American plum line pattern virus 
Average proteome isoelectric point is 6.62 
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 4 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|Q997A3|Q997A3_9BROM RNA-directed RNA polymerase 2a OS=American plum line pattern virus OX=134632 PE=4 SV=1 
MM1 pKa = 7.51  AKK3 pKa = 9.77  EE4 pKa = 4.15  SSSGFSTRR12 pKa = 11.84  VTSRR16 pKa = 11.84  LDD18 pKa = 3.75  AIAEE22 pKa = 3.97  EE23 pKa = 4.72  RR24 pKa = 11.84  EE25 pKa = 3.76  MDD27 pKa = 3.58  EE28 pKa = 5.3  FLDD31 pKa = 4.44  FVTKK35 pKa = 10.75  SPIKK39 pKa = 10.6  QKK41 pKa = 9.38  MCCDD45 pKa = 3.34  IPLKK49 pKa = 10.34  NSEE52 pKa = 4.21  MLSFVNLVTKK62 pKa = 10.24  EE63 pKa = 4.28  SKK65 pKa = 10.77  SFLSLFKK72 pKa = 10.63  KK73 pKa = 10.08  IPVYY77 pKa = 10.22  TNHH80 pKa = 7.14  PLISVIYY87 pKa = 9.81  IPVVLNDD94 pKa = 3.77  APGVLDD100 pKa = 3.58  VALVNPITRR109 pKa = 11.84  DD110 pKa = 3.16  RR111 pKa = 11.84  RR112 pKa = 11.84  EE113 pKa = 4.03  ILCNWPLSKK122 pKa = 10.72  AVLVMTNWTRR132 pKa = 11.84  SIAKK136 pKa = 9.78  GAEE139 pKa = 3.78  LNLAYY144 pKa = 9.7  EE145 pKa = 4.39  VSNTQVKK152 pKa = 10.35  LDD154 pKa = 3.61  QQIGRR159 pKa = 11.84  FRR161 pKa = 11.84  ILWADD166 pKa = 3.58  VPSSKK171 pKa = 10.4  QIYY174 pKa = 8.5  EE175 pKa = 4.07  KK176 pKa = 10.27  EE177 pKa = 4.16  RR178 pKa = 11.84  PPMIVDD184 pKa = 4.39  LEE186 pKa = 4.39  EE187 pKa = 4.47  TGCTMHH193 pKa = 6.75  QYY195 pKa = 11.21  SDD197 pKa = 3.35  QTLLQFVNATMVSGVRR213 pKa = 11.84  KK214 pKa = 9.05  PRR216 pKa = 11.84  EE217 pKa = 3.75  DD218 pKa = 3.45  RR219 pKa = 11.84  KK220 pKa = 10.64  LLRR223 pKa = 11.84  LKK225 pKa = 10.32  SLRR228 pKa = 11.84  TGFEE232 pKa = 3.76  IEE234 pKa = 4.08  PAQDD238 pKa = 3.47  DD239 pKa = 3.97  EE240 pKa = 5.8  ADD242 pKa = 3.67  EE243 pKa = 4.66  GKK245 pKa = 10.1  KK246 pKa = 10.92  GPIIVPSAPEE256 pKa = 3.62  EE257 pKa = 3.73  LHH259 pKa = 6.46  RR260 pKa = 11.84  PFVIEE265 pKa = 3.99  GEE267 pKa = 4.45  GVIGGPIMTVIEE279 pKa = 4.37  FEE281 pKa = 5.16  DD282 pKa = 4.11  IAWHH286 pKa = 7.17  LGDD289 pKa = 3.72  QQ290 pKa = 3.8   
 Molecular weight: 32.76 kDa
Isoelectric point according different methods: 
IPC2.protein.svr19  5.252 
IPC2_protein 5.296 
IPC_protein 5.219 
Toseland    5.169 
ProMoST     5.347 
Dawson      5.207 
Bjellqvist  5.334 
Wikipedia   5.067 
Rodwell     5.13 
Grimsley    5.105 
Solomon     5.207 
Lehninger   5.169 
Nozaki      5.334 
DTASelect   5.461 
Thurlkill   5.181 
EMBOSS      5.118 
Sillero     5.41 
Patrickios  4.431 
IPC_peptide 5.219 
IPC2_peptide  5.41 
IPC2.peptide.svr19  5.43 
 Protein with the highest isoelectric point: 
>tr|Q997A2|Q997A2_9BROM Movement protein OS=American plum line pattern virus OX=134632 PE=4 SV=1 
MM1 pKa = 7.64  LKK3 pKa = 9.89  MNAPQNKK10 pKa = 9.01  GKK12 pKa = 10.44  KK13 pKa = 8.24  KK14 pKa = 9.72  QNARR18 pKa = 11.84  TTQFAQRR25 pKa = 11.84  RR26 pKa = 11.84  AAAARR31 pKa = 11.84  GEE33 pKa = 4.31  IEE35 pKa = 4.05  TSSRR39 pKa = 11.84  NITARR44 pKa = 11.84  SGGPPVPRR52 pKa = 11.84  SIRR55 pKa = 11.84  TEE57 pKa = 3.77  WEE59 pKa = 3.7  LVGPSVGARR68 pKa = 11.84  LIQGPHH74 pKa = 5.4  NEE76 pKa = 4.26  VVKK79 pKa = 11.07  GEE81 pKa = 4.11  AVASSTTAGQYY92 pKa = 10.45  FSIQISTYY100 pKa = 9.57  LEE102 pKa = 4.14  KK103 pKa = 10.41  FLEE106 pKa = 4.35  MGVQLNSMTVLCASLQGSGIVCLTHH131 pKa = 7.59  KK132 pKa = 9.31  FTTCEE137 pKa = 3.7  AAISTLSGLRR147 pKa = 11.84  FRR149 pKa = 11.84  EE150 pKa = 4.14  GRR152 pKa = 11.84  RR153 pKa = 11.84  LGFQVLPPSDD163 pKa = 3.47  TVAGDD168 pKa = 3.23  VASNVRR174 pKa = 11.84  LVFKK178 pKa = 10.48  FDD180 pKa = 3.44  KK181 pKa = 10.85  AFEE184 pKa = 4.52  ANAPLIEE191 pKa = 4.16  RR192 pKa = 11.84  KK193 pKa = 9.74  VWVSTSRR200 pKa = 11.84  LPEE203 pKa = 3.46  IMIPANLLVPDD214 pKa = 4.32  EE215 pKa = 4.57  DD216 pKa = 3.82   
 Molecular weight: 23.5 kDa
Isoelectric point according different methods: 
IPC2.protein.svr19  8.999 
IPC2_protein 8.916 
IPC_protein 8.916 
Toseland    9.94 
ProMoST     9.472 
Dawson      10.058 
Bjellqvist  9.706 
Wikipedia   10.175 
Rodwell     10.511 
Grimsley    10.087 
Solomon     10.116 
Lehninger   10.101 
Nozaki      9.999 
DTASelect   9.663 
Thurlkill   9.94 
EMBOSS      10.321 
Sillero     9.999 
Patrickios  10.277 
IPC_peptide 10.116 
IPC2_peptide  8.375 
IPC2.peptide.svr19  7.854 
  
