Details for: INPP4A

Gene ID: 3631

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: INPP4A

Ensembl ID: ENSG00000040933

Description: inositol polyphosphate-4-phosphatase type I A

Selected Context(s):  Overall

Cell Significance Landscape

Contexts:

Associated with

Significant Cells

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

  • pvalb GABAergic cortical interneuron CL4023018
    CSI 36.05
    rCSI 44.85%
    PRS 20.13
  • lamp5 GABAergic cortical interneuron CL4023011
    CSI 35.48
    rCSI 59.56%
    PRS 21.36
  • sst GABAergic cortical interneuron CL4023017
    CSI 34.84
    rCSI 44.91%
    PRS 22.08
  • L2/3-6 intratelencephalic projecting glutamatergic neuron CL4023040
    CSI 25.87
    rCSI 62.87%
    PRS 20.77
  • VIP GABAergic cortical interneuron CL4023016
    CSI 23.29
    rCSI 27.81%
    PRS 21.25
  • sncg GABAergic cortical interneuron CL4023015
    CSI 21.62
    rCSI 34.77%
    PRS 23.18
  • caudal ganglionic eminence derived cortical interneuron CL4023064
    CSI 21.08
    rCSI 37.23%
    PRS 20.64
  • chandelier pvalb GABAergic cortical interneuron CL4023036
    CSI 20.51
    rCSI 64.15%
    PRS 24.19
  • L6b glutamatergic cortical neuron CL4023038
    CSI 19.9
    rCSI 62.18%
    PRS 22.34
  • L5 extratelencephalic projecting glutamatergic cortical neuron CL4023041
    CSI 17.54
    rCSI 63.13%
    PRS 20.36
  • L2/3 intratelencephalic projecting glutamatergic neuron CL4030059
    CSI 16.95
    rCSI 36.77%
    PRS 26.41
  • near-projecting glutamatergic cortical neuron CL4023012
    CSI 16.55
    rCSI 62.53%
    PRS 22.21
  • chondrocyte CL0000138
    CSI 14.9
    rCSI 23.69%
    PRS 28.48
  • Kupffer cell CL0000091
    CSI 13.96
    rCSI 31.93%
    PRS 33.18
  • L4 intratelencephalic projecting glutamatergic neuron CL4030063
    CSI 13.81
    rCSI 33.04%
    PRS 25.39
  • helper T cell CL0000912
    CSI 13.3
    rCSI 18.81%
    PRS 43.47
  • CD14-positive, CD16-positive monocyte CL0002397
    CSI 12.81
    rCSI 16.78%
    PRS 45.73
  • retinal ganglion cell CL0000740
    CSI 12.56
    rCSI 27.74%
    PRS 24.6
  • neuron CL0000540
    CSI 12.07
    rCSI 32.14%
    PRS 28.68
  • corticothalamic-projecting glutamatergic cortical neuron CL4023013
    CSI 10.5
    rCSI 61.81%
    PRS 22.49
  • glioblast CL0000030
    CSI 10.42
    rCSI 16.62%
    PRS 28.84
  • retinal rod cell CL0000604
    CSI 10.34
    rCSI 18.23%
    PRS 32.86
  • interneuron CL0000099
    CSI 9.99
    rCSI 20.07%
    PRS 25.55
  • alveolar adventitial fibroblast CL4028006
    CSI 9.14
    rCSI 14.43%
    PRS 34.3
  • plasmacytoid dendritic cell, human CL0001058
    CSI 9.03
    rCSI 6.3%
    PRS 35.32
  • central nervous system neuron CL2000029
    CSI 9
    rCSI 66.15%
    PRS 23.79
  • CD4-positive, alpha-beta cytotoxic T cell CL0000934
    CSI 8.52
    rCSI 11.7%
    PRS 54.33
