Methanococcus maripaludis (strain S2 / LL)
Average proteome isoelectric point is 6.1
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 1722 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:
>sp|Q6LX80|RFRNP_METMP RNA-free ribonuclease P OS=Methanococcus maripaludis (strain S2 / LL) OX=267377 GN=MMP1472 PE=3 SV=1
MM1 pKa = 7.53 SAPSKK6 pKa = 10.75 LIALFILTVLCTLTISYY23 pKa = 10.52 GMVVDD28 pKa = 5.27 DD29 pKa = 4.74 PLIVVNSEE37 pKa = 4.26 KK38 pKa = 10.35 VDD40 pKa = 3.28 KK41 pKa = 10.54 TYY43 pKa = 11.55 AEE45 pKa = 4.41 LLMDD49 pKa = 4.04 KK50 pKa = 10.41 YY51 pKa = 9.11 YY52 pKa = 9.89 TKK54 pKa = 10.77 RR55 pKa = 11.84 SIEE58 pKa = 4.11 VNSDD62 pKa = 2.45 NDD64 pKa = 3.35 IVVNEE69 pKa = 4.1 NIIYY73 pKa = 9.39 NVPALDD79 pKa = 3.51 EE80 pKa = 4.67 FEE82 pKa = 5.24 INDD85 pKa = 3.91 GKK87 pKa = 11.41 GKK89 pKa = 10.41 LLVEE93 pKa = 4.61 FTKK96 pKa = 10.74 SGEE99 pKa = 4.11 SVTYY103 pKa = 10.82 KK104 pKa = 10.06 NFEE107 pKa = 4.04 YY108 pKa = 10.78 EE109 pKa = 4.27 EE110 pKa = 4.63 EE111 pKa = 4.22 IEE113 pKa = 5.0 SDD115 pKa = 3.89 DD116 pKa = 4.38 EE117 pKa = 5.28 GDD119 pKa = 3.41 EE120 pKa = 4.14 VTFMGKK126 pKa = 7.51 TYY128 pKa = 11.21 KK129 pKa = 10.59 LIEE132 pKa = 4.18 YY133 pKa = 10.53 DD134 pKa = 3.63 EE135 pKa = 4.88 DD136 pKa = 3.69 EE137 pKa = 5.89 KK138 pKa = 11.14 IVLGNKK144 pKa = 9.37 VEE146 pKa = 5.62 DD147 pKa = 3.53 IDD149 pKa = 3.94 TTEE152 pKa = 3.89 EE153 pKa = 3.73 FSYY156 pKa = 10.85 DD157 pKa = 2.7 IYY159 pKa = 10.54 TFKK162 pKa = 10.77 IIGKK166 pKa = 9.36 DD167 pKa = 3.17 STGEE171 pKa = 3.99 VLVSVYY177 pKa = 10.68 EE178 pKa = 4.12 GTDD181 pKa = 2.95 RR182 pKa = 11.84 IEE184 pKa = 4.1 NVKK187 pKa = 9.8 MYY189 pKa = 10.36 PDD191 pKa = 3.25 DD192 pKa = 3.74 TYY194 pKa = 10.98 FVSGSTVSIYY204 pKa = 10.45 YY205 pKa = 10.13 DD206 pKa = 3.53 EE207 pKa = 4.52 YY208 pKa = 11.59 LEE210 pKa = 5.08 SGDD213 pKa = 3.15 TAYY216 pKa = 10.74 FFFEE220 pKa = 4.71 IYY222 pKa = 10.43 DD223 pKa = 3.64 SLEE226 pKa = 4.21 FEE228 pKa = 4.88 DD229 pKa = 4.88 GKK231 pKa = 11.28 SISGYY236 pKa = 10.55 SDD238 pKa = 3.82 FDD240 pKa = 4.03 TEE242 pKa = 5.35 IDD244 pKa = 3.68 GQTITLEE251 pKa = 3.9 YY252 pKa = 10.62 DD253 pKa = 3.33 NPKK256 pKa = 10.4 SLSEE260 pKa = 4.12 NFGLLNYY267 pKa = 9.63 KK268 pKa = 10.21 VNLVDD273 pKa = 5.12 VNGEE277 pKa = 3.9 DD278 pKa = 3.15 LTAFFTVTQNLNYY291 pKa = 9.96 EE292 pKa = 4.07 YY293 pKa = 11.41 DD294 pKa = 3.44 MDD296 pKa = 4.37 EE297 pKa = 3.88 GTKK300 pKa = 10.72 YY301 pKa = 10.65 FGNNIFAVKK310 pKa = 10.43 LEE312 pKa = 4.08 NDD314 pKa = 4.53 EE315 pKa = 4.21 EE316 pKa = 5.05 DD317 pKa = 3.71 DD318 pKa = 4.12 