Leptolyngbya sp. Heron Island J 
Average proteome isoelectric point is 6.09 
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 7108 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|U9VW03|U9VW03_9CYAN Alpha-amylase alpha-mannosidase OS=Leptolyngbya sp. Heron Island J OX=1385935 GN=N836_05715 PE=4 SV=1 
MM1 pKa = 7.06  TNLWKK6 pKa = 10.64  AVMAGPLLLGAVFSSSNIAAEE27 pKa = 3.95  AAEE30 pKa = 4.46  TVSVDD35 pKa = 3.26  ALSNSDD41 pKa = 4.5  SIQLAQVTSVSEE53 pKa = 4.16  LSDD56 pKa = 3.5  VLPSDD61 pKa = 3.25  WAYY64 pKa = 9.14  TALQRR69 pKa = 11.84  LVEE72 pKa = 4.32  EE73 pKa = 4.49  YY74 pKa = 11.08  GCIEE78 pKa = 5.0  GYY80 pKa = 9.42  PDD82 pKa = 3.41  RR83 pKa = 11.84  SFRR86 pKa = 11.84  GNRR89 pKa = 11.84  AMTRR93 pKa = 11.84  YY94 pKa = 9.34  EE95 pKa = 3.88  FAAGLNACLDD105 pKa = 3.87  VVVQLIDD112 pKa = 4.27  ASPDD116 pKa = 3.37  DD117 pKa = 4.7  LDD119 pKa = 3.99  TIRR122 pKa = 11.84  RR123 pKa = 11.84  LQEE126 pKa = 3.36  EE127 pKa = 4.63  FAAEE131 pKa = 3.85  LATIRR136 pKa = 11.84  GRR138 pKa = 11.84  VDD140 pKa = 2.9  TLEE143 pKa = 5.27  ADD145 pKa = 3.89  VAEE148 pKa = 4.62  LEE150 pKa = 4.39  ANQFSTTTKK159 pKa = 10.81  LKK161 pKa = 10.31  GQLDD165 pKa = 3.64  AHH167 pKa = 6.23  LVVPFDD173 pKa = 4.0  GPGDD177 pKa = 3.7  LDD179 pKa = 3.83  EE180 pKa = 5.01  PTFQYY185 pKa = 8.87  RR186 pKa = 11.84  TRR188 pKa = 11.84  LNLDD192 pKa = 3.23  TSFTGEE198 pKa = 3.71  DD199 pKa = 3.16  RR200 pKa = 11.84  LRR202 pKa = 11.84  TRR204 pKa = 11.84  LQFGDD209 pKa = 3.89  ANNALSGAPGGFAAAGSGGFVDD231 pKa = 5.76  DD232 pKa = 4.16  VRR234 pKa = 11.84  IDD236 pKa = 3.46  DD237 pKa = 4.14  VYY239 pKa = 11.06  YY240 pKa = 10.62  SFPIGSRR247 pKa = 11.84  VSAIIAANSIVSDD260 pKa = 4.11  DD261 pKa = 4.19  FVTSTIVPFDD271 pKa = 3.97  GPSVADD277 pKa = 3.23  YY278 pKa = 9.9  GGPMFYY284 pKa = 10.67  DD285 pKa = 3.3  QLGLGGQSFAAGFNIALTDD304 pKa = 4.23  SLILDD309 pKa = 4.12  AGYY312 pKa = 8.24  ATSQGQDD319 pKa = 2.77  ADD321 pKa = 3.58  KK322 pKa = 11.51  GIFDD326 pKa = 3.81  EE327 pKa = 5.09  YY328 pKa = 11.09  EE329 pKa = 3.86  YY330 pKa = 11.09  LVQLNYY336 pKa = 10.87  LSDD339 pKa = 3.89  GLIDD343 pKa = 3.86  AAVTYY348 pKa = 10.11  MDD350 pKa = 4.84  GEE352 pKa = 4.51  SGDD355 pKa = 4.09  GNGADD360 pKa = 4.73  GIIAGLLSLDD370 pKa = 3.62  FGGFQIGGYY379 pKa = 9.77  YY380 pKa = 10.23  ADD382 pKa = 3.78  QDD384 pKa = 4.44  GDD386 pKa = 4.02  EE387 pKa = 4.18  SWQAGVAVSNLLGTGNAAGVYY408 pKa = 9.33  YY409 pKa = 10.94  VEE411 pKa = 5.64  DD412 pKa = 4.47  FNDD415 pKa = 4.01  DD416 pKa = 3.57  EE417 pKa = 4.44  TAEE420 pKa = 4.87  AYY422 pKa = 10.87  YY423 pKa = 11.17  SMQINEE429 pKa = 4.41  YY430 pKa = 7.26  WTLTPAVIYY439 pKa = 9.81  GQFDD443 pKa = 3.51  ATGDD447 pKa = 3.84  EE448 pKa = 4.26  SWYY451 pKa = 10.32  GAIRR455 pKa = 11.84  SRR457 pKa = 11.84  FKK459 pKa = 10.92  FF460 pKa = 3.48   
 Molecular weight: 49.36 kDa
Isoelectric point according different methods: 
IPC2.protein.svr19  3.68 
IPC2_protein 3.694 
IPC_protein 3.745 
Toseland    3.503 
ProMoST     3.91 
Dawson      3.732 
Bjellqvist  3.884 
Wikipedia   3.681 
Rodwell     3.554 
Grimsley    3.414 
Solomon     3.732 
Lehninger   3.681 
Nozaki      3.846 
DTASelect   4.113 
Thurlkill   3.554 
EMBOSS      3.681 
Sillero     3.859 
Patrickios  1.354 
IPC_peptide 3.719 
IPC2_peptide  3.834 
IPC2.peptide.svr19  3.776 
 Protein with the highest isoelectric point: 
>tr|U9W736|U9W736_9CYAN Uncharacterized protein OS=Leptolyngbya sp. Heron Island J OX=1385935 GN=N836_30615 PE=3 SV=1 
MM1 pKa = 7.57  ANKK4 pKa = 9.85  IYY6 pKa = 9.76  PLKK9 pKa = 10.42  PSYY12 pKa = 7.69  TTSPTISPPANVFNRR27 pKa = 11.84  IISRR31 pKa = 11.84  RR32 pKa = 11.84  LKK34 pKa = 10.6  AFCCSRR40 pKa = 11.84  LSRR43 pKa = 11.84  FVLLSLVLLITFLVSLALGSVAIPPSEE70 pKa = 4.09  VMTVLLGGTATKK82 pKa = 9.71  PAWQEE87 pKa = 3.55  IILTFRR93 pKa = 11.84  LPRR96 pKa = 11.84  SLTALAAGSALAISGLQLQALFRR119 pKa = 11.84  NALAGPSVLGINAGASLGAALVVLTGGGIGWWGQLSVVGAASGGAAIAMLLVLLMARR176 pKa = 11.84  QVRR179 pKa = 11.84  SSLALLIFGLMLGYY193 pKa = 8.81  VTTALVTILLHH204 pKa = 6.85  FSRR207 pKa = 11.84  LEE209 pKa = 3.64  QTLAYY214 pKa = 10.39  LNWTFGSFNGVTWQQMPILLSVVTMGLVIAQLTCKK249 pKa = 10.05  PLNLLLLGEE258 pKa = 4.37  EE259 pKa = 4.33  QAISLGLSVTVVRR272 pKa = 11.84  CYY274 pKa = 10.97  LIFSASLLAGSITAFCGPIAFLGVAVPHH302 pKa = 6.93  LGRR305 pKa = 11.84  SLFRR309 pKa = 11.84  TQDD312 pKa = 2.91  HH313 pKa = 7.18  RR314 pKa = 11.84  ILVPVVAFLGGWLALVADD332 pKa = 5.62  SIAQVPGNQTVLPLNAVMALLGAPVLIWLMLKK364 pKa = 10.05  QGRR367 pKa = 11.84  QQII370 pKa = 3.83   
 Molecular weight: 39.06 kDa
Isoelectric point according different methods: 
IPC2.protein.svr19  9.345 
IPC2_protein 9.794 
IPC_protein 10.701 
Toseland    10.657 
ProMoST     10.438 
Dawson      10.789 
Bjellqvist  10.555 
Wikipedia   11.023 
Rodwell     10.921 
Grimsley    10.847 
Solomon     10.906 
Lehninger   10.877 
Nozaki      10.687 
DTASelect   10.54 
Thurlkill   10.687 
EMBOSS      11.082 
Sillero     10.73 
Patrickios  10.643 
IPC_peptide 10.921 
IPC2_peptide  9.853 
IPC2.peptide.svr19  8.351 
  