  • central memory CD4-positive, alpha-beta T cell CL0000904
    CSI 8.44
    rCSI 4.98%
    PRS 46.29
  • mucosal invariant T cell CL0000940
    CSI 8.36
    rCSI 6.76%
    PRS 45.3
  • pulmonary alveolar type 1 cell CL0002062
    CSI 7.9
    rCSI 45.54%
    PRS 37.64
  • renal beta-intercalated cell CL0002201
    CSI 7.88
    rCSI 18.78%
    PRS 36.79
  • GABAergic amacrine cell CL4030027
    CSI 7.57
    rCSI 25.91%
    PRS 28.43
  • L5/6 near-projecting glutamatergic neuron CL4030067
    CSI 7.29
    rCSI 23.96%
    PRS 25
  • respiratory suprabasal cell CL4033048
    CSI 7.2
    rCSI 9.23%
    PRS 38.09
  • neuroblast (sensu Vertebrata) CL0000031
    CSI 7.17
    rCSI 9.2%
    PRS 32.18
  • CD14-positive monocyte CL0001054
    CSI 6.93
    rCSI 8.63%
    PRS 44.52
  • alveolar macrophage CL0000583
    CSI 6.46
    rCSI 10.64%
    PRS 38.55
  • rod bipolar cell CL0000751
    CSI 6.29
    rCSI 11.3%
    PRS 28.41
  • neural cell CL0002319
    CSI 6.21
    rCSI 23.42%
    PRS 32.75
  • CD4-positive, CD25-positive, alpha-beta regulatory T cell CL0000792
    CSI 6.17
    rCSI 6.06%
    PRS 47.85
  • naive thymus-derived CD8-positive, alpha-beta T cell CL0000900
    CSI 5.97
    rCSI 4.19%
    PRS 59.41
  • hepatic stellate cell CL0000632
    CSI 5.73
    rCSI 21.47%
    PRS 28.65
  • effector CD8-positive, alpha-beta T cell CL0001050
    CSI 5.73
    rCSI 4.36%
    PRS 43.25
  • CD4-positive, alpha-beta thymocyte CL0000810
    CSI 5.61
    rCSI 4.49%
    PRS 54.12
  • central nervous system macrophage CL0000878
    CSI 5.5
    rCSI 18.23%
    PRS 36.18
  • medium spiny neuron CL1001474
    CSI 5.45
    rCSI 46.93%
    PRS 22.85
  • mononuclear phagocyte CL0000113
    CSI 5.17
    rCSI 11.37%
    PRS 37.4
  • alpha-beta T cell CL0000789
    CSI 5.16
    rCSI 6.05%
    PRS 46.78
  • CD8-positive, alpha-beta thymocyte CL0000811
    CSI 5.05
    rCSI 7.88%
    PRS 60.79
  • blood vessel endothelial cell CL0000071
    CSI 5
    rCSI 10.38%
    PRS 32.77
  • CD14-low, CD16-positive monocyte CL0002396
    CSI 4.99
    rCSI 3.84%
    PRS 32.04
  • inhibitory interneuron CL0000498
    CSI 4.95
    rCSI 11.43%
    PRS 27.82
  • CD1c-positive myeloid dendritic cell CL0002399
    CSI 4.92
    rCSI 5.94%
    PRS 40.03
  • effector memory CD8-positive, alpha-beta T cell CL0000913
    CSI 4.8
    rCSI 4.37%
    PRS 47.99
  • double negative thymocyte CL0002489
    CSI 4.73
    rCSI 3.29%
    PRS 40.43
  • cardiac endothelial cell CL0010008
    CSI 4.7
    rCSI 18.97%
    PRS 32.6
  • peripheral nervous system neuron CL2000032
    CSI 4.69
    rCSI 6.39%
    PRS 28.98
  • vascular leptomeningeal cell CL4023051
    CSI 4.69
    rCSI 8.21%
    PRS 27.25
  • CD4-positive, alpha-beta memory T cell CL0000897
    CSI 4.62
    rCSI 3.32%
    PRS 44.79
  • naive T cell CL0000898
    CSI 4.61
    rCSI 3.21%
    PRS 45.17
