Shigella phage pSb-1 
Average proteome isoelectric point is 6.53 
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 103 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|V5UPK1|V5UPK1_9CAUD Uncharacterized protein OS=Shigella phage pSb-1 OX=1414738 GN=psb1_0028 PE=4 SV=1MM1 pKa = 7.23  NAHH4 pKa = 6.2  TPFDD8 pKa = 4.34  AKK10 pKa = 10.72  QDD12 pKa = 3.5  WTNPYY17 pKa = 9.09  CQNSSNDD24 pKa = 3.39  PMVDD28 pKa = 3.19  ALLGNAYY35 pKa = 9.9  HH36 pKa = 6.23  VVRR39 pKa = 11.84  TVYY42 pKa = 10.84  CNLGNLKK49 pKa = 10.53  LIYY52 pKa = 10.49  DD53 pKa = 4.42  FLNKK57 pKa = 10.16  YY58 pKa = 10.64  GMVLGVQSEE67 pKa = 4.95  TEE69 pKa = 4.11  LKK71 pKa = 10.53  AIPTSASYY79 pKa = 10.84  VRR81 pKa = 11.84  LYY83 pKa = 11.38  GFDD86 pKa = 3.48  NTNKK90 pKa = 10.13  RR91 pKa = 11.84  VVTDD95 pKa = 3.3  YY96 pKa = 11.33  LYY98 pKa = 11.26  VEE100 pKa = 4.84  GDD102 pKa = 3.35  RR103 pKa = 11.84  TGVIPDD109 pKa = 4.44  DD110 pKa = 4.34  PSATGSWILVATSNSDD126 pKa = 3.07  SGGDD130 pKa = 3.64  DD131 pKa = 3.9  GEE133 pKa = 5.02  GKK135 pKa = 10.43  ASPPYY140 pKa = 10.19  IPYY143 pKa = 10.25  SYY145 pKa = 11.28  NNGSAIGGEE154 pKa = 4.21  TTIPVPAGTVGVPMIVIDD172 pKa = 4.94  GYY174 pKa = 9.69  TNLVGYY180 pKa = 9.87  GFTYY184 pKa = 10.5  DD185 pKa = 3.94  ASTLTVTLAQPLEE198 pKa = 4.64  PGDD201 pKa = 3.99  EE202 pKa = 4.0  VHH204 pKa = 7.05  LFLTGTPAVPDD215 pKa = 3.82  NPNVSDD221 pKa = 3.47  WVQINWLYY229 pKa = 10.72  NGGYY233 pKa = 10.39  ASGGEE238 pKa = 3.96  QVIAIPYY245 pKa = 7.81  TFEE248 pKa = 4.11  SVPAIYY254 pKa = 10.52  KK255 pKa = 10.29  NGEE258 pKa = 3.69  RR259 pKa = 11.84  YY260 pKa = 9.54  YY261 pKa = 11.32  AGLADD266 pKa = 4.07  KK267 pKa = 10.84  SYY269 pKa = 11.59  AVDD272 pKa = 3.37  AANQRR277 pKa = 11.84  ILLTEE282 pKa = 4.13  PLATNDD288 pKa = 3.85  RR289 pKa = 11.84  LIIQIGGEE297 pKa = 4.23  STTLIMSDD305 pKa = 3.03  RR306 pKa = 11.84  TVQEE310 pKa = 4.1  VARR313 pKa = 11.84  SANVHH318 pKa = 5.93  EE319 pKa = 4.7  NDD321 pKa = 4.83  VILSTNTTQYY331 pKa = 11.07  LNGMKK336 pKa = 10.2  VIYY339 pKa = 10.22  DD340 pKa = 3.41  VVGQKK345 pKa = 9.86  IYY347 pKa = 11.04  GLPTLPTNVYY357 pKa = 9.87  INSVSNGQLTYY368 pKa = 10.85  SPGNITVDD376 pKa = 4.32  LLPMPSEE383 pKa = 4.16  ALSALEE389 pKa = 3.83  TLEE392 pKa = 4.61  NSLNSPLGFTNIGRR406 pKa = 11.84  VQSFAALRR414 pKa = 11.84  TLVPPSAGARR424 pKa = 11.84  VLLSGYY430 pKa = 9.98  YY431 pKa = 10.39  DD432 pKa = 3.53  NSDD435 pKa = 3.32  TGGGEE440 pKa = 4.45  FIARR444 pKa = 11.84  STTGMSEE451 pKa = 4.03  VPDD454 pKa = 4.37  DD455 pKa = 4.72  DD456 pKa = 5.41  GGVIATVNSNWYY468 pKa = 8.09  WEE470 pKa = 4.24  RR471 pKa = 11.84  VDD473 pKa = 3.73  TNNATVEE480 pKa = 4.09  DD481 pKa = 5.26  FGAISYY487 pKa = 9.23  TGDD490 pKa = 3.61  DD491 pKa = 3.5  TTGIADD497 pKa = 3.95  SSDD500 pKa = 2.64  AFQRR504 pKa = 11.84  MFNSLNRR511 pKa = 11.84  IFSADD516 pKa = 2.96  SSKK519 pKa = 10.97  RR520 pKa = 11.84  FVIDD524 pKa = 3.8  APILLKK530 pKa = 10.99  VPTLKK535 pKa = 10.77  LIYY538 pKa = 9.99  QGVVV542 pKa = 2.56  
