Mycobacterium phage Spartacus 
Average proteome isoelectric point is 5.99 
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 110 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|H6WSI4|H6WSI4_9CAUD Uncharacterized protein OS=Mycobacterium phage Spartacus OX=1147141 GN=82 PE=4 SV=1 
MM1 pKa = 7.09  SHH3 pKa = 6.38  KK4 pKa = 9.94  HH5 pKa = 6.67  DD6 pKa = 5.2  EE7 pKa = 4.28  IDD9 pKa = 4.94  PISQLEE15 pKa = 4.11  LDD17 pKa = 3.99  VLEE20 pKa = 5.24  SGDD23 pKa = 4.97  LEE25 pKa = 4.79  LATQVGEE32 pKa = 4.3  VARR35 pKa = 11.84  WAYY38 pKa = 8.26  ATTVEE43 pKa = 4.56  SLCALLCLPSEE54 pKa = 4.6  VAEE57 pKa = 3.99  QMVNEE62 pKa = 4.22  WFLRR66 pKa = 3.83   
 Molecular weight: 7.43 kDa
Isoelectric point according different methods: 
IPC2.protein.svr19  4.142 
IPC2_protein 4.19 
IPC_protein 4.037 
Toseland    3.884 
ProMoST     4.151 
Dawson      3.986 
Bjellqvist  4.139 
Wikipedia   3.859 
Rodwell     3.872 
Grimsley    3.795 
Solomon     3.961 
Lehninger   3.923 
Nozaki      4.113 
DTASelect   4.202 
Thurlkill   3.91 
EMBOSS      3.884 
Sillero     4.151 
Patrickios  3.083 
IPC_peptide 3.973 
IPC2_peptide  4.126 
IPC2.peptide.svr19  4.045 
 Protein with the highest isoelectric point: 
>tr|H6WSI3|H6WSI3_9CAUD Uncharacterized protein OS=Mycobacterium phage Spartacus OX=1147141 GN=81 PE=4 SV=1 
MM1 pKa = 8.05  PDD3 pKa = 3.23  RR4 pKa = 11.84  YY5 pKa = 10.61  GDD7 pKa = 3.62  STPEE11 pKa = 3.43  PRR13 pKa = 11.84  VFVRR17 pKa = 11.84  PKK19 pKa = 10.42  VNALTVRR26 pKa = 11.84  CSWCKK31 pKa = 9.95  AGVGSRR37 pKa = 11.84  CVVAGTGVVLRR48 pKa = 11.84  RR49 pKa = 11.84  SSFHH53 pKa = 6.57  DD54 pKa = 3.25  VRR56 pKa = 11.84  VRR58 pKa = 11.84  DD59 pKa = 3.96  AEE61 pKa = 4.18  LAATGALARR70 pKa = 11.84  GRR72 pKa = 11.84  MSS74 pKa = 3.0   
 Molecular weight: 8.0 kDa
Isoelectric point according different methods: 
IPC2.protein.svr19  9.323 
IPC2_protein 9.502 
IPC_protein 10.657 
Toseland    10.818 
ProMoST     10.862 
Dawson      10.862 
Bjellqvist  10.716 
Wikipedia   11.184 
Rodwell     10.804 
Grimsley    10.906 
Solomon     11.155 
Lehninger   11.096 
Nozaki      10.847 
DTASelect   10.701 
Thurlkill   10.818 
EMBOSS      11.257 
Sillero     10.833 
Patrickios  10.643 
IPC_peptide 11.155 
IPC2_peptide  10.218 
IPC2.peptide.svr19  8.879 
  
 
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
 
       
     
    
      
        110 
 
        
        0
 
        
        110 
         
        19279
 
        26
 
        1174
 
        175.3
 
        19.18
 
                
     
  
 
    Amino acid frequency 
  
  
    
      
        Ala
 
        Cys
 
        Asp
 
        Glu
 
        Phe
 
        Gly
 
        His
 
        Ile
 
        Lys
 
        Leu
 
       
     
    
                 
        10.664 ± 0.501
1.25 ± 0.159
 
        6.582 ± 0.232
5.846 ± 0.284
 
        3.097 ± 0.206
8.792 ± 0.61
 
        2.22 ± 0.178
4.393 ± 0.194
       
        3.278 ± 0.171
7.433 ± 0.266
         
                
     
  
  
  
      
          
        Met
         
        Asn
 
        Gln
 
        Pro
         
        Arg
 
        Ser
 
        Thr
 
        Val
 
        Trp
 
        Tyr
  
       
     
    
                 
        2.256 ± 0.107
3.377 ± 0.149
 
        5.835 ± 0.208
3.397 ± 0.164
 
        6.925 ± 0.391
5.846 ± 0.271
 
        6.567 ± 0.241
7.407 ± 0.289
       
        2.272 ± 0.143
2.562 ± 0.118
         
                
     
  
  
  
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