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AB223287

Anti-FSTL1/FRP antibody [EPR21933-155]

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(11 Publications)

Rabbit Recombinant Monoclonal FSTL1/FRP antibody. Suitable for IP, WB and reacts with Rat, Mouse, Human samples. Cited in 11 publications.

View Alternative Names

FRP, FSTL1, Follistatin-related protein 1, Follistatin-like protein 1

4 Images
Immunoprecipitation - Anti-FSTL1/FRP antibody [EPR21933-155] (AB223287)
  • IP

Unknown

Immunoprecipitation - Anti-FSTL1/FRP antibody [EPR21933-155] (AB223287)

FSTL1/FRP was immunoprecipitated from 0.35 mg rat embryo lysate with ab223287 at 1/30 dilution. Western blot was performed from the immunoprecipitate using ab223287 at 1/1000 dilution. VeriBlot for IP Detection Reagent (HRP) (ab131366), was used for detection at 1/5000 dilution.
Lane 1 : Rat embryo lysate 10 μg (Input).
Lane 2 : ab223287 IP in rat embryo lysate (+).
Lane 3 : Rabbit monoclonal IgG (ab172730) instead of ab223287 in rat embryo lysate (-).

Blocking/Dilution buffer and concentration : 5% NFDM/TBST.
Exposure time : 1 minute.

The molecular mass observed is consistent with what has been described in the literature (PMID : 28574994).

All lanes:

Immunoprecipitation - Anti-FSTL1/FRP antibody [EPR21933-155] (ab223287)

Predicted band size: 35 kDa

Observed band size: 43-55 kDa

false

Western blot - Anti-FSTL1/FRP antibody [EPR21933-155] (AB223287)
  • WB

Unknown

Western blot - Anti-FSTL1/FRP antibody [EPR21933-155] (AB223287)

Blocking/diluting buffer and concentration : 5% NFDM/TBST.

Exposure times :
Lane 1 and 2 : 3 minutes;
Lane 3 : 15 seconds.

The molecular mass observed is consistent with what has been described in the literature (PMID : 27234440).

All lanes:

Western blot - Anti-FSTL1/FRP antibody [EPR21933-155] (ab223287) at 1/1000 dilution

Lane 1:

Human serum at 20 µg

Lane 2:

Mouse serum at 20 µg

Lane 3:

Rat serum at 20 µg

Secondary

Lanes 1 - 2:

Western blot - VeriBlot for IP Detection Reagent (HRP) (<a href='/en-us/products/reagents/veriblot-for-ip-detection-reagent-hrp-ab131366'>ab131366</a>) at 1/1000 dilution

Lane 3:

Western blot - Goat Anti-Rabbit IgG H&L (HRP) (<a href='/en-us/products/secondary-antibodies/goat-rabbit-igg-h-l-hrp-ab97051'>ab97051</a>) at 1/100000 dilution

Predicted band size: 35 kDa

Observed band size: 40-50 kDa

false

Western blot - Anti-FSTL1/FRP antibody [EPR21933-155] (AB223287)
  • WB

Lab

Western blot - Anti-FSTL1/FRP antibody [EPR21933-155] (AB223287)

Western blot : Anti-FSTL1/FRP antibody [EPR21933-155] ab223287 staining at 1/1000 dilution, shown in green; Mouse anti alpha Tubulin (ab7291) loading control staining at 1/20,000 dilution, shown in magenta. A band was observed at 40 kDa in Wild-type HeLa cell lysates with no signal observed at this size in FSTL1 knockout HeLa cell line. To generate this image, samples were run on an SDS-PAGE gel then transferred onto a nitrocellulose membrane. Membranes were blocked in 5pc Milk in TBS-0.1 % Tween® 20 (TBS-T) before incubation with primary antibodies overnight at 4°C. Blots were washed four times in TBS-T, incubated with secondary antibodies for 1 h at room temperature, washed again four times then imaged. Secondary antibodies used were Goat anti-Rabbit 800CW & Goat anti-Mouse 680RD at 1/20,000 dilution.

All lanes:

Western blot - Anti-FSTL1/FRP antibody [EPR21933-155] (ab223287) at 1/1000 dilution

Lane 1:

Wild-type HeLa at 20 µg

Lane 2:

Human FSTL1 knockout HeLa cell line at 20 µg

Lane 3:

A431 at 20 µg

Lane 4:

Ramos at 20 µg

Secondary

All lanes:

Goat anti-Rabbit 800CW & Goat anti-Mouse 680RD at 1/20000 dilution

Predicted band size: 40 kDa

Observed band size: 40 kDa

false

Western blot - Anti-FSTL1/FRP antibody [EPR21933-155] (AB223287)
  • WB

Unknown

Western blot - Anti-FSTL1/FRP antibody [EPR21933-155] (AB223287)

Blocking/diluting buffer and concentration : 5% NFDM/TBST.

The molecular mass observed is consistent with what has been described in the literature (PMID : 28574994).

Negative control : Rat liver (PMID : 20861081).