  • parietal epithelial cell CL1000452
    CSI 4.55
    rCSI 12.17%
    PRS 28.65
  • intermediate monocyte CL0002393
    CSI 4.48
    rCSI 6.77%
    PRS 34.79
  • melanocyte CL0000148
    CSI 4.41
    rCSI 3.27%
    PRS 28.98
  • retinal bipolar neuron CL0000748
    CSI 4.37
    rCSI 8.19%
    PRS 25.56
  • retina horizontal cell CL0000745
    CSI 4.33
    rCSI 6.6%
    PRS 31.21
  • kidney connecting tubule epithelial cell CL1000768
    CSI 4.31
    rCSI 10.94%
    PRS 26.32
  • ON-bipolar cell CL0000749
    CSI 4.26
    rCSI 6.33%
    PRS 36.99
  • choroid plexus epithelial cell CL0000706
    CSI 4.23
    rCSI 6.93%
    PRS 26.45
  • granulocyte CL0000094
    CSI 4.17
    rCSI 6.38%
    PRS 41.93
  • ON parasol ganglion cell CL4033052
    CSI 4.12
    rCSI 58.44%
    PRS 28.25
  • regular ventricular cardiac myocyte CL0002131
    CSI 4.01
    rCSI 25.03%
    PRS 27.77
  • activated CD8-positive, alpha-beta T cell, human CL0001049
    CSI 3.99
    rCSI 6.83%
    PRS 54.73
  • ependymal cell CL0000065
    CSI 3.91
    rCSI 7.94%
    PRS 20.07
  • kidney interstitial alternatively activated macrophage CL1000695
    CSI 3.86
    rCSI 10.07%
    PRS 32.86
  • brush cell of tracheobronchial tree CL0002075
    CSI 3.82
    rCSI 11.34%
    PRS 44.32
  • mature T cell CL0002419
    CSI 3.81
    rCSI 2.96%
    PRS 48.27
  • myeloid leukocyte CL0000766
    CSI 3.8
    rCSI 3.5%
    PRS 34.79
  • blood vessel smooth muscle cell CL0019018
    CSI 3.7
    rCSI 30.1%
    PRS 30.52
  • renal interstitial pericyte CL1001318
    CSI 3.52
    rCSI 9.69%
    PRS 31.62
  • lung macrophage CL1001603
    CSI 3.45
    rCSI 7.71%
    PRS 39.08
  • ON midget ganglion cell CL4033046
    CSI 3.22
    rCSI 65.65%
    PRS 28.63
  • ciliated epithelial cell CL0000067
    CSI 3.05
    rCSI 2.69%
    PRS 25.01
  • cerebral cortex neuron CL0010012
    CSI 2.98
    rCSI 12.14%
    PRS 33.25
  • group 3 innate lymphoid cell CL0001071
    CSI 2.98
    rCSI 2.24%
    PRS 36.18
  • OFF midget ganglion cell CL4033047
    CSI 2.97
    rCSI 60.46%
    PRS 29.75
  • lung ciliated cell CL1000271
    CSI 2.93
    rCSI 3.39%
    PRS 25.58
  • macroglial cell CL0000126
    CSI 2.91
    rCSI 7.47%
    PRS 38.37
  • cerebral cortex endothelial cell CL1001602
    CSI 2.82
    rCSI 4.88%
    PRS 26.22
  • CD8-positive, alpha-beta cytotoxic T cell CL0000794
    CSI 2.78
    rCSI 3.32%
    PRS 52.55
  • neural crest cell CL0011012
    CSI 2.77
    rCSI 2.19%
    PRS 23.77
  • ionocyte CL0005006
    CSI 2.75
    rCSI 2.94%
    PRS 31.53
  • epithelial cell of proximal tubule CL0002306
    CSI 2.72
    rCSI 6.64%
    PRS 31.53
  • direct pathway medium spiny neuron CL4023026
    CSI 2.72
    rCSI 65.11%
    PRS 20.8
  • double-positive, alpha-beta thymocyte CL0000809
    CSI 2.71
    rCSI 2.76%
    PRS 45.41
  • cardiac muscle cell CL0000746
    CSI 2.7
    rCSI 3.87%
