uncultured bacterium
Average proteome isoelectric point is 7.08
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 1290 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|A0A090KNA6|A0A090KNA6_9BACT Uncultured bacterium genome assembly Metasoil_fosmids_resub OS=uncultured bacterium OX=77133 PE=4 SV=1
MM1 pKa = 7.13 IRR3 pKa = 11.84 APRR6 pKa = 11.84 TRR8 pKa = 11.84 RR9 pKa = 11.84 SFNRR13 pKa = 11.84 SRR15 pKa = 11.84 LWLEE19 pKa = 3.74 SLEE22 pKa = 4.27 TRR24 pKa = 11.84 VTPTTIPVSTLNDD37 pKa = 3.34 MGQGSLRR44 pKa = 11.84 QAIIDD49 pKa = 3.75 ANFNPGPDD57 pKa = 3.47 TIEE60 pKa = 3.83 FTVAGTIQLTTGALPTITDD79 pKa = 3.61 TVKK82 pKa = 10.21 IDD84 pKa = 3.23 GRR86 pKa = 11.84 SAPGFLAAPVVEE98 pKa = 4.49 IDD100 pKa = 3.09 AHH102 pKa = 5.87 GFAGLFFEE110 pKa = 5.09 IGSNGSSLLSLAVGNANGAGVTLDD134 pKa = 3.84 DD135 pKa = 4.91 SNNNVAGNYY144 pKa = 9.32 IGLALDD150 pKa = 4.55 GSTTASNVGDD160 pKa = 3.42 GLVINSSSINNIIGGTSPLDD180 pKa = 3.43 RR181 pKa = 11.84 NVISGNTGDD190 pKa = 4.86 GITVSGSTRR199 pKa = 11.84 NQIVGNFIGPDD210 pKa = 3.2 ASGLGGRR217 pKa = 11.84 GNGLDD222 pKa = 4.91 GILLTAGAAVNNVGGTIDD240 pKa = 3.39 AQRR243 pKa = 11.84 NIISCNAADD252 pKa = 4.56 GVSLEE257 pKa = 4.45 QGAHH261 pKa = 6.43 DD262 pKa = 5.68 NIILGNFIGTDD273 pKa = 3.44 VTGLAGLGNGLDD285 pKa = 4.0 GVHH288 pKa = 7.23 ADD290 pKa = 3.75 DD291 pKa = 5.29 AANNVIGNTVPVKK304 pKa = 10.46 NVSYY308 pKa = 10.61 FNANLVSPTPNPGWTGIRR326 pKa = 11.84 ASDD329 pKa = 3.26 TSGNYY334 pKa = 9.86 LISGISGTQGLLYY347 pKa = 10.48 EE348 pKa = 4.58 GTISGAGVTIPVNFPNASASAVYY371 pKa = 10.47 GPDD374 pKa = 3.22 NLGGNHH380 pKa = 5.27 VALVGSYY387 pKa = 10.36 NVTGTGLADD396 pKa = 3.13 QKK398 pKa = 11.65 GFIFEE403 pKa = 4.2 GTTADD408 pKa = 3.48 LTNPANYY415 pKa = 7.33 TTIDD419 pKa = 3.04 AGGDD423 pKa = 3.49 FNIVHH428 pKa = 6.08 STMQGLAVGNSDD440 pKa = 3.63 SSPSQGQASLLSHH453 pKa = 6.95 AFLYY457 pKa = 10.7 DD458 pKa = 3.42 VASGQFLPDD467 pKa = 2.86 IVFPGSVSNTAYY479 pKa = 10.49 GIWFNGGTSYY489 pKa = 9.53 TICGGWSSDD498 pKa = 3.41 PVNNFDD504 pKa = 4.94 DD505 pKa = 3.76 QNRR508 pKa = 11.84 PIGQGYY514 pKa = 8.82 LVDD517 pKa = 4.35 YY518 pKa = 11.02 DD519 pKa = 4.8 SLTQTFTNWTSFQYY533 pKa = 10.73 PFGKK537 pKa = 10.28 SFFTHH542 pKa = 6.54 FEE544 pKa = 4.55 GISSVEE550 pKa = 3.87 NGVYY554 pKa = 9.5 TLNADD559 pKa = 3.72 SFQVGTTNPIQGSWVSVRR577 pKa = 11.84 RR578 pKa = 11.84 