pKa = 4.22  SPQEE122 pKa = 4.35  SYY124 pKa = 10.77  TSEE127 pKa = 4.26  VPHH130 pKa = 6.06  SHH132 pKa = 6.12  QEE134 pKa = 3.96  STTSQEE140 pKa = 3.59  QSMPPRR146 pKa = 11.84  MKK148 pKa = 10.53  AHH150 pKa = 7.13  LRR152 pKa = 11.84  RR153 pKa = 3.99  
 17.38 kDa
Isoelectric point according different methods: 
IPC2.protein.svr19  5.524 
IPC2_protein 5.601 
IPC_protein 5.575 
Toseland    5.881 
ProMoST     5.868 
Dawson      5.753 
Bjellqvist  5.792 
Wikipedia   5.728 
Rodwell     5.741 
Grimsley    5.995 
Solomon     5.766 
Lehninger   5.741 
Nozaki      5.995 
DTASelect   6.16 
Thurlkill   6.148 
EMBOSS      6.097 
Sillero     6.097 
Patrickios  3.897 
IPC_peptide 5.779 
IPC2_peptide  6.097 
IPC2.peptide.svr19  6.117 
 Protein with the highest isoelectric point: 
>tr|D0U496|D0U496_9VIRU Protein VP1 OS=Drosophila melanogaster birnavirus SW-2009a OX=663281 PE=4 SV=1MM1 pKa = 7.69  NEE3 pKa = 3.92  TKK5 pKa = 10.42  LVNSTRR11 pKa = 11.84  VLEE14 pKa = 4.07  IAQYY18 pKa = 8.01  IAKK21 pKa = 10.01  RR22 pKa = 11.84  RR23 pKa = 11.84  IHH25 pKa = 6.53  AFKK28 pKa = 10.32  PYY30 pKa = 10.47  YY31 pKa = 10.15  LRR33 pKa = 11.84  QNLEE37 pKa = 4.09  FEE39 pKa = 4.52  ASSVLDD45 pKa = 3.91  EE46 pKa = 4.32  QIVRR50 pKa = 11.84  YY51 pKa = 8.78  LQTIRR56 pKa = 11.84  TLQLEE61 pKa = 4.28  SGNPKK66 pKa = 10.46  DD67 pKa = 5.62  YY68 pKa = 11.22  EE69 pKa = 4.51  DD70 pKa = 3.78  CTKK73 pKa = 10.53  IHH75 pKa = 6.8  LPDD78 pKa = 5.03  GDD80 pKa = 4.17  PKK82 pKa = 10.83  IPFYY86 pKa = 10.78  RR87 pKa = 11.84  PRR89 pKa = 11.84  FTTGTYY95 pKa = 10.44  DD96 pKa = 4.71  DD97 pKa = 4.78  KK98 pKa = 11.44  LLNAIAFQWLASKK111 pKa = 7.7  EE112 pKa = 4.41  TQGNFEE118 pKa = 4.06  TAKK121 pKa = 10.38  GYY123 pKa = 9.83  VVQRR127 pKa = 11.84  DD128 pKa = 4.41  RR129 pKa = 11.84  IADD132 pKa = 3.78  PTDD135 pKa = 2.9  MDD137 pKa = 3.97  TTIKK141 pKa = 10.35  RR142 pKa = 11.84  CRR144 pKa = 11.84  QACIDD149 pKa = 3.69  YY150 pKa = 10.08  RR151 pKa = 11.84  LSSGTWQGQLARR163 pKa = 11.84  LKK165 pKa = 10.62  DD166 pKa = 3.69  MQNIRR171 pKa = 11.84  HH172 pKa = 5.5  GVDD175 pKa = 3.24  GKK177 pKa = 10.52  FLPKK181 pKa = 9.96  SLKK184 pKa = 9.95  EE185 pKa = 3.8  LGYY188 pKa = 10.82  DD189 pKa = 3.54  LEE191 pKa = 4.54  SFSKK195 pKa = 10.42  ILEE198 pKa = 3.92  KK199 pKa = 10.14  TLPINAVDD207 pKa = 4.35  LSQTISLRR215 pKa = 11.84  YY216 pKa = 9.74  LPTLFIEE223 pKa = 4.38  EE224 pKa = 4.46  TEE226 pKa = 4.36  VEE228 pKa = 4.39  VKK230 pKa = 10.33  GVKK233 pKa = 8.41  KK234 pKa = 9.28  TSYY237 pKa = 10.55  IDD239 pKa = 3.31  NTPKK243 pKa = 10.78  LKK245 pKa = 10.01  PDD247 pKa = 3.64  SKK249 pKa = 10.91  AGPPFQSKK257 pKa = 8.22  YY258 pKa = 10.26  RR259 pKa = 11.84  KK260 pKa = 9.66  GDD262 pKa = 3.37  MFSSILALADD272 pKa = 3.82  DD273 pKa = 4.77  ALLGLSEE280 pKa = 4.58  VIHH283 pKa = 6.82  GRR285 pKa = 11.84  MDD287 pKa = 2.96  RR288 pKa = 11.84  HH289 pKa = 6.5  KK290 pKa = 9.81  YY291 pKa = 9.63  FKK293 pKa = 10.77  DD294 pKa = 3.39  RR295 pKa = 11.84  IYY297 pKa = 11.27  LAMCFLFPKK306 pKa = 9.17  EE307 pKa = 3.98  EE308 pKa = 4.09  RR309 pKa = 11.84  YY310 pKa = 9.24  EE311 pKa = 4.0  ASKK314 pKa = 9.56  LTTKK318 pKa = 9.24  TRR320 pKa = 11.84  NIASVCGVTHH330 pKa = 6.31  YY331 pKa = 11.69  LMLHH335 pKa = 5.33  AMEE338 pKa = 4.88  PVMEE342 pKa = 4.18  KK343 pKa = 10.76  SKK345 pKa = 9.61  WNCMSSEE352 pKa = 4.29  TYY354 pKa = 10.42  EE355 pKa = 4.12  NPSLSKK361 pKa = 8.81  FTPYY365 pKa = 10.34  FGNLQKK371 pKa = 10.86  FLDD374 pKa = 4.24  FGLHH378 pKa = 5.52  RR379 pKa = 11.84  EE380 pKa = 4.04  KK381 pKa = 10.93  KK382 pKa = 9.57  KK383 pKa = 11.04  VFMPRR388 pKa = 11.84  GAKK391 pKa = 7.31  PTHH394 pKa = 6.81  RR395 pKa = 11.84  DD396 pKa = 3.87  FIYY399 pKa = 10.71  ADD401 pKa = 2.81  NWYY404 pKa = 9.85  IFYY407 pKa = 10.6  RR408 pKa = 11.84  NEE410 pKa = 4.88  DD411 pKa = 3.47  GTTDD415 pKa = 3.84  YY416 pKa = 11.68  YY417 pKa = 11.72  SLDD420 pKa = 3.82  LEE422 pKa = 4.53  KK423 pKa = 11.37  GEE425 pKa = 5.34  ANATPDD431 pKa = 2.94  IAQCISYY438 pKa = 10.82  YY439 pKa = 10.73  LLTRR443 pKa = 11.84  GWISDD448 pKa = 3.59  DD449 pKa = 4.29  GIVGFGPTWSTFLTQIVPACIVDD472 pKa = 4.19  NISVYY477 pKa = 11.46  YY478 pKa = 10.73  NMQLRR483 pKa = 11.84  FPGQASGNTYY493 pKa = 9.32  TFLINHH499 pKa = 7.11  AVTTKK504 pKa = 10.42  LRR506 pKa = 11.84  QEE508 pKa = 4.05  WLNRR512 pKa = 11.84  GCPRR516 pKa = 11.84  PGSAEE521 pKa = 3.67  FTQCCKK527 pKa = 9.98  KK528 pKa = 9.46  TGVNTKK534 pKa = 9.91  IEE536 pKa = 4.14  FHH538 pKa = 6.53  SEE540 pKa = 3.56  NLEE543 pKa = 4.03  QQVKK547 pKa = 7.53  EE548 pKa = 4.69  TIANTPNVGFLQGDD562 pKa = 3.78  STDD565 pKa = 3.79  SVDD568 pKa = 5.41  ANGQSWFQKK577 pKa = 10.31  ALPRR581 pKa = 11.84  LKK583 pKa = 10.55  LDD585 pKa = 3.56  LLGYY589 pKa = 10.03  DD590 pKa = 3.66  AVYY593 pKa = 10.72  SHH595 pKa = 6.4  QLGIFIPVLAEE606 pKa = 3.49  EE607 pKa = 4.35  RR608 pKa = 11.84  FYY610 pKa = 10.92  PSMMWPRR617 pKa = 11.84  KK618 pKa = 9.58  GGEE621 pKa = 4.11  TIKK624 pKa = 10.89  DD625 pKa = 3.49  YY626 pKa = 10.9  IQRR629 pKa = 11.84  NLYY632 pKa = 9.72  NLVRR636 pKa = 11.84  YY637 pKa = 8.12  EE638 pKa = 3.98  VLRR641 pKa = 11.84  IMGGWTIPLADD652 pKa = 3.54  