This website uses cookies to ensure you get the best experience on our website.
- Table of Contents
Designing a Western blot for PIK3R1? The guide has the expected band size, antibodies backed by real blot images, the controls to run alongside, and protocols taken from published papers.
Open the PIK3R1 Western Blot GuideDesigning an IHC experiment for PIK3R1? The guide has the expected staining pattern, antigen retrieval and fixation, antibodies backed by real IHC images, the tissue controls to run alongside, and protocols taken from published papers.
Open the PIK3R1 IHC Guide26 Citations
10 Citations
Facts about Phosphatidylinositol 3-kinase regulatory subunit alpha.
Plays an important role in signaling in response to FGFR1, FGFR2, FGFR3, FGFR4, KITLG/SCF, KIT, PDGFRA and PDGFRB. Likewise, plays a role in ITGB2 signaling (PubMed:17626883, PubMed:19805105, PubMed:7518429).
| Human | |
|---|---|
| Gene Name: | PIK3R1 |
| Uniprot: | P27986 |
| Entrez: | 5295 |

| Belongs to: |
|---|
| PI3K p85 subunit family |

GRB1; GRB1PI3-kinase subunit p85-alpha; p85; p85-ALPHA; Phosphatidylinositol 3-kinase 85 kDa regulatory subunit alpha; phosphatidylinositol 3-kinase regulatory subunit alpha; phosphatidylinositol 3-kinase, regulatory subunit, polypeptide 1 (p85 alpha); phosphatidylinositol 3-kinase, regulatory, 1; phosphatidylinositol 3-kinase-associated p-85 alpha; phosphoinositide-3-kinase, regulatory subunit 1 (alpha); PI 3Kinase p85 alpha; PI 3-Kinase p85 alpha; PI3K regulatory subunit alpha; PI3-kinase regulatory subunit alpha; PIK3R1; PtdIns-3-kinase regulatory subunit alpha; PtdIns-3-kinase regulatory s
Mass (kDA):
83.598 kDA

| Human | |
|---|---|
| Location: | 5q13.1 |
| Sequence: | 5; NC_000005.10 (68215737..68301821) |
Isoform 2 is expressed in skeletal muscle and brain, and at lower levels in kidney and cardiac muscle. Isoform 2 and isoform 4 are present in skeletal muscle (at protein level).




PMID: 1849461 by Skolnik E.Y., et al. Cloning of PI3 kinase-associated p85 utilizing a novel method for expression/cloning of target proteins for receptor tyrosine kinases.
PMID: 8628286 by Antonetti D.A., et al. Insulin receptor substrate 1 binds two novel splice variants of the regulatory subunit of phosphatidylinositol 3-kinase in muscle and brain.
*More publications can be found for each product on its corresponding product page