 58.48 kDa
Isoelectric point according different methods: 
IPC2.protein.svr19  3.958 
IPC2_protein 4.202 
IPC_protein 4.202 
Toseland    3.999 
ProMoST     4.342 
Dawson      4.177 
Bjellqvist  4.329 
Wikipedia   4.101 
Rodwell     4.024 
Grimsley    3.897 
Solomon     4.177 
Lehninger   4.139 
Nozaki      4.291 
DTASelect   4.533 
Thurlkill   4.024 
EMBOSS      4.113 
Sillero     4.317 
Patrickios  1.062 
IPC_peptide 4.177 
IPC2_peptide  4.304 
IPC2.peptide.svr19  4.199 
 Protein with the highest isoelectric point: 
>tr|V5UQG1|V5UQG1_9CAUD Uncharacterized protein OS=Shigella phage pSb-1 OX=1414738 GN=psb1_0020 PE=4 SV=1MM1 pKa = 7.17  VRR3 pKa = 11.84  RR4 pKa = 11.84  LKK6 pKa = 10.73  RR7 pKa = 11.84  RR8 pKa = 11.84  VEE10 pKa = 4.15  LVPNWKK16 pKa = 9.95  RR17 pKa = 11.84  CWKK20 pKa = 8.21  WASIQISTFGLIMFSAIDD38 pKa = 4.26  IIQPMLTGLPRR49 pKa = 11.84  HH50 pKa = 6.0  ILEE53 pKa = 5.57  DD54 pKa = 3.56  IPHH57 pKa = 7.03  GSNIAIALFALNIVGRR73 pKa = 11.84  LIRR76 pKa = 11.84  FRR78 pKa = 11.84  PKK80 pKa = 10.29  EE81 pKa = 4.06  DD82 pKa = 3.18  SHH84 pKa = 7.49  EE85 pKa = 4.23  SS86 pKa = 3.3  
 10.02 kDa
Isoelectric point according different methods: 
IPC2.protein.svr19  9.313 
IPC2_protein 9.502 
IPC_protein 10.321 
Toseland    11.023 
ProMoST     10.965 
Dawson      11.038 
Bjellqvist  10.818 
Wikipedia   11.316 
Rodwell     11.155 
Grimsley    11.067 
Solomon     11.316 
Lehninger   11.272 
Nozaki      11.008 
DTASelect   10.804 
Thurlkill   10.994 
EMBOSS      11.447 
Sillero     10.994 
Patrickios  10.95 
IPC_peptide 11.33 
IPC2_peptide  10.014 
IPC2.peptide.svr19  9.058 
 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
 
     
    
      
        103 
0
103 
21918
37
1453
212.8
23.71
          
     
  
 
    Amino acid frequency 
  
  
    
      
        Ala
Cys
Asp
Glu
Phe
Gly
His
Ile
Lys
Leu
 
     
    
                 
        8.491 ± 0.511
0.903 ± 0.119
5.876 ± 0.139
6.314 ± 0.234
3.55 ± 0.142
6.575 ± 0.238
1.752 ± 0.127
5.886 ± 0.18
6.424 ± 0.281
8.258 ± 0.205
          
     
  
  
  
      
          
        Met
Asn
Gln
Pro
Arg
Ser
Thr
Val
Trp
Tyr
 
     
    
                 
        2.961 ± 0.114
5.717 ± 0.146
4.147 ± 0.141
4.033 ± 0.245
4.581 ± 0.193
6.31 ± 0.209
6.47 ± 0.251
6.912 ± 0.21
1.177 ± 0.093
3.664 ± 0.198
          
     
  
  
  
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