QALHH656 pKa = 6.58  NMATNIRR663 pKa = 11.84  TNIVDD668 pKa = 4.12  KK669 pKa = 10.26  RR670 pKa = 11.84  HH671 pKa = 6.29  KK672 pKa = 9.89  MDD674 pKa = 2.9  TSTFLGQEE682 pKa = 4.04  DD683 pKa = 4.86  LAPDD687 pKa = 3.81  LWGAMEE693 pKa = 5.26  DD694 pKa = 3.55  SGLTTEE700 pKa = 5.24  LALNPEE706 pKa = 4.64  FSMTHH711 pKa = 5.57  EE712 pKa = 4.42  LLTRR716 pKa = 11.84  LNTPKK721 pKa = 9.08  QTSPEE726 pKa = 3.94  HH727 pKa = 6.1  MPVKK731 pKa = 10.12  PKK733 pKa = 9.86  PRR735 pKa = 11.84  HH736 pKa = 4.71  LSKK739 pKa = 10.91  PEE741 pKa = 3.77  LMADD745 pKa = 3.5  LQEE748 pKa = 4.51  LKK750 pKa = 10.77  KK751 pKa = 11.03  SLTNLTSSHH760 pKa = 5.29  TEE762 pKa = 3.48  KK763 pKa = 11.08  LLAKK767 pKa = 9.86  PEE769 pKa = 4.09  YY770 pKa = 10.07  VRR772 pKa = 11.84  SKK774 pKa = 10.76  LEE776 pKa = 3.89  EE777 pKa = 4.1  VIKK780 pKa = 9.49  TFPSLEE786 pKa = 4.26  AIITIMGKK794 pKa = 9.98  YY795 pKa = 9.07  EE796 pKa = 4.03  DD797 pKa = 5.18  LYY799 pKa = 11.51  SEE801 pKa = 4.75  LDD803 pKa = 3.25  EE804 pKa = 4.83  VYY806 pKa = 10.58  NNKK809 pKa = 9.0  MKK811 pKa = 10.57  IEE813 pKa = 4.28  DD814 pKa = 3.86  FMDD817 pKa = 5.25  KK818 pKa = 9.45  LTHH821 pKa = 7.26  WINQAQHH828 pKa = 5.33  EE829 pKa = 4.66  MEE831 pKa = 3.84  EE832 pKa = 4.25  AMRR835 pKa = 11.84  KK836 pKa = 9.33  SIRR839 pKa = 11.84  VVQQAQVQDD848 pKa = 3.93  YY849 pKa = 9.93  EE850 pKa = 4.52  NIEE853 pKa = 3.88  AFYY856 pKa = 10.93  EE857 pKa = 4.1  KK858 pKa = 10.65  DD859 pKa = 3.24  PTKK862 pKa = 10.7  LADD865 pKa = 3.53  PLGYY869 pKa = 10.26  KK870 pKa = 10.15  GAQTLVGKK878 pKa = 8.49  HH879 pKa = 5.41  TFPEE883 pKa = 4.43  SSSTIPASLTKK894 pKa = 10.28  SQKK897 pKa = 10.57  KK898 pKa = 9.08  NLKK901 pKa = 9.19  KK902 pKa = 10.14  KK903 pKa = 10.08  QRR905 pKa = 11.84  ISKK908 pKa = 10.14  LRR910 pKa = 11.84  DD911 pKa = 2.81  IEE913 pKa = 4.14  QASWSRR919 pKa = 11.84  DD920 pKa = 3.16  ALGEE924 pKa = 4.0  IRR926 pKa = 11.84  KK927 pKa = 9.41  HH928 pKa = 6.43  EE929 pKa = 4.23  EE930 pKa = 3.74  DD931 pKa = 3.5  LL932 pKa = 4.52  
 107.29 kDa
Isoelectric point according different methods: 
IPC2.protein.svr19  6.736 
IPC2_protein 7.059 
IPC_protein 7.0 
Toseland    6.971 
ProMoST     7.527 
Dawson      7.658 
Bjellqvist  7.819 
Wikipedia   7.6 
Rodwell     7.673 
Grimsley    7.088 
Solomon     7.688 
Lehninger   7.702 
Nozaki      8.009 
DTASelect   7.819 
Thurlkill   7.863 
EMBOSS      7.922 
Sillero     8.083 
Patrickios  4.355 
IPC_peptide 7.688 
IPC2_peptide  7.088 
IPC2.peptide.svr19  7.191 
 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  
 
