Recombinant Escherichia coli K99 fimbrial protein(fanC)

In Stock
Code CSB-EP322992ENLe1
Size US$2632Purchase it in Cusabio online store
(only available for customers from the US)
  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.
  • Based on the SEQUEST from database of E.coli host and target protein, the LC-MS/MS Analysis result of CSB-EP322992ENLe1 could indicate that this peptide derived from E.coli-expressed Escherichia coli fanC.
  • Based on the SEQUEST from database of E.coli host and target protein, the LC-MS/MS Analysis result of CSB-EP322992ENLe1 could indicate that this peptide derived from E.coli-expressed Escherichia coli fanC.
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Product Details

Purity Greater than 90% as determined by SDS-PAGE.
Target Names fanC
Uniprot No. P18103
Research Area others
Alternative Names fanCK99 fimbrial protein
Species Escherichia coli
Source E.coli
Expression Region 23-181aa
Note: The complete sequence including tag sequence, target protein sequence and linker sequence could be provided upon request.
Mol. Weight 16.5kDa
Protein Length Full Length of Mature Protein
Tag Info Tag-Free
Form Liquid or Lyophilized powder
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
Buffer If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol.
Note: If you have any special requirement for the glycerol content, please remark when you place the order.
If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.
Reconstitution We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. Our default final concentration of glycerol is 50%. Customers could use it as reference.
and FAQs
Protein FAQs
Storage Condition Store at -20°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Shelf Life The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Lead Time Basically, we can dispatch the products out in 3-7 working days after receiving your orders. Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
Notes Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Datasheet & COA Please contact us to get it.

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For protein: CSB-EP322992ENLe1 / RPC20557
However, I do have a question about the product. You say it comes in a buffer, but what does the buffer contains? I have looked for this protein with other suppliers as well and they all supply it lyophilized.
On your site it says expiry date: 12 months in lyophilized form; 6 months in solution form. This suggest it comes lyophilized?
Can you also provide me information about the suitability for MALDI-TOF MS? It is of high importance that I can use it for this technique because I want to determine the specific K99 peak.

Very nice to receive your inquiry. Actually we have two lots of stock for this protein, one lot is Lyophilized Powder, and another lot is Liquid Form.
The shelf life of Lyophilized Powder is 12 months, and the shelf of Liquid Form is 6 months.
1. Product Details & Stock Info
Code: CSB-EP322992ENLe1
Name: Recombinant Escherichia coli K99 fimbrial protein(fanC)
Expression Region: 23-181aa; Full Length of Mature Protein
Tag Info: NO-tagged
Expression Sequence:


Product Type: Developed Recombiant Protein
1) Delivery Form: Lyophilized Powder
Buffer before Lyophilization: Lyophilized from a 0.2 μm filtered 10 mM Tris-HCl, 1 mM EDTA, pH 8.0
Endotoxin Removal: No
Aseptic Processing: No
Note: If your order size is 0.1mg *X, we could deliver Lyophilized Powder directly. If not, we suggest to deliver Liquid Form.
2) Delivery Form: Liquid
Storage Buffer: 100 mM Tris-HCl, 0.4M Arg, pH 8.0, 20% glycerol
Endotoxin Removal: No
Aseptic Processing: No
2. LC-MS Info
The LC-MS we currently perform is based on the theoretical sequence in the database and then spliced. You meant that you wanted to compare the actual peak map.
The positive control of mass spectrometry does not require much, as long as it can ensure that there is no problem with the protein, the sequencing is correct, or the mass spectrometry itself is also performed,
then it can be applied. The sequencing of our stock protein is correct, so it can be used in the your application in theory.
But to get the same peak map, two conditions need to be met: 1. There is no extra residual amino acid. 2. For post-translational modification, the structure is the same as the native protein.
1) Our no-tagged protein CSB-EP322992ENLe1 was obtained by Sumo enzyme digestion. There are several amino acid residues (GSEFRT) after the cleavage.
So the N-terminus of the spectrum is a little different. But it is no problem to make a qualitative judgment.
2) For this protein, itself is the E. coli 's own protein, structure is almost the same with the natural protein modification.

Target Data

Function Fimbriae (also called pili), polar filaments radiating from the surface of the bacterium to a length of 0.5-1.5 micrometers and numbering 100-300 per cell, enable bacteria to colonize the epithelium of specific host organs.; FUNCTION
Subcellular Location Fimbrium
Protein Families Fimbrial protein family


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