All lanes:

Western blot - Anti-FSTL1/FRP antibody [EPR21933-155] (ab223287) at 1/1000 dilution

Lane 1:

Rat E14 embryo lysate at 20 µg

Lane 2:

Mouse E14 embryo lysate at 20 µg

Lane 3:

C6 (Rat glial tumor cell line) cell lysate at 20 µg

Lane 4:

Rat liver lysate at 20 µg

Secondary

All lanes:

Western blot - Goat Anti-Rabbit IgG H&L (HRP) (<a href='/en-us/products/secondary-antibodies/goat-rabbit-igg-h-l-hrp-ab97051'>ab97051</a>) at 1/100000 dilution

Predicted band size: 35 kDa

Observed band size: 43-45 kDa

false

Exposure time: 48s

Key facts

Host species

Rabbit

Clonality

Monoclonal

Clone number

EPR21933-155

Isotype

IgG

Carrier free

No

Reacts with

Mouse, Rat, Human

Applications

WB, IP

applications

Immunogen

The exact immunogen used to generate this antibody is proprietary information.

Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Species", "Dilution Info", "Notes"], "tabs": { "all-applications": {"fullname" : "All Applications", "shortname": "All Applications"}, "IP" : {"fullname" : "Immunoprecipitation", "shortname":"IP"}, "WB" : {"fullname" : "Western blot", "shortname":"WB"} }, "product-promise": { "all": "all", "testedAndGuaranteed": "tested", "guaranteed": "expected", "predicted": "predicted", "notRecommended": "not-recommended" } }, "values": { "Human": { "IP-species-checked": "guaranteed", "IP-species-dilution-info": "", "IP-species-notes": "", "WB-species-checked": "testedAndGuaranteed", "WB-species-dilution-info": "1/1000", "WB-species-notes": "<p></p>" }, "Mouse": { "IP-species-checked": "guaranteed", "IP-species-dilution-info": "", "IP-species-notes": "", "WB-species-checked": "testedAndGuaranteed", "WB-species-dilution-info": "1/1000", "WB-species-notes": "<p></p>" }, "Rat": { "IP-species-checked": "testedAndGuaranteed", "IP-species-dilution-info": "1/30", "IP-species-notes": "<p></p>", "WB-species-checked": "testedAndGuaranteed", "WB-species-dilution-info": "1/1000", "WB-species-notes": "<p></p>" } } }

Product details

Patented technology
Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMAb® patents.

What are the advantages of a recombinant monoclonal antibody?
This product is a recombinant monoclonal antibody, which offers several advantages including:

  • - High batch-to-batch consistency and reproducibility
  • - Improved sensitivity and specificity
  • - Long-term security of supply
  • - Animal-free batch production

For more information, read more on recombinant antibodies.

Properties and storage information

Form
Liquid
Purification technique
Affinity purification Protein A
Storage buffer
pH: 7.2 - 7.4 Preservative: 0.01% Sodium azide Constituents: PBS, 40% Glycerol (glycerin, glycerine), 0.05% BSA
Shipped at conditions
Blue Ice
Appropriate short-term storage duration
1-2 weeks
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
-20°C
Aliquoting information
Upon delivery aliquot
Storage information
Avoid freeze / thaw cycle

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

FSTL1 also known as FRP is a protein that plays an important role in various cellular functions. The protein is a glycoprotein with a molecular mass of approximately 32 kDa and is expressed in a variety of tissues including heart lung and placenta. FSTL1 contains several domains that facilitate its interaction with other proteins and cellular components. It is located both intracellularly and secreted in the extracellular matrix contributing to its role in cell signaling and structural integrity.
Biological function summary

FSTL1 serves as a modulator in inflammatory and developmental processes. It is a part of a complex that regulates immune responses and cell growth. The protein has been shown to affect the activity of multiple growth factors including Bone Morphogenetic Proteins (BMPs) revealing its regulatory capacity in tissue development and repair. FSTL1 can influence cell differentiation proliferation and survival highlighting its significance in maintaining cellular homeostasis.

Pathways

FSTL1 has important roles in the regulation of the BMP signaling and Wnt pathways. In the BMP pathway FSTL1 interacts with other signaling molecules to modulate pathway intensity and cellular outcomes. The protein links with BMP proteins to influence processes like bone formation and tissue repair. In the Wnt pathway FSTL1 can modulate key interactions that affect cellular proliferation and development. Through these pathways FSTL1 also relates to proteins such as TGF-beta which participate in various cellular processes.

FSTL1 has relevance in conditions such as rheumatoid arthritis and pulmonary hypertension. The protein shows increased expression in inflammatory environments indicating its involvement in rheumatoid arthritis where it engages with immune response pathways. The connection with pulmonary hypertension also positions FSTL1 as a significant factor in cardiovascular pathologies. In both conditions FSTL1 interacts with cytokines and other immune-related proteins influencing disease progression and response to treatment.

