Details for: PPP2R2A

Gene ID: 5520

Gene Type:  Protein-coding  - A gene that serves as a template for producing a messenger RNA (mRNA) molecule, which is then translated into a functional protein.

Symbol: PPP2R2A

Ensembl ID: ENSG00000221914

Description: protein phosphatase 2 regulatory subunit Balpha

Selected Context(s):  Overall

Cell Significance Landscape

Contexts:

Associated with

Significant Cells

Cell Significance Index (CSI) scores for the chosen context(s)

  • conjunctival epithelial cell CL1000432
    CSI 45.16
    rCSI 68.98%
    PRS 18.62
  • BEST4+ enteroycte CL4030026
    CSI 42.87
    rCSI 53.32%
    PRS 19.66
  • L2/3-6 intratelencephalic projecting glutamatergic neuron CL4023040
    CSI 27.71
    rCSI 67.35%
    PRS 10.72
  • corneal epithelial cell CL0000575
    CSI 20.29
    rCSI 58.05%
    PRS 32.55
  • cardiac endothelial cell CL0010008
    CSI 17.95
    rCSI 72.43%
    PRS 16.68
  • L5 extratelencephalic projecting glutamatergic cortical neuron CL4023041
    CSI 16.43
    rCSI 59.13%
    PRS 10.26
  • L6b glutamatergic cortical neuron CL4023038
    CSI 16.09
    rCSI 50.27%
    PRS 11.64
  • endothelial cell of placenta CL0009092
    CSI 13.56
    rCSI 66.84%
    PRS 25.06
  • type B pancreatic cell CL0000169
    CSI 13.02
    rCSI 28.82%
    PRS 17.14
  • luminal epithelial cell of mammary gland CL0002326
    CSI 10.62
    rCSI 19.3%
    PRS 28.21
  • Kupffer cell CL0000091
    CSI 10.21
    rCSI 23.35%
    PRS 17.98
  • placental villous trophoblast CL2000060
    CSI 9.08
    rCSI 14.03%
    PRS 17.33
  • corticothalamic-projecting glutamatergic cortical neuron CL4023013
    CSI 8.97
    rCSI 52.82%
    PRS 11.44
  • transit amplifying cell of colon CL0009011
    CSI 8.96
    rCSI 10.53%
    PRS 21.5
  • OFFx cell CL4033036
    CSI 8.27
    rCSI 38.88%
    PRS 19.83
  • diffuse bipolar 6 cell CL4033032
    CSI 8.09
    rCSI 42.54%
    PRS 21.73
  • enteroendocrine cell of small intestine CL0009006
    CSI 7.44
    rCSI 16.39%
    PRS 28.15
  • centrilobular region hepatocyte CL0019029
    CSI 7.25
    rCSI 18.91%
    PRS 28.3
  • medium spiny neuron CL1001474
    CSI 6.64
    rCSI 57.18%
    PRS 8.66
  • renal alpha-intercalated cell CL0005011
    CSI 6.46
    rCSI 8.64%
    PRS 24.19
  • paneth cell of epithelium of small intestine CL1000343
    CSI 6.45
    rCSI 18.08%
    PRS 28.64
  • oligodendrocyte CL0000128
    CSI 6.4
    rCSI 18.93%
    PRS 16.7
  • blood vessel endothelial cell CL0000071
    CSI 6.33
    rCSI 13.14%
    PRS 18.45
  • granulocyte CL0000094
    CSI 6.32
    rCSI 9.66%
    PRS 23.89
  • brush cell of tracheobronchial tree CL0002075
    CSI 5.63
    rCSI 16.72%
    PRS 26.05
  • central nervous system neuron CL2000029
    CSI 5.6
    rCSI 41.15%
    PRS 10.56
  • small intestine goblet cell CL1000495
    CSI 5.38
    rCSI 11.79%
    PRS 24.77
  • dendritic cell, human CL0001056
    CSI 5.09
    rCSI 7.82%
    PRS 22.08
  • L2/3 intratelencephalic projecting glutamatergic neuron CL4030059
    CSI 5.06
    rCSI 10.97%
    PRS 12.3
  • respiratory goblet cell CL0002370
    CSI 4.86
    rCSI 52.9%
    PRS 35.24
  • intestinal crypt stem cell of small intestine CL0009017
    CSI 4.72
    rCSI 12.73%
    PRS 23.97
  • double-positive, alpha-beta thymocyte CL0000809
    CSI 4.72
    rCSI 4.81%
    PRS 26.54
  • CD4-positive, alpha-beta thymocyte CL0000810
    CSI 4.62
    rCSI 3.7%
    PRS 33.05
