1. Gene
  2. PIK3R3 - phosphoinositide-3-kinase regulatory subunit 3 Gene

PIK3R3 - phosphoinositide-3-kinase regulatory subunit 3 Gene

Homo sapiens

Also known as p55; p55PIK; p55-GAMMA

Gene ID: 8503 | Gene type: protein coding

About PIK3R3

Cytogenetic location: 1p34.1 Genomic coordinates (GRCh38): 1:46,040,140-46,174,901 (from NCBI)

This gene has 7 transcripts (splice variants), 277 orthologues and 2 paralogues. Broad expression in testis (RPKM 19.6), fat (RPKM 8.4) and 20 other tissues.

Summary

Phosphatidylinositol 3-kinase (PI3K) phosphorylates phosphatidylinositol and similar compounds, which then serve as second messengers in growth signaling pathways. PI3K is composed of a catalytic and a regulatory subunit. The protein encoded by this gene represents a regulatory subunit of PI3K. The encoded protein contains two SH2 domains through which it binds activated Protein Tyrosine Kinases to regulate their activity. [provided by RefSeq, Jun 2016]

PIK3R3 Products(11)

mRNA Protein Name
NM_001114172.1 NP_001107644.1 phosphatidylinositol 3-kinase regulatory subunit gamma isoform 1
NM_001303428.1 NP_001290357.1 phosphatidylinositol 3-kinase regulatory subunit gamma isoform 3
NM_001303429.2 NP_001290358.1 phosphatidylinositol 3-kinase regulatory subunit gamma isoform 4
NM_001328648.1 NP_001315577.1 phosphatidylinositol 3-kinase regulatory subunit gamma isoform 5
NM_001328649.1 NP_001315578.1 phosphatidylinositol 3-kinase regulatory subunit gamma isoform 5
NM_001328650.1 NP_001315579.1 phosphatidylinositol 3-kinase regulatory subunit gamma isoform 5
NM_001328651.1 NP_001315580.1 phosphatidylinositol 3-kinase regulatory subunit gamma isoform 5
NM_001328652.2 NP_001315581.1 phosphatidylinositol 3-kinase regulatory subunit gamma isoform 6
NM_001328653.2 NP_001315582.1 phosphatidylinositol 3-kinase regulatory subunit gamma isoform 7
NM_001328654.2 NP_001315583.1 phosphatidylinositol 3-kinase regulatory subunit gamma isoform 8
NM_003629.4 NP_003620.3 phosphatidylinositol 3-kinase regulatory subunit gamma isoform 1

PIK3R3 Protein Structure

SH2

SH2: SH2 domain (65 - 140)

SH2

SH2: SH2 domain (358 - 432)

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  • 461 a.a.
Protein Preferred Names Protein Names

phosphatidylinositol 3-kinase regulatory subunit gamma

PI3-kinase regulatory subunit gamma

Related Diseases

Diseases Alias
Asbestos-Related Lung Carcinoma
Cervical Non-Keratinizing Squamous Cell Carcinoma
Colorectal Cancer

