Escherichia phage vB_EcoM_VR7 
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 293 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|E5FIR0|E5FIR0_9CAUD Gp55 RNA polymerase sigma factor OS=Escherichia phage vB_EcoM_VR7 OX=700939 GN=55 PE=4 SV=1 
MM1 pKa = 7.8  RR2 pKa = 11.84  LYY4 pKa = 10.85  DD5 pKa = 3.98  FNEE8 pKa = 4.02  ACLEE12 pKa = 4.25  HH13 pKa = 8.15  IRR15 pKa = 11.84  EE16 pKa = 4.36  CDD18 pKa = 3.83  VVDD21 pKa = 6.32  DD22 pKa = 4.97  DD23 pKa = 5.14  NQPNTIKK30 pKa = 10.67  YY31 pKa = 8.09  WFEE34 pKa = 4.98  AITDD38 pKa = 3.95  RR39 pKa = 11.84  EE40 pKa = 4.22  TGQLIKK46 pKa = 10.89  VYY48 pKa = 10.64  VVTDD52 pKa = 3.6  WAVEE56 pKa = 4.0  FSFNVMEE63 pKa = 5.94  DD64 pKa = 3.71  DD65 pKa = 3.78  TPEE68 pKa = 4.19  TLIHH72 pKa = 5.85  MAEE75 pKa = 4.12  SCIKK79 pKa = 10.31  DD80 pKa = 3.28  AYY82 pKa = 10.2  YY83 pKa = 10.93  DD84 pKa = 3.64  EE85 pKa = 5.92  DD86 pKa = 3.8  FF87 pKa = 4.89   
 Molecular weight: 10.37 kDa
Isoelectric point according different methods: 
IPC2.protein.svr19  3.737 
IPC2_protein 3.897 
IPC_protein 3.859 
Toseland    3.656 
ProMoST     4.012 
Dawson      3.846 
Bjellqvist  3.999 
Wikipedia   3.77 
Rodwell     3.681 
Grimsley    3.567 
Solomon     3.834 
Lehninger   3.783 
Nozaki      3.961 
DTASelect   4.164 
Thurlkill   3.706 
EMBOSS      3.783 
Sillero     3.973 
Patrickios  0.947 
IPC_peptide 3.821 
IPC2_peptide  3.948 
IPC2.peptide.svr19  3.866 
 Protein with the highest isoelectric point: 
>tr|E5FIS8|E5FIS8_9CAUD Uncharacterized protein 49.1 OS=Escherichia phage vB_EcoM_VR7 OX=700939 GN=49.1 PE=4 SV=1 
MM1 pKa = 7.05  KK2 pKa = 9.75  TVLVYY7 pKa = 9.03  TEE9 pKa = 4.46  KK10 pKa = 11.26  LNGGKK15 pKa = 8.33  VWKK18 pKa = 10.04  LLIKK22 pKa = 10.6  GSPTDD27 pKa = 3.52  RR28 pKa = 11.84  FMVTCVGLYY37 pKa = 7.88  TRR39 pKa = 11.84  PTKK42 pKa = 10.87  KK43 pKa = 9.69  MIRR46 pKa = 11.84  QFKK49 pKa = 8.73  RR50 pKa = 11.84  LHH52 pKa = 5.81  RR53 pKa = 11.84  SFYY56 pKa = 10.96  NII58 pKa = 3.6   
 Molecular weight: 6.89 kDa
Isoelectric point according different methods: 
IPC2.protein.svr19  9.289 
IPC2_protein 10.043 
IPC_protein 10.57 
Toseland    10.877 
ProMoST     10.452 
Dawson      10.965 
Bjellqvist  10.613 
Wikipedia   11.125 
Rodwell     11.447 
Grimsley    10.994 
Solomon     11.038 
Lehninger   11.008 
Nozaki      10.847 
DTASelect   10.599 
Thurlkill   10.862 
EMBOSS      11.257 
Sillero     10.877 
Patrickios  11.199 
IPC_peptide 11.038 
IPC2_peptide  9.414 
IPC2.peptide.svr19  8.33 
  
 
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
 
       
     
    
      
        293 
 
        
        0
 
        
        293 
         
        53667
 
        29
 
        1291
 
        183.2
 
        20.75
 
                
     
  
 
    Amino acid frequency 
  
  
    
      
        Ala
 
        Cys
 
        Asp
 
        Glu
 
        Phe
 
        Gly
 
        His
 
        Ile
 
        Lys
 
        Leu
 
       
     
    
                 
        7.161 ± 0.166
1.116 ± 0.076
 
        6.194 ± 0.112
7.196 ± 0.166
 
        4.414 ± 0.113
6.335 ± 0.238
 
        1.809 ± 0.088
6.844 ± 0.098
       
        7.496 ± 0.211
7.455 ± 0.149
         
                
     
  
  
  
      
          
        Met
         
        Asn
 
        Gln
 
        Pro
         
        Arg
 
        Ser
 
        Thr
 
        Val
 
        Trp
 
        Tyr
  
       
     
    
                 
        2.814 ± 0.101
5.305 ± 0.131
 
        3.615 ± 0.096
3.764 ± 0.113
 
        4.269 ± 0.098
5.905 ± 0.168
 
        6.041 ± 0.226
6.596 ± 0.126
       
        1.444 ± 0.061
4.226 ± 0.108
         
                
     
  
  
  
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