Circoviridae 3 LDMD-2013 
Average proteome isoelectric point is 9.05 
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 2 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|S5T672|S5T672_9CIRC Coat protein OS=Circoviridae 3 LDMD-2013 OX=1379707 PE=4 SV=1 
MM1 pKa = 7.76  SIPAQTWNTLGFGTRR16 pKa = 11.84  ATAAEE21 pKa = 4.27  ALAGDD26 pKa = 4.55  ALIAAGPVALGAAALGGIAYY46 pKa = 9.9  AGYY49 pKa = 9.66  KK50 pKa = 9.61  QMARR54 pKa = 11.84  RR55 pKa = 11.84  RR56 pKa = 11.84  PRR58 pKa = 11.84  SFPGPYY64 pKa = 9.07  RR65 pKa = 11.84  PKK67 pKa = 10.54  KK68 pKa = 9.24  RR69 pKa = 11.84  GSYY72 pKa = 9.99  GPRR75 pKa = 11.84  SRR77 pKa = 11.84  PPSRR81 pKa = 11.84  RR82 pKa = 11.84  YY83 pKa = 9.53  RR84 pKa = 11.84  LPNLRR89 pKa = 11.84  IGGWLNRR96 pKa = 11.84  EE97 pKa = 4.27  LKK99 pKa = 10.77  FKK101 pKa = 10.57  DD102 pKa = 3.17  VQRR105 pKa = 11.84  NVSISTTIAGSEE117 pKa = 3.81  IDD119 pKa = 3.6  PDD121 pKa = 4.17  GGVNCLNAISQGDD134 pKa = 4.02  GEE136 pKa = 4.35  EE137 pKa = 4.05  QRR139 pKa = 11.84  DD140 pKa = 3.63  GRR142 pKa = 11.84  GYY144 pKa = 10.81  KK145 pKa = 8.4  ITSVHH150 pKa = 5.39  LRR152 pKa = 11.84  GYY154 pKa = 10.55  VLFAGQSGAGATSDD168 pKa = 3.05  HH169 pKa = 5.97  MRR171 pKa = 11.84  IILLQDD177 pKa = 3.21  TQTNGTQFNAEE188 pKa = 4.09  DD189 pKa = 4.12  VIDD192 pKa = 4.05  NSSGVNEE199 pKa = 4.27  LQTVAFRR206 pKa = 11.84  NLEE209 pKa = 3.69  NTNRR213 pKa = 11.84  FKK215 pKa = 10.63  ILKK218 pKa = 9.54  DD219 pKa = 3.22  IVVHH223 pKa = 6.86  KK224 pKa = 7.98  PTTGLAGNQANPGDD238 pKa = 4.14  VEE240 pKa = 5.0  SNSATMPIQMDD251 pKa = 3.81  VNFKK255 pKa = 10.78  YY256 pKa = 10.02  PVNVLCTGTGGTVSNLTDD274 pKa = 3.3  NSFHH278 pKa = 7.66  LMAISVNSGNSFRR291 pKa = 11.84  YY292 pKa = 8.12  ICRR295 pKa = 11.84  TRR297 pKa = 11.84  FVGG300 pKa = 4.21   
 Molecular weight: 32.33 kDa
Isoelectric point according different methods: 
IPC2.protein.svr19  8.951 
IPC2_protein 9.224 
IPC_protein 9.414 
Toseland    9.765 
ProMoST     9.589 
Dawson      10.043 
Bjellqvist  9.794 
Wikipedia   10.262 
Rodwell     10.233 
Grimsley    10.145 
Solomon     10.087 
Lehninger   10.043 
Nozaki      9.838 
DTASelect   9.765 
Thurlkill   9.867 
EMBOSS      10.189 
Sillero     9.97 
Patrickios  5.563 
IPC_peptide 10.072 
IPC2_peptide  8.653 
IPC2.peptide.svr19  8.193 
 Protein with the highest isoelectric point: 
>tr|S5T672|S5T672_9CIRC Coat protein OS=Circoviridae 3 LDMD-2013 OX=1379707 PE=4 SV=1 
MM1 pKa = 8.05  PSQQSRR7 pKa = 11.84  NWVFTWNNPPFQGTDD22 pKa = 3.35  LEE24 pKa = 4.44  IEE26 pKa = 4.25  EE27 pKa = 4.8  KK28 pKa = 10.91  LDD30 pKa = 4.43  DD31 pKa = 4.37  FFTGQEE37 pKa = 3.96  RR38 pKa = 11.84  LGDD41 pKa = 3.51  WSYY44 pKa = 11.83  LSWQLEE50 pKa = 4.1  RR51 pKa = 11.84  GEE53 pKa = 4.63  SGTLHH58 pKa = 5.05  VQAYY62 pKa = 7.73  VQFAGNKK69 pKa = 8.86  RR70 pKa = 11.84  LASLRR75 pKa = 11.84  ALWPGCHH82 pKa = 6.21  AEE84 pKa = 4.12  VRR86 pKa = 11.84  RR87 pKa = 11.84  GSHH90 pKa = 4.89  EE91 pKa = 3.84  QAVEE95 pKa = 4.03  YY96 pKa = 9.9  TSKK99 pKa = 10.91  EE100 pKa = 3.8  EE101 pKa = 3.85  SRR103 pKa = 11.84  IDD105 pKa = 3.41  GGRR108 pKa = 11.84  HH109 pKa = 5.4  HH110 pKa = 6.65  EE111 pKa = 4.33  HH112 pKa = 6.47  GEE114 pKa = 3.69  ARR116 pKa = 11.84  NRR118 pKa = 11.84  PGRR121 pKa = 11.84  RR122 pKa = 11.84  RR123 pKa = 11.84  DD124 pKa = 3.57  LEE126 pKa = 4.3  AMPGNLVAQKK136 pKa = 10.75  LSGFPSPTVSVPFGMVTMVKK156 pKa = 10.13  RR157 pKa = 11.84  LLSLMSSMGGSHH169 pKa = 6.16  MAFCADD175 pKa = 3.82  CWTAIPSVWRR185 pKa = 11.84  RR186 pKa = 11.84  KK187 pKa = 10.68  DD188 pKa = 3.27  PVFLFWRR195 pKa = 11.84  SVLSSLPTSVLHH207 pKa = 7.24  DD208 pKa = 3.24  GTGRR212 pKa = 11.84  VFVLFVAVLVVNSVRR227 pKa = 11.84  CGRR230 pKa = 11.84  RR231 pKa = 11.84  RR232 pKa = 11.84  LWKK235 pKa = 8.91  XII237 pKa = 3.74   
 Molecular weight: 26.84 kDa
Isoelectric point according different methods: 
IPC2.protein.svr19  9.154 
IPC2_protein 8.756 
IPC_protein 8.873 
Toseland    9.516 
ProMoST     9.297 
Dawson      9.765 
Bjellqvist  9.575 
Wikipedia   9.926 
Rodwell     9.94 
Grimsley    9.794 
Solomon     9.867 
Lehninger   9.838 
Nozaki      9.794 
DTASelect   9.487 
Thurlkill   9.648 
EMBOSS      9.955 
Sillero     9.78 
Patrickios  7.644 
IPC_peptide 9.853 
IPC2_peptide  8.595 
IPC2.peptide.svr19  7.703 
  
