Human SPRY4 Antibody

Catalog # Availability Size / Price Qty
AF5070
AF5070-SP
Detection of Human SPRY4 by Western Blot.
3 Images
Product Details
Citations (2)
FAQs
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Human SPRY4 Antibody Summary

Species Reactivity
Human
Specificity
Detects endogenous human SPRY4 in Western blots.
Source
Polyclonal Sheep IgG
Purification
Antigen Affinity-purified
Immunogen
E. coli-derived recombinant human SPRY4
Met1-His178
Accession # NP_112226
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.
Label
Unconjugated

Applications

Recommended Concentration
Sample
Western Blot
1 µg/mL
See below
Simple Western
10 µg/mL
See below

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Scientific Data

Western Blot Detection of Human SPRY4 antibody by Western Blot. View Larger

Detection of Human SPRY4 by Western Blot. Western blot shows lysates of HepG2 human hepatocellular carcinoma cell line. PVDF membrane was probed with 1 µg/mL of Human SPRY4 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF5070) followed by HRP-conjugated Anti-Sheep IgG Secondary Antibody (Catalog # HAF016). A specific band was detected for SPRY4 at approximately 35 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.

Simple Western Detection of Human SPRY4 antibody by Simple Western<sup>TM</sup>. View Larger

Detection of Human SPRY4 by Simple WesternTM. Simple Western lane view shows lysates of HepG2 human hepatocellular carcinoma cell line, loaded at 0.2 mg/mL. A specific band was detected for SPRY4 at approximately 45 kDa (as indicated) using 10 µg/mL of Sheep Anti-Human SPRY4 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF5070) followed by 1:50 dilution of HRP-conjugated Anti-Sheep IgG Secondary Antibody (Catalog # HAF016). This experiment was conducted under reducing conditions and using the 12-230 kDa separation system.

Western Blot Detection of Human SPRY4 by Western Blot View Larger

Detection of Human SPRY4 by Western Blot KSRP is a novel regulator of Spry4.A and B, total RNA from H2122 and H157 cells treated with KSRP-specific siRNAs was isolated, and the expression of Spry4 was later determined by qPCR as described under “Experimental procedures.” **, p < 0.01, t test. C, total RNA from Beas2B cells transiently transfected with either control or FLAG-KSRP expression vectors was isolated, and the expression of Spry4 was later determined by qPCR as described under “Experimental procedures.” *, p < 0.05, t test. D, total RNA from H2122 clones with stable expression of control shRNA or KSRP shRNA was isolated, and the expression of Spry4 was later determined by qPCR as described under “Experimental procedures.” *, p < 0.05; **, p < 0.01, ANOVA. E and F, proteins from H2122 and H157 cells treated with KSRP-specific siRNAs were isolated, and the expression of Spry4 was later determined by immunoblotting. Representative data of two independent, highly reproducible experiments are displayed. Ctrl, control; IB, immunoblotting. Image collected and cropped by CiteAb from the following publication (https://linkinghub.elsevier.com/retrieve/pii/S0021925820428558), licensed under a CC-BY license. Not internally tested by R&D Systems.

Reconstitution Calculator

Reconstitution Calculator

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Preparation and Storage

Reconstitution
Reconstitute at 0.2 mg/mL in sterile PBS.
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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.

Background: SPRY4

SPRY4 (sprouty 4) is a member of the sprouty family of proteins. It blocks tyrosine kinase growth factor activation of the MAPK signaling pathway, possibly through an interaction with either Raf1 or TESK1. Human SPRY4 is 322 amino acids (aa) in length. It contains three SH3-binding domains (aa 3‑9; 25‑31; 168‑174), an NLS (aa 87‑93), a PEST sequence (aa 118‑133), and a Cys-rich/Zn++-finger domain that binds both TESK1 and Raf1 (aa 182‑298). There are two variant isoforms. One is a short form that shows an alternate start site at Met24, while a second shows a 10 aa substitution for aa 120‑129, followed by a premature truncation. Over aa 1‑177, human SPRY4 is 89% aa identical to canine SPRY4. Mouse SPRY4 is orthologous to the human short form, and shares 90% aa identity with human SPRY4.

Long Name
Sprouty Homolog 4
Entrez Gene IDs
81848 (Human); 24066 (Mouse); 291610 (Rat)
Alternate Names
protein sprouty homolog 4; sprouty homolog 4 (Drosophila); SPRY4; spry-4

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Citations for Human SPRY4 Antibody

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

2 Citations: Showing 1 - 2
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  1. KSRP promotes post-transcriptional destabilization of Spry4 transcripts in non-small cell lung cancer
    Authors: RK Bikkavilli, SA Zerayesus, M Van Scoyk, L Wilson, PY Wu, A Baskaran, K Tang, S Raheem, BA Samuelson, NM Reddy, SP Reddy, CD Cool, B Kosmider, S Avasarala, RA Winn
    J. Biol. Chem, 2017-03-08;0(0):.
    Species: Human
    Sample Types: Cell Lysates
    Applications: Western Blot
  2. Resistance to allosteric SHP2 inhibition in FGFR-driven cancers through rapid feedback activation of FGFR
    Authors: Hengyu Lu, Chen Liu, Hung Huynh, Thi Bich Uyen Le, Matthew J. LaMarche, Morvarid Mohseni et al.
    Oncotarget

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