  • chondrocyte CL0000138
    CSI 4.55
    rCSI 7.23%
    PRS 15.64
  • alveolar adventitial fibroblast CL4028006
    CSI 4.49
    rCSI 7.09%
    PRS 18.61
  • endothelial cell of pericentral hepatic sinusoid CL0019022
    CSI 4.3
    rCSI 13.24%
    PRS 27.67
  • stem cell CL0000034
    CSI 4.28
    rCSI 4.12%
    PRS 13.32
  • hepatocyte CL0000182
    CSI 4.14
    rCSI 7.4%
    PRS 17.1
  • endothelial cell of vascular tree CL0002139
    CSI 3.7
    rCSI 20.21%
    PRS 29.49
  • blood vessel smooth muscle cell CL0019018
    CSI 3.65
    rCSI 29.67%
    PRS 18.74
  • direct pathway medium spiny neuron CL4023026
    CSI 3.59
    rCSI 86%
    PRS 9.23
  • indirect pathway medium spiny neuron CL4023029
    CSI 3.56
    rCSI 85.78%
    PRS 10.17
  • alveolar macrophage CL0000583
    CSI 3.44
    rCSI 5.67%
    PRS 21.86
  • enterocyte CL0000584
    CSI 3.37
    rCSI 5.44%
    PRS 28.64
  • cerebral cortex endothelial cell CL1001602
    CSI 3.29
    rCSI 5.69%
    PRS 14.11
  • near-projecting glutamatergic cortical neuron CL4023012
    CSI 3.16
    rCSI 11.96%
    PRS 11.22
  • acinar cell of salivary gland CL0002623
    CSI 3.14
    rCSI 73.07%
    PRS 34.43
  • rod bipolar cell CL0000751
    CSI 3.03
    rCSI 5.45%
    PRS 15.35
  • ON-bipolar cell CL0000749
    CSI 3
    rCSI 4.45%
    PRS 22.16
  • basal cell of prostate epithelium CL0002341
    CSI 2.88
    rCSI 8.34%
    PRS 39.59
  • mucosal invariant T cell CL0000940
    CSI 2.78
    rCSI 2.25%
    PRS 29.13
  • myofibroblast cell CL0000186
    CSI 2.67
    rCSI 3.7%
    PRS 26.2
  • club cell CL0000158
    CSI 2.47
    rCSI 3.61%
    PRS 21.36
  • Cajal-Retzius cell CL0000695
    CSI 2.43
    rCSI 19.04%
    PRS 37.59
  • T-helper 17 cell CL0000899
    CSI 2.41
    rCSI 1.92%
    PRS 32.8
  • periportal region hepatocyte CL0019026
    CSI 2.34
    rCSI 9.1%
    PRS 25.09
  • cerebellar granule cell CL0001031
    CSI 2.3
    rCSI 3.38%
    PRS 16.98
  • subcutaneous adipocyte CL0002521
    CSI 2.21
    rCSI 11.34%
    PRS 18.66
  • glial cell CL0000125
    CSI 2.16
    rCSI 8.23%
    PRS 18.08
  • neural crest cell CL0011012
    CSI 2.16
    rCSI 1.7%
    PRS 12.68
  • renal beta-intercalated cell CL0002201
    CSI 2.15
    rCSI 5.13%
    PRS 21.38
  • diffuse bipolar 1 cell CL4033027
    CSI 2.15
    rCSI 16.13%
    PRS 18.57
  • colonocyte CL1000347
    CSI 2.14
    rCSI 3.06%
    PRS 25.23
  • epithelial cell CL0000066
    CSI 2.1
    rCSI 3.22%
    PRS 25.5
  • type EC enteroendocrine cell CL0000577
    CSI 2.09
    rCSI 7.42%
    PRS 30.07
  • renal principal cell CL0005009
    CSI 2.08
    rCSI 5.39%
    PRS 23.84
  • adipocyte CL0000136
    CSI 2.07
    rCSI 2.66%
    PRS 17.94
  • tendon cell CL0000388
    CSI 1.94
    rCSI 5.05%
    PRS 46.56
  • keratocyte CL0002363
    CSI 1.88
    rCSI 4.52%
    PRS 27.36
  • lamp5 GABAergic cortical interneuron CL4023011
    CSI 1.86
    rCSI 3.13%
    PRS 10.92
  • vascular associated smooth muscle cell CL0000359
    CSI 1.86
    rCSI 6.02%
    PRS 22.36
  • CD4-positive helper T cell CL0000492
    CSI 1.84
    rCSI 1.39%
    PRS 25.39
  • Mueller cell CL0000636
    CSI 1.83
    rCSI 4.17%
    PRS 15.93
  • retinal pigment epithelial cell CL0002586
    CSI 1.82
    rCSI 3.6%
    PRS 19.5
  • lung resident memory CD8-positive, alpha-beta T cell CL4033039
    CSI 1.8
    rCSI 4.67%
    PRS 46.22
  • naive T cell CL0000898
    CSI 1.79
    rCSI 1.24%
    PRS 26.29
