Sewage-associated circular DNA virus-36 
Average proteome isoelectric point is 7.7 
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|A0A0B4UH70|A0A0B4UH70_9VIRU Replication-associated protein OS=Sewage-associated circular DNA virus-36 OX=1592103 PE=3 SV=1 
MM1 pKa = 7.48  ARR3 pKa = 11.84  TPRR6 pKa = 11.84  TNAQRR11 pKa = 11.84  YY12 pKa = 7.35  FLTYY16 pKa = 10.01  SQAHH20 pKa = 6.57  ALDD23 pKa = 4.21  IDD25 pKa = 3.91  DD26 pKa = 5.26  LANFLHH32 pKa = 6.82  ALAPSWLEE40 pKa = 3.5  IVQEE44 pKa = 3.95  NHH46 pKa = 5.83  QDD48 pKa = 3.62  DD49 pKa = 5.41  GIHH52 pKa = 5.18  YY53 pKa = 10.11  HH54 pKa = 6.3  VVLCFDD60 pKa = 3.73  EE61 pKa = 5.0  RR62 pKa = 11.84  FQRR65 pKa = 11.84  ALDD68 pKa = 3.86  VFDD71 pKa = 6.06  LDD73 pKa = 3.61  NHH75 pKa = 6.59  HH76 pKa = 7.27  PNIAIIKK83 pKa = 8.61  NASGDD88 pKa = 3.86  LNNRR92 pKa = 11.84  RR93 pKa = 11.84  HH94 pKa = 6.3  YY95 pKa = 9.9  IRR97 pKa = 11.84  KK98 pKa = 8.85  GADD101 pKa = 3.03  RR102 pKa = 11.84  PKK104 pKa = 10.6  EE105 pKa = 4.17  SEE107 pKa = 3.96  HH108 pKa = 6.77  TIADD112 pKa = 3.99  HH113 pKa = 7.43  KK114 pKa = 10.87  KK115 pKa = 9.59  GPCDD119 pKa = 3.85  YY120 pKa = 10.33  IIEE123 pKa = 4.99  PDD125 pKa = 3.44  TRR127 pKa = 11.84  GEE129 pKa = 4.09  VPPYY133 pKa = 8.56  STSAGRR139 pKa = 11.84  LNWGGILEE147 pKa = 4.37  SAKK150 pKa = 10.69  SEE152 pKa = 4.26  EE153 pKa = 4.1  EE154 pKa = 3.64  FLILVRR160 pKa = 11.84  VNQPTEE166 pKa = 3.46  WVLRR170 pKa = 11.84  NDD172 pKa = 5.18  SIVKK176 pKa = 9.1  YY177 pKa = 10.96  AKK179 pKa = 8.52  THH181 pKa = 5.15  YY182 pKa = 9.85  KK183 pKa = 10.01  AARR186 pKa = 11.84  EE187 pKa = 4.02  PEE189 pKa = 4.12  KK190 pKa = 10.9  VYY192 pKa = 10.47  PPEE195 pKa = 4.0  SWVVPPALDD204 pKa = 3.29  DD205 pKa = 3.54  WVAEE209 pKa = 4.25  VFSDD213 pKa = 3.46  VSTRR217 pKa = 11.84  GVLPRR222 pKa = 11.84  PDD224 pKa = 3.45  RR225 pKa = 11.84  PKK227 pKa = 10.3  TLLLVGPTRR236 pKa = 11.84  LGKK239 pKa = 9.74  SVWAKK244 pKa = 10.08  SLGRR248 pKa = 11.84  YY249 pKa = 9.67  SYY251 pKa = 10.1  MCGMWHH257 pKa = 6.6  SDD259 pKa = 3.38  EE260 pKa = 4.77  FDD262 pKa = 3.24  EE263 pKa = 4.94  SAQYY267 pKa = 10.96  LILDD271 pKa = 3.89  DD272 pKa = 4.87  FEE274 pKa = 6.74  FDD276 pKa = 3.69  FFHH279 pKa = 7.07  GMRR282 pKa = 11.84  KK283 pKa = 9.92  AIWGAQEE290 pKa = 4.37  VFTTTDD296 pKa = 2.3  KK297 pKa = 10.13  WRR299 pKa = 11.84  KK300 pKa = 8.86  GVARR304 pKa = 11.84  WGKK307 pKa = 6.62  PTIWICQEE315 pKa = 3.43  EE316 pKa = 4.96  HH317 pKa = 6.84  NPFTAVNRR325 pKa = 11.84  KK326 pKa = 7.7  TGLAVMDD333 pKa = 3.47  EE334 pKa = 4.61  TEE336 pKa = 4.26  RR337 pKa = 11.84  DD338 pKa = 3.32  WYY340 pKa = 10.35  KK341 pKa = 10.01  QNCVEE346 pKa = 4.07  VHH348 pKa = 6.07  VNTKK352 pKa = 10.13  FIRR355 pKa = 11.84  LRR357 pKa = 11.84  TCSGRR362 pKa = 11.84  SNRR365 pKa = 11.84  RR366 pKa = 11.84  DD367 pKa = 3.21  III369 pKa = 3.88   
 Molecular weight: 42.8 kDa
Isoelectric point according different methods: 
IPC2.protein.svr19  6.139 
IPC2_protein 6.033 
IPC_protein 6.135 
Toseland    6.532 
ProMoST     6.532 
Dawson      6.465 
Bjellqvist  6.44 
Wikipedia   6.478 
Rodwell     6.453 
Grimsley    6.693 
Solomon     6.465 
Lehninger   6.465 
Nozaki      6.737 
DTASelect   6.927 
Thurlkill   6.956 
EMBOSS      6.927 
Sillero     6.854 
