bacterium J10(2018)
Average proteome isoelectric point is 6.27
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 2759 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|A0A3L7ZYG1|A0A3L7ZYG1_9BACT Large-conductance mechanosensitive channel OS=bacterium J10(2018) OX=2320122 GN=mscL PE=3 SV=1
MM1 pKa = 7.38 KK2 pKa = 10.67 LEE4 pKa = 5.19 DD5 pKa = 3.47 IKK7 pKa = 11.23 ATIDD11 pKa = 3.48 SYY13 pKa = 11.63 FDD15 pKa = 4.09 SISEE19 pKa = 3.86 EE20 pKa = 4.24 DD21 pKa = 4.89 FFDD24 pKa = 5.33 LLTNEE29 pKa = 4.02 YY30 pKa = 10.73 NMPIVYY36 pKa = 10.31 DD37 pKa = 3.65 IDD39 pKa = 4.41 LSPLKK44 pKa = 10.6 SDD46 pKa = 3.0 IGYY49 pKa = 10.64 GDD51 pKa = 3.8 VLVEE55 pKa = 4.64 LDD57 pKa = 3.96 NITYY61 pKa = 10.34 EE62 pKa = 4.43 PIQIKK67 pKa = 10.5 DD68 pKa = 3.43 LFINEE73 pKa = 4.03 IVKK76 pKa = 9.11 VVPPHH81 pKa = 5.44 KK82 pKa = 9.46 TYY84 pKa = 11.12 EE85 pKa = 4.2 FVSNDD90 pKa = 3.79 DD91 pKa = 3.49 SCISYY96 pKa = 10.66 SLSFAAA102 pKa = 5.75
Molecular weight: 11.7 kDa
Isoelectric point according different methods:
IPC2.protein.svr19 3.713
IPC2_protein 3.783
IPC_protein 3.757
Toseland 3.541
ProMoST 3.935
Dawson 3.757
Bjellqvist 3.91
Wikipedia 3.706
Rodwell 3.592
Grimsley 3.452
Solomon 3.745
Lehninger 3.694
Nozaki 3.884
DTASelect 4.101
Thurlkill 3.605
EMBOSS 3.706
Sillero 3.884
Patrickios 0.896
IPC_peptide 3.732
IPC2_peptide 3.859
IPC2.peptide.svr19 3.802
Protein with the highest isoelectric point:
>tr|A0A3L8A5K1|A0A3L8A5K1_9BACT TonB family protein OS=bacterium J10(2018) OX=2320122 GN=D7V95_02670 PE=3 SV=1
MM1 pKa = 7.34 RR2 pKa = 11.84 THH4 pKa = 7.14 IFYY7 pKa = 9.11 STRR10 pKa = 11.84 DD11 pKa = 3.28 HH12 pKa = 7.54 DD13 pKa = 4.78 FLEE16 pKa = 4.96 ACQSVLKK23 pKa = 10.32 QNPDD27 pKa = 3.14 RR28 pKa = 11.84 QFDD31 pKa = 3.82 SLLALSIAVSRR42 pKa = 11.84 SQAPSYY48 pKa = 10.48 YY49 pKa = 10.14 VEE51 pKa = 4.29 PDD53 pKa = 3.09 YY54 pKa = 11.15 AYY56 pKa = 10.6 RR57 pKa = 11.84 IVLAIRR63 pKa = 11.84 RR64 pKa = 11.84 NGGIKK69 pKa = 9.58 GTGTTQMKK77 pKa = 8.75 WAEE80 pKa = 4.39 FYY82 pKa = 10.66 RR83 pKa = 11.84 KK84 pKa = 9.91 VMTRR88 pKa = 11.84 MKK90 pKa = 10.03 RR91 pKa = 11.84 RR92 pKa = 11.84 KK93 pKa = 9.99 GEE95 pKa = 4.0 SLRR98 pKa = 11.84 DD99 pKa = 3.67 AVIHH103 pKa = 5.33 VAAFEE108 pKa = 4.05 PAGSFFISPEE118 pKa = 3.96 CGAKK122 pKa = 9.6 ILRR125 pKa = 11.84 THH127 pKa = 6.66 LRR129 pKa = 11.84 RR130 pKa = 11.84 RR131 pKa = 11.84 TCALTTLLSPALVIRR146 pKa = 11.84 STRR149 pKa = 11.84 RR150 pKa = 11.84 RR151 pKa = 11.84 FRR153 pKa = 11.84 HH154 pKa = 5.72 NIKK157 pKa = 10.37 HH158 pKa = 5.49
Molecular weight: 18.3 kDa
Isoelectric point according different methods:
IPC2.protein.svr19 9.332
IPC2_protein 9.867
IPC_protein 10.877
Toseland 10.877
ProMoST 10.774
Dawson 10.965
Bjellqvist 10.76
Wikipedia 11.242
Rodwell 11.052
Grimsley 11.023
Solomon 11.169
Lehninger 11.111
Nozaki 10.877
DTASelect 10.745
Thurlkill 10.877
EMBOSS 11.301
Sillero 10.906
Patrickios 10.76
IPC_peptide 11.169
IPC2_peptide 9.97
IPC2.peptide.svr19 8.453
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
2759
0
2759
975351
20
2465
353.5
39.63
Amino acid frequency
Ala
Cys
Asp
Glu
Phe
Gly
His
Ile
Lys
Leu
7.866 ± 0.053
1.255 ± 0.018
6.39 ± 0.039
5.953 ± 0.044
4.175 ± 0.034
6.977 ± 0.035
1.94 ± 0.019
6.946 ± 0.046
5.717 ± 0.043
8.636 ± 0.041
Met
Asn
Gln
Pro
Arg
Ser
Thr
Val
Trp
Tyr
2.846 ± 0.018
4.865 ± 0.034
3.999 ± 0.025
2.793 ± 0.026
5.336 ± 0.034
6.367 ± 0.034
5.599 ± 0.04
6.76 ± 0.037
1.291 ± 0.021
4.289 ± 0.033
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