Beihai sobemo-like virus 27 
Average proteome isoelectric point is 7.4 
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|A0A1L3KE72|A0A1L3KE72_9VIRU RNA-directed RNA polymerase OS=Beihai sobemo-like virus 27 OX=1922699 PE=4 SV=1 
MM1 pKa = 7.62  KK2 pKa = 10.44  SFAVQSRR9 pKa = 11.84  TAHH12 pKa = 5.76  IVRR15 pKa = 11.84  EE16 pKa = 4.2  RR17 pKa = 11.84  TISPTDD23 pKa = 3.31  EE24 pKa = 4.1  EE25 pKa = 4.94  LEE27 pKa = 4.7  HH28 pKa = 7.91  ILYY31 pKa = 9.87  HH32 pKa = 6.83  AEE34 pKa = 3.83  QALAPAKK41 pKa = 9.71  WKK43 pKa = 10.77  LPSNWNSRR51 pKa = 11.84  TAFEE55 pKa = 4.21  AALAEE60 pKa = 4.67  LDD62 pKa = 3.77  WQSSPGYY69 pKa = 8.74  PLLRR73 pKa = 11.84  EE74 pKa = 4.28  APTIGDD80 pKa = 3.37  WLLIKK85 pKa = 9.9  GTLEE89 pKa = 3.96  RR90 pKa = 11.84  DD91 pKa = 3.19  PSKK94 pKa = 11.26  VEE96 pKa = 4.07  RR97 pKa = 11.84  LWDD100 pKa = 3.57  MVQKK104 pKa = 10.28  VLKK107 pKa = 10.49  GEE109 pKa = 4.49  YY110 pKa = 7.59  IHH112 pKa = 6.06  YY113 pKa = 8.82  WRR115 pKa = 11.84  VFIKK119 pKa = 10.51  SEE121 pKa = 3.49  PHH123 pKa = 5.86  KK124 pKa = 10.4  RR125 pKa = 11.84  SKK127 pKa = 10.84  ALEE130 pKa = 4.2  GRR132 pKa = 11.84  WRR134 pKa = 11.84  LITAASLPVTVAWMMTFKK152 pKa = 11.02  KK153 pKa = 10.83  LNDD156 pKa = 3.85  RR157 pKa = 11.84  LSHH160 pKa = 6.31  YY161 pKa = 10.56  DD162 pKa = 2.97  AALPVQQGYY171 pKa = 7.34  VWCSGGWKK179 pKa = 9.58  NFKK182 pKa = 10.3  RR183 pKa = 11.84  RR184 pKa = 11.84  IEE186 pKa = 3.97  QDD188 pKa = 2.89  GLTISVDD195 pKa = 3.04  KK196 pKa = 11.04  KK197 pKa = 9.77  AWDD200 pKa = 3.15  WGAPGWAFEE209 pKa = 4.49  ADD211 pKa = 3.32  LEE213 pKa = 4.58  LRR215 pKa = 11.84  TRR217 pKa = 11.84  LCLNPSPEE225 pKa = 3.73  WHH227 pKa = 6.46  RR228 pKa = 11.84  VATLLYY234 pKa = 10.5  ADD236 pKa = 5.05  AFQTAKK242 pKa = 10.92  LLLPNGIVYY251 pKa = 7.87  EE252 pKa = 4.14  QQFHH256 pKa = 6.4  GFMKK260 pKa = 10.32  SGCFNTISTNSNCQILLHH278 pKa = 5.85  YY279 pKa = 9.6  LAEE282 pKa = 4.22  YY283 pKa = 10.04  RR284 pKa = 11.84  WAKK287 pKa = 10.75  AEE289 pKa = 3.91  GVSIKK294 pKa = 9.89  EE295 pKa = 3.7  HH296 pKa = 6.17  SKK298 pKa = 10.51  ILACGDD304 pKa = 3.37  DD305 pKa = 3.86  TLQAFYY311 pKa = 10.49  TPLYY315 pKa = 10.97  GEE317 pKa = 4.9  LLEE320 pKa = 4.85  QAGCTVKK327 pKa = 10.52  EE328 pKa = 4.01  AAQNTDD334 pKa = 3.49  FMGYY338 pKa = 10.19  NYY340 pKa = 10.02  DD341 pKa = 3.92  GPPEE345 pKa = 3.82  PMYY348 pKa = 10.24  FAKK351 pKa = 10.65  HH352 pKa = 4.96  LVKK355 pKa = 10.41  FALQKK360 pKa = 9.9  PALRR364 pKa = 11.84  PEE366 pKa = 4.2  TLDD369 pKa = 2.92  SYY371 pKa = 10.94  MRR373 pKa = 11.84  MYY375 pKa = 9.56  ATSEE379 pKa = 3.87  SRR381 pKa = 11.84  HH382 pKa = 4.91  FWRR385 pKa = 11.84  AVANEE390 pKa = 4.08  LEE392 pKa = 4.17  IHH394 pKa = 6.35  LMSDD398 pKa = 3.21  SYY400 pKa = 9.67  YY401 pKa = 11.09  ARR403 pKa = 11.84  WANVPEE409 pKa = 4.24  PP410 pKa = 3.84   