 
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
 
       
     
    
      
        7108 
 
        
        0
 
        
        7108 
         
        2230696
 
        29
 
        4624
 
        313.8
 
        34.79
 
                
     
  
 
    Amino acid frequency 
  
  
    
      
        Ala
 
        Cys
 
        Asp
 
        Glu
 
        Phe
 
        Gly
 
        His
 
        Ile
 
        Lys
 
        Leu
 
       
     
    
                 
        8.963 ± 0.034
0.972 ± 0.011
 
        5.496 ± 0.03
5.828 ± 0.029
 
        3.808 ± 0.021
6.876 ± 0.038
 
        2.063 ± 0.016
5.999 ± 0.022
       
        3.669 ± 0.03
11.237 ± 0.039
         
                
     
  
  
  
      
          
        Met
         
        Asn
 
        Gln
 
        Pro
         
        Arg
 
        Ser
 
        Thr
 
        Val
 
        Trp
 
        Tyr
  
       
     
    
                 
        2.008 ± 0.015
3.729 ± 0.022
 
        4.864 ± 0.022
5.518 ± 0.028
 
        5.421 ± 0.022
6.374 ± 0.026
 
        5.966 ± 0.026
6.79 ± 0.023
       
        1.516 ± 0.017
2.902 ± 0.018
         
                
     
  
  
  
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