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Protein Phosphatase 2
Protein phosphatase 2 (PP2), also known as PP2A, is an enzyme that in humans is encoded by the ''PPP2CA'' gene. The PP2A heterotrimeric protein phosphatase is ubiquitously expressed, accounting for a large fraction of phosphatase activity in eukaryotic cells. Its serine/threonine phosphatase activity has a broad substrate specificity and diverse cellular functions. Among the targets of PP2A are proteins of oncogenic signaling cascades, such as Raf, MEK, and AKT, where PP2A may act as a tumor suppressor. Structure and function PP2A consists of a dimeric core enzyme composed of the structural A and catalytic C subunits, and a regulatory B subunit. When the PP2A catalytic C subunit associates with the A and B subunits several species of holoenzymes are produced with distinct functions and characteristics. The A subunit, a founding member of the HEAT repeat protein family (huntington-elongation-A subunit-TOR), is the scaffold required for the formation of the heterotrimeric co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PPP2CA
Serine/threonine-protein phosphatase 2A catalytic subunit alpha isoform is an enzyme that (in humans) is encoded by the ''PPP2CA'' gene. Function This gene encodes the phosphatase 2A catalytic subunit. Protein phosphatase 2A is one of the four major Ser/Thr phosphatases, and it is implicated in the negative control of cell growth and division. It consists of a common heteromeric core enzyme, which is composed of a catalytic subunit and a constant regulatory subunit, that associates with a variety of regulatory subunits. This gene encodes an alpha isoform of the catalytic subunit. Interactions PPP2CA has been shown to interact with: * Bcl-2, * Bestrophin 1, * CCNG2, * CTTNBP2NL, * CTTNBP2, * Cyclin-dependent kinase 2, * Cyclin-dependent kinase 6, * FAM40A, * IGBP1, * MOBKL3, * PPP2R1A, * PPP2R1B, * PPP2R2A, * PPP2R3B, * PPP2R5A, * PPP2R5B, * PPP2R5C, * PPP2R5D, * PPP2R5E, * STRN3, * STRN, and * TLX1. See also *PPP2CB Serine/threonine-protein ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
C-Raf
RAF proto-oncogene serine/threonine-protein kinase, also known as proto-oncogene c-RAF or simply c-Raf or even Raf-1, is an enzyme that in humans is encoded by the ''RAF1'' gene. The c-Raf protein is part of the ERK1/2 pathway as a MAP kinase (MAP3K) that functions downstream of the Ras subfamily of membrane associated GTPases. C-Raf is a member of the Raf kinase family of serine/threonine-specific protein kinases, from the TKL (Tyrosine-kinase-like) group of kinases. Discovery The first Raf gene, v-Raf was found in 1983. It was isolated from the murine retrovirus bearing the number 3611. It was soon demonstrated to be capable to transform rodent fibroblasts to cancerous cell lines, so this gene was given the name Virus-induced Rapidly Accelerated Fibrosarcoma (V-RAF). A year later, another transforming gene was found in the avian retrovirus MH2, named v-Mil - that turned out to be highly similar to v-Raf. Researchers were able to demonstrate that these genes encode enzymes th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PPP2R4
Serine/threonine-protein phosphatase 2A regulatory subunit B is an enzyme that in humans is encoded by the ''PPP2R4'' gene. Protein phosphatase 2A is one of the four major Ser/Thr phosphatases and is implicated in the negative control of cell growth and division. Protein phosphatase 2A holoenzymes are heterotrimeric proteins composed of a structural subunit A, a catalytic subunit C, and a regulatory subunit B. The regulatory subunit is encoded by a diverse set of genes that have been grouped into the B/PR55, B'/PR61, and B''/PR72 families. These different regulatory subunits confer distinct enzymatic specificities and intracellular localizations to the holozenzyme. The product of this gene belongs to the B' family. This gene encodes a specific phosphotyrosyl phosphatase activator of the dimeric form of protein phosphatase 2A. Alternative splicing results in multiple transcript variants encoding different isoforms. Interactions PPP2R4 has been shown to interact with PPP2R3A, C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PPP2R3C
Serine/threonine-protein phosphatase 2A regulatory subunit B'' subunit gamma is an enzyme that in humans is encoded by the ''PPP2R3C'' gene. References Further reading * * * * * * {{gene-14-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PPP2R3B
Serine/threonine-protein phosphatase 2A regulatory subunit B'' subunit beta is an enzyme that in humans is encoded by the ''PPP2R3B'' gene. Function Protein phosphatase 2 (formerly named type 2A) is one of the four major Ser/Thr phosphatases and is implicated in the negative control of cell growth and division. Protein phosphatase 2 holoenzymes are heterotrimeric proteins composed of a structural subunit A, a catalytic subunit C, and a regulatory subunit B. The regulatory subunit is encoded by a diverse set of genes that have been grouped into the B/PR55, B'/PR61, and B''/PR72 families. These different regulatory subunits confer distinct enzymatic specificities and intracellular localizations to the holozenzyme. The product of this gene belongs to the B'' family. The B'' family has been further divided into subfamilies. The product of this gene belongs to the beta subfamily of regulatory subunit B''. Alternative splicing results in multiple transcript variants encoding different ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PPP2R3A
Serine/threonine-protein phosphatase 2A regulatory subunit B'' subunit alpha is an enzyme that in humans is encoded by the ''PPP2R3A'' gene. Protein phosphatase 2 (formerly named type 2A) is one of the four major Ser/Thr phosphatases and is implicated in the negative control of cell growth and division. Protein phosphatase 2 holoenzymes are heterotrimeric proteins composed of a structural subunit A, a catalytic subunit C, and a regulatory subunit B. The regulatory subunit is encoded by a diverse set of genes that have been grouped into the B/PR55, B'/PR61, and B''/PR72 families. These different regulatory subunits confer distinct enzymatic specificities and intracellular localizations to the holozenzyme. The product of this gene belongs to the B'' family. The B'' family has been further divided into subfamilies. The product of this gene belongs to the alpha subfamily of regulatory subunit B''. Alternative splicing results in multiple transcript variants encoding different isoforms. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PPP2R2D
PP2A subunit B isoform delta also known as serine/threonine-protein phosphatase 2A 55 kDa regulatory subunit B delta isoform is a protein that in humans is encoded by the PPP2R2D gene. It is a regulatory subunit of the heterotrimeric protein phosphatase 2 enzyme. References Further reading * * {{gene-10-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PPP2R2C
Serine/threonine-protein phosphatase 2A 55 kDa regulatory subunit B gamma isoform is an enzyme that in humans is encoded by the ''PPP2R2C'' gene. Function The product of this gene belongs to the phosphatase 2 regulatory subunit B family. Protein phosphatase 2 is one of the four major Ser/Thr phosphatases, and it is implicated in the negative control of cell growth and division. It consists of a common heteromeric core enzyme, which is composed of a catalytic subunit and a constant regulatory subunit, that associates with a variety of regulatory subunits. The B regulatory subunit might modulate substrate selectivity and catalytic activity. This gene encodes a gamma isoform of the regulatory subunit B55 subfamily. Alternatively spliced transcript variants encoding different isoforms have been identified. References Further reading * * * * * * * * * * * * * {{refend ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PPP2R2B
Serine/threonine-protein phosphatase 2A 55 kDa regulatory subunit B beta isoform is an enzyme that in humans is encoded by the ''PPP2R2B'' gene. The product of this gene belongs to the phosphatase 2regulatory subunit B family. Protein phosphatase 2 is one of the four major Ser/ Thr phosphatases, and it is implicated in the negative control of cell growth and division. It consists of a common heteromeric core enzyme, which is composed of a catalytic subunit and a constant regulatory subunit, that associates with a variety of regulatory subunits. The B regulatory subunit might modulate substrate selectivity and catalytic activity. This gene encodes a beta isoform of the regulatory subunit B55 subfamily. Defects in the 5' UTR of this gene may cause a rare form of autosomal dominant In genetics, dominance is the phenomenon of one variant (allele) of a gene on a chromosome masking or overriding the effect of a different variant of the same gene on the other copy of the chrom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PPP2R2A
Serine/threonine-protein phosphatase 2A 55 kDa regulatory subunit B alpha isoform is an enzyme regulator that in humans is encoded by the ''PPP2R2A'' gene. Function The product of this gene belongs to the phosphatase 2 regulatory subunit B family. Protein phosphatase 2 is one of the four major Ser/Thr phosphatases, and it is implicated in the negative control of cell growth and division. It consists of a common heteromeric core enzyme, which is composed of a catalytic subunit and a constant regulatory subunit, that associates with a variety of regulatory subunits. The B regulatory subunit might modulate substrate selectivity and catalytic activity. This gene encodes an alpha isoform of the regulatory subunit B55 subfamily. Interactions PPP2R2A has been shown to interact with: * P70-S6 Kinase 1, * PPP2CA, * PPP2R1A, * PPP2R1B, * TGF beta receptor 1, and * p107 The P107 was a World War II French half-track. History In the 1920s and 1930s Citroën developed a long li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PPP2R1A
Serine/threonine-protein phosphatase 2A 65 kDa regulatory subunit A alpha isoform is an enzyme that in humans is encoded by the ''PPP2R1A'' gene. In the plant Arabidopsis thaliana a similar enzyme is encoded by the RCN1 gene (At1g25490). Function This gene encodes a constant regulatory subunit of protein phosphatase 2. Protein phosphatase 2 is one of the four major Ser/Thr phosphatases, and it is implicated in the negative control of cell growth and division. It consists of a common heteromeric core enzyme, which is composed of a catalytic subunit and a constant regulatory subunit, that associates with a variety of regulatory subunits. The constant regulatory subunit A serves as a scaffolding molecule to coordinate the assembly of the catalytic subunit and a variable regulatory B subunit. This gene encodes an alpha isoform of the constant regulatory subunit A. Interactions PPP2R1A has been shown to interact with: * CTTNBP2NL, * FAM40A, * PPP2CB, PPP2CA, PPP4C, * PPP2R2A, * P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
