Entamoeba histolytica 
Average proteome isoelectric point is 6.36 
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 7959 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|C4M586|C4M586_ENTHI Zinc finger domain containing protein OS=Entamoeba histolytica OX=5759 GN=EHI_154180 PE=4 SV=1MM1 pKa = 7.18  NVVKK5 pKa = 10.23  PSAQHH10 pKa = 6.1  IFFDD14 pKa = 3.6  TTDD17 pKa = 4.03  YY18 pKa = 10.87  IIQGCDD24 pKa = 3.12  DD25 pKa = 5.02  DD26 pKa = 5.06  YY27 pKa = 12.0  CFDD30 pKa = 3.59  EE31 pKa = 4.37  EE32 pKa = 4.31  EE33 pKa = 4.79  NYY35 pKa = 10.07  FSHH38 pKa = 7.25  EE39 pKa = 4.44  DD40 pKa = 3.57  EE41 pKa = 4.87  LVTPNEE47 pKa = 4.76  PIVKK51 pKa = 8.81  HH52 pKa = 6.29  LKK54 pKa = 9.46  MKK56 pKa = 10.61  EE57 pKa = 3.7  DD58 pKa = 4.15  DD59 pKa = 5.37  DD60 pKa = 3.68  IHH62 pKa = 8.28  KK63 pKa = 10.78  VIVPPRR69 pKa = 11.84  DD70 pKa = 3.62  YY71 pKa = 11.45  NPVSHH76 pKa = 7.01  ILSAPVYY83 pKa = 9.58  DD84 pKa = 5.25  DD85 pKa = 4.3  SYY87 pKa = 11.82  CMEE90 pKa = 5.33  HH91 pKa = 7.46  DD92 pKa = 3.85  LVEE95 pKa = 4.99  DD96 pKa = 4.03  FTNQRR101 pKa = 11.84  LCKK104 pKa = 10.02  SVQFDD109 pKa = 3.54  KK110 pKa = 11.33  QLGLDD115 pKa = 3.66  SSFDD119 pKa = 3.42  EE120 pKa = 4.99  SDD122 pKa = 4.04  YY123 pKa = 11.74  DD124 pKa = 5.8  DD125 pKa = 5.4  EE126 pKa = 6.3  DD127 pKa = 3.55  NHH129 pKa = 7.97  DD130 pKa = 3.79  NDD132 pKa = 5.05  DD133 pKa = 3.69  YY134 pKa = 12.07  FMFLL138 pKa = 3.83  
 16.3 kDa
Isoelectric point according different methods: 
IPC2.protein.svr19  3.746 
IPC2_protein 3.91 
IPC_protein 3.923 
Toseland    3.706 
ProMoST     4.088 
Dawson      3.923 
Bjellqvist  4.075 
Wikipedia   3.872 
Rodwell     3.745 
Grimsley    3.605 
Solomon     3.923 
Lehninger   3.872 
Nozaki      4.037 
DTASelect   4.304 
Thurlkill   3.757 
EMBOSS      3.884 
Sillero     4.05 
Patrickios  0.922 
IPC_peptide 3.91 
IPC2_peptide  4.024 
IPC2.peptide.svr19  3.917 
 Protein with the highest isoelectric point: 
>tr|C4LX47|C4LX47_ENTHI Uncharacterized protein OS=Entamoeba histolytica OX=5759 GN=EHI_159670 PE=4 SV=1MM1 pKa = 7.5  GRR3 pKa = 11.84  RR4 pKa = 11.84  TLSQRR9 pKa = 11.84  KK10 pKa = 8.83  GRR12 pKa = 11.84  GSIFKK17 pKa = 10.46  SRR19 pKa = 11.84  SHH21 pKa = 6.61  HH22 pKa = 5.9  KK23 pKa = 10.66  LGVAQHH29 pKa = 6.09  RR30 pKa = 11.84  AIDD33 pKa = 3.69  FFEE36 pKa = 4.05  RR37 pKa = 11.84  HH38 pKa = 4.2  STVRR42 pKa = 11.84  GLVKK46 pKa = 10.44  SIEE49 pKa = 4.13  HH50 pKa = 6.64  DD51 pKa = 3.68  PGRR54 pKa = 11.84  GAPLARR60 pKa = 11.84  VVFRR64 pKa = 11.84  NPRR67 pKa = 11.84  QYY69 pKa = 11.68  GLDD72 pKa = 3.46  KK73 pKa = 11.03  EE74 pKa = 5.06  LFICAEE80 pKa = 4.17  GLYY83 pKa = 9.71  SGQYY87 pKa = 9.34  IYY89 pKa = 10.88  CGSKK93 pKa = 10.62  ASLHH97 pKa = 6.45  IGNVLPIGQCPEE109 pKa = 3.87  GTVVCNVEE117 pKa = 4.55  SKK119 pKa = 10.7  PGDD122 pKa = 3.25  RR123 pKa = 11.84  GIIARR128 pKa = 11.84  ASGNYY133 pKa = 8.3  ATVISHH139 pKa = 6.59  NADD142 pKa = 3.28  NEE144 pKa = 4.38  TTRR147 pKa = 11.84  IRR149 pKa = 11.84  LPSGAKK155 pKa = 8.39  KK156 pKa = 8.46  TLKK159 pKa = 10.28  SNCRR163 pKa = 11.84  AMVGIIAGGGRR174 pKa = 11.84  TEE176 pKa = 4.62  KK177 pKa = 10.46  PILKK181 pKa = 10.33  AGVAYY186 pKa = 10.53  RR187 pKa = 11.84  MYY189 pKa = 10.37  KK190 pKa = 10.14  AKK192 pKa = 9.48  RR193 pKa = 11.84  TTWPRR198 pKa = 11.84  VRR200 pKa = 11.84  GVAMNPVDD208 pKa = 3.93  HH209 pKa = 6.8  PHH211 pKa = 6.99  GGGNHH216 pKa = 4.56  QHH218 pKa = 6.11  VGHH221 pKa = 6.95  PTTLKK226 pKa = 10.29  RR227 pKa = 11.84  SSPPGQKK234 pKa = 9.77  AGKK237 pKa = 8.57  VAARR241 pKa = 11.84  RR242 pKa = 11.84  TGLIRR247 pKa = 11.84  GGNKK251 pKa = 9.39  EE252 pKa = 3.82  GAADD256 pKa = 3.55  NN257 pKa = 4.2  
 27.79 kDa
Isoelectric point according different methods: 
IPC2.protein.svr19  9.334 
IPC2_protein 9.838 
IPC_protein 10.672 
Toseland    10.906 
ProMoST     10.628 
Dawson      10.979 
Bjellqvist  10.701 
Wikipedia   11.199 
Rodwell     11.228 
Grimsley    11.023 
Solomon     11.125 
Lehninger   11.096 
Nozaki      10.891 
DTASelect   10.701 
Thurlkill   10.906 
EMBOSS      11.316 
Sillero     10.921 
Patrickios  10.935 
IPC_peptide 11.14 
IPC2_peptide  9.765 
IPC2.peptide.svr19  8.495 
 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  
 