  • mature T cell CL0002419
    CSI 1.78
    rCSI 1.38%
    PRS 27.11
  • invaginating midget bipolar cell CL4033034
    CSI 1.77
    rCSI 10.48%
    PRS 19.65
  • flat midget bipolar cell CL4033033
    CSI 1.75
    rCSI 12.55%
    PRS 19.31
  • fibroblast of lung CL0002553
    CSI 1.74
    rCSI 1.62%
    PRS 18.57
  • retinal bipolar neuron CL0000748
    CSI 1.73
    rCSI 3.23%
    PRS 13.3
  • neuroblast (sensu Vertebrata) CL0000031
    CSI 1.71
    rCSI 2.2%
    PRS 17.93
  • caudal ganglionic eminence derived cortical interneuron CL4023064
    CSI 1.71
    rCSI 3.02%
    PRS 10.88
  • activated CD4-positive, alpha-beta T cell CL0000896
    CSI 1.63
    rCSI 1.51%
    PRS 33.28
  • endocardial cell CL0002350
    CSI 1.61
    rCSI 7.73%
    PRS 22.75
  • secretory cell CL0000151
    CSI 1.6
    rCSI 1.67%
    PRS 18.97
  • glandular epithelial cell CL0000150
    CSI 1.59
    rCSI 4.19%
    PRS 35.8
  • pulmonary capillary endothelial cell CL4028001
    CSI 1.58
    rCSI 3.02%
    PRS 29.32
  • pulmonary ionocyte CL0017000
    CSI 1.56
    rCSI 1.9%
    PRS 23.27
  • mucous neck cell CL0000651
    CSI 1.53
    rCSI 2.21%
    PRS 29.25
  • intrahepatic cholangiocyte CL0002538
    CSI 1.53
    rCSI 3.67%
    PRS 32.98
  • natural T-regulatory cell CL0000903
    CSI 1.51
    rCSI 2.85%
    PRS 48.57
  • extravillous trophoblast CL0008036
    CSI 1.5
    rCSI 1.86%
    PRS 16.22
  • alpha-beta T cell CL0000789
    CSI 1.49
    rCSI 1.74%
    PRS 25.33
  • kidney loop of Henle thin ascending limb epithelial cell CL1001107
    CSI 1.48
    rCSI 3.83%
    PRS 17.23
  • plasmacytoid dendritic cell, human CL0001058
    CSI 1.47
    rCSI 1.03%
    PRS 19.68
  • epicardial adipocyte CL1000309
    CSI 1.47
    rCSI 4.79%
    PRS 22.45
  • midzonal region hepatocyte CL0019028
    CSI 1.47
    rCSI 3.44%
    PRS 26.75
  • epithelial cell of proximal tubule CL0002306
    CSI 1.47
    rCSI 3.58%
    PRS 18.21
  • fraction A pre-pro B cell CL0002045
    CSI 1.46
    rCSI 1.67%
    PRS 37.4
  • CD8-positive, alpha-beta thymocyte CL0000811
    CSI -3.6
    rCSI -5.6%
    PRS 42.6%
  • mesenchymal cell CL0008019
    CSI -1.9
    rCSI -4.8%
    PRS 18.7%
  • amacrine cell CL0000561
    CSI -1.6
    rCSI -4.8%
    PRS 14.2%
  • early lymphoid progenitor CL0000936
    CSI -0.8
    rCSI -0.7%
    PRS 21.3%
  • promonocyte CL0000559
    CSI -0.4
    rCSI -0.7%
    PRS 25.1%
  • effector CD4-positive, alpha-beta T cell CL0001044
    CSI 0.0
    rCSI 0.0%
    PRS 27.4%
  • mesenchymal stem cell CL0000134
    CSI 0.0
    rCSI 0.1%
    PRS 33.0%
  • cytotoxic T cell CL0000910
    CSI 0.1
    rCSI 0.4%
    PRS 27.2%
  • pancreatic acinar cell CL0002064
    CSI 0.1
    rCSI 0.1%
    PRS 20.3%
  • primitive red blood cell CL0002355
    CSI 0.1
    rCSI 0.5%
    PRS 32.7%
  • macroglial cell CL0000126
    CSI 0.1
    rCSI 0.3%
    PRS 24.3%
  • eosinophil CL0000771
    CSI 0.1
    rCSI 0.8%
    PRS 46.3%
  • kidney distal convoluted tubule epithelial cell CL1000849
    CSI 0.1
    rCSI 1.4%
    PRS 24.4%
  • S cone cell CL0003050
    CSI 0.1
    rCSI 0.6%
    PRS 16.1%
  • mucus secreting cell CL0000319
    CSI 0.1
    rCSI 0.2%
    PRS 23.8%
  • mesangial cell CL0000650
    CSI 0.2
    rCSI 0.6%
    PRS 25.7%
  • large pre-B-II cell CL0000957
    CSI 0.2
    rCSI 0.5%
    PRS 31.5%
  • H2 horizontal cell CL0004218
    CSI 0.2
    rCSI 0.9%
    PRS 19.9%