NSDD581 pKa = 2.78 GSFSLGQWTNLAYY594 pKa = 9.88 PGTGNITSSNSVYY607 pKa = 10.13 GNQVVGVVFHH617 pKa = 6.86 GATAFAFQATVNIGFQLSNVIGCNADD643 pKa = 3.7 DD644 pKa = 4.7 GVLLTGGATANTIASNFIGLDD665 pKa = 3.49 LTGKK669 pKa = 10.14 AALANGSDD677 pKa = 3.63 GVEE680 pKa = 4.21 VEE682 pKa = 4.11 NSQGNLIGTTSTGPEE697 pKa = 3.39 VNYY700 pKa = 10.31 FNTSLITSVPVSGWEE715 pKa = 4.56 GIRR718 pKa = 11.84 QADD721 pKa = 3.98 LPGQFLISGTSGSNGLLFEE740 pKa = 4.19 GTIDD744 pKa = 4.62 GVGTTNIVDD753 pKa = 3.64 YY754 pKa = 9.98 PGASSTFVYY763 pKa = 10.62 GPDD766 pKa = 3.57 NEE768 pKa = 4.73 GSGNLGLVGTYY779 pKa = 7.92 KK780 pKa = 10.07 TANSSVVNGFLFQGTVADD798 pKa = 5.16 LGTPANFQTINKK810 pKa = 9.71 SGATFNYY817 pKa = 9.54 LHH819 pKa = 6.28 STMGGLIVGNYY830 pKa = 9.93 DD831 pKa = 3.15 SAPDD835 pKa = 3.72 HH836 pKa = 6.18 GQGGLPFGPGHH847 pKa = 5.64 ATIYY851 pKa = 10.71 DD852 pKa = 3.69 IATQTYY858 pKa = 7.89 LTDD861 pKa = 3.19 IVFPGSKK868 pKa = 9.98 SNSVYY873 pKa = 10.87 GIWFNGGTSYY883 pKa = 9.4 TVCGGYY889 pKa = 10.12 SPTFVNNFDD898 pKa = 3.81 DD899 pKa = 3.72 QNRR902 pKa = 11.84 PIGQAYY908 pKa = 9.02 LANYY912 pKa = 7.69 DD913 pKa = 3.65 TATGQFSHH921 pKa = 6.68 FTSFSYY927 pKa = 10.7 PFGTNFLTHH936 pKa = 6.55 FEE938 pKa = 4.92 GISSVEE944 pKa = 3.78 PGVYY948 pKa = 9.24 TLAADD953 pKa = 4.9 SIQSGSSQTIQASWVVVRR971 pKa = 11.84 RR972 pKa = 11.84 NPDD975 pKa = 2.68 GSFGTGQWVNLDD987 pKa = 3.67 YY988 pKa = 11.2 PGVATTGTFTGSDD1001 pKa = 3.25 SVYY1004 pKa = 9.18 GNQVVGIVVSSTSTFCFQATVNVGTQMSNIISGNSGNGVLLNVGAQNNQVAGNFIGTDD1062 pKa = 3.36 ATGSASLGNSLNGVQLEE1079 pKa = 4.37 GANNNVIGNNNPITDD1094 pKa = 3.37 IPFFNTDD1101 pKa = 3.04 SVSVQVSGWQGIRR1114 pKa = 11.84 NSDD1117 pKa = 3.3 TTGQFLITGTSGTNGLLFDD1136 pKa = 3.87 GTIAGVGTSYY1146 pKa = 10.87 QVNFPNAATTSVYY1159 pKa = 10.81 GPDD1162 pKa = 3.48 NQGSGNIGLVGSYY1175 pKa = 10.4 KK1176 pKa = 10.86 NSDD1179 pKa = 3.22 ADD1181 pKa = 3.74 TAAVKK1186 pKa = 10.96 VNGFAFQGTVADD1198 pKa = 4.98 LGNSANYY1205 pKa = 7.14 QTIDD1209 pKa = 2.93 IAGAEE1214 pKa = 4.18 FNYY1217 pKa = 9.98 VHH1219 pKa = 6.08 STMNGLAVGNYY1230 pKa = 9.93 DD1231 pKa = 3.21 SAADD1235 pKa = 3.65 HH1236 pKa = 6.6 GMGGLPLGPGHH1247 pKa = 7.33 AFIYY1251 pKa = 10.35 DD1252 pKa = 4.22 LNQHH1256 pKa = 6.29 KK1257 pKa = 10.0 FLTDD1261 pKa = 2.7 IMFPGSLSNTAYY1273 pKa = 10.51 GIWFNGNDD1281 pKa = 3.62 SYY1283 pKa = 10.45 TICGGWSPDD1292 pKa = 