Rothia kristinae 
Average proteome isoelectric point is 6.28 
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 1872 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|A0A199NUK7|A0A199NUK7_9MICC Thiol-disulfide isomerase OS=Rothia kristinae OX=37923 GN=AN277_0203740 PE=4 SV=1 
MM1 pKa = 7.77  ADD3 pKa = 3.44  YY4 pKa = 11.36  EE5 pKa = 4.34  EE6 pKa = 4.89  FDD8 pKa = 3.88  GDD10 pKa = 3.68  GEE12 pKa = 4.35  EE13 pKa = 4.63  YY14 pKa = 10.37  EE15 pKa = 4.57  RR16 pKa = 11.84  EE17 pKa = 3.99  APEE20 pKa = 3.97  VYY22 pKa = 9.59  RR23 pKa = 11.84  RR24 pKa = 11.84  RR25 pKa = 11.84  RR26 pKa = 11.84  IIAAIIAILAIILVVWALVFAFQRR50 pKa = 11.84  LTDD53 pKa = 4.02  SGDD56 pKa = 3.36  DD57 pKa = 3.34  TAAASSAAAGDD68 pKa = 3.93  NFDD71 pKa = 4.45  SFSARR76 pKa = 11.84  PTGGASGSASGSASAQPSASASAEE100 pKa = 3.77  ATPTGEE106 pKa = 4.29  STASADD112 pKa = 4.15  AEE114 pKa = 4.34  GTEE117 pKa = 4.77  ASATPTDD124 pKa = 3.78  QAAAPTPEE132 pKa = 4.58  PTTQQPVQACSDD144 pKa = 3.62  AFTVSTTVDD153 pKa = 3.33  KK154 pKa = 10.96  QVYY157 pKa = 9.52  AAGQQPVITTTVANGSQNPCTVDD180 pKa = 3.23  LGSANTTYY188 pKa = 10.77  QITSGPANVYY198 pKa = 10.43  SSQTCQAQPTHH209 pKa = 7.51  DD210 pKa = 4.2  EE211 pKa = 4.07  ATLQAGAKK219 pKa = 7.42  QTTSLTWDD227 pKa = 3.18  RR228 pKa = 11.84  GMNAYY233 pKa = 10.18  GCGQAAQQAKK243 pKa = 8.35  TGYY246 pKa = 8.57  YY247 pKa = 9.04  WVTATVNGVSSQPTLIVIQQ266 pKa = 3.9   
 Molecular weight: 27.35 kDa
Isoelectric point according different methods: 
IPC2.protein.svr19  3.789 
IPC2_protein 4.024 
IPC_protein 3.986 
Toseland    3.783 
ProMoST     4.126 
Dawson      3.961 
Bjellqvist  4.113 
Wikipedia   3.872 
Rodwell     3.821 
Grimsley    3.694 
Solomon     3.961 
Lehninger   3.91 
Nozaki      4.075 
DTASelect   4.279 
Thurlkill   3.834 
EMBOSS      3.884 
Sillero     4.101 
Patrickios  1.1 
IPC_peptide 3.961 
IPC2_peptide  4.088 
IPC2.peptide.svr19  3.987 
 Protein with the highest isoelectric point: 
>tr|A0A199NTR6|A0A199NTR6_9MICC Uncharacterized protein OS=Rothia kristinae OX=37923 GN=AN277_0202340 PE=4 SV=1 
MM1 pKa = 7.34  SPRR4 pKa = 11.84  RR5 pKa = 11.84  SRR7 pKa = 11.84  RR8 pKa = 11.84  SRR10 pKa = 11.84  SRR12 pKa = 11.84  PRR14 pKa = 11.84  PRR16 pKa = 11.84  VRR18 pKa = 11.84  MSTRR22 pKa = 11.84  TRR24 pKa = 11.84  FIVTVVAVVVLVVVGLGTRR43 pKa = 11.84  GLDD46 pKa = 3.37  LFRR49 pKa = 11.84  GEE51 pKa = 5.25  DD52 pKa = 3.63  GSADD56 pKa = 3.61  RR57 pKa = 11.84  SGATASRR64 pKa = 11.84  AAGPLPAGLTAQQALDD80 pKa = 3.6  SLEE83 pKa = 4.44  TKK85 pKa = 10.52  GKK87 pKa = 9.83  AARR90 pKa = 11.84  TGYY93 pKa = 10.64  SRR95 pKa = 11.84  DD96 pKa = 3.28  AFGARR101 pKa = 11.84  WADD104 pKa = 3.35  VDD106 pKa = 5.44  HH107 pKa = 6.85  NGCDD111 pKa = 3.32  TRR113 pKa = 11.84  NDD115 pKa = 2.97  ILARR119 pKa = 11.84  DD120 pKa = 4.17  LTQTTLRR127 pKa = 11.84  PGTCKK132 pKa = 10.37  VATGVLQDD140 pKa = 4.2  PYY142 pKa = 9.64  TGRR145 pKa = 11.84  RR146 pKa = 11.84  IDD148 pKa = 3.75  FTAGAQTSAAVQIDD162 pKa = 4.12  HH163 pKa = 6.65  VVALSDD169 pKa = 3.15  AWQTGAQQLSTADD182 pKa = 3.82  RR183 pKa = 11.84  MALANDD189 pKa = 4.26  PLNLLAVDD197 pKa = 4.99  GPANNGKK204 pKa = 9.89  SDD206 pKa = 3.55  GDD208 pKa = 3.62  AATWLPEE215 pKa = 4.0  QKK217 pKa = 10.16  SFRR220 pKa = 11.84  CEE222 pKa = 3.58  YY223 pKa = 9.74  VARR226 pKa = 11.84  QAGVKK231 pKa = 9.57  RR232 pKa = 11.84  KK233 pKa = 9.41  YY234 pKa = 10.38  DD235 pKa = 3.33  LWVTRR240 pKa = 11.84  AEE242 pKa = 4.0  RR243 pKa = 11.84  AAMQRR248 pKa = 11.84  VLDD251 pKa = 3.88  TCPGQRR257 pKa = 11.84  IPTRR261 pKa = 3.58   
 Molecular weight: 28.23 kDa
Isoelectric point according different methods: 
IPC2.protein.svr19  9.353 
IPC2_protein 9.385 
IPC_protein 10.218 
Toseland    10.467 
ProMoST     10.394 
Dawson      10.584 
Bjellqvist  10.335 
Wikipedia   10.818 
Rodwell     10.657 
Grimsley    10.643 
Solomon     10.716 
Lehninger   10.672 
Nozaki      10.496 
DTASelect   10.321 
Thurlkill   10.482 
EMBOSS      10.877 
Sillero     10.526 
Patrickios  10.35 
IPC_peptide 10.716 
IPC2_peptide  9.531 
IPC2.peptide.svr19  8.683 
  
