LTBP-2 (Latent TGF-beta Binding Protein 2; also C14orf141) is a 220-250 kDa secreted glycoprotein member of the LTBP family of proteins. In SDS-PAGE and under reducing conditions, LTBP-2 runs at 220-250 kDa; under nonreducing conditions, LTBP-2 runs between 205-220 kDa. Although it is described as being a TGF-beta binding protein, it does not possess the ability to bind covalently to TGF-beta. Instead, it appears to bind to heparin sulfate moieties on syndecan-4 and perlecan, plus fibrillin-1 and fibulin-5, suggesting a role in both elastic fiber formation and the maintenance of basement membrane integrity. In addition, LTPB-2 is now known to form a complex with PC5/6A intracellularly, and upon secretion, dampen PC5 activation in the extracellular environment. Cells known to express LTBP-2 include lens and nonpigmented ciliary epithelium, fibroblasts, vascular smooth muscle and chondrocytes. Mature human LTBP-2 is 1786 amino acids (aa) in length (aa 36-1821). It possesses three heparin-binding regions (aa 94-115, 232-249, and 344-354), plus 20 EGF-like domains (aa 187-1818) that contain four interspersed TGF-beta type binding segments. Over aa 36-1821, human LTBP-2 shares 80% aa sequence identity with mouse LTBP-2.
Human Latent TGF‑ beta bp2/LTBP‑2 Antibody
R&D Systems | Catalog # AF3850
Key Product Details
Species Reactivity
Validated:
Human
Cited:
Human
Applications
Validated:
Western Blot
Cited:
Western Blot
Label
Unconjugated
Antibody Source
Polyclonal Goat IgG
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Product Specifications
Immunogen
Mouse myeloma cell line NS0-derived recombinant human Latent TGF‑ beta bp2/LTBP‑2
Gln36-Glu1821
Accession # Q14767
Gln36-Glu1821
Accession # Q14767
Specificity
Detects human Latent TGF‑ beta bp2/LTBP‑2 in direct ELISAs and Western blots. In direct ELISAs, approximately 40% cross-reactivity with recombinant mouse (rm) LTBP-2 is observed, and less than 1% cross-reactivity with recombinant human LTBP-1 and rmLTBP-4 is observed.
Clonality
Polyclonal
Host
Goat
Isotype
IgG
Scientific Data Images for Human Latent TGF‑ beta bp2/LTBP‑2 Antibody
Detection of Human Latent TGF‑ beta bp2/LTBP‑2 by Western Blot.
Western blot shows lysates of HFL1 human fetal lung fibroblast cell line and human heart tissue. PVDF membrane was probed with 1 µg/mL of Goat Anti-Human Latent TGF-beta bp2/LTBP-2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF3850) followed by HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF017). A specific band was detected for Latent TGF-beta bp2/LTBP-2 at approximately 210-255 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.Applications for Human Latent TGF‑ beta bp2/LTBP‑2 Antibody
Application
Recommended Usage
Western Blot
1 µg/mL
Sample: HFL1 human fetal lung fibroblast cell line and human heart tissue
Sample: HFL1 human fetal lung fibroblast cell line and human heart tissue
Reviewed Applications
Read 1 review rated 5 using AF3850 in the following applications:
Formulation, Preparation, and Storage
Purification
Antigen Affinity-purified
Reconstitution
Sterile PBS to a final concentration of 0.2 mg/mL. For liquid material, refer to CoA for concentration.
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Formulation
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.
Shipping
Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
- 12 months from date of receipt, -20 to -70 °C as supplied.
- 1 month, 2 to 8 °C under sterile conditions after reconstitution.
- 6 months, -20 to -70 °C under sterile conditions after reconstitution.
Calculators
Background: Latent TGF-beta bp2/LTBP-2
Alternate Names
Latent TGFbeta bp2, LTBP-2, LTBP2
Entrez Gene IDs
4053 (Human)
Gene Symbol
LTBP2
UniProt
Additional Latent TGF-beta bp2/LTBP-2 Products
Product Documents for Human Latent TGF‑ beta bp2/LTBP‑2 Antibody
Certificate of Analysis
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Note: Certificate of Analysis not available for kit components.
Product Specific Notices for Human Latent TGF‑ beta bp2/LTBP‑2 Antibody
For research use only
Citations for Human Latent TGF‑ beta bp2/LTBP‑2 Antibody
Customer Reviews for Human Latent TGF‑ beta bp2/LTBP‑2 Antibody (1)
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1 Customer Rating
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Protocols
Find general support by application which include: protocols, troubleshooting, illustrated assays, videos and webinars.
- Cellular Response to Hypoxia Protocols
- R&D Systems Quality Control Western Blot Protocol
- Troubleshooting Guide: Western Blot Figures
- Western Blot Conditions
- Western Blot Protocol
- Western Blot Protocol for Cell Lysates
- Western Blot Troubleshooting
- Western Blot Troubleshooting Guide
- View all Protocols, Troubleshooting, Illustrated assays and Webinars
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