Streptococcus infantis SK1302

Taxonomy: cellular organisms; Bacteria; Terrabacteria group; Firmicutes; Bacilli; Lactobacillales; Streptococcaceae; Streptococcus; Streptococcus infantis

Average proteome isoelectric point is 6.24

Get precalculated fractions of proteins

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



Virtual 2D-PAGE plot for 2102 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|E1M9D8|E1M9D8_9STRE Aminoglycoside 6-adenylyltransferase OS=Streptococcus infantis SK1302 OX=871237 GN=SIN_1529 PE=4 SV=1
MM1 pKa = 7.95RR2 pKa = 11.84KK3 pKa = 8.89YY4 pKa = 10.56QEE6 pKa = 4.57LSLEE10 pKa = 4.17QIIEE14 pKa = 4.12QVRR17 pKa = 11.84ADD19 pKa = 4.04QLTSDD24 pKa = 4.72DD25 pKa = 3.49FCLYY29 pKa = 10.55GKK31 pKa = 10.37EE32 pKa = 4.05DD33 pKa = 3.84GEE35 pKa = 4.42LALDD39 pKa = 3.64RR40 pKa = 11.84LYY42 pKa = 10.88WMSDD46 pKa = 3.38YY47 pKa = 11.06PDD49 pKa = 3.45VVEE52 pKa = 6.21DD53 pKa = 3.9RR54 pKa = 11.84DD55 pKa = 3.76IYY57 pKa = 10.27PADD60 pKa = 3.66VVEE63 pKa = 4.95QDD65 pKa = 3.74LQLVYY70 pKa = 10.87YY71 pKa = 9.89GEE73 pKa = 3.98QLIDD77 pKa = 3.63VLTVALEE84 pKa = 4.21EE85 pKa = 4.79KK86 pKa = 10.3PDD88 pKa = 3.98ASPQDD93 pKa = 3.49LVEE96 pKa = 4.06ALKK99 pKa = 10.84YY100 pKa = 8.84YY101 pKa = 8.9QQHH104 pKa = 6.83DD105 pKa = 3.62SFMPFEE111 pKa = 4.22PP112 pKa = 4.57

Molecular weight: 13.19 kDa
Isoelectric point according different methods:





Protein with the highest isoelectric point:
>tr|E1M6U0|E1M6U0_9STRE Regulator of sorbitol operon OS=Streptococcus infantis SK1302 OX=871237 GN=SIN_0641 PE=4 SV=1
MM1 pKa = 7.35KK2 pKa = 9.43RR3 pKa = 11.84TYY5 pKa = 10.24QPSKK9 pKa = 9.82LRR11 pKa = 11.84RR12 pKa = 11.84ARR14 pKa = 11.84KK15 pKa = 8.57HH16 pKa = 4.75GFRR19 pKa = 11.84NRR21 pKa = 11.84MSTKK25 pKa = 9.22NGRR28 pKa = 11.84RR29 pKa = 11.84VLAARR34 pKa = 11.84RR35 pKa = 11.84RR36 pKa = 11.84KK37 pKa = 8.87GRR39 pKa = 11.84KK40 pKa = 8.75VLAAA44 pKa = 4.31

Molecular weight: 5.27 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

2102

0

2102

473331

37

2363

225.2

25.3

Amino acid frequency

Ala

Cys

Asp

Glu

Phe

Gly

His

Ile

Lys

Leu

7.399 ± 0.073

0.612 ± 0.018

5.622 ± 0.053

7.374 ± 0.066

4.654 ± 0.055

6.539 ± 0.052

1.852 ± 0.027

7.142 ± 0.065

6.836 ± 0.05

10.1 ± 0.078

Met

Asn

Gln

Pro

Arg

Ser

Thr

Val

Trp

Tyr

2.556 ± 0.031

4.372 ± 0.043

3.356 ± 0.035

4.043 ± 0.035

4.06 ± 0.044

6.192 ± 0.051

5.567 ± 0.076

7.016 ± 0.05

0.935 ± 0.02

3.774 ± 0.047
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