IGFBP4 Recombinant antibody

IGFBP4 Uni-rAb^TM Recombinant Antibody for WB, IHC, FC (Intra), ELISA

Host / Isotype

Rabbit / IgG

Reactivity

human

Applications

WB, IHC, FC (Intra), ELISA

Conjugate

Unconjugated

CloneNo.

230543F8

Cat no : 83200-3-RR

Synonyms

IBP 4, HT29 IGFBP, Deb2, BP4, BP 4

---

Validation Data Gallery

• 

  WB analysis using 83200-3-RR

  Various lysates were subjected to SDS PAGE followed by western blot with 83200-3-RR (IGFBP4 antibody) at dilution of 1:10000 incubated at room temperature for 1.5 hours.

• 

  WB analysis using 83200-3-RR

  Various lysates were subjected to SDS PAGE followed by western blot with 83200-3-RR (IGFBP4 antibody) at dilution of 1:10000 incubated at room temperature for 1.5 hours.

• 

  IHC staining of human intrahepatic cholangiocarcinoma using 83200-3-RR

  Immunohistochemical analysis of paraffin-embedded human intrahepatic cholangiocarcinoma tissue slide using 83200-3-RR (IGFBP4 antibody) at dilution of 1:200 (under 20x lens). Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0).

• 

  FC experiment of A549 using 83200-3-RR

  1x10^6 A549 cells were intracellularly stained with 0.4 ug IGFBP4 Recombinant antibody (83200-3-RR, Clone:230543F8) and CoraLite®488-Conjugated AffiniPure Goat Anti-Rabbit IgG(H+L) (SA00013-2)(red), or 0.4 ug Isotype Control (blue). Cells were fixed with 4% PFA and permeabilized with Flow Cytometry Perm Buffer (PF00011-C).

• 

  Affinity and Kinetic Characterization of 83200-3-RR

  Biolayer interferometry (BLl) kinetic assays of 83200-3-RR against Human IGFBP4 were performed. The affinity constant is 0.776 nM.

---

Tested Applications

• Positive WB detected in: MDA-MB-231 cells, K-562 cells
• Positive IHC detected in: human intrahepatic cholangiocarcinoma tissue; Note: suggested antigen retrieval with TE buffer pH 9.0; (*) Alternatively, antigen retrieval may be performed with citrate buffer pH 6.0
• Positive FC (Intra) detected in: A549 cells

Recommended dilution

• Western Blot (WB): WB : 1:5000-1:50000
• Immunohistochemistry (IHC): IHC : 1:50-1:500
• Flow Cytometry (FC) (INTRA): FC (INTRA) : 0.40 ug per 10^6 cells in a 100 µl suspension

It is recommended that this reagent should be titrated in each testing system to obtain optimal results.

Sample-dependent, Check data in validation data gallery.

Product Information

The immunogen of 83200-3-RR is IGFBP4 Fusion Protein expressed in E. coli.

• Tested Reactivity: human
• Host / Isotype: Rabbit / IgG
• Class: Recombinant
• Type: Antibody
• Immunogen: Fusion Protein
• Full Name: insulin-like growth factor binding protein 4
• Calculated Molecular Weight: 28 kDa
• Observed Molecular Weight: 28-40 kDa
• GenBank Accession Number: NM_001552.3
• Gene Symbol: IGFBP4
• Gene ID (NCBI): 3487
• Conjugate: Unconjugated
• Form: Liquid
• Purification Method: Protein A purfication
• Storage Buffer: PBS with 0.02% sodium azide and 50% glycerol pH 7.3.
• Storage Conditions: Store at -20°C. Stable for one year after shipment. Aliquoting is unnecessary for -20^oC storage. 20ul sizes contain 0.1% BSA.

Background Information

IGFBP4, also named as IBP4, is a 258 amino acid protein, which contains one IGFBP N-terminal domain and one thyroglobulin type-1 domain. IGFBP4 is the smallest member of the insulin-like growth factor binding protein family (IGFBP). It is a hepatic protein that plays a role in modulating the activity and bioavailability of IGF-I. The expression of IGFBP4 was found to increase under conditions of hypoxia. IGFBP4 is highly expressed in adipocytes and osteoblasts and is inhibitory of IGFs in vitro. (PMID: 28938423, PMID: 34646401).