 
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
 
       
     
    
      
        1872 
 
        
        0
 
        
        1872 
         
        632351
 
        37
 
        1820
 
        337.8
 
        36.34
 
                
     
  
 
    Amino acid frequency 
  
  
    
      
        Ala
 
        Cys
 
        Asp
 
        Glu
 
        Phe
 
        Gly
 
        His
 
        Ile
 
        Lys
 
        Leu
 
       
     
    
                 
        13.238 ± 0.088
0.632 ± 0.014
 
        5.7 ± 0.052
6.431 ± 0.064
 
        2.843 ± 0.033
9.207 ± 0.057
 
        2.151 ± 0.025
4.064 ± 0.044
       
        2.071 ± 0.052
10.281 ± 0.079
         
                
     
  
  
  
      
          
        Met
         
        Asn
 
        Gln
 
        Pro
         
        Arg
 
        Ser
 
        Thr
 
        Val
 
        Trp
 
        Tyr
  
       
     
    
                 
        1.968 ± 0.024
1.742 ± 0.03
 
        5.663 ± 0.048
3.437 ± 0.033
 
        7.969 ± 0.071
5.261 ± 0.04
 
        5.672 ± 0.039
8.238 ± 0.047
       
        1.456 ± 0.022
1.975 ± 0.028
         
                
     
  
  
  
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