Natronospirillum operosum 
Average proteome isoelectric point is 6.02 
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 3948 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|A0A4Z0WC45|A0A4Z0WC45_9GAMM DMT family transporter OS=Natronospirillum operosum OX=2759953 GN=E4656_15490 PE=4 SV=1MM1 pKa = 7.4  SPCTHH6 pKa = 6.74  KK7 pKa = 10.75  PLLSHH12 pKa = 7.04  LLVLLAVTALAACNPSTEE30 pKa = 4.48  SGGNSDD36 pKa = 4.72  NGNGDD41 pKa = 3.3  GGGGNGGNDD50 pKa = 3.28  NNGDD54 pKa = 4.11  LVEE57 pKa = 4.8  LDD59 pKa = 3.69  YY60 pKa = 11.69  GVGFVLVMDD69 pKa = 5.09  PAPNQIALRR78 pKa = 11.84  GYY80 pKa = 8.46  GTGQIPEE87 pKa = 4.28  TTRR90 pKa = 11.84  LAVQVLDD97 pKa = 3.85  NDD99 pKa = 4.24  LNPVAGHH106 pKa = 6.65  DD107 pKa = 3.54  VSFAITDD114 pKa = 3.64  STGGPEE120 pKa = 4.12  LTRR123 pKa = 11.84  DD124 pKa = 3.49  SATTGSDD131 pKa = 3.11  GSASTILRR139 pKa = 11.84  SGTVQGTTQVEE150 pKa = 4.34  VSMDD154 pKa = 3.7  LLDD157 pKa = 4.15  SNGNVIEE164 pKa = 4.04  QDD166 pKa = 3.34  VHH168 pKa = 6.47  VATTQPVSMHH178 pKa = 5.78  TAAPVTDD185 pKa = 3.88  GMSLSADD192 pKa = 3.44  VFNPEE197 pKa = 3.96  GYY199 pKa = 9.72  DD200 pKa = 3.47  YY201 pKa = 11.61  NGIPVQVTVHH211 pKa = 6.48  LGDD214 pKa = 3.21  IHH216 pKa = 7.18  RR217 pKa = 11.84  NPVADD222 pKa = 3.71  GTQVNFLASTGLVDD236 pKa = 5.37  PVCTTDD242 pKa = 5.03  NGACTIEE249 pKa = 4.2  WRR251 pKa = 11.84  SAHH254 pKa = 6.05  PRR256 pKa = 11.84  GDD258 pKa = 3.14  GRR260 pKa = 11.84  VDD262 pKa = 2.9  ILARR266 pKa = 11.84  TNGNDD271 pKa = 3.72  AFVDD275 pKa = 3.7  TNGNSRR281 pKa = 11.84  FDD283 pKa = 3.54  LGEE286 pKa = 3.97  SYY288 pKa = 10.56  EE289 pKa = 4.21  PQGEE293 pKa = 4.16  PFVDD297 pKa = 3.87  TEE299 pKa = 4.43  GTGQFDD305 pKa = 3.64  PGDD308 pKa = 4.08  FFWDD312 pKa = 3.99  LSGTGDD318 pKa = 3.97  YY319 pKa = 10.66  TPADD323 pKa = 3.89  PGAHH327 pKa = 5.68  YY328 pKa = 10.36  KK329 pKa = 10.99  GIGCTEE335 pKa = 4.19  DD336 pKa = 3.69  ALEE339 pKa = 5.16  HH340 pKa = 5.23  GHH342 pKa = 6.3  CDD344 pKa = 2.97  EE345 pKa = 4.98  RR346 pKa = 11.84  AVVFNNIVLVASGSDD361 pKa = 3.29  LRR363 pKa = 11.84  LDD365 pKa = 3.99  PEE367 pKa = 4.32  PTDD370 pKa = 3.45  VSVSDD375 pKa = 3.35  TVIYY379 pKa = 10.74  QMVDD383 pKa = 2.85  QNGNVPPAGSDD394 pKa = 3.42  LSINCTDD401 pKa = 3.88  ASATALDD408 pKa = 3.94  SEE410 pKa = 4.88  VPEE413 pKa = 4.27  RR414 pKa = 11.84  PGALFGPWPVVINYY428 pKa = 9.96  GDD430 pKa = 4.21  DD431 pKa = 3.8  PGSCTLEE438 pKa = 3.95  VQSPNGLPQRR448 pKa = 11.84  YY449 pKa = 6.73  TISVNN454 pKa = 3.15  