  
    ChTry  
 
  
    ArgC  
 
  
    LysN  
 
  
    TryLysC  
 
  
    Try  
 
  
    ChTry  
 
  
    ArgC  
 
  
    LysN  
 
  
    TryLysC  
 
  
    Try  
 
  
    ChTry  
 
  
    ArgC  
 
  
    LysN  
 
  
    TryLysC  
 
  
    Try  
 
  
    ChTry  
 
  
    ArgC  
 
  
    LysN  
 
  
    TryLysC  
 
  
    Try  
 
  
    ChTry  
 
  
    ArgC  
 
  
    LysN  
 
  
    TryLysC  
   
  
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
 
     
    
      
        3 
0
3 
2064
153
979
688.0
77.15
          
     
  
 
    Amino acid frequency 
  
  
    
      
        Ala
Cys
Asp
Glu
Phe
Gly
His
Ile
Lys
Leu
 
     
    
                 
        6.444 ± 0.605
0.969 ± 0.242
5.378 ± 0.444
5.959 ± 0.818
2.665 ± 0.746
5.959 ± 1.208
1.89 ± 0.336
6.541 ± 0.774
6.153 ± 1.126
8.915 ± 0.998
          
     
  
  
  
      
          
        Met
Asn
Gln
Pro
Arg
Ser
Thr
Val
Trp
Tyr
 
     
    
                 
        2.616 ± 0.278
5.039 ± 0.589
6.105 ± 0.667
4.36 ± 0.532
5.087 ± 0.05
7.219 ± 1.132
7.897 ± 0.454
5.329 ± 0.986
0.969 ± 0.24
4.506 ± 0.103
          
     
  
  
  
Note:  For amino acid frequency statistics the error has been estimated with the bootstraping (x100) at the protein levelMost of the basic statistics you can see at this page can be downloaded from this CSV file  
For dipeptide frequency statistics click here