    PRS 26.9
  • indirect pathway medium spiny neuron CL4023029
    CSI 2.69
    rCSI 64.89%
    PRS 21.61
  • glycinergic amacrine cell CL4030028
    CSI 2.65
    rCSI 6.91%
    PRS 33.97
  • astrocyte of the cerebral cortex CL0002605
    CSI 2.64
    rCSI 5.93%
    PRS 21.94
  • type B pancreatic cell CL0000169
    CSI 2.6
    rCSI 5.76%
    PRS 31.17
  • dendritic cell, human CL0001056
    CSI 2.57
    rCSI 3.95%
    PRS 39.51
  • cytotoxic T cell CL0000910
    CSI 0.2
    rCSI 1.1%
    PRS 45.8%
  • Hofbauer cell CL3000001
    CSI 0.3
    rCSI 0.7%
    PRS 42.2%
  • effector memory CD8-positive, alpha-beta T cell, terminally differentiated CL0001062
    CSI 0.5
    rCSI 2.6%
    PRS 43.1%
  • H2 horizontal cell CL0004218
    CSI 0.6
    rCSI 3.2%
    PRS 34.9%
  • CD34-positive, CD56-positive, CD117-positive common innate lymphoid precursor, human CL0001074
    CSI 0.7
    rCSI 8.3%
    PRS 75.4%
  • colon macrophage CL0009038
    CSI 0.8
    rCSI 3.9%
    PRS 57.0%
  • H1 horizontal cell CL0004217
    CSI 0.9
    rCSI 3.6%
    PRS 39.0%
  • cerebellar neuron CL1001611
    CSI 1.0
    rCSI 8.6%
    PRS 24.8%
  • intraepithelial lymphocyte CL0002496
    CSI 1.2
    rCSI 3.2%
    PRS 76.4%
  • extravillous trophoblast CL0008036
    CSI 1.2
    rCSI 1.5%
    PRS 30.1%
  • tuft cell of colon CL0009041
    CSI 1.2
    rCSI 2.8%
    PRS 54.1%
  • invaginating midget bipolar cell CL4033034
    CSI 1.3
    rCSI 7.4%
    PRS 33.2%
  • CD8-positive, CD28-negative, alpha-beta regulatory T cell CL0000920
    CSI 1.3
    rCSI 2.6%
    PRS 51.2%
  • IgG plasma cell CL0000985
    CSI 1.3
    rCSI 1.6%
    PRS 52.1%
  • serotonergic neuron CL0000850
    CSI 1.4
    rCSI 6.0%
    PRS 23.8%
  • pancreatic A cell CL0000171
    CSI 1.5
    rCSI 1.6%
    PRS 35.6%
  • myeloid dendritic cell CL0000782
    CSI 1.5
    rCSI 2.2%
    PRS 48.5%
  • tracheobronchial smooth muscle cell CL0019019
    CSI 1.7
    rCSI 3.1%
    PRS 41.8%
  • GABAergic neuron CL0000617
    CSI 1.8
    rCSI 5.9%
    PRS 25.2%
  • glial cell CL0000125
    CSI 1.8
    rCSI 6.8%
    PRS 29.9%
  • retinal pigment epithelial cell CL0002586
    CSI 1.8
    rCSI 3.6%
    PRS 33.9%
  • T-helper 17 cell CL0000899
    CSI 1.8
    rCSI 1.4%
    PRS 54.4%
  • kidney collecting duct intercalated cell CL1001432
    CSI 1.8
    rCSI 12.9%
    PRS 43.5%
  • dopaminergic neuron CL0000700
    CSI 1.8
    rCSI 10.2%
    PRS 22.6%
  • kidney loop of Henle thin ascending limb epithelial cell CL1001107
    CSI 1.9
    rCSI 5.0%
    PRS 30.9%
  • memory T cell CL0000813
    CSI 1.9
    rCSI 3.7%
    PRS 63.6%
  • brush cell CL0002204
    CSI 2.0
    rCSI 3.9%
    PRS 62.5%
  • epithelial cell of lower respiratory tract CL0002632
    CSI 2.0
    rCSI 1.5%
    PRS 33.3%
  • lung pericyte CL0009089
    CSI 2.0
    rCSI 5.3%
    PRS 39.7%
  • T-helper 1 cell CL0000545
