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  4. Clumping factor B Protein, S. aureus (His)

Clumping factor B Protein, S. aureus (His)

Cat. No.: HY-P72291
COA Handling Instructions

Clumping factor B (ClfB) is a cell surface-associated protein implicated in virulence, playing a crucial role in bacterial pathogenicity by promoting bacterial attachment to both alpha- and beta-chains of human fibrinogen. Its significance lies in inducing the formation of bacterial clumps, a mechanism that contributes to the pathogenicity and virulence of the bacteria. Clumping factor B Protein, S. aureus (His) is the recombinant Staphylococcus aureus-derived Clumping factor B protein, expressed by E. coli , with N-His labeled tag. The total length of Clumping factor B Protein, S. aureus (His) is 498 a.a., with molecular weight of ~80 kDa.

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Description

Clumping factor B (ClfB) is a cell surface-associated protein implicated in virulence, playing a crucial role in bacterial pathogenicity by promoting bacterial attachment to both alpha- and beta-chains of human fibrinogen. Its significance lies in inducing the formation of bacterial clumps, a mechanism that contributes to the pathogenicity and virulence of the bacteria. Clumping factor B Protein, S. aureus (His) is the recombinant Staphylococcus aureus-derived Clumping factor B protein, expressed by E. coli , with N-His labeled tag. The total length of Clumping factor B Protein, S. aureus (His) is 498 a.a., with molecular weight of ~80 kDa.

Background

Clumping factor B (ClfB) is a cell surface-associated protein crucial for bacterial virulence, as it plays a pivotal role in promoting bacterial attachment. It specifically binds to both alpha- and beta-chains of human fibrinogen, facilitating the formation of bacterial clumps. This interaction is significant in the context of host-pathogen interactions, as it enhances the adherence of bacteria to fibrinogen, contributing to the pathogenicity of the organism. The ability of ClfB to induce bacterial clumps suggests its involvement in the early stages of infection and highlights its potential as a target for therapeutic interventions aimed at disrupting bacterial adherence and virulence (

Species

Staphylococcus aureus

Source

E. coli

Tag

N-His

Accession

Q6GDH2 (S45-N542)

Gene ID

/

Molecular Construction
N-term
His
Clumping factor B (S45-N542)
Accession # Q6GDH2
C-term
Synonyms
Fibrinogen receptor B; Fibrinogen-binding protein B
AA Sequence

SEQSNDTTQSSKNNASADSEKNNTIETPQLNTTANDTSDISANTNSANVDSTAKTMSTQTSNTTTTEPASTNETPQPTAIKDQATAAKMQDQTVPQEANSQVDNKTTNDANNIATNSELKNPQTLDLPQSSPQTISNAQGTSKPSVRTRAVRSLAVAEPVVNAADAKGTNVNDKVTASDFKLEKTAFDPNQSGNTFMAANFKVTGQVKSGDYFTAKLPDSVTGNGDVDYSNSNNTMPIADIKSTNGDVVAKATYDILTKTYTFVFTDYVNDKENINGQFSLPLFTDRAKAPKSGTYDANINIADEMFDNKITYNYSSPIAGIDKPNGANISSQIIGVDTASGQNTYKQTVFVNPKQRVLGNTWVYIKGYQDKIEESSGKVSATDTKLRIFEVNDTSKLSDSYYADPNDSNLKEVTGEFKDKISYKYDNVASINFGDINKTYVVLVEGHYDNTGKNLKTQVIQENIDPATGKDYSIFGWNNENVVRYGGGSADGDSAVN

Molecular Weight

Approximately 80 kDa

Purity

Greater than 90% as determined by reducing SDS-PAGE.

Appearance

Lyophilized powder.

Formulation

Lyophilized from 0.22 μm filtered solution in PBS, pH 7.4.

Endotoxin Level

<1.0 EU/μg, determined by LAL method.

Reconstitution

It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH2O.

Storage & Stability

Stored at -20°C for 2 years. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.

Shipping

Room temperature in continental US; may vary elsewhere.

Documentation

Clumping factor B Protein, S. aureus (His) Related Classifications

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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The reconstitution calculator equation

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration
= ÷

The dilution calculator equation

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
× = ×
C1   V1   C2   V2

The specific activity calculator equation

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)
Unit/mg = 106 ÷ ng/mL

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Clumping factor B Protein, S. aureus (His)
Cat. No.:
HY-P72291
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