  • cerebral cortex pyramidal neuron CL4023111
    CSI 0.2
    rCSI 1.2%
    PRS 45.8%
  • intestinal crypt stem cell of colon CL0009043
    CSI 0.2
    rCSI 1.5%
    PRS 33.7%
  • vein endothelial cell of respiratory system CL4033008
    CSI 0.2
    rCSI 1.4%
    PRS 35.8%
  • lymphoid lineage restricted progenitor cell CL0000838
    CSI 0.2
    rCSI 0.8%
    PRS 30.4%
  • granulocyte monocyte progenitor cell CL0000557
    CSI 0.2
    rCSI 0.2%
    PRS 20.8%
  • megakaryocyte CL0000556
    CSI 0.2
    rCSI 0.9%
    PRS 32.4%
  • endothelial cell of arteriole CL1000412
    CSI 0.2
    rCSI 1.2%
    PRS 49.0%
  • regular ventricular cardiac myocyte CL0002131
    CSI 0.2
    rCSI 1.4%
    PRS 14.4%
  • enterocyte of epithelium of small intestine CL1000334
    CSI 0.2
    rCSI 3.5%
    PRS 44.5%
  • intestinal epithelial cell CL0002563
    CSI 0.2
    rCSI 0.2%
    PRS 19.4%
  • OFF midget ganglion cell CL4033047
    CSI 0.2
    rCSI 4.8%
    PRS 15.7%
  • tracheobronchial smooth muscle cell CL0019019
    CSI 0.3
    rCSI 0.4%
    PRS 24.3%
  • tissue-resident macrophage CL0000864
    CSI 0.3
    rCSI 1.2%
    PRS 37.1%
  • serous secreting cell of bronchus submucosal gland CL4033005
    CSI 0.3
    rCSI 1.5%
    PRS 57.1%
  • podocyte CL0000653
    CSI 0.3
    rCSI 1.2%
    PRS 18.1%
  • central memory CD8-positive, alpha-beta T cell CL0000907
    CSI 0.3
    rCSI 0.2%
    PRS 22.6%
  • enteric neuron CL0007011
    CSI 0.3
    rCSI 4.1%
    PRS 44.5%
  • Bergmann glial cell CL0000644
    CSI 0.3
    rCSI 0.4%
    PRS 18.4%
  • IgG plasma cell CL0000985
    CSI 0.3
    rCSI 0.3%
    PRS 32.0%
  • mature B cell CL0000785
    CSI 0.3
    rCSI 0.3%
    PRS 23.2%
  • epithelial cell of esophagus CL0002252
    CSI 0.3
    rCSI 3.0%
    PRS 55.2%
  • pancreatic ductal cell CL0002079
    CSI 0.3
    rCSI 0.6%
    PRS 18.9%
  • kidney interstitial alternatively activated macrophage CL1000695
    CSI 0.3
    rCSI 0.8%
    PRS 17.0%
  • elicited macrophage CL0000861
    CSI 0.3
    rCSI 0.3%
    PRS 21.6%
  • peripheral nervous system neuron CL2000032
    CSI 0.3
    rCSI 0.5%
    PRS 16.4%
  • GABAergic amacrine cell CL4030027
    CSI 0.4
    rCSI 1.2%
    PRS 16.0%
  • tracheal goblet cell CL1000329
    CSI 0.4
    rCSI 0.8%
    PRS 36.1%
  • ON parasol ganglion cell CL4033052
    CSI 0.4
    rCSI 5.2%
    PRS 13.8%
  • erythroblast CL0000765
    CSI 0.4
    rCSI 1.0%
    PRS 29.7%
  • regular atrial cardiac myocyte CL0002129
    CSI 0.4
    rCSI 1.2%
    PRS 19.4%
  • intestinal tuft cell CL0019032
    CSI 0.4
    rCSI 0.6%
    PRS 21.2%
  • sst GABAergic cortical interneuron CL4023017
    CSI 0.4
    rCSI 0.5%
    PRS 11.4%
  • skeletal muscle satellite stem cell CL0008011
    CSI 0.4
    rCSI 1.7%
    PRS 47.8%
  • common myeloid progenitor CL0000049
    CSI 0.4
    rCSI 0.3%
    PRS 18.5%
  • lung neuroendocrine cell CL1000223
    CSI 0.4
    rCSI 0.6%
    PRS 21.2%
  • lung macrophage CL1001603
    CSI 0.4
    rCSI 0.9%
    PRS 21.5%
  • myeloid lineage restricted progenitor cell CL0000839
    CSI 0.4
    rCSI 2.1%
    PRS 35.9%
  • squamous epithelial cell CL0000076
    CSI 0.4
    rCSI 1.0%
    PRS 22.9%
  • endothelial cell of venule CL1000414
    CSI 0.4
    rCSI 3.6%
    PRS 60.7%
  • myeloid dendritic cell CL0000782
    CSI 0.4
    rCSI 0.6%
    PRS 27.8%
  • renal interstitial pericyte CL1001318
    CSI 0.4
    rCSI 1.1%
    PRS 17.1%
  • choroid plexus epithelial cell CL0000706