    CSI 2.0
    rCSI 3.7%
    PRS 62.4%
  • lung secretory cell CL1000272
    CSI 2.0
    rCSI 5.1%
    PRS 31.9%
  • lung neuroendocrine cell CL1000223
    CSI 2.1
    rCSI 3.1%
    PRS 37.9%
  • central memory CD8-positive, alpha-beta T cell CL0000907
    CSI 2.1
    rCSI 1.4%
    PRS 41.9%
  • neural progenitor cell CL0011020
    CSI 2.1
    rCSI 9.4%
    PRS 29.2%
  • Bergmann glial cell CL0000644
    CSI 2.1
    rCSI 2.9%
    PRS 32.1%
  • Langerhans cell CL0000453
    CSI 2.2
    rCSI 3.3%
    PRS 51.2%
  • glutamatergic neuron CL0000679
    CSI 2.2
    rCSI 4.5%
    PRS 31.0%
  • effector CD4-positive, alpha-beta T cell CL0001044
    CSI 2.3
    rCSI 6.4%
    PRS 48.9%
  • fibroblast of cardiac tissue CL0002548
    CSI 2.3
    rCSI 10.9%
    PRS 31.6%
  • cardiac neuron CL0010022
    CSI 2.3
    rCSI 7.3%
    PRS 30.8%
  • cerebellar granule cell CL0001031
    CSI 2.3
    rCSI 3.4%
    PRS 31.3%
  • IgA plasma cell CL0000987
    CSI 2.4
    rCSI 2.4%
    PRS 52.4%
  • retinal cone cell CL0000573
    CSI 2.4
    rCSI 3.8%
    PRS 26.3%
  • intestinal tuft cell CL0019032
    CSI 2.4
    rCSI 3.7%
    PRS 37.9%
  • lung resident memory CD8-positive, alpha-beta T cell CL4033039
    CSI 2.4
    rCSI 6.2%
    PRS 66.3%
  • Schwann cell CL0002573
    CSI 2.4
    rCSI 6.9%
    PRS 35.0%
  • activated type II NK T cell CL0000931
    CSI 2.4
    rCSI 2.7%
    PRS 48.9%
  • epithelial cell of lung CL0000082
    CSI 2.4
    rCSI 2.0%
    PRS 32.1%
  • amacrine cell CL0000561
    CSI 2.5
    rCSI 7.2%
    PRS 27.1%
  • OFF-bipolar cell CL0000750
    CSI 2.5
    rCSI 3.4%
    PRS 45.0%
  • innate lymphoid cell CL0001065
    CSI 2.5
    rCSI 5.1%
    PRS 42.6%
  • endothelial cell of pericentral hepatic sinusoid CL0019022
    CSI 2.6
    rCSI 7.9%
    PRS 45.8%
  • dendritic cell, human CL0001056
    CSI 2.6
    rCSI 4.0%
    PRS 39.5%
  • type B pancreatic cell CL0000169
    CSI 2.6
    rCSI 5.8%
    PRS 31.2%
  • astrocyte of the cerebral cortex CL0002605
    CSI 2.6
    rCSI 5.9%
    PRS 21.9%
  • glycinergic amacrine cell CL4030028
    CSI 2.7
    rCSI 6.9%
    PRS 34.0%
  • indirect pathway medium spiny neuron CL4023029
    CSI 2.7
    rCSI 64.9%
    PRS 21.6%
  • cardiac muscle cell CL0000746
    CSI 2.7
    rCSI 3.9%
    PRS 26.9%
  • double-positive, alpha-beta thymocyte CL0000809
    CSI 2.7
    rCSI 2.8%
    PRS 45.4%
  • direct pathway medium spiny neuron CL4023026
    CSI 2.7
    rCSI 65.1%
    PRS 20.8%
  • epithelial cell of proximal tubule CL0002306
    CSI 2.7
    rCSI 6.6%
    PRS 31.5%
  • ionocyte CL0005006
    CSI 2.8
    rCSI 2.9%
    PRS 31.5%
  • neural crest cell CL0011012
    CSI 2.8
    rCSI 2.2%
    PRS 23.8%
  • CD8-positive, alpha-beta cytotoxic T cell CL0000794
    CSI 2.8
    rCSI 3.3%
    PRS 52.6%
  • cerebral cortex endothelial cell CL1001602
    CSI 2.8
    rCSI 4.9%