3.82 LVNNLLNQDD1301 pKa = 3.47 QPIGKK1306 pKa = 9.9 GYY1308 pKa = 10.46 LVDD1311 pKa = 4.09 YY1312 pKa = 10.36 NSKK1315 pKa = 9.12 TGAFTHH1321 pKa = 6.25 FTSFDD1326 pKa = 3.7 YY1327 pKa = 10.96 PFGTNFVTHH1336 pKa = 6.46 FEE1338 pKa = 4.8 GISSVEE1344 pKa = 3.84 KK1345 pKa = 10.65 GVYY1348 pKa = 8.58 TLSADD1353 pKa = 3.65 SVQAGSNAPVQGSFVSVLRR1372 pKa = 11.84 NTDD1375 pKa = 2.75 GSFGSGQWINLNYY1388 pKa = 9.92 PGLNPTVNITSSNSVYY1404 pKa = 10.7 GNAVVGIVIGANPFSYY1420 pKa = 10.24 QATVNVGFQLSNVISGNGGNGIEE1443 pKa = 4.6 LDD1445 pKa = 3.77 ASNGNQIAMNNVGTDD1460 pKa = 3.5 LTGSRR1465 pKa = 11.84 DD1466 pKa = 3.34 LGNFGNGVLLTGASANNMVGGVATGGNAPTNGVFVRR1502 pKa = 11.84 PPEE1505 pKa = 4.36 GNLISGNDD1513 pKa = 3.46 QNGVLITDD1521 pKa = 4.9 LATHH1525 pKa = 6.16 NQLSGNFIGTTAPGNSAMGNALDD1548 pKa = 5.78 GVAIDD1553 pKa = 4.0 NAPGNSLIGCTFQQDD1568 pKa = 3.3 PFVFYY1573 pKa = 11.19 NVIDD1577 pKa = 4.16 GNGGNGLRR1585 pKa = 11.84 VTNSDD1590 pKa = 2.82 NTTFQANFLGLGADD1604 pKa = 3.27 NSTPVGNALDD1614 pKa = 3.94 GALINGSSANIQFGGVIPLGNVDD1637 pKa = 3.9 AANGRR1642 pKa = 11.84 NGVEE1646 pKa = 4.03 IADD1649 pKa = 4.01 TASGGVYY1656 pKa = 10.45 FNTFCGLPAFVDD1668 pKa = 3.71 TAVGNTLDD1676 pKa = 3.94 GFLVTSTGGNNTIRR1690 pKa = 11.84 TNVVSGNKK1698 pKa = 10.01 GNGIHH1703 pKa = 7.0 ISGNATGVQVTDD1715 pKa = 4.3 TIVGLNTSGTTAIPNGANGILLDD1738 pKa = 5.36 GNAHH1742 pKa = 6.94 DD1743 pKa = 4.49 NNIGGFQPSVIPEE1756 pKa = 3.64 VTIAANGANGIAVVGNAKK1774 pKa = 10.5 NNTIFHH1780 pKa = 6.21 SLIGLNISGLTAIGNAGAGIFVGGAATGTIIGGTGPGQKK1819 pKa = 9.98 VVVSGNLGGGIQLSGQSQGTQIIGSLIGTNKK1850 pKa = 10.45 LGTAPVGNHH1859 pKa = 5.84 GNGITIVSSGNSVGGTAAGQGNTVAFNSQFGIVVDD1894 pKa = 4.0 TGTGNGILSNSIFNNGSGGILLTTGGNLGQPAPVLTFIPQTGSLTATVNGTLTAVANTTYY1954 pKa = 10.17 TVQLFASSSAVPGGQGQFVVSSFSATTNGSGVASFSVTVTIPSSSDD2000 pKa = 3.06 QFFTATATDD2009 pKa = 4.14 PNKK2012 pKa = 8.72 NTSMFSAAVQWTTPNAQYY2030 pKa = 9.04 VTSAYY2035 pKa = 10.26 QLLLGRR2041 pKa = 11.84 MPDD2044 pKa = 3.07 ASGGVFWVNQLNAGASPASVVLGIQGSSEE2073 pKa = 4.09 YY2074 pKa = 10.34 LTDD2077 pKa = 4.28 QVFALYY2083 pKa = 10.48 GRR2085 pKa = 11.84 YY2086 pKa = 9.33 LDD2088 pKa = 4.54 RR2089 pKa = 11.84 APEE2092 pKa = 4.1 STGAEE2097 pKa = 3.91 FWTNFLIAGGTFEE2110 pKa = 5.17 QVAEE2114 pKa = 4.02 QLISSPEE2121 pKa = 3.69 YY2122 pKa = 10.03 FQAHH2126 pKa = 6.71 GATNAGFVLGLYY2138 pKa = 10.34 ADD2140 pKa = 3.73 