Caenorhabditis briggsae
Average proteome isoelectric point is 6.82
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 21755 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|G2J6X4|G2J6X4_CAEBR Protein CBG17140 OS=Caenorhabditis briggsae OX=6238 GN=CBG17140 PE=4 SV=1
MM1 pKa = 7.54 PRR3 pKa = 11.84 YY4 pKa = 9.99 SLLLLIIIPIANGYY18 pKa = 9.46 IFDD21 pKa = 4.27 PSRR24 pKa = 11.84 TRR26 pKa = 11.84 KK27 pKa = 9.8 VLIVPKK33 pKa = 10.46 NKK35 pKa = 10.4 NGWHH39 pKa = 7.16 DD40 pKa = 3.75 SATFAPIDD48 pKa = 4.5 PIQIGTQDD56 pKa = 3.41 WEE58 pKa = 4.44 DD59 pKa = 3.42 LTEE62 pKa = 3.92 VEE64 pKa = 5.03 RR65 pKa = 11.84 YY66 pKa = 9.41 YY67 pKa = 11.37 LEE69 pKa = 4.14 TKK71 pKa = 9.02 GTLRR75 pKa = 11.84 FSGSSAYY82 pKa = 10.27 DD83 pKa = 3.24 YY84 pKa = 11.67 GNQEE88 pKa = 4.46 LKK90 pKa = 10.79 DD91 pKa = 4.42 DD92 pKa = 4.54 YY93 pKa = 11.55 DD94 pKa = 4.06 VSDD97 pKa = 5.15 YY98 pKa = 11.02 IDD100 pKa = 4.54 EE101 pKa = 4.32 EE102 pKa = 4.41 DD103 pKa = 5.88 KK104 pKa = 11.51 EE105 pKa = 5.23 DD106 pKa = 4.86 DD107 pKa = 4.06 DD108 pKa = 4.91 EE109 pKa = 6.35 KK110 pKa = 11.55 GSGDD114 pKa = 3.54 YY115 pKa = 11.47 GDD117 pKa = 3.82 VSKK120 pKa = 11.15 EE121 pKa = 4.18 DD122 pKa = 3.6 EE123 pKa = 4.24 DD124 pKa = 4.55 SEE126 pKa = 5.0 YY127 pKa = 11.01 EE128 pKa = 4.36 GYY130 pKa = 10.9 LEE132 pKa = 6.29 DD133 pKa = 5.82 EE134 pKa = 4.69 FDD136 pKa = 5.63 DD137 pKa = 4.07 YY138 pKa = 12.06 DD139 pKa = 3.86 NQYY142 pKa = 11.24 EE143 pKa = 4.19 YY144 pKa = 11.48 DD145 pKa = 3.59 NYY147 pKa = 11.67
Molecular weight: 17.2 kDa
Isoelectric point according different methods:
IPC2.protein.svr19 3.695
IPC2_protein 3.795
IPC_protein 3.795
Toseland 3.579
ProMoST 3.961
Dawson 3.783
Bjellqvist 3.935
Wikipedia 3.719
Rodwell 3.617
Grimsley 3.49
Solomon 3.783
Lehninger 3.732
Nozaki 3.897
DTASelect 4.139
Thurlkill 3.63
EMBOSS 3.732
Sillero 3.923
Patrickios 1.163
IPC_peptide 3.77
IPC2_peptide 3.897
IPC2.peptide.svr19 3.803
Protein with the highest isoelectric point:
>tr|A8Y3V3|A8Y3V3_CAEBR Protein CBR-SNB-2 OS=Caenorhabditis briggsae OX=6238 GN=snb-2 PE=4 SV=1
LL1 pKa = 6.68 ITPSPAPIPALPVPIPHH18 pKa = 7.37 RR19 pKa = 11.84 PTPIPPPSALIQSPPAPIPPSPASIPPSPAPIPHH53 pKa = 7.35 PLAPIPLTPAAIPLPSAPIPPPPAPIQSSPALIPPPPAPIPPPPALIPPPPALIPPPPAPIPPSPAPIPPSPAPIPPPPPAPIPPPPAPIPPPPAPIPPPPAPIPPPPAPIPPPPAPIPPPSSPIPPPPAPIPPPPAPIPPPILRR198 pKa = 11.84 FHH200 pKa = 6.61 LHH202 pKa = 4.54 QLRR205 pKa = 11.84 FHH207 pKa = 6.51 LHH209 pKa = 4.2 QLRR212 pKa = 11.84 FHH214 pKa = 6.51 LHH216 pKa = 4.2 QLRR219 pKa = 11.84 FHH221 pKa = 6.51 LHH223 pKa = 4.2 QLRR226 pKa = 11.84 FHH228 pKa = 6.51 LHH230 pKa = 4.2 QLRR233 pKa = 11.84 FHH235 pKa = 6.51 LHH237 pKa = 4.2 QLRR240 pKa = 11.84 FHH242 pKa = 6.72 LHH244 pKa = 5.02 QLHH247 pKa = 6.23 LHH249 pKa = 4.91 QLRR252 pKa = 11.84 FHH254 pKa = 6.51 LHH256 pKa = 4.2 QLRR259 pKa = 11.84 FHH261 pKa = 6.51 LHH263 pKa = 4.2 QLRR266 pKa = 11.84 FHH268 pKa = 6.42 LHH270 pKa = 5.85 HH271 pKa = 6.88 LRR273 pKa = 11.84 FHH275 pKa = 6.37 LHH277 pKa = 4.47 QLRR280 pKa = 11.84 FHH282 pKa = 6.51 LHH284 pKa = 4.2 QLRR287 pKa = 11.84 FHH289 pKa = 6.51 LHH291 pKa = 4.2 QLRR294 pKa = 11.84 FHH296 pKa = 6.51 LHH298 pKa = 4.2 QLRR301 pKa = 11.84 FHH303 pKa = 6.74 LHH305 pKa = 4.42 QLL307 pKa = 3.48
Molecular weight: 33.8 kDa
Isoelectric point according different methods:
IPC2.protein.svr19 9.52
IPC2_protein 11.403
IPC_protein 13.013
Toseland 13.173
ProMoST 13.671
Dawson 13.173
Bjellqvist 13.173
Wikipedia 13.656
Rodwell 12.676
Grimsley 13.217
Solomon 13.671
Lehninger 13.583
Nozaki 13.173
DTASelect 13.173
Thurlkill 13.173
EMBOSS 13.671
Sillero 13.173
Patrickios 12.398
IPC_peptide 13.685
IPC2_peptide 12.676
IPC2.peptide.svr19 9.32
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
21727
28
21755
8683488
8
13580
399.1
45.03
Amino acid frequency
Ala
Cys
Asp
Glu
Phe
Gly
His
Ile
Lys
Leu
6.222 ± 0.02
1.963 ± 0.015
5.288 ± 0.017
6.851 ± 0.026
4.681 ± 0.016
5.342 ± 0.027
2.276 ± 0.009
5.971 ± 0.016
6.432 ± 0.02
8.476 ± 0.021
Met
Asn
Gln
Pro
Arg
Ser
Thr
Val
Trp
Tyr
2.639 ± 0.009
4.827 ± 0.012
5.08 ± 0.025
4.16 ± 0.019
5.368 ± 0.018
8.066 ± 0.025
5.788 ± 0.024
6.134 ± 0.015
1.121 ± 0.006
3.118 ± 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