    PRS 26.2%
  • macroglial cell CL0000126
    CSI 2.9
    rCSI 7.5%
    PRS 38.4%
  • lung ciliated cell CL1000271
    CSI 2.9
    rCSI 3.4%
    PRS 25.6%
  • OFF midget ganglion cell CL4033047
    CSI 3.0
    rCSI 60.5%
    PRS 29.8%
  • group 3 innate lymphoid cell CL0001071
    CSI 3.0
    rCSI 2.2%
    PRS 36.2%
  • cerebral cortex neuron CL0010012
    CSI 3.0
    rCSI 12.1%
    PRS 33.3%
  • ciliated epithelial cell CL0000067
    CSI 3.1
    rCSI 2.7%
    PRS 25.0%
  • ON midget ganglion cell CL4033046
    CSI 3.2
    rCSI 65.7%
    PRS 28.6%
  • lung macrophage CL1001603
    CSI 3.5
    rCSI 7.7%
    PRS 39.1%
  • renal interstitial pericyte CL1001318
    CSI 3.5
    rCSI 9.7%
    PRS 31.6%
  • blood vessel smooth muscle cell CL0019018
    CSI 3.7
    rCSI 30.1%
    PRS 30.5%
  • myeloid leukocyte CL0000766
    CSI 3.8
    rCSI 3.5%
    PRS 34.8%
  • mature T cell CL0002419
    CSI 3.8
    rCSI 3.0%
    PRS 48.3%
  • brush cell of tracheobronchial tree CL0002075
    CSI 3.8
    rCSI 11.3%
    PRS 44.3%
  • kidney interstitial alternatively activated macrophage CL1000695
    CSI 3.9
    rCSI 10.1%
    PRS 32.9%
  • ependymal cell CL0000065
    CSI 3.9
    rCSI 7.9%
    PRS 20.1%
  • activated CD8-positive, alpha-beta T cell, human CL0001049
    CSI 4.0
    rCSI 6.8%
    PRS 54.7%
  • regular ventricular cardiac myocyte CL0002131
    CSI 4.0
    rCSI 25.0%
    PRS 27.8%
  • ON parasol ganglion cell CL4033052
    CSI 4.1
    rCSI 58.4%
    PRS 28.3%
  • granulocyte CL0000094
    CSI 4.2
    rCSI 6.4%
    PRS 41.9%
  • choroid plexus epithelial cell CL0000706
    CSI 4.2
    rCSI 6.9%
    PRS 26.5%
  • ON-bipolar cell CL0000749
    CSI 4.3
    rCSI 6.3%
    PRS 37.0%
  • kidney connecting tubule epithelial cell CL1000768
    CSI 4.3
    rCSI 10.9%
    PRS 26.3%
  • retina horizontal cell CL0000745
    CSI 4.3
    rCSI 6.6%
    PRS 31.2%
  • retinal bipolar neuron CL0000748
    CSI 4.4
    rCSI 8.2%
    PRS 25.6%
  • melanocyte CL0000148
    CSI 4.4
    rCSI 3.3%
    PRS 29.0%
  • intermediate monocyte CL0002393
    CSI 4.5
    rCSI 6.8%
    PRS 34.8%
  • parietal epithelial cell CL1000452
    CSI 4.6
    rCSI 12.2%
    PRS 28.7%
  • naive T cell CL0000898
    CSI 4.6
    rCSI 3.2%
    PRS 45.2%
  • CD4-positive, alpha-beta memory T cell CL0000897
    CSI 4.6
    rCSI 3.3%
    PRS 44.8%
  • vascular leptomeningeal cell CL4023051
    CSI 4.7
    rCSI 8.2%
    PRS 27.3%
  • peripheral nervous system neuron CL2000032
    CSI 4.7
    rCSI 6.4%
    PRS 29.0%
  • cardiac endothelial cell CL0010008
    CSI 4.7
    rCSI 19.0%
    PRS 32.6%
  • double negative thymocyte CL0002489
    CSI 4.7
    rCSI 3.3%
    PRS 40.4%
  • effector memory CD8-positive, alpha-beta T cell CL0000913
    CSI 4.8
    rCSI 4.4%
    PRS 48.0%
  • CD1c-positive myeloid dendritic cell CL0002399
    CSI 4.9
    rCSI 5.9%
    PRS 40.0%