VFGRR2144 pKa = 11.84 TPSRR2148 pKa = 11.84 FEE2150 pKa = 3.64 LASWVIVLDD2159 pKa = 4.22 AGASRR2164 pKa = 11.84 LTVATDD2170 pKa = 3.93 FLTSLEE2176 pKa = 3.97 YY2177 pKa = 10.7 RR2178 pKa = 11.84 QDD2180 pKa = 3.81 LVEE2183 pKa = 4.78 SDD2185 pKa = 3.17 YY2186 pKa = 11.39 DD2187 pKa = 3.44 IYY2189 pKa = 11.16 LGRR2192 pKa = 11.84 TADD2195 pKa = 3.67 QNGLNFWVNALNTGSTDD2212 pKa = 3.47 QEE2214 pKa = 4.06 VLAGIFGSPEE2224 pKa = 3.8 GFAKK2228 pKa = 10.46 WSS2230 pKa = 3.39
Molecular weight: 228.11 kDa
Isoelectric point according different methods:
IPC2.protein.svr19 3.86
IPC2_protein 4.024
IPC_protein 4.075
Toseland 3.846
ProMoST 4.24
Dawson 4.075
Bjellqvist 4.228
Wikipedia 4.024
Rodwell 3.897
Grimsley 3.757
Solomon 4.075
Lehninger 4.037
Nozaki 4.19
DTASelect 4.482
Thurlkill 3.897
EMBOSS 4.037
Sillero 4.202
Patrickios 0.795
IPC_peptide 4.075
IPC2_peptide 4.19
IPC2.peptide.svr19 4.065
Protein with the highest isoelectric point:
>tr|A0A090KMN6|A0A090KMN6_9BACT Uncultured bacterium genome assembly Metasoil_fosmids_resub OS=uncultured bacterium OX=77133 PE=4 SV=1
MM1 pKa = 7.88 RR2 pKa = 11.84 LGPGLSFSWRR12 pKa = 11.84 RR13 pKa = 11.84 AFGVSAFNARR23 pKa = 11.84 IARR26 pKa = 11.84 RR27 pKa = 11.84 TGIPTTRR34 pKa = 11.84 SGLDD38 pKa = 3.03 RR39 pKa = 11.84 KK40 pKa = 10.06 IGRR43 pKa = 11.84 FFTAGLLSLLFGGRR57 pKa = 11.84 RR58 pKa = 3.39
Molecular weight: 6.43 kDa
Isoelectric point according different methods:
IPC2.protein.svr19 9.412
IPC2_protein 10.877
IPC_protein 12.501
Toseland 12.661
ProMoST 13.159
Dawson 12.661
Bjellqvist 12.647
Wikipedia 13.13
Rodwell 12.193
Grimsley 12.691
Solomon 13.159
Lehninger 13.056
Nozaki 12.661
DTASelect 12.647
Thurlkill 12.661
EMBOSS 13.159
Sillero 12.661
Patrickios 11.945
IPC_peptide 13.159
IPC2_peptide 12.149
IPC2.peptide.svr19 9.136
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
1289
1
1290
357591
21
2758
277.2
30.45
Amino acid frequency
Ala
Cys
Asp
Glu
Phe
Gly
His
Ile
Lys
Leu
11.039 ± 0.109
1.015 ± 0.022
5.427 ± 0.041
5.61 ± 0.076
3.84 ± 0.053
8.015 ± 0.103
2.232 ± 0.033
5.051 ± 0.058
3.823 ± 0.062
9.965 ± 0.08
Met
Asn
Gln
Pro
Arg
Ser
Thr
Val
Trp
Tyr
2.081 ± 0.033
2.986 ± 0.077
5.481 ± 0.07
3.461 ± 0.048
7.521 ± 0.099
5.791 ± 0.063
5.427 ± 0.068
7.235 ± 0.059
1.565 ± 0.032
2.435 ± 0.039
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