Colon Cancer

Colorectal Carcinoma

Colon Carcinoma

Colorectal Cancer, Susceptibility To

Carcinoma Of Colon

CRC

Colorectal Cancer With Chromosomal Instability, Somatic

Colon Cancer, Somatic

Colon Cancer, Susceptibility To

Colonic Neoplasms

Colorectal Neoplasms

Colorectal Cancer, Somatic

Colon Cancer, Advanced, Somatic

Colonic Carcinoma

Colorectal Carcinomas

Colon Cancers

Colorectal Cancers

Cancer, Colorectal, Somatic

Cancer, Colon

Cancer, Colorectal, Susceptibility To

Colorectal Neoplasm

Colonic Neoplasm

Malignant Tumor Of Colon

Lung Cancer

Lung Carcinoma

Non-Small Cell Lung Carcinoma

Lung Cancer, Susceptibility To

Lung Cancer, Protection Against

Adenocarcinoma Of Lung, Somatic

Adenocarcinoma Of Lung, Response To Tyrosine Kinase Inhibitor In

Nonsmall Cell Lung Cancer

Lung Neoplasm

Carcinoma Of Lung

Lung Non-Small Cell Carcinoma

Non-Small Cell Lung Cancer

Nsclc

Lung Neoplasms

Malignant Neoplasm Of Lung

Alveolar Cell Carcinoma

Nonsmall Cell Lung Cancer, Somatic

Nonsmall Cell Lung Cancer, Response To Tyrosine Kinase Inhibitor In

Nonsmall Cell Lung Cancer, Susceptibility To

Lung Cancer, Somatic

Lung Cancer, Resistance To

Cancer Of Lung

Cancer Of Bronchus

Cancer Of The Lung

Lung Malignancies

Lung Malignant Tumors

Malignant Lung Tumor

Malignant Tumor Of Lung

Pulmonary Cancer

Pulmonary Carcinoma

Pulmonary Neoplasms

Respiratory Carcinoma

LNCR

Adenocarcinoma Of Lung

Neoplasm Of Lung

Cancer Lung

Carcinoma Non-Small Cell Lung

Carcinoma, Non-Small-Cell Lung

Lung Cancers

Lung Carcinomas

Cancer, Lung

Cancer, Lung, Non-Small Cell

Primary Malignant Neoplasm Of Lung

Bronchioloalveolar Adenocarcinoma

Endometrial Cancer

Endometrial Carcinoma

Endometrial Neoplasm

Malignant Neoplasm Of Endometrium

Endometrioid Carcinoma

Endometrial Neoplasms

Carcinoma, Endometrioid

Endometrial Cancer, Familial

Endometrial Carcinoma, Somatic

Endometrial Cancer, Susceptibility To

Endometrial Ca

Malignant Endometrial Neoplasm

Neoplasm Of Endometrium

Primary Malignant Neoplasm Of Endometrium

Tumor Of Endometrium

Carcinoma Of The Endometrium

Endometrioid Carcinoma Of Female Reproductive System

ENDMC

Carcinoma Endometrioid

Endometrial Cancers

Cancer, Endometrial

Uterine Corpus Cancer

Breast Cancer

Breast Carcinoma

Male Breast Cancer

Breast Cancer, Familial

Malignant Neoplasm Of Breast

Breast Cancer, Susceptibility To

Breast Cancer, Early-Onset

Malignant Tumor Of Breast

Carcinoma Of Male Breast

Breast Cancer, Invasive Ductal

Breast Cancer, Protection Against

Breast Cancer, Somatic

Breast Cancer, Male

Breast Cancer, Lobular, Somatic

Breast Tumor

Mammary Cancer

Mammary Tumor

Malignant Neoplasm Of Male Breast

Mammary Carcinoma

Male Breast Carcinoma

Familial Cancer Of Breast

Invasive Ductal Breast Carcinoma

Breast Cancer Susceptibility

Breast Cancer, Male, Susceptibility To

Breast Cancer, Early-Onset, Susceptibility To

Malignant Tumor Of The Breast

Mammary Neoplasm

Primary Breast Cancer

Neoplasm Of Male Breast

Carcinoma Of Breast

Breast Cancer In Men

Familial Breast Cancer

Cancer Of Breast

BC

Breast Cancer Familial

Breast Cancer Familial Male

Breast Cancer, Familial Male

Breast Male Carcinoma

Breast Neoplasms

Breast Neoplasms, Male

Mammary Tumors

Mammary Carcinomas

Cancer, Breast

Cancer, Breast, Susceptibility

Invasive Breast Ductal Carcinoma

Breast Neoplasm

Susceptibility To Breast Cancer

Mammary Neoplasms

Animal Mammary Neoplasms

Primary Malignant Neoplasm Of Breast

Infiltrating Ductal Carcinoma Of Breast

Infiltrating Duct Carcinoma Of Unspecified Site

Infiltrating Ductular Carcinoma Of Unspecified Site

Invasive Breast Carcinoma Of No Special Type

Microinvasive Carcinoma Of Breast

Carcinoma With Apocrine Differentiation

Diseases Alias
Waldenstroem'S Macroglobulinemia

Waldenstroem'S Macroglobulinemia

Waldenstroem'S Macroglobulinemia

Macroglobulinemia Of Waldenstrom

Lymphoplasmacytic Lymphoma With Igm Gammopathy

Lymphoplasmacytic Lymphoma

Waldenstroem'S Macroglobulinemia

Waldenstroem'S Macroglobulinemia

Macroglobulinemia Of Waldenstrom

Lymphoplasmacytic Lymphoma With Igm Gammopathy

Lymphoplasmacytic Lymphoma

Orthologs Information

Species Symbol Source ID
Rattus norvegicus PIK3R3 RGD RGD:621042
Mus musculus PIK3R3 MGD MGI:109277
Others PIK3R3 NCBI