Product protocols

For this product, it's our understanding that no specific protocols are required. You can visit:

Target data

Secreted glycoprotein that is involved in various physiological processes, such as angiogenesis, regulation of the immune response, cell proliferation and differentiation (PubMed : 22265692, PubMed : 29212066). Plays a role in the development of the central nervous system, skeletal system, lungs, and ureter (By similarity). Promotes endothelial cell survival, migration and differentiation into network structures in an AKT-dependent manner. Also promotes survival of cardiac myocytes (By similarity). Initiates various signaling cascades by activating different receptors on the cell surface such as DIP2A, TLR4 or BMP receptors (PubMed : 20054002, PubMed : 22265692).
See full target information FSTL1

Publications (11)

Recent publications for all applications. Explore the full list and refine your search

Journal of translational medicine 23:232 PubMed40011941

2025

FSTL1 accelerates nucleus pulposus-derived mesenchymal stem cell apoptosis in intervertebral disc degeneration by activating TGF-β-mediated Smad2/3 phosphorylation.

Applications

Unspecified application

Species

Unspecified reactive species

Xu Yan,Jing-Yu Ding,Ren-Jie Zhang,Yan-Xin Wang,Lu-Ping Zhou,Hua-Qing Zhang,Liang Kang,Chong-Yu Jia,Xiao-Ying Liu,Cai-Liang Shen

Cellular and molecular biology (Noisy-le-Grand, France) 69:137-142 PubMed38279459

2024

The effect of thalidomide on the invasive ability of gastric cancer cells by regulating miR-524-5p/FSTL1.

Applications

Unspecified application

Species

Unspecified reactive species

Xiaowei Qin,Jinjie Zhang,Mengmeng Wang,Yafei Feng,Yanbo Zhao,Huipeng Zhang,Wei Guo

Advanced science (Weinheim, Baden-Wurttemberg, Germany) 10:e2206758 PubMed37282819

2023

From Phenomenon to Essence: A Newly Involved lncRNA Kcnq1ot1 Protective Mechanism of Bone Marrow Mesenchymal Stromal Cells in Liver Cirrhosis.

Applications

Unspecified application

Species

Unspecified reactive species

Hanjing Zhangdi,Yanan Jiang,Yang Gao,Shuang Li,Ruiling Xu,Jing Shao,Jingyang Liu,Ying Hu,Xu Zhang,Xiaoyu Zhang,Lei Zhao,Jihan Qi,Xinyu Geng,Shizhu Jin

Journal of clinical laboratory analysis 36:e24401 PubMed35373391

2022

Hsa_circ_0058129 regulates papillary thyroid cancer development via miR-873-5p/follistatin-like 1 axis.

Applications

Unspecified application

Species

Unspecified reactive species

Xiangrong Tan,Jiazheng Zhao,Jianlin Lou,Wen Zheng,Peng Wang

Annals of translational medicine 10:223 PubMed35280389

2022

Identification of differentially expressed and methylated genes and construction of a co-expression network in age-related macular degeneration.

Applications

Unspecified application

Species

Unspecified reactive species

Gaohua Liang,Wenhao Ma,Yanni Luo,Jiayang Yin,Lili Hao,Jingxiang Zhong

Frontiers in cell and developmental biology 9:757068 PubMed34957094

2021

FSTL1-USP10-Notch1 Signaling Axis Protects Against Cardiac Dysfunction Through Inhibition of Myocardial Fibrosis in Diabetic Mice.

Applications

Unspecified application

Species

Unspecified reactive species

Linhe Lu,Jipeng Ma,Yang Liu,Yalan Shao,Xiang Xiong,Weixun Duan,Erhe Gao,Qianli Yang,Shasha Chen,Jian Yang,Jun Ren,Qijun Zheng,Jincheng Liu

Journal of cellular and molecular medicine 25:7146-7156 PubMed34190406

2021

TNF-α induces up-regulation of MicroRNA-27a via the P38 signalling pathway, which inhibits intervertebral disc degeneration by targeting FSTL1.

Applications

Unspecified application

Species

Unspecified reactive species

Jie Shi,Shaoyi Wang,Qiting He,Kaiwen Liu,Wei Zhao,Qing Xie,Lei Cheng

Cell cycle (Georgetown, Tex.) 20:914-926 PubMed33843447

2021

Circular RNA circ_HECTD1 regulates cell injury after cerebral infarction by miR-27a-3p/FSTL1 axis.

Applications

Unspecified application

Species

Unspecified reactive species

Zhenduo Zhang,Jinbo He,Baoliang Wang

Aging 13:8643-8664 PubMed33714952

2021

Follistatin-like protein 1 functions as a potential target of gene therapy in proliferative diabetic retinopathy.

Applications

Unspecified application

Species

Unspecified reactive species

Rui Niu,Ze-Tong Nie,Lin Liu,Yu-Wen Chang,Jian-Qun Shen,Qiong Chen,Li-Jie Dong,Bo-Jie Hu

PLoS pathogens 16:e1009053 PubMed33270808

2020

A vector whitefly endocytic receptor facilitates the entry of begomoviruses into its midgut cells via binding to virion capsid proteins.

Applications

Unspecified application

Species

Unspecified reactive species

Jing Zhao,Teng Lei,Xin-Jia Zhang,Tian-Yan Yin,Xiao-Wei Wang,Shu-Sheng Liu
View all publications

Product promise

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