    CSI 0.4
    rCSI 0.7%
    PRS 14.2%
  • bronchial goblet cell CL1000312
    CSI 0.4
    rCSI 1.7%
    PRS 39.0%
  • luminal cell of prostate epithelium CL0002340
    CSI 0.4
    rCSI 2.3%
    PRS 32.9%
  • bronchus fibroblast of lung CL2000093
    CSI 0.4
    rCSI 0.3%
    PRS 19.6%
  • VIP GABAergic cortical interneuron CL4023016
    CSI 0.4
    rCSI 0.5%
    PRS 10.7%
  • microcirculation associated smooth muscle cell CL0008035
    CSI 0.4
    rCSI 1.3%
    PRS 20.9%
  • duct epithelial cell CL0000068
    CSI 0.4
    rCSI 0.6%
    PRS 19.6%
  • transit amplifying cell of small intestine CL0009012
    CSI 0.4
    rCSI 1.9%
    PRS 34.2%
  • prostate gland microvascular endothelial cell CL2000059
    CSI 0.4
    rCSI 10.6%
    PRS 54.9%
  • CD14-positive, CD16-positive monocyte CL0002397
    CSI 0.5
    rCSI 0.6%
    PRS 26.4%
  • L4 intratelencephalic projecting glutamatergic neuron CL4030063
    CSI 0.5
    rCSI 1.1%
    PRS 11.6%
  • cardiac muscle cell CL0000746
    CSI 0.5
    rCSI 0.7%
    PRS 14.3%
  • retinal cone cell CL0000573
    CSI 0.5
    rCSI 0.8%
    PRS 14.2%
  • enterocyte of epithelium of large intestine CL0002071
    CSI 0.5
    rCSI 2.5%
    PRS 31.8%
  • foveolar cell of stomach CL0002179
    CSI 0.5
    rCSI 1.0%
    PRS 29.4%
  • cerebral cortex neuron CL0010012
    CSI 0.5
    rCSI 2.0%
    PRS 18.9%
  • kidney connecting tubule epithelial cell CL1000768
    CSI 0.5
    rCSI 1.2%
    PRS 14.0%
  • parietal epithelial cell CL1000452
    CSI 0.5
    rCSI 1.3%
    PRS 15.4%
  • retinal ganglion cell CL0000740
    CSI 0.5
    rCSI 1.1%
    PRS 13.3%
  • CD8-positive, CD28-negative, alpha-beta regulatory T cell CL0000920
    CSI 0.5
    rCSI 1.0%
    PRS 31.0%
  • L5/6 near-projecting glutamatergic neuron CL4030067
    CSI 0.5
    rCSI 1.7%
    PRS 11.1%
  • helper T cell CL0000912
    CSI 0.5
    rCSI 0.7%
    PRS 25.7%
  • Schwann cell CL0002573
    CSI 0.5
    rCSI 1.5%
    PRS 21.3%
  • diffuse bipolar 2 cell CL4033028
    CSI 0.5
    rCSI 4.2%
    PRS 20.0%
  • pancreatic stellate cell CL0002410
    CSI 0.5
    rCSI 3.1%
    PRS 27.6%
  • retina horizontal cell CL0000745
    CSI 0.5
    rCSI 0.8%
    PRS 17.2%
  • immature B cell CL0000816
    CSI 0.5
    rCSI 0.4%
    PRS 27.3%
  • fibroblast of cardiac tissue CL0002548
    CSI 0.6
    rCSI 2.6%
    PRS 14.0%
  • tuft cell of colon CL0009041
    CSI 0.6
    rCSI 1.3%
    PRS 37.0%
  • Hofbauer cell CL3000001
    CSI 0.6
    rCSI 1.1%
    PRS 23.4%
  • stromal cell of ovary CL0002132
    CSI 0.6
    rCSI 1.5%
    PRS 30.4%
  • respiratory suprabasal cell CL4033048
    CSI 0.6
    rCSI 0.7%
    PRS 21.4%
  • alveolar type 1 fibroblast cell CL4028004
    CSI 0.6
    rCSI 0.6%
    PRS 20.9%
  • epithelial cell of lung CL0000082
    CSI 0.6
    rCSI 0.5%
    PRS 17.5%
  • cardiac blood vessel endothelial cell CL0010006
    CSI 0.6
    rCSI 4.0%
    PRS 20.9%
  • glioblast CL0000030
    CSI 0.6
    rCSI 0.9%
    PRS 15.9%
  • basal-myoepithelial cell of mammary gland CL0002324
    CSI 0.6
    rCSI 1.1%
    PRS 39.0%
  • effector memory CD8-positive, alpha-beta T cell, terminally differentiated CL0001062
    CSI 0.6
    rCSI 3.0%
    PRS 24.5%
  • pulmonary alveolar type 1 cell CL0002062
    CSI 0.6
    rCSI 3.4%
    PRS 23.9%
  • keratinocyte CL0000312
    CSI 0.6
    rCSI 0.5%
    PRS 22.1%
  • diffuse bipolar 3a cell CL4033029
    CSI 0.6
    rCSI 4.1%
    PRS 19.2%