 
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
 
       
     
    
      
        4 
 
        
        0
 
        
        4 
         
        2308
 
        216
 
        1062
 
        577.0
 
        65.3
 
                
     
  
 
    Amino acid frequency 
  
  
    
      
        Ala
 
        Cys
 
        Asp
 
        Glu
 
        Phe
 
        Gly
 
        His
 
        Ile
 
        Lys
 
        Leu
 
       
     
    
                 
        6.023 ± 0.767
2.21 ± 0.302
 
        6.066 ± 0.706
6.586 ± 0.624
 
        5.199 ± 0.603
5.069 ± 0.401
 
        2.21 ± 0.355
5.156 ± 0.735
       
        5.936 ± 0.128
8.925 ± 0.835
         
                
     
  
  
  
      
          
        Met
         
        Asn
 
        Gln
 
        Pro
         
        Arg
 
        Ser
 
        Thr
 
        Val
 
        Trp
 
        Tyr
  
       
     
    
                 
        2.08 ± 0.266
3.423 ± 0.478
 
        4.809 ± 0.487
2.946 ± 0.334
 
        6.326 ± 0.417
8.362 ± 0.357
 
        5.719 ± 0.158
8.536 ± 0.196
       
        1.213 ± 0.177
3.206 ± 0.606
         
                
     
  
  
  
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