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 [INPP4A](/details-gene/3631) (Inositol Polyphosphate-4-Phosphatase Type I A) is a protein-coding gene located on chromosome 2q11.2. It encodes a phosphatase that plays a critical role in the inositol phosphate signaling pathway by specifically hydrolyzing the 4-position phosphate of phosphatidylinositol 3,4-bisphosphate (PtdIns(3,4)P2), inositol 1,3,4-trisphosphate (Ins(1,3,4)P3), and inositol 3,4-bisphosphate (Ins(3,4)P2) [Link](https://doi.org/10.1074/jbc.270.27.16128). **Overall**, expression data reveals that [INPP4A](/details-gene/3631) is a highly significant gene within the central nervous system, showing prominent expression in a wide range of both GABAergic inhibitory and glutamatergic excitatory cortical neurons. Its function as a negative regulator of phosphoinositide 3-kinase (PI3K) signaling pathways, particularly on endosomal and plasma membranes [Link](https://doi.org/10.1091/mbc.e04-09-0799), is consistent with a role in neuronal survival and signal transduction. A key study has identified [INPP4A](/details-gene/3631) as a suppressor of excitotoxic neuronal death, highlighting its neuroprotective function [Link](https://doi.org/10.1038/nature09023). ## Cellular Roles and Expression Landscape The expression profile of [INPP4A](/details-gene/3631) underscores its profound importance in the cerebral cortex. The gene demonstrates the highest significance in various subtypes of inhibitory interneurons, including [pvalb GABAergic cortical interneuron](/details-cell/CL4023018) (CSI: 36.05), [lamp5 GABAergic cortical interneuron](/details-cell/CL4023011) (CSI: 35.48), and [sst GABAergic cortical interneuron](/details-cell/CL4023017) (CSI: 34.84). This suggests a fundamental role in regulating inhibitory neurotransmission and cortical circuit function. Concurrently, [INPP4A](/details-gene/3631) is also highly significant in multiple classes of excitatory neurons, such as [L2/3-6 intratelencephalic projecting glutamatergic neuron](/details-cell/CL4023040) (CSI: 25.87) and [L5 extratelencephalic projecting glutamatergic cortical neuron](/details-cell/CL4023041) (CSI: 17.54). Its widespread high expression across both the primary inhibitory and excitatory cell lineages of the cortex points towards a role as a key homeostatic regulator of neuronal signaling and survival, rather than a marker for a specific neuronal subtype. While the dominant signature is neuronal, its moderate significance in [chondrocyte](/details-cell/CL0000138) and [Kupffer cell](/details-cell/CL0000091) suggests broader, albeit less prominent, functions in other tissues. ## Pathways and Molecular Function Functionally, [INPP4A](/details-gene/3631) is central to phosphoinositide metabolism. Gene Ontology annotations confirm its molecular function as a phosphatase acting on multiple inositol phosphate substrates, including [inositol-3,4-bisphosphate 4-phosphatase activity](/details-go/GO:0052828) and [phosphatidylinositol-3,4-bisphosphate 4-phosphatase activity](/details-go/GO:0016316). These activities are integral to the [Inositol phosphate metabolism](/details-pathway/R-HSA-1483249) pathway. The enzyme's function directly impacts cellular signaling by terminating signals propagated by PI3K. By converting PtdIns(3,4)P2 to PtdIns(3)P, [INPP4A](/details-gene/3631) modulates processes dependent on these second messengers. Its annotated localization to the [cytoplasm](/details-go/GO:0005737), [plasma membrane](/details-go/GO:0005886), [early endosome membrane](/details-go/GO:0031901), and [postsynaptic density](/details-go/GO:0014069) is consistent with its role in regulating signaling cascades at multiple subcellular compartments. This enzymatic activity is particularly relevant in neurons, where precise control of phosphoinositide signaling is crucial for synaptic function and preventing excitotoxicity [Link](https://doi.org/10.1038/nature09023). ## Research Directions The robust expression of [INPP4A](/details-gene/3631) in both excitatory and inhibitory neurons, coupled with its known neuroprotective function, frames several compelling areas for future investigation. **Proposed Hypotheses:** 1. Given its high expression across functionally opposing neuronal types, [INPP4A](/details-gene/3631) may function as a critical homeostatic regulator that maintains the excitatory/inhibitory (E/I) balance in cortical circuits. Loss of [INPP4A](/details-gene/3631) function could lead to an imbalance, potentially lowering the threshold for seizure activity and contributing to epileptogenesis. 2. The localization of [INPP4A](/details-gene/3631) to the [postsynaptic density](/details-go/GO:0014069) suggests a role in synaptic plasticity. It is hypothesized that [INPP4A](/details-gene/3631) locally modulates PtdIns(3,4)P2 levels at the synapse to control the trafficking or function of neurotransmitter receptors (e.g., AMPA or NMDA receptors), thereby influencing long-term potentiation or depression. **Experimental Approach:** To test the hypothesis that [INPP4A](/details-gene/3631) is crucial for maintaining the E/I balance (Hypothesis 1), a cell-type-specific conditional knockout mouse model could be generated (e.g., *Inpp4afl/fl* crossed with a pan-neuronal Cre-driver line). Cortical brain slices from these knockout animals and wild-type littermates could be analyzed using whole-cell patch-clamp electrophysiology. A significant increase in the ratio of spontaneous excitatory postsynaptic currents (sEPSCs) to spontaneous inhibitory postsynaptic currents (sIPSCs) in principal neurons of knockout mice would provide strong evidence for its role in maintaining E/I balance. **Therapeutic Potential:** The established function of [INPP4A](/details-gene/3631) as a suppressor of excitotoxic neuronal death makes it a highly attractive therapeutic target for neurodegenerative disorders and acute brain injury [Link](https://doi.org/10.1038/nature09023). The therapeutic strategy would focus on **activation** or enhancement of its phosphatase activity. The development of small-molecule activators that increase [INPP4A](/details-gene/3631) enzymatic function could offer a neuroprotective strategy for conditions such as stroke, traumatic brain injury, or diseases like Huntington's, where excitotoxicity is a key component of the pathology. While its broad neuronal expression presents a challenge for targeted delivery, its potential to protect neurons from a common and destructive cell death pathway makes it a valuable candidate for further therapeutic development.

