Caenorhabditis elegans
Average proteome isoelectric point is 6.72
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 28314 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|O61919|O61919_CAEEL Glycosyltransferase family 92 protein OS=Caenorhabditis elegans OX=6239 GN=C18G1.6 PE=3 SV=1
MM1 pKa = 7.71 LMLTFASTSSDD12 pKa = 4.19 LLPMSNVFDD21 pKa = 3.85 VQSSVFYY28 pKa = 10.67 NEE30 pKa = 4.27 KK31 pKa = 10.85 NMFYY35 pKa = 10.63 SSSQDD40 pKa = 3.17 FSSCEE45 pKa = 3.99 DD46 pKa = 3.1 SSQFADD52 pKa = 3.86 DD53 pKa = 4.88 SGFFDD58 pKa = 4.84 DD59 pKa = 6.24 SEE61 pKa = 4.39 ISSIGYY67 pKa = 9.65 EE68 pKa = 3.89 IGSKK72 pKa = 9.68 LAAMCDD78 pKa = 3.71 DD79 pKa = 5.37 FDD81 pKa = 5.08 AQMMSYY87 pKa = 9.93 SAHH90 pKa = 6.27 ASDD93 pKa = 4.2 RR94 pKa = 11.84 SLFHH98 pKa = 7.22 RR99 pKa = 11.84 LLDD102 pKa = 4.1 FFAFF106 pKa = 4.14
Molecular weight: 11.92 kDa
Isoelectric point according different methods:
IPC2.protein.svr19 3.706
IPC2_protein 3.745
IPC_protein 3.732
Toseland 3.503
ProMoST 3.923
Dawson 3.745
Bjellqvist 3.897
Wikipedia 3.719
Rodwell 3.554
Grimsley 3.414
Solomon 3.719
Lehninger 3.681
Nozaki 3.872
DTASelect 4.139
Thurlkill 3.579
EMBOSS 3.732
Sillero 3.859
Patrickios 0.846
IPC_peptide 3.719
IPC2_peptide 3.821
IPC2.peptide.svr19 3.755
Protein with the highest isoelectric point:
>tr|Q17749|Q17749_CAEEL Uncharacterized protein OS=Caenorhabditis elegans OX=6239 GN=C06G3.8 PE=1 SV=1
MM1 pKa = 7.76 PKK3 pKa = 10.24 SKK5 pKa = 10.31 SQKK8 pKa = 9.3 NKK10 pKa = 9.77 LRR12 pKa = 11.84 PRR14 pKa = 11.84 DD15 pKa = 3.62 SKK17 pKa = 11.69 GRR19 pKa = 11.84 FTPLAKK25 pKa = 9.69 TKK27 pKa = 9.08 RR28 pKa = 11.84 TVVSRR33 pKa = 11.84 SRR35 pKa = 11.84 SRR37 pKa = 11.84 SASRR41 pKa = 11.84 ARR43 pKa = 11.84 RR44 pKa = 11.84 SRR46 pKa = 11.84 SVGRR50 pKa = 11.84 PASRR54 pKa = 11.84 RR55 pKa = 11.84 ISVRR59 pKa = 11.84 SVSTHH64 pKa = 4.64 TAKK67 pKa = 10.76 SPSLVVVISPSPRR80 pKa = 11.84 RR81 pKa = 11.84 RR82 pKa = 11.84 RR83 pKa = 11.84 SSTSRR88 pKa = 11.84 SSRR91 pKa = 11.84 RR92 pKa = 11.84 SVVRR96 pKa = 11.84 SASRR100 pKa = 11.84 GSVSRR105 pKa = 11.84 RR106 pKa = 11.84 SSSRR110 pKa = 11.84 GSVYY114 pKa = 10.61 GRR116 pKa = 11.84 TGRR119 pKa = 11.84 SRR121 pKa = 11.84 SSKK124 pKa = 9.41 RR125 pKa = 11.84 SRR127 pKa = 11.84 SRR129 pKa = 11.84 SRR131 pKa = 11.84 SRR133 pKa = 11.84 SRR135 pKa = 11.84 SRR137 pKa = 11.84 SRR139 pKa = 11.84 SYY141 pKa = 10.76 SRR143 pKa = 11.84 SRR145 pKa = 11.84 SGSRR149 pKa = 11.84 RR150 pKa = 11.84 SSRR153 pKa = 11.84 RR154 pKa = 11.84 RR155 pKa = 11.84 SRR157 pKa = 11.84 RR158 pKa = 11.84 RR159 pKa = 11.84 SSLKK163 pKa = 9.91 ARR165 pKa = 11.84 GRR167 pKa = 11.84 RR168 pKa = 11.84 ASTAKK173 pKa = 8.92 KK174 pKa = 8.07 TPAKK178 pKa = 9.72 RR179 pKa = 11.84 RR180 pKa = 11.84 SRR182 pKa = 11.84 SRR184 pKa = 11.84 SQQKK188 pKa = 9.36 VKK190 pKa = 10.86 RR191 pKa = 11.84 SMSRR195 pKa = 11.84 KK196 pKa = 9.01 GG197 pKa = 3.21
Molecular weight: 22.39 kDa
Isoelectric point according different methods:
IPC2.protein.svr19 9.524
IPC2_protein 11.491
IPC_protein 12.969
Toseland 13.13
ProMoST 13.627
Dawson 13.13
Bjellqvist 13.13
Wikipedia 13.598
Rodwell 12.735
Grimsley 13.173
Solomon 13.627
Lehninger 13.525
Nozaki 13.13
DTASelect 13.13
Thurlkill 13.13
EMBOSS 13.627
Sillero 13.13
Patrickios 12.442
IPC_peptide 13.627
IPC2_peptide 12.618
IPC2.peptide.svr19 9.29
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
19813
8501
28314
13466555
9
18562
475.6
53.51
Amino acid frequency
Ala
Cys
Asp
Glu
Phe
Gly
His
Ile
Lys
Leu
6.519 ± 0.017
1.951 ± 0.015
5.444 ± 0.018
6.784 ± 0.031
4.373 ± 0.018
5.432 ± 0.022
2.33 ± 0.009
5.854 ± 0.015
6.216 ± 0.024
8.364 ± 0.02
Met
Asn
Gln
Pro
Arg
Ser
Thr
Val
Trp
Tyr
2.593 ± 0.011
4.778 ± 0.012
5.164 ± 0.022
4.319 ± 0.018
5.282 ± 0.016
8.281 ± 0.023
6.005 ± 0.022
6.226 ± 0.014
1.062 ± 0.005
3.022 ± 0.014
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