Escherichia phage chee24 
Average proteome isoelectric point is 6.16 
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 153 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|A0A2K8HP56|A0A2K8HP56_9CAUD Tail length tape-measure protein OS=Escherichia phage chee24 OX=2024330 GN=P24_0132 PE=4 SV=1 
MM1 pKa = 7.47  SIVKK5 pKa = 9.69  SVYY8 pKa = 7.53  THH10 pKa = 7.3  PDD12 pKa = 3.83  DD13 pKa = 4.1  IFVWADD19 pKa = 3.15  GSWCYY24 pKa = 10.27  RR25 pKa = 11.84  CEE27 pKa = 4.03  LWEE30 pKa = 4.28  MDD32 pKa = 4.5  YY33 pKa = 11.4  KK34 pKa = 11.19  SDD36 pKa = 3.93  DD37 pKa = 3.5  YY38 pKa = 11.91  GVIYY42 pKa = 10.63  VDD44 pKa = 3.28  TVEE47 pKa = 4.3  YY48 pKa = 8.99  DD49 pKa = 3.32  TFLEE53 pKa = 4.23  RR54 pKa = 11.84  DD55 pKa = 3.42  KK56 pKa = 11.68  NGNKK60 pKa = 9.89   
 Molecular weight: 7.21 kDa
Isoelectric point according different methods: 
IPC2.protein.svr19  3.924 
IPC2_protein 4.202 
IPC_protein 4.113 
Toseland    3.897 
ProMoST     4.279 
Dawson      4.101 
Bjellqvist  4.266 
Wikipedia   4.062 
Rodwell     3.935 
Grimsley    3.821 
Solomon     4.088 
Lehninger   4.05 
Nozaki      4.228 
DTASelect   4.469 
Thurlkill   3.961 
EMBOSS      4.062 
Sillero     4.228 
Patrickios  0.896 
IPC_peptide 4.088 
IPC2_peptide  4.202 
IPC2.peptide.svr19  4.123 
 Protein with the highest isoelectric point: 
>tr|A0A2K8H8W3|A0A2K8H8W3_9CAUD Ribonucleotide reductase of class III (Anaerobic)  large subunit OS=Escherichia phage chee24 OX=2024330 GN=P24_0098 PE=4 SV=1 
MM1 pKa = 7.79  AKK3 pKa = 9.77  QKK5 pKa = 10.18  NAKK8 pKa = 7.58  TQAAPAVKK16 pKa = 9.39  TFPKK20 pKa = 10.24  TEE22 pKa = 4.13  ANRR25 pKa = 11.84  KK26 pKa = 8.94  ARR28 pKa = 11.84  LEE30 pKa = 3.84  RR31 pKa = 11.84  HH32 pKa = 5.4  LRR34 pKa = 11.84  KK35 pKa = 10.0  HH36 pKa = 5.6  PTDD39 pKa = 3.49  AQAAQALNNPAPIRR53 pKa = 11.84  QKK55 pKa = 10.71  PKK57 pKa = 10.52  AKK59 pKa = 9.68  NATRR63 pKa = 11.84  KK64 pKa = 8.39  SYY66 pKa = 11.17  KK67 pKa = 8.89  MVMYY71 pKa = 10.31  VEE73 pKa = 4.89  NYY75 pKa = 7.4  GHH77 pKa = 6.99  KK78 pKa = 9.99  SVPVSLSFNAGAEE91 pKa = 4.17  LFSRR95 pKa = 11.84  NGMSMKK101 pKa = 10.42  DD102 pKa = 3.33  YY103 pKa = 11.01  EE104 pKa = 4.31  KK105 pKa = 10.98  AVNQKK110 pKa = 9.97  RR111 pKa = 11.84  KK112 pKa = 8.13  PTADD116 pKa = 3.13  VLRR119 pKa = 11.84  DD120 pKa = 3.4  TRR122 pKa = 11.84  GQFGSVKK129 pKa = 9.73  PNIFGVEE136 pKa = 3.85  YY137 pKa = 11.02  SKK139 pKa = 11.81  DD140 pKa = 3.37  NVRR143 pKa = 11.84  ALCYY147 pKa = 10.2  GVGIKK152 pKa = 8.51  FTGDD156 pKa = 3.22  SARR159 pKa = 11.84  KK160 pKa = 7.85  SAKK163 pKa = 9.24  PARR166 pKa = 11.84  KK167 pKa = 9.36  RR168 pKa = 11.84  KK169 pKa = 9.78  AKK171 pKa = 10.37   
 Molecular weight: 19.08 kDa
Isoelectric point according different methods: 
IPC2.protein.svr19  9.258 
IPC2_protein 9.897 
IPC_protein 10.248 
Toseland    10.891 
ProMoST     10.438 
Dawson      10.965 
Bjellqvist  10.584 
Wikipedia   11.096 
Rodwell     11.491 
Grimsley    10.994 
Solomon     11.023 
Lehninger   11.008 
Nozaki      10.847 
DTASelect   10.57 
Thurlkill   10.862 
EMBOSS      11.272 
Sillero     10.877 
Patrickios  11.199 
IPC_peptide 11.038 
IPC2_peptide  9.151 
IPC2.peptide.svr19  8.622 
  
 
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
 
       
     
    
      
        153 
 
        
        0
 
        
        153 
         
        30303
 
        37
 
        1226
 
        198.1
 
        22.23
 
                
     
  
 
    Amino acid frequency 
  
  
    
      
        Ala
 
        Cys
 
        Asp
 
        Glu
 
        Phe
 
        Gly
 
        His
 
        Ile
 
        Lys
 
        Leu
 
       
     
    
                 
        7.917 ± 0.37
1.079 ± 0.092
 
        6.155 ± 0.152
7.075 ± 0.231
 
        4.052 ± 0.129
6.643 ± 0.344
 
        1.881 ± 0.118
6.448 ± 0.173
       
        7.184 ± 0.262
8.336 ± 0.22
         
                
     
  
  
  
      
          
        Met
         
        Asn
 
        Gln
 
        Pro
         
        Arg
 
        Ser
 
        Thr
 
        Val
 
        Trp
 
        Tyr
  
       
     
    
                 
        2.69 ± 0.165
5.306 ± 0.171
 
        3.455 ± 0.129
3.911 ± 0.218
 
        4.31 ± 0.115
6.234 ± 0.168
 
        5.689 ± 0.16
6.564 ± 0.173
       
        1.221 ± 0.101
3.851 ± 0.154
         
                
     
  
  
  
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