Leek white stripe virus 
Average proteome isoelectric point is 7.67 
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 5 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|Q83106|Q83106_9TOMB Capsid protein OS=Leek white stripe virus OX=45224 GN=ORF 5 PE=3 SV=1 
MM1 pKa = 7.14  VIVVRR6 pKa = 11.84  EE7 pKa = 3.95  SSFPLLAVWIIVIVLVAVIGALLQTPPEE35 pKa = 4.51  TINQVFNEE43 pKa = 4.27  DD44 pKa = 3.24  HH45 pKa = 7.25  HH46 pKa = 5.86  KK47 pKa = 8.4  TQYY50 pKa = 11.06  INIGKK55 pKa = 8.89  PP56 pKa = 2.96   
 Molecular weight: 6.27 kDa
Isoelectric point according different methods: 
IPC2.protein.svr19  5.882 
IPC2_protein 5.779 
IPC_protein 5.766 
Toseland    6.351 
ProMoST     6.135 
Dawson      6.046 
Bjellqvist  5.995 
Wikipedia   6.071 
Rodwell     6.033 
Grimsley    6.561 
Solomon     6.046 
Lehninger   6.046 
Nozaki      6.287 
DTASelect   6.504 
Thurlkill   6.532 
EMBOSS      6.504 
Sillero     6.415 
Patrickios  4.38 
IPC_peptide 6.071 
IPC2_peptide  6.415 
IPC2.peptide.svr19  6.417 
 Protein with the highest isoelectric point: 
>tr|Q83103|Q83103_9TOMB RNA-directed RNA polymerase OS=Leek white stripe virus OX=45224 GN=ORF 2 PE=3 SV=1 
MM1 pKa = 7.41  HH2 pKa = 7.39  TPQCIARR9 pKa = 11.84  FGTTCHH15 pKa = 4.79  THH17 pKa = 5.26  IRR19 pKa = 11.84  TARR22 pKa = 11.84  LLYY25 pKa = 10.88  VKK27 pKa = 7.83  TTYY30 pKa = 9.7  FQRR33 pKa = 11.84  FLFMFFVYY41 pKa = 10.33  SAVPVLFVPILFIAFFHH58 pKa = 7.09  RR59 pKa = 11.84  FFKK62 pKa = 10.83  LQLGFSPEE70 pKa = 3.82  ATALMHH76 pKa = 6.85  RR77 pKa = 11.84  FVDD80 pKa = 4.27  LFSRR84 pKa = 11.84  DD85 pKa = 3.91  DD86 pKa = 3.7  EE87 pKa = 4.36  PVITEE92 pKa = 4.09  TSCNVDD98 pKa = 4.14  FLPGPEE104 pKa = 3.92  SRR106 pKa = 11.84  KK107 pKa = 9.98  EE108 pKa = 3.68  NLVAPKK114 pKa = 10.07  RR115 pKa = 11.84  RR116 pKa = 11.84  NHH118 pKa = 6.37  YY119 pKa = 8.86  IVKK122 pKa = 9.89  VAMAAKK128 pKa = 9.93  SQVGLLGNSRR138 pKa = 11.84  ANEE141 pKa = 3.65  LVYY144 pKa = 10.97  ARR146 pKa = 11.84  LCRR149 pKa = 11.84  EE150 pKa = 3.88  EE151 pKa = 4.09  MVKK154 pKa = 10.57  HH155 pKa = 5.76  GVRR158 pKa = 11.84  PSHH161 pKa = 6.92  IARR164 pKa = 11.84  MVPLAVDD171 pKa = 3.6  CHH173 pKa = 6.7  CFIPMDD179 pKa = 4.4  EE180 pKa = 5.71  DD181 pKa = 3.35  IMAAEE186 pKa = 4.35  MMRR189 pKa = 11.84  TDD191 pKa = 3.09  VMRR194 pKa = 11.84  SRR196 pKa = 11.84  RR197 pKa = 11.84  KK198 pKa = 10.73  DD199 pKa = 3.16  MGDD202 pKa = 3.06  SHH204 pKa = 7.48  AKK206 pKa = 9.59   
 Molecular weight: 23.82 kDa
Isoelectric point according different methods: 
IPC2.protein.svr19  8.853 
IPC2_protein 8.58 
IPC_protein 8.58 
Toseland    9.033 
ProMoST     9.165 
Dawson      9.385 
Bjellqvist  9.385 
Wikipedia   9.516 
Rodwell     9.516 
Grimsley    9.311 
Solomon     9.516 
Lehninger   9.487 
Nozaki      9.589 
DTASelect   9.224 
Thurlkill   9.326 
EMBOSS      9.545 
Sillero     9.531 
Patrickios  4.978 
IPC_peptide 9.502 
IPC2_peptide  8.448 
IPC2.peptide.svr19  7.86 
  
 
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
 
       
     
    
      
        5 
 
        
        0
 
        
        5 
         
        1340
 
        56
 
        727
 
        268.0
 
        30.31
 
                
     
  
 
    Amino acid frequency 
  
  
    
      
        Ala
 
        Cys
 
        Asp
 
        Glu
 
        Phe
 
        Gly
 
        His
 
        Ile
 
        Lys
 
        Leu
 
       
     
    
                 
        6.567 ± 0.621
2.09 ± 0.348
 
        4.328 ± 0.34
5.299 ± 0.72
 
        6.791 ± 0.482
6.343 ± 1.034
 
        3.06 ± 0.574
5.0 ± 0.917
       
        5.149 ± 0.28
8.06 ± 0.997
         
                
     
  
  
  
      
          
        Met
         
        Asn
 
        Gln
 
        Pro
         
        Arg
 
        Ser
 
        Thr
 
        Val
 
        Trp
 
        Tyr
  
       
     
    
                 
        3.731 ± 0.544
4.403 ± 1.32
 
        5.373 ± 0.333
2.836 ± 0.282
 
        6.94 ± 1.064
6.94 ± 1.206
 
        5.597 ± 0.15
7.761 ± 0.894
       
        0.896 ± 0.299
2.761 ± 0.343
         
                
     
  
  
  
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