1. Recombinant Proteins
  2. Complement System
  3. Complement Regulatory Proteins
  4. Complement Factor H Related 5
  5. CFHR5 Protein, Human (HEK293, His)

CFHR5 Protein, Human (HEK293, His)

Cat. No.: HY-P70102
COA Handling Instructions

CFHR5 is a first-line complement regulator that is actively involved in the complex dynamics of the regulatory system. Dimeric CFHR5 has significant affinity for tissue-bound complement fragments, thereby challenging CFH. CFHR5 Protein, Human (HEK293, His) is the recombinant human-derived CFHR5 protein, expressed by HEK293 , with C-6*His labeled tag. The total length of CFHR5 Protein, Human (HEK293, His) is 551 a.a., with molecular weight of ~61.0 kDa.

For research use only. We do not sell to patients.

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Description

CFHR5 is a first-line complement regulator that is actively involved in the complex dynamics of the regulatory system. Dimeric CFHR5 has significant affinity for tissue-bound complement fragments, thereby challenging CFH. CFHR5 Protein, Human (HEK293, His) is the recombinant human-derived CFHR5 protein, expressed by HEK293 , with C-6*His labeled tag. The total length of CFHR5 Protein, Human (HEK293, His) is 551 a.a., with molecular weight of ~61.0 kDa.

Background

CFHR5 stands at the forefront of complement regulation, actively participating in the intricate dynamics of this regulatory system. In its dimerized forms, CFHR5 demonstrates a notable affinity for tissue-bound complement fragments, effectively challenging the physiological complement inhibitor CFH. This versatile regulator engages in a head-to-tail homodimeric configuration and forms heterodimers with CFHR1 or CFHR2, underlining its adaptable role in orchestrating complement-related processes. Moreover, CFHR5 exhibits the capacity to bind C3b in vitro, adding an additional layer to its repertoire of interactions and highlighting its intricate involvement in the regulation of complement pathways.

Species

Human

Source

HEK293

Tag

C-6*His

Accession

Q9BXR6 (E19-E569)

Gene ID
Molecular Construction
N-term
CFHR5 (E19-E569)
Accession # Q9BXR6
6*His
C-term
Synonyms
rHuComplement factor H-related protein 5/CFHR5, His; Complement factor H-related protein 5; CFHR5; CFHL5; FHR5
AA Sequence

EGTLCDFPKIHHGFLYDEEDYNPFSQVPTGEVFYYSCEYNFVSPSKSFWTRITCTEEGWSPTPKCLRMCSFPFVKNGHSESSGLIHLEGDTVQIICNTGYSLQNNEKNISCVERGWSTPPICSFTKGECHVPILEANVDAQPKKESYKVGDVLKFSCRKNLIRVGSDSVQCYQFGWSPNFPTCKGQVRSCGPPPQLSNGEVKEIRKEEYGHNEVVEYDCNPNFIINGPKKIQCVDGEWTTLPTCVEQVKTCGYIPELEYGYVQPSVPPYQHGVSVEVNCRNEYAMIGNNMITCINGIWTELPMCVATHQLKRCKIAGVNIKTLLKLSGKEFNHNSRIRYRCSDIFRYRHSVCINGKWNPEVDCTEKREQFCPPPPQIPNAQNMTTTVNYQDGEKVAVLCKENYLLPEAKEIVCKDGRWQSLPRCVESTAYCGPPPSINNGDTTSFPLSVYPPGSTVTYRCQSFYKLQGSVTVTCRNKQWSEPPRCLDPCVVSEENMNKNNIQLKWRNDGKLYAKTGDAVEFQCKFPHKAMISSPPFRAICQEGKFEYPICE

Molecular Weight

Approximately 61.0 kDa

Purity

Greater than 95% as determined by reducing SDS-PAGE

Appearance

Lyophilized powder

Formulation

Lyophilized from a 0.2 μm filtered solution of 20 mM PB, 150 mM NaCl, pH 7.4.

Endotoxin Level

<1 EU/μg, determined by LAL method.

Reconstitution

It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH2O. For long term storage it is recommended to add a carrier protein (0.1% BSA, 5% HSA, 10% FBS or 5% Trehalose).

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

CFHR5 Protein, Human (HEK293, 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.

  • Reconstitution Calculator

  • Dilution Calculator

  • Specific Activity Calculator

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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CFHR5 Protein, Human (HEK293, His)
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HY-P70102
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