Erythrobacter sp. QSSC1-22B

Taxonomy: cellular organisms; Bacteria; Proteobacteria; Alphaproteobacteria; Sphingomonadales; Erythrobacteraceae; Erythrobacter/Porphyrobacter group; Erythrobacter; unclassified Erythrobacter

Average proteome isoelectric point is 6.05

Get precalculated fractions of proteins

Acidic
pI < 6.8
6.8-7.4
pI > 7.4
Basic
    
All



Virtual 2D-PAGE plot for 3036 proteins (isoelectric point calculated using IPC2_protein)

Get csv file with sequences according to given criteria:
        -     Method 

     -  kDa    
                                                                                      

* 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|A0A1A7QIF4|A0A1A7QIF4_9SPHN Uncharacterized protein OS=Erythrobacter sp. QSSC1-22B OX=1860125 GN=A9995_08195 PE=4 SV=1
MM1 pKa = 7.46LLAAPLAAQDD11 pKa = 3.58AGAPGVRR18 pKa = 11.84AEE20 pKa = 4.15APEE23 pKa = 4.5LPEE26 pKa = 3.95STVFDD31 pKa = 3.75GDD33 pKa = 4.09YY34 pKa = 9.15LTVGIGVGYY43 pKa = 9.04GASYY47 pKa = 10.48SGSDD51 pKa = 3.57DD52 pKa = 3.09YY53 pKa = 11.39RR54 pKa = 11.84TFVLPIVQGSLAGVDD69 pKa = 3.36ISPRR73 pKa = 11.84PAGVALDD80 pKa = 4.97FIPDD84 pKa = 3.68PDD86 pKa = 3.79EE87 pKa = 4.4GVSFSFGPVIKK98 pKa = 10.49LNRR101 pKa = 11.84DD102 pKa = 3.11RR103 pKa = 11.84ADD105 pKa = 3.49LDD107 pKa = 4.46GIKK110 pKa = 10.75DD111 pKa = 3.94PVVEE115 pKa = 5.14AYY117 pKa = 10.55GEE119 pKa = 4.4LDD121 pKa = 3.28TAIEE125 pKa = 4.35VGPSAGVSFPQVLNAFDD142 pKa = 3.95SLSFSVEE149 pKa = 4.02AAWDD153 pKa = 3.42VAGAHH158 pKa = 7.12DD159 pKa = 4.57GMSVSPAITYY169 pKa = 7.5FTPLSRR175 pKa = 11.84GIAASLSLSTKK186 pKa = 10.78YY187 pKa = 10.29IDD189 pKa = 5.56DD190 pKa = 5.12DD191 pKa = 4.03YY192 pKa = 12.02ADD194 pKa = 4.07YY195 pKa = 10.75YY196 pKa = 11.45YY197 pKa = 11.02SVPATNAALPAADD210 pKa = 4.23VLPGFQADD218 pKa = 4.03GGFEE222 pKa = 4.15SAGVNVFMAFDD233 pKa = 4.39LNGDD237 pKa = 3.71VTDD240 pKa = 4.83GGLALIALGGYY251 pKa = 9.73SRR253 pKa = 11.84MLGDD257 pKa = 4.63AKK259 pKa = 10.77DD260 pKa = 3.76SPFTSIRR267 pKa = 11.84GEE269 pKa = 3.67ADD271 pKa = 2.88QFLGALGIGYY281 pKa = 7.14TFF283 pKa = 4.27

Molecular weight: 29.21 kDa
Isoelectric point according different methods:





Protein with the highest isoelectric point:
>tr|A0A1A7QFK8|A0A1A7QFK8_9SPHN Uncharacterized protein OS=Erythrobacter sp. QSSC1-22B OX=1860125 GN=A9995_13480 PE=4 SV=1
MM1 pKa = 7.45KK2 pKa = 9.61RR3 pKa = 11.84TFQPSNLVRR12 pKa = 11.84QRR14 pKa = 11.84RR15 pKa = 11.84HH16 pKa = 4.72GFFARR21 pKa = 11.84KK22 pKa = 7.44ATPGGRR28 pKa = 11.84NVLRR32 pKa = 11.84NRR34 pKa = 11.84RR35 pKa = 11.84RR36 pKa = 11.84RR37 pKa = 11.84GRR39 pKa = 11.84KK40 pKa = 6.15TLCAA44 pKa = 4.05

Molecular weight: 5.25 kDa
Isoelectric point according different methods:





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

3036

0

3036

946070

41

1567

311.6

33.79

Amino acid frequency

Ala

Cys

Asp

Glu

Phe

Gly

His

Ile

Lys

Leu

12.74 ± 0.065

0.819 ± 0.015

6.049 ± 0.032

6.306 ± 0.042

3.643 ± 0.029

8.841 ± 0.04

1.944 ± 0.022

5.025 ± 0.031

2.84 ± 0.04

10.046 ± 0.054

Met

Asn

Gln

Pro

Arg

Ser

Thr

Val

Trp

Tyr

2.479 ± 0.025

2.482 ± 0.025

5.137 ± 0.033

3.245 ± 0.024

7.288 ± 0.043

5.358 ± 0.031

5.21 ± 0.028

7.003 ± 0.034

1.402 ± 0.02

2.144 ± 0.021
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
See this proteome in: uniprot_link
Proteome-pI is available under Creative Commons Attribution-NoDerivs license, for more details see here

Reference: Kozlowski LP. Proteome-pI 2.0: Proteome Isoelectric Point Database Update. Nucleic Acids Res. 2021, doi: 10.1093/nar/gkab944 Contact: Lukasz P. Kozlowski