Cell ID: Standard Cell Ontology term used for mapping and comparing cells across experiments. Ensures consistency in analyzing cellular functions across tissues.
Fold Change: Represents the ratio of the current Cell Significance Index to the Cell Significance Index Threshold, indicating how much the gene expression has changed compared to a baseline.
Cell Significance Index: Reflects how strongly a gene is expressed in this specific cell.

Cell ID: Standard Cell Ontology term used for mapping and comparing cells across experiments. Ensures consistency in analyzing cellular functions across tissues.
Fold Change: Represents the ratio of the current Cell Significance Index to the Cell Significance Index Threshold, indicating how much the gene expression has changed compared to a baseline.
Cell Significance Index: Reflects how strongly a gene is expressed in this cell type. Calculated using techniques like effect size estimation and bootstrapping for reliability.

Cell ID: Standard Cell Ontology term used for mapping and comparing cells across experiments. Ensures consistency in analyzing cellular functions across tissues.
Fold Change: Represents the ratio of the current Cell Significance Index to the Cell Significance Index Threshold, indicating how much the gene expression has changed compared to a baseline.
Cell Significance Index: Reflects how strongly a gene is expressed in this cell type. Calculated using techniques like effect size estimation and bootstrapping for reliability.
Network Configuration

Explore relationships of the current gene. Select an Interaction Source: 'ONTOLOGY' for shared pathways (GO/Reactome) or 'STRING' for protein-protein interactions. Further refine by selecting context genes and comparing Cell Significance Index (CSI) scores between baseline and target cell types and their specific contexts.

Comma-separated if multiple.
Comma-separated if multiple.

Legend:
  • Query Gene
  • Node Color (Target Cell CSI, relative to current network):
    • Very High
    • High
    • Medium
    • Low
    • Very Low
    • CSI N/A
  • Node Size: Proportional to Target Cell CSI magnitude
  • STRING PPI Edge
  • Shared Pathway Edge (ONTOLOGY)

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Other Information

This section provides additional information about the gene, including a description generated by an AI language model and details about associated proteins.