WDD320 pKa = 5.14 DD321 pKa = 4.41 EE322 pKa = 4.87 LYY324 pKa = 10.68 LYY326 pKa = 10.81 KK327 pKa = 10.82 NNKK330 pKa = 9.62 KK331 pKa = 9.55 YY332 pKa = 11.17 DD333 pKa = 3.93 KK334 pKa = 10.71 IVDD337 pKa = 3.86 YY338 pKa = 10.78 QGSVQLVDD346 pKa = 3.41 QDD348 pKa = 4.23 EE349 pKa = 4.48 LLSASSDD356 pKa = 3.84 LILIGGPVSNKK367 pKa = 6.09 VTEE370 pKa = 4.66 SIQNSLNIEE379 pKa = 4.06 VTNDD383 pKa = 3.13 YY384 pKa = 10.4 PGEE387 pKa = 4.26 GKK389 pKa = 10.73 GVIQTITNPNNAEE402 pKa = 3.98 STILVLAGSDD412 pKa = 3.51 RR413 pKa = 11.84 EE414 pKa = 4.43 GTKK417 pKa = 10.61 ACVLALNQGLYY428 pKa = 10.46 SGTGALTVKK437 pKa = 9.67 LTGEE441 pKa = 4.39 DD442 pKa = 3.56 SVSVII447 pKa = 4.39
Molecular weight: 50.23 kDa
Isoelectric point according different methods:
IPC2.protein.svr19 3.744
IPC2_protein 3.846
IPC_protein 3.859
Toseland 3.643
ProMoST 3.986
Dawson 3.821
Bjellqvist 3.973
Wikipedia 3.732
Rodwell 3.681
Grimsley 3.554
Solomon 3.821
Lehninger 3.783
Nozaki 3.935
DTASelect 4.139
Thurlkill 3.681
EMBOSS 3.745
Sillero 3.973
Patrickios 1.875
IPC_peptide 3.821
IPC2_peptide 3.948
IPC2.peptide.svr19 3.861
Protein with the highest isoelectric point:
>tr|Q6M0Y3|Q6M0Y3_METMP Threonine synthase OS=Methanococcus maripaludis (strain S2 / LL) OX=267377 GN=thrC PE=3 SV=1
MM1 pKa = 7.77 AGNKK5 pKa = 9.37 PLGKK9 pKa = 10.1 KK10 pKa = 9.19 IRR12 pKa = 11.84 LAKK15 pKa = 10.25 ALKK18 pKa = 9.04 QNRR21 pKa = 11.84 RR22 pKa = 11.84 VPMFAIARR30 pKa = 11.84 TKK32 pKa = 10.89 GSVKK36 pKa = 8.79 QHH38 pKa = 5.52 PKK40 pKa = 7.54 MRR42 pKa = 11.84 HH43 pKa = 3.6 WRR45 pKa = 11.84 RR46 pKa = 11.84 KK47 pKa = 7.42 NLKK50 pKa = 9.64 KK51 pKa = 10.79
Molecular weight: 6.0 kDa
Isoelectric point according different methods:
IPC2.protein.svr19 9.473
IPC2_protein 11.082
IPC_protein 12.618
Toseland 12.808
ProMoST 13.276
Dawson 12.808
Bjellqvist 12.793
Wikipedia 13.276
Rodwell 12.735
Grimsley 12.837
Solomon 13.29
Lehninger 13.188
Nozaki 12.808
DTASelect 12.793
Thurlkill 12.808
EMBOSS 13.29
Sillero 12.808
Patrickios 12.457
IPC_peptide 13.29
IPC2_peptide 12.266
IPC2.peptide.svr19 9.03
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
1722
0
1722
490599
32
2076
284.9
31.95
Amino acid frequency
Ala
Cys
Asp
Glu
Phe
Gly
His
Ile
Lys
Leu
5.809 ± 0.071
1.367 ± 0.04
5.602 ± 0.048
8.131 ± 0.06
4.2 ± 0.05
6.753 ± 0.049
1.501 ± 0.023
9.401 ± 0.059
8.849 ± 0.067
9.088 ± 0.064
Met
Asn
Gln
Pro
Arg
Ser
Thr
Val
Trp
Tyr
2.623 ± 0.031
5.637 ± 0.064
3.398 ± 0.031
1.871 ± 0.024
3.096 ± 0.043
6.257 ± 0.055
4.965 ± 0.044
6.982 ± 0.052
0.65 ± 0.019
3.82 ± 0.04
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