  
    ChTry  
 
  
    ArgC  
 
  
    LysN  
 
  
    TryLysC  
 
  
    Try  
 
  
    ChTry  
 
  
    ArgC  
 
  
    LysN  
 
  
    TryLysC  
 
  
    Try  
 
  
    ChTry  
 
  
    ArgC  
 
  
    LysN  
 
  
    TryLysC  
 
  
    Try  
 
  
    ChTry  
 
  
    ArgC  
 
  
    LysN  
 
  
    TryLysC  
 
  
    Try  
 
  
    ChTry  
 
  
    ArgC  
 
  
    LysN  
 
  
    TryLysC  
   
  
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
 
     
    
      
        7959 
0
7959 
3380165
49
5069
424.7
48.76
          
     
  
 
    Amino acid frequency 
  
  
    
      
        Ala
Cys
Asp
Glu
Phe
Gly
His
Ile
Lys
Leu
 
     
    
                 
        3.524 ± 0.028
2.235 ± 0.027
5.034 ± 0.019
7.85 ± 0.039
4.797 ± 0.021
4.419 ± 0.024
1.842 ± 0.011
9.273 ± 0.032
8.791 ± 0.036
8.824 ± 0.033
          
     
  
  
  
      
          
        Met
Asn
Gln
Pro
Arg
Ser
Thr
Val
Trp
Tyr
 
     
    
                 
        2.321 ± 0.011
6.506 ± 0.026
3.586 ± 0.021
4.249 ± 0.022
3.416 ± 0.02
7.401 ± 0.029
5.661 ± 0.021
5.48 ± 0.02
0.784 ± 0.007
3.913 ± 0.018
          
     
  
  
  
Note:  For amino acid frequency statistics the error has been estimated with the bootstraping (x100) at the protein levelMost of the basic statistics you can see at this page can be downloaded from this CSV file  
For dipeptide frequency statistics click here