Patrickios  4.329 
IPC_peptide 6.478 
IPC2_peptide  6.781 
IPC2.peptide.svr19  6.726 
 Protein with the highest isoelectric point: 
>tr|A0A0B4UH70|A0A0B4UH70_9VIRU Replication-associated protein OS=Sewage-associated circular DNA virus-36 OX=1592103 PE=3 SV=1 
MM1 pKa = 7.83  AYY3 pKa = 9.78  HH4 pKa = 6.95  RR5 pKa = 11.84  KK6 pKa = 6.8  TRR8 pKa = 11.84  RR9 pKa = 11.84  GHH11 pKa = 5.3  RR12 pKa = 11.84  SKK14 pKa = 11.08  RR15 pKa = 11.84  KK16 pKa = 6.49  TPKK19 pKa = 10.05  RR20 pKa = 11.84  LSQHH24 pKa = 4.48  MVRR27 pKa = 11.84  AIKK30 pKa = 10.31  AISQGEE36 pKa = 4.52  VEE38 pKa = 4.71  TKK40 pKa = 10.21  RR41 pKa = 11.84  YY42 pKa = 7.96  MVSTDD47 pKa = 2.43  ISTALTAAGYY57 pKa = 10.51  VSGNNAVIRR66 pKa = 11.84  RR67 pKa = 11.84  NFLSDD72 pKa = 4.17  LPRR75 pKa = 11.84  EE76 pKa = 4.33  SNTAVNSDD84 pKa = 2.96  ASFIGDD90 pKa = 3.55  QINLRR95 pKa = 11.84  GLRR98 pKa = 11.84  WSFHH102 pKa = 5.01  GSILPTVNPDD112 pKa = 2.28  AMYY115 pKa = 10.83  RR116 pKa = 11.84  FTVYY120 pKa = 10.27  RR121 pKa = 11.84  DD122 pKa = 3.14  SFYY125 pKa = 10.9  FAGTNGPGPGDD136 pKa = 3.79  RR137 pKa = 11.84  IFEE140 pKa = 4.3  QQQSTIPTWSMWNTQVTDD158 pKa = 3.09  IVFQRR163 pKa = 11.84  KK164 pKa = 7.09  FRR166 pKa = 11.84  MRR168 pKa = 11.84  VSSIGSEE175 pKa = 4.05  VLDD178 pKa = 3.49  KK179 pKa = 11.1  KK180 pKa = 10.85  FYY182 pKa = 10.18  IPLRR186 pKa = 11.84  RR187 pKa = 11.84  KK188 pKa = 8.26  ITSNSDD194 pKa = 2.74  EE195 pKa = 4.4  SLTINTTMGAIKK207 pKa = 10.0  GQQLYY212 pKa = 8.43  WVLEE216 pKa = 4.38  IYY218 pKa = 10.62  AQGQTNLMTGIAGTIDD234 pKa = 3.17  TVVYY238 pKa = 10.24  FKK240 pKa = 11.04  DD241 pKa = 3.22  AA242 pKa = 3.57   
 Molecular weight: 27.48 kDa
Isoelectric point according different methods: 
IPC2.protein.svr19  9.262 
IPC2_protein 9.633 
IPC_protein 10.131 
Toseland    10.233 
ProMoST     9.97 
Dawson      10.438 
Bjellqvist  10.131 
Wikipedia   10.643 
Rodwell     10.73 
Grimsley    10.526 
Solomon     10.482 
Lehninger   10.438 
Nozaki      10.204 
DTASelect   10.131 
Thurlkill   10.292 
EMBOSS      10.643 
Sillero     10.35 
Patrickios  10.321 
IPC_peptide 10.482 
IPC2_peptide  8.829 
IPC2.peptide.svr19  8.743 
  
 
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 
         
        611
 
        242
 
        369
 
        305.5
 
        35.14
 
                
     
  
 
    Amino acid frequency 
  
  
    
      
        Ala
 
        Cys
 
        Asp
 
        Glu
 
        Phe
 
        Gly
 
        His
 
        Ile
 
        Lys
 
        Leu
 
       
     
    
                 
        6.71 ± 0.317
0.982 ± 0.608
 
        6.547 ± 0.984
5.237 ± 1.453
 
        4.255 ± 0.18
5.892 ± 0.702
 
        3.11 ± 0.902
6.219 ± 0.755
       
        5.237 ± 0.173
6.383 ± 0.626
         
                
     
  
  
  
      
          
        Met
         
        Asn
 
        Gln
 
        Pro
         
        Arg
 
        Ser
 
        Thr
 
        Val
 
        Trp
 
        Tyr
  
       
     
    
                 
        2.128 ± 0.73
4.583 ± 0.233
 
        4.583 ± 0.791
3.601 ± 0.841
 
        8.183 ± 0.306
6.547 ± 1.32
 
        6.874 ± 1.373
6.547 ± 0.216
       
        2.619 ± 0.598
3.764 ± 0.228
         
                
     
  
  
  
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