 
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
 
       
     
    
      
        2 
 
        
        0
 
        
        2 
         
        537
 
        237
 
        300
 
        268.5
 
        29.59
 
                
     
  
 
    Amino acid frequency 
  
  
    
      
        Ala
 
        Cys
 
        Asp
 
        Glu
 
        Phe
 
        Gly
 
        His
 
        Ile
 
        Lys
 
        Leu
 
       
     
    
                 
        7.449 ± 1.109
1.304 ± 0.217
 
        4.283 ± 0.274
4.283 ± 0.917
 
        4.283 ± 0.441
10.056 ± 0.913
 
        2.235 ± 0.645
3.911 ± 1.256
       
        3.166 ± 0.12
8.007 ± 0.72
         
                
     
  
  
  
      
          
        Met
         
        Asn
 
        Gln
 
        Pro
         
        Arg
 
        Ser
 
        Thr
 
        Val
 
        Trp
 
        Tyr
  
       
     
    
                 
        2.421 ± 0.301
5.4 ± 1.382
 
        5.028 ± 0.02
3.911 ± 0.064
 
        8.752 ± 0.538
8.007 ± 0.72
 
        5.773 ± 0.878
7.263 ± 0.903
       
        2.048 ± 0.988
2.235 ± 0.547
         
                
     
  
  
  
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