 47.33 kDa
Isoelectric point according different methods: 
IPC2.protein.svr19  3.692 
IPC2_protein 3.834 
IPC_protein 3.872 
Toseland    3.643 
ProMoST     4.05 
Dawson      3.872 
Bjellqvist  4.024 
Wikipedia   3.821 
Rodwell     3.694 
Grimsley    3.554 
Solomon     3.872 
Lehninger   3.834 
Nozaki      3.986 
DTASelect   4.266 
Thurlkill   3.706 
EMBOSS      3.834 
Sillero     3.999 
Patrickios  1.405 
IPC_peptide 3.872 
IPC2_peptide  3.973 
IPC2.peptide.svr19  3.872 
 Protein with the highest isoelectric point: 
>tr|A0A4Z0WBI7|A0A4Z0WBI7_9GAMM Beta-N-acetylhexosaminidase OS=Natronospirillum operosum OX=2759953 GN=E4656_06875 PE=3 SV=1MM1 pKa = 7.45  KK2 pKa = 9.51  RR3 pKa = 11.84  TFQPSVLKK11 pKa = 10.42  RR12 pKa = 11.84  KK13 pKa = 9.04  RR14 pKa = 11.84  AHH16 pKa = 6.12  GFRR19 pKa = 11.84  ARR21 pKa = 11.84  MATKK25 pKa = 10.27  NGRR28 pKa = 11.84  KK29 pKa = 8.98  ILAARR34 pKa = 11.84  RR35 pKa = 11.84  AKK37 pKa = 9.72  GRR39 pKa = 11.84  KK40 pKa = 8.73  VLSAA44 pKa = 4.05  
 5.05 kDa
Isoelectric point according different methods: 
IPC2.protein.svr19  9.508 
IPC2_protein 11.169 
IPC_protein 12.749 
Toseland    12.91 
ProMoST     13.408 
Dawson      12.91 
Bjellqvist  12.91 
Wikipedia   13.393 
Rodwell     12.676 
Grimsley    12.954 
Solomon     13.408 
Lehninger   13.305 
Nozaki      12.91 
DTASelect   12.91 
Thurlkill   12.91 
EMBOSS      13.408 
Sillero     12.91 
Patrickios  12.398 
IPC_peptide 13.408 
IPC2_peptide  12.398 
IPC2.peptide.svr19  9.125 
 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
 
     
    
      
        3948 
0
3948 
1311596
22
4272
332.2
36.68
          
     
  
 
    Amino acid frequency 
  
  
    
      
        Ala
Cys
Asp
Glu
Phe
Gly
His
Ile
Lys
Leu
 
     
    
                 
        10.46 ± 0.042
0.879 ± 0.013
5.926 ± 0.039
6.186 ± 0.042
3.553 ± 0.027
7.659 ± 0.041
2.423 ± 0.021
4.934 ± 0.033
2.456 ± 0.035
11.364 ± 0.051
          
     
  
  
  
      
          
        Met
Asn
Gln
Pro
Arg
Ser
Thr
Val
Trp
Tyr
 
     
    
                 
        2.558 ± 0.022
2.893 ± 0.028
4.852 ± 0.032
4.688 ± 0.028
6.985 ± 0.039
5.617 ± 0.026
5.34 ± 0.04
7.127 ± 0.03
1.584 ± 0.019
2.515 ± 0.019
          
     
  
  
  
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