Photinus pyralis (Common eastern firefly) (Lampyris pyralis)
Average proteome isoelectric point is 6.8
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 14952 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|A0A1Y1LW23|A0A1Y1LW23_PHOPY TPR_REGION domain-containing protein OS=Photinus pyralis OX=7054 GN=PPYR_12191 PE=4 SV=1
MM1 pKa = 6.57 EE2 pKa = 4.65 TVVATPTTVYY12 pKa = 10.53 EE13 pKa = 4.04 QIQNIFYY20 pKa = 10.06 AIPILITIHH29 pKa = 5.73 FLFYY33 pKa = 10.96 AFVIAAYY40 pKa = 7.57 NTSNGEE46 pKa = 4.1 FFHH49 pKa = 8.35 SLINAQEE56 pKa = 4.15 EE57 pKa = 4.54 KK58 pKa = 11.11 EE59 pKa = 4.1 EE60 pKa = 4.06 VLVIEE65 pKa = 4.6 ARR67 pKa = 11.84 KK68 pKa = 9.92 QYY70 pKa = 10.99 VIAKK74 pKa = 9.18 WDD76 pKa = 3.8 DD77 pKa = 3.39 QSDD80 pKa = 3.69 EE81 pKa = 5.57 DD82 pKa = 6.18 DD83 pKa = 5.79 DD84 pKa = 6.97 DD85 pKa = 6.43 DD86 pKa = 4.61 STWDD90 pKa = 3.3 KK91 pKa = 11.68 CEE93 pKa = 3.78 EE94 pKa = 4.11 CLGNSSSPSDD104 pKa = 3.65 TPPP107 pKa = 3.86
Molecular weight: 12.22 kDa
Isoelectric point according different methods:
IPC2.protein.svr19 3.747
IPC2_protein 3.897
IPC_protein 3.834
Toseland 3.643
ProMoST 3.986
Dawson 3.808
Bjellqvist 3.973
Wikipedia 3.732
Rodwell 3.668
Grimsley 3.554
Solomon 3.795
Lehninger 3.757
Nozaki 3.935
DTASelect 4.101
Thurlkill 3.694
EMBOSS 3.745
Sillero 3.948
Patrickios 0.896
IPC_peptide 3.795
IPC2_peptide 3.935
IPC2.peptide.svr19 3.857
Protein with the highest isoelectric point:
>tr|A0A5N4B4P7|A0A5N4B4P7_PHOPY PlsC domain-containing protein OS=Photinus pyralis OX=7054 GN=PPYR_01300 PE=3 SV=1
MM1 pKa = 7.41 SSNRR5 pKa = 11.84 FLRR8 pKa = 11.84 VQGSAAIEE16 pKa = 4.0 YY17 pKa = 10.63 EE18 pKa = 4.26 PDD20 pKa = 3.08 QKK22 pKa = 11.46 SCFRR26 pKa = 11.84 MRR28 pKa = 11.84 GEE30 pKa = 3.89 YY31 pKa = 10.62 LKK33 pKa = 10.92 FPILKK38 pKa = 10.05 SILRR42 pKa = 11.84 ILSARR47 pKa = 11.84 VSSLGRR53 pKa = 11.84 LEE55 pKa = 4.71 CFGLRR60 pKa = 11.84 VLSLSVLDD68 pKa = 3.75 QFVFPLHH75 pKa = 5.03 LTEE78 pKa = 4.76 RR79 pKa = 11.84 VLFFKK84 pKa = 11.02 LNNRR88 pKa = 11.84 LDD90 pKa = 3.99 FGNLICNSKK99 pKa = 9.86 GRR101 pKa = 11.84 RR102 pKa = 11.84 ILSRR106 pKa = 11.84 ISGFPLYY113 pKa = 10.34 QQ114 pKa = 4.35
Molecular weight: 13.2 kDa
Isoelectric point according different methods:
IPC2.protein.svr19 9.349
IPC2_protein 9.604
IPC_protein 10.409
Toseland 10.57
ProMoST 10.277
Dawson 10.687
Bjellqvist 10.409
Wikipedia 10.891
Rodwell 10.877
Grimsley 10.745
Solomon 10.789
Lehninger 10.76
Nozaki 10.584
DTASelect 10.394
Thurlkill 10.584
EMBOSS 10.979
Sillero 10.628
Patrickios 10.628
IPC_peptide 10.804
IPC2_peptide 9.619
IPC2.peptide.svr19 8.502
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
14951
1
14952
7462682
50
18737
499.1
56.42
Amino acid frequency
Ala
Cys
Asp
Glu
Phe
Gly
His
Ile
Lys
Leu
5.771 ± 0.018
2.139 ± 0.026
5.384 ± 0.015
6.48 ± 0.032
4.121 ± 0.019
5.29 ± 0.027
2.538 ± 0.009
6.129 ± 0.016
6.667 ± 0.029
9.51 ± 0.03
Met
Asn
Gln
Pro
Arg
Ser
Thr
Val
Trp
Tyr
2.206 ± 0.009
5.311 ± 0.017
4.878 ± 0.027
4.028 ± 0.015
5.064 ± 0.016
7.814 ± 0.023
5.797 ± 0.017
6.388 ± 0.018
1.097 ± 0.007
3.388 ± 0.013
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