1. Recombinant Proteins
  2. Cytokines and Growth Factors Animal-free Recombinant Proteins
  3. TGF-beta Superfamily
  4. Growth Differentiation Factor
  5. Growth Differentiation Factor 5 (GDF-5)
  6. Animal-Free GDF-5 Protein, Human (His)

Animal-Free GDF-5 Protein, Human (His)

Cat. No.: HY-P700023AF
COA Handling Instructions

The GDF-5 protein is critical in bone and cartilage formation, complexly regulating chondrogenic tissue differentiation through dual pathways. It positively affects cartilage formation by inducing SMAD protein signaling by binding to BMPR1B and BMPR1A. Animal-Free GDF-5 Protein, Human (His) is the recombinant human-derived animal-FreeGDF-5 protein, expressed by E. coli , with C-His labeled tag. The total length of Animal-Free GDF-5 Protein, Human (His) is 120 a.a., with molecular weight of ~14.52 kDa.

Animal-free recombinant proteins offer high consistency and stability, whithout using or contacting of any animal-derived materials and reagents.

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

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Description

The GDF-5 protein is critical in bone and cartilage formation, complexly regulating chondrogenic tissue differentiation through dual pathways. It positively affects cartilage formation by inducing SMAD protein signaling by binding to BMPR1B and BMPR1A. Animal-Free GDF-5 Protein, Human (His) is the recombinant human-derived animal-FreeGDF-5 protein, expressed by E. coli , with C-His labeled tag. The total length of Animal-Free GDF-5 Protein, Human (His) is 120 a.a., with molecular weight of ~14.52 kDa.

Background

GDF-5 Protein plays a pivotal role in bone and cartilage formation, intricately regulating chondrogenic tissue differentiation through dual pathways. Firstly, it positively influences chondrogenic tissue differentiation by binding with high affinity to BMPR1B and with lower affinity to BMPR1A, leading to the induction of SMAD1-SMAD5-SMAD8 complex phosphorylation and subsequent SMAD protein signaling transduction. Simultaneously, it negatively regulates chondrogenic differentiation through interaction with NOG. This protein is essential for preventing excessive muscle loss upon denervation, a function mediated by phosphorylated SMAD1/5/8. Additionally, GDF-5 binds bacterial lipopolysaccharide (LPS) and mediates LPS-induced inflammatory responses, including TNF secretion by monocytes. Structurally, it forms homodimers linked by disulfide bonds and interacts with serine proteases HTRA1 and HTRA3. Following LPS binding, GDF-5 may form a complex with CXCR4, HSP90AA1, and HSPA8. Moreover, it interacts with high affinity with NOG to inhibit chondrogenesis and with BMPR1B and BMPR1A to positively regulate chondrocyte differentiation through SMAD-dependent signaling. Additionally, it engages in interactions with FBN1 and FBN2.

Biological Activity

Measure by its ability to induce alkaline phosphatase production by ATDC5 cells. The ED50 for this effect is <14 ng/mL

Species

Human

Source

E. coli

Tag

C-His

Accession

P43026 (A382-R501)

Gene ID
Molecular Construction
N-term
GDF-5 (A382-R501)
Accession # P43026
His
C-term
Synonyms
Cartilage-Derived Morphogenetic Protein-1; Growth/Differentiation Factor-5; GDF-5; CDMP-1
AA Sequence

MAPLATRQGKRPSKNLKARCSRKALHVNFKDMGWDDWIIAPLEYEAFHCEGLCEFPLRSHLEPTNHAVIQTLMNSMDPESTPPTCCVPTRLSPISILFIDSANNVVYKQYEDMVVESCGCR

Molecular Weight

Approximately 14.52 kDa

Purity

Greater than 95% as determined by reducing SDS-PAGE.

Appearance

Lyophilized powder.

Formulation

Lyophilized from a solution containing 20 mM sodium citrate, 0.2 MNaCl, pH 3.5.

Endotoxin Level

<0.1 EU per 1 μg of the protein by the 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
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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Product Name:
Animal-Free GDF-5 Protein, Human (His)
Cat. No.:
HY-P700023AF
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