Genular Protein ID: 2680522981

Symbol: INP4A_HUMAN

Name: Type I inositol 3,4-bisphosphate 4-phosphatase

UniProtKB Accession Codes:

Database IDs:

Citations:

PubMed ID: 7608176

Title: The isolation and characterization of cDNA encoding human and rat brain inositol polyphosphate 4-phosphatase.

PubMed ID: 7608176

DOI: 10.1074/jbc.270.27.16128

PubMed ID: 9295334

Title: The cDNA cloning and characterization of inositol polyphosphate 4-phosphatase type II. Evidence for conserved alternative splicing in the 4-phosphatase family.

PubMed ID: 9295334

DOI: 10.1074/jbc.272.38.23859

PubMed ID: 11485317

Title: Identification of a novel spliceoform of inositol polyphosphate 4-phosphatase type Ialpha expressed in human platelets: structure of human inositol polyphosphate 4-phosphatase type I gene.

PubMed ID: 11485317

DOI: 10.1006/bbrc.2001.5331

PubMed ID: 15815621

Title: Generation and annotation of the DNA sequences of human chromosomes 2 and 4.

PubMed ID: 15815621

DOI: 10.1038/nature03466

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: 15716355

Title: The type Ialpha inositol polyphosphate 4-phosphatase generates and terminates phosphoinositide 3-kinase signals on endosomes and the plasma membrane.

PubMed ID: 15716355

DOI: 10.1091/mbc.e04-09-0799

PubMed ID: 15592455

Title: Immunoaffinity profiling of tyrosine phosphorylation in cancer cells.

PubMed ID: 15592455

DOI: 10.1038/nbt1046

PubMed ID: 19690332

Title: Quantitative phosphoproteomic analysis of T cell receptor signaling reveals system-wide modulation of protein-protein interactions.

PubMed ID: 19690332

DOI: 10.1126/scisignal.2000007

PubMed ID: 20463662

Title: The PtdIns(3,4)P(2) phosphatase INPP4A is a suppressor of excitotoxic neuronal death.

PubMed ID: 20463662

DOI: 10.1038/nature09023

PubMed ID: 21269460

Title: Initial characterization of the human central proteome.

PubMed ID: 21269460

DOI: 10.1186/1752-0509-5-17

PubMed ID: 23186163

Title: Toward a comprehensive characterization of a human cancer cell phosphoproteome.

PubMed ID: 23186163

DOI: 10.1021/pr300630k

PubMed ID: 25869668

Title: Sac2/INPP5F is an inositol 4-phosphatase that functions in the endocytic pathway.

PubMed ID: 25869668

DOI: 10.1083/jcb.201409064

PubMed ID: 30071275

Title: Novel nuclear translocation of inositol polyphosphate 4-phosphatase is associated with cell cycle, proliferation and survival.

PubMed ID: 30071275

DOI: 10.1016/j.bbamcr.2018.07.013

Sequence Information:

  • Length: 977
  • Mass: 109956
  • Checksum: 14087B24256B2D05
  • Sequence:
  • MTAREHSPRH GARARAMQRA STIDVAADML GLSLAGNIQD PDEPILEFSL ACSELHTPSL 
    DRKPNSFVAV SVTTPPQAFW TKHAQTEIIE GTNNPIFLSS IAFFQDSLIN QMTQVKLSVY 
    DVKDRSQGTM YLLGSGTFIV KDLLQDRHHR LHLTLRSAES DRVGNITVIG WQMEEKSDQR 
    PPVTRSVDTV NGRMVLPVDE SLTEALGIRS KYASLRKDTL LKSVFGGAIC RMYRFPTTDG 
    NHLRILEQMA ESVLSLHVPR QFVKLLLEED AARVCELEEL GELSPCWESL RRQIVTQYQT 
    IILTYQENLT DLHQYRGPSF KASSLKADKK LEFVPTNLHI QRMRVQDDGG SDQNYDIVTI 
    GAPAAHCQGF KSGGLRKKLH KFEETKKHFE ECCTSSGCQS IIYIPQDVVR AKEIIAQINT 
    LKTQVSYYAE