## Summary [PPP2R2A](/details-gene/5520) encodes the protein phosphatase 2A (PP2A) 55 kDa regulatory subunit B alpha isoform, a critical component of the PP2A holoenzyme. As a regulatory subunit, it directs the catalytic activity of PP2A towards specific substrates, thereby playing a pivotal role in cellular processes governed by serine/threonine phosphorylation. Functional annotations strongly link [PPP2R2A](/details-gene/5520) to the regulation of protein dephosphorylation, particularly in the context of cell cycle control. Expression data reveals its significance across a diverse range of tissues and cell types, with particularly high relevance in epithelial cells of the eye and gut, various glutamatergic neurons, and endothelial cells. ## Cellular Roles and Expression Landscape The expression profile of [PPP2R2A](/details-gene/5520) suggests a broad but distinct role in terminally differentiated and actively cycling cells, particularly those forming physiological barriers or involved in complex signaling. **Overall**, the gene shows the highest significance in several epithelial lineages, including [conjunctival epithelial cell](/details-cell/CL1000432) (CSI: 45.16) and [corneal epithelial cell](/details-cell/CL0000575) (CSI: 20.29), as well as specialized intestinal [BEST4+ enteroycte](/details-cell/CL4030026) (CSI: 42.87). This pattern suggests a fundamental role in maintaining epithelial homeostasis and function. A second major site of significance is the central nervous system, where it is a key marker for multiple subtypes of glutamatergic neurons, such as [L2/3-6 intratelencephalic projecting glutamatergic neuron](/details-cell/CL4023040) (CSI: 27.71) and [L5 extratelencephalic projecting glutamatergic cortical neuron](/details-cell/CL4023041) (CSI: 16.43). This is consistent with its annotated localization to the [glutamatergic synapse](/details-cell/GO0098978), pointing to a role in neuronal signaling. Furthermore, [PPP2R2A](/details-gene/5520) is significantly expressed in various endothelial cells, including [cardiac endothelial cell](/details-cell/CL0010008) (CSI: 17.95) and [endothelial cell of placenta](/details-cell/CL0009092) (CSI: 13.56), indicating a potential role in vascular biology and tissue perfusion. Conversely, the gene's expression is notably low in lymphoid progenitors like [CD8-positive, alpha-beta thymocyte](/details-cell/CL0000811) (CSI: -3.56) and [early lymphoid progenitor](/details-cell/CL0000936) (CSI: -0.83). This suggests that while it has a broad role in many somatic cell types, its function may be less critical during early stages of lymphocyte development. ## Pathways and Molecular Function [PPP2R2A](/details-gene/5520) functions primarily as a protein phosphatase regulator ([GO:0019888](https://www.ebi.ac.uk/QuickGO/term/GO:0019888)) by forming a complex with the catalytic and scaffolding subunits of PP2A ([GO:0000159](https://www.ebi.ac.uk/QuickGO/term/GO:0000159)). This complex executes [protein dephosphorylation](/details-cell/GO0006470), a fundamental regulatory mechanism. The Reactome pathway analysis highlights an extensive involvement of [PPP2R2A](/details-gene/5520) in the regulation of the [cell cycle](/details-cell/R-HSA-1640170). It is implicated in multiple phases, including [G1 phase](/details-cell/R-HSA-69236), the [G2/M transition](/details-cell/R-HSA-69275), and [mitotic anaphase](/details-cell/R-HSA-68882). This central role in controlling cell division is consistent with its high expression in tissues with significant cellular turnover, such as the epithelium. Beyond cell cycle control, [PPP2R2A](/details-gene/5520) is involved in [cellular responses to stimuli](/details-cell/R-HSA-8953897), including mechanical stimuli. Specifically, it is part of the pathway for the [response of endothelial cells to shear stress](/details-cell/R-HSA-9860931), which aligns with its significant expression in cardiac and placental endothelial cells. The gene is also annotated in RNA metabolism pathways, including [nonsense-mediated decay (NMD)](/details-cell/R-HSA-927802), suggesting a role in post-transcriptional quality control. ## Research Directions The widespread yet specific expression pattern of [PPP2R2A](/details-gene/5520), coupled with its central role in cell cycle regulation and signal transduction, suggests several avenues for future research. **Proposed Hypotheses:** 1. Given its high significance in multiple glutamatergic neuron subtypes and its localization to the [glutamatergic synapse](/details-cell/GO0098978), [PPP2R2A](/details-gene/5520) likely modulates synaptic strength and plasticity by dephosphorylating key synaptic proteins, thereby controlling neuronal excitability and circuit function. 2. The prominent expression of [PPP2R2A](/details-gene/5520) in high-turnover epithelial tissues (conjunctiva, cornea, colon) and its deep involvement in cell cycle checkpoints ([R-HSA-69275](https://reactome.org/content/detail/R-HSA-69275)) suggests it acts as a critical gatekeeper for epithelial proliferation. Its dysregulation may therefore be a key event in the development of epithelial-derived cancers by permitting uncontrolled cell division. **Experimental Approach:** To test the second hypothesis, one could utilize organoid models derived from human corneal or colonic epithelial stem cells. 1. **Perturbation:** Use CRISPR-Cas9 to knock out [PPP2R2A](/details-gene/5520) or CRISPRi to knockdown its expression in established organoid cultures. 2. **Phenotypic Analysis:** Assess the impact on organoid morphology, proliferation rates via EdU incorporation assays, and cell cycle distribution using flow cytometry analysis of DNA content. 3. **Molecular Analysis:** Perform RNA-sequencing and quantitative proteomics on control versus perturbed organoids to identify dysregulated cell cycle regulators (e.g., cyclins, CDKs) and signaling pathways (e.g., Wnt, MAPK) that are downstream of [PPP2R2A](/details-gene/5520)-mediated dephosphorylation. **Therapeutic Potential:** As a regulatory subunit of a major cellular phosphatase, [PPP2R2A](/details-gene/5520) represents a potential therapeutic target. PP2A itself is often considered a tumor suppressor, and its inactivation is common in cancer. Therefore, strategies aimed at *activating* or *stabilizing* the PP2A complex containing the [PPP2R2A](/details-gene/5520) subunit could have anti-neoplastic effects, particularly in epithelial cancers where the gene is highly expressed. Developing small molecules that specifically promote the assembly or substrate targeting of the [PPP2R2A](/details-gene/5520)-containing holoenzyme, rather than globally activating all PP2A complexes, could offer a targeted therapeutic approach with an improved safety profile.

Genular Protein ID: 3849113515

Symbol: 2ABA_HUMAN

Name: Serine/threonine-protein phosphatase 2A 55 kDa regulatory subunit B alpha isoform

UniProtKB Accession Codes:

Database IDs:

Citations:

PubMed ID: 1849734

Title: Structure of the 55-kDa regulatory subunit of protein phosphatase 2A: evidence for a neuronal-specific isoform.

PubMed ID: 1849734

DOI: 10.1021/bi00229a001

PubMed ID: 14702039

Title: Complete sequencing and characterization of 21,243 full-length human cDNAs.

PubMed ID: 14702039

DOI: 10.1038/ng1285

PubMed ID: 16421571

Title: DNA sequence and analysis of human chromosome 8.

PubMed ID: 16421571

DOI: 10.1038/nature04406

PubMed ID: 15489334

Title: The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC).

PubMed ID: 15489334

DOI: 10.1101/gr.2596504

PubMed ID: 17245430

Title: A specific PP2A regulatory subunit, B56gamma, mediates DNA damage-induced dephosphorylation of p53 at Thr55.

PubMed ID: 17245430

DOI: 10.1038/sj.emboj.7601519

PubMed ID: 19413330

Title: Lys-N and trypsin cover complementary parts of the phosphoproteome in a refined SCX-based approach.

PubMed ID: 19413330

DOI: 10.1021/ac9004309

PubMed ID: 21269460

Title: Initial characterization of the human central proteome.

PubMed ID: 21269460

DOI: 10.1186/1752-0509-5-17

PubMed ID: 22223895

Title: Comparative large-scale characterisation of plant vs. mammal proteins reveals similar and idiosyncratic N-alpha acetylation features.

PubMed ID: 22223895

DOI: 10.1074/mcp.m111.015131

PubMed ID: 24275569

Title: An enzyme assisted RP-RPLC approach for in-depth analysis of human liver phosphoproteome.

PubMed ID: 24275569

DOI: 10.1016/j.jprot.2013.11.014

PubMed ID: 25816751

Title: HSF1 transcriptional activity is modulated by IER5 and PP2A/B55.

PubMed ID: 25816751

DOI: 10.1016/j.febslet.2015.03.019

PubMed ID: 27588481

Title: FAM122A, a new endogenous inhibitor of protein phosphatase 2A.

PubMed ID: 27588481

DOI: 10.18632/oncotarget.11698

PubMed ID: 28609714

Title: MFHAS1 suppresses TLR4 signaling pathway via induction of PP2A C subunit cytoplasm translocation and inhibition of c-Jun dephosphorylation at Thr239.

PubMed ID: 28609714

DOI: 10.1016/j.molimm.2017.06.017

PubMed ID: 30611118

Title: Mitogenic Signals Stimulate the CREB Coactivator CRTC3 through PP2A Recruitment.

PubMed ID: 30611118

DOI: 10.1016/j.isci.2018.12.012

PubMed ID: 33108758

Title: CHK1 Inhibitor Blocks Phosphorylation of FAM122A and Promotes Replication Stress.

PubMed ID: 33108758

DOI: 10.1016/j.molcel.2020.10.008

Sequence Information:

  • Length: 447
  • Mass: 51692
  • Checksum: F4D407FF7ADA4ED6
  • Sequence:
  • MAGAGGGNDI QWCFSQVKGA VDDDVAEADI ISTVEFNHSG ELLATGDKGG RVVIFQQEQE 
    NKIQSHSRGE YNVYSTFQSH EPEFDYLKSL EIEEKINKIR WLPQKNAAQF LLSTNDKTIK 
    LWKISERDKR PEGYNLKEED GRYRDPTTVT TLRVPVFRPM DLMVEASPRR IFANAHTYHI 
    NSISINSDYE TYLSADDLRI NLWHLEITDR SFNIVDIKPA NMEELTEVIT AAEFHPNSCN 
    TFVYSSSKGT IRLCDMRASA LCDRHSKLFE EPEDPSNRSF FSEIISSISD VKFSHSGRYM 
    MTRDYLSVKI WDLNMENRPV ETYQVHEYLR SKLCSLYEND CIFDKFECCW NGSDSVVMTG 
    SYNNFFRMFD RNTKRDITLE ASRENNKPRT VLKPRKVCAS GKRKKDEISV DSLDFNKKIL 
    HTAWHPKENI IAVATTNNLY IFQDKVN