 Molecular weight: 47.31 kDa
Isoelectric point according different methods: 
IPC2.protein.svr19  6.587 
IPC2_protein 6.649 
IPC_protein 6.781 
Toseland    6.868 
ProMoST     7.307 
Dawson      7.278 
Bjellqvist  7.205 
Wikipedia   7.263 
Rodwell     7.278 
Grimsley    6.985 
Solomon     7.322 
Lehninger   7.337 
Nozaki      7.527 
DTASelect   7.571 
Thurlkill   7.6 
EMBOSS      7.629 
Sillero     7.688 
Patrickios  4.177 
IPC_peptide 7.337 
IPC2_peptide  7.117 
IPC2.peptide.svr19  7.013 
 Protein with the highest isoelectric point: 
>tr|A0A1L3KE72|A0A1L3KE72_9VIRU RNA-directed RNA polymerase OS=Beihai sobemo-like virus 27 OX=1922699 PE=4 SV=1 
MM1 pKa = 7.4  EE2 pKa = 4.79  FVAKK6 pKa = 10.39  ARR8 pKa = 11.84  AFLARR13 pKa = 11.84  MCLYY17 pKa = 10.22  FVGFVVTITNEE28 pKa = 3.72  HH29 pKa = 6.07  LVALFGAILRR39 pKa = 11.84  AVVALFEE46 pKa = 4.29  CSMRR50 pKa = 11.84  GVHH53 pKa = 6.35  HH54 pKa = 6.27  MVGALLPEE62 pKa = 4.49  ALNPPNRR69 pKa = 11.84  KK70 pKa = 9.03  NDD72 pKa = 3.65  LLRR75 pKa = 11.84  QYY77 pKa = 10.13  MEE79 pKa = 4.38  ANEE82 pKa = 3.99  AEE84 pKa = 4.33  EE85 pKa = 4.38  RR86 pKa = 11.84  SRR88 pKa = 11.84  SATDD92 pKa = 3.76  IIYY95 pKa = 7.62  GTSEE99 pKa = 3.69  LRR101 pKa = 11.84  EE102 pKa = 3.83  LHH104 pKa = 6.48  MDD106 pKa = 3.97  LGYY109 pKa = 10.51  QAGFQHH115 pKa = 6.79  ASEE118 pKa = 5.12  MIISMLALGCLAAWLFSNMPSMNGIGARR146 pKa = 11.84  LRR148 pKa = 11.84  GCLKK152 pKa = 9.7  WRR154 pKa = 11.84  PTKK157 pKa = 10.36  AVRR160 pKa = 11.84  LTDD163 pKa = 3.44  VDD165 pKa = 3.74  AKK167 pKa = 10.71  AAAFATILPEE177 pKa = 3.87  TAIPGSNEE185 pKa = 3.27  LSMPMTKK192 pKa = 9.94  SQVVMFLRR200 pKa = 11.84  EE201 pKa = 3.3  TDD203 pKa = 3.51  AQGKK207 pKa = 8.73  NVDD210 pKa = 3.7  TVLGNGIRR218 pKa = 11.84  FTATRR223 pKa = 11.84  LVFPSHH229 pKa = 6.87  LGCEE233 pKa = 4.44  SFGEE237 pKa = 4.3  VWLSSKK243 pKa = 11.0  NGGEE247 pKa = 4.08  PFCLKK252 pKa = 10.69  LGLKK256 pKa = 10.14  GDD258 pKa = 3.98  YY259 pKa = 10.02  QAVAFSNDD267 pKa = 2.88  MSFVEE272 pKa = 5.4  LPTTVWAGLGVKK284 pKa = 9.55  VATIGALSTVGDD296 pKa = 3.75  NVTVVGARR304 pKa = 11.84  GKK306 pKa = 9.29  GTTGVLIAGYY316 pKa = 10.74  RR317 pKa = 11.84  MGDD320 pKa = 3.41  VIYY323 pKa = 11.07  NSTTLSGYY331 pKa = 10.33  SGAPYY336 pKa = 10.1  HH337 pKa = 6.53  SGPMTLGVHH346 pKa = 4.82  THH348 pKa = 6.44  GGKK351 pKa = 10.03  QNGGVAATYY360 pKa = 10.1  IRR362 pKa = 11.84  ARR364 pKa = 11.84  LAIYY368 pKa = 9.68  DD369 pKa = 4.09  ALEE372 pKa = 4.09  LDD374 pKa = 3.79  IVAEE378 pKa = 4.03  SSEE381 pKa = 4.02  DD382 pKa = 3.5  FMRR385 pKa = 11.84  KK386 pKa = 9.11  VFDD389 pKa = 3.45  SGKK392 pKa = 8.8  RR393 pKa = 11.84  AHH395 pKa = 6.22  RR396 pKa = 11.84  TEE398 pKa = 4.33  DD399 pKa = 3.13  FGDD402 pKa = 3.85  FMVVEE407 pKa = 4.6  YY408 pKa = 10.39  HH409 pKa = 6.59  GNHH412 pKa = 5.72  HH413 pKa = 5.88  TVSKK417 pKa = 10.53  QLYY420 pKa = 9.9  DD421 pKa = 4.03  RR422 pKa = 11.84  IKK424 pKa = 9.89  SQTYY428 pKa = 9.48  HH429 pKa = 7.18  PSHH432 pKa = 7.02  LSRR435 pKa = 11.84  RR436 pKa = 11.84  TGLSSSEE443 pKa = 3.68  DD444 pKa = 3.3  SEE446 pKa = 4.46  YY447 pKa = 11.27  DD448 pKa = 3.39  SEE450 pKa = 5.96  SEE452 pKa = 3.95  MDD454 pKa = 4.35  PPPQLEE460 pKa = 4.22  SALNGPVATMAEE472 pKa = 4.3  PAVPGYY478 pKa = 10.7  DD479 pKa = 3.98  DD480 pKa = 5.89  GSGLPANIPSSKK492 pKa = 10.09  PPSAPPKK499 pKa = 9.44  KK500 pKa = 10.01  KK501 pKa = 9.97  KK502 pKa = 10.04  SKK504 pKa = 10.58  KK505 pKa = 10.32  SGDD508 pKa = 3.57  SQRR511 pKa = 11.84  ATEE514 pKa = 4.47  RR515 pKa = 11.84  PTTSRR520 pKa = 11.84  KK521 pKa = 9.23  SEE523 pKa = 3.95  KK524 pKa = 9.28  TSSGGSQSRR533 pKa = 11.84  KK534 pKa = 9.35  SNPSRR539 pKa = 11.84  HH540 pKa = 5.77  KK541 pKa = 10.48  AVKK544 pKa = 9.77  RR545 pKa = 11.84  DD546 pKa = 2.86  IMTKK550 pKa = 10.46  FSEE553 pKa = 4.2  LTPTHH558 pKa = 7.07  RR559 pKa = 11.84  ARR561 pKa = 11.84  LLTQMAQSLAKK572 pKa = 10.03  PP573 pKa = 3.71   
 Molecular weight: 62.19 kDa
Isoelectric point according different methods: 
IPC2.protein.svr19  8.214 
IPC2_protein 8.214 
IPC_protein 8.112 
Toseland    8.58 
ProMoST     8.668 
Dawson      9.004 
Bjellqvist  8.975 
Wikipedia   9.107 
Rodwell     9.121 
Grimsley    8.843 
Solomon     9.092 
Lehninger   9.063 
Nozaki      9.092 
DTASelect   8.843 
Thurlkill   8.946 
EMBOSS      9.151 
Sillero     9.151 
Patrickios  4.698 
IPC_peptide 9.077 
IPC2_peptide  7.702 
IPC2.peptide.svr19  7.661 
  
 
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 
         
        983
 
        410
 
        573
 
        491.5
 
        54.75
 
                
     
  
 
    Amino acid frequency 
  
  
    
      
        Ala
 
        Cys
 
        Asp
 
        Glu
 
        Phe
 
        Gly
 
        His
 
        Ile
 
        Lys
 
        Leu
 
       
     
    
                 
        9.664 ± 0.223
1.221 ± 0.161
 
        4.374 ± 0.011
6.307 ± 0.672
 
        3.662 ± 0.002
7.121 ± 1.492
 
        3.052 ± 0.079
3.561 ± 0.227
       
        5.697 ± 0.267
9.461 ± 0.683
         
                
     
  
  
  
      
          
        Met
         
        Asn
 
        Gln
 
        Pro
         
        Arg
 
        Ser
 
        Thr
 
        Val
 
        Trp
 
        Tyr
  
       
     
    
                 
        3.255 ± 0.543
3.255 ± 0.056
 
        5.29 ± 0.05
2.95 ± 0.471
 
        5.799 ± 0.126
7.935 ± 1.222
 
        6.002 ± 0.585
5.697 ± 0.869
       
        2.136 ± 1.337
3.561 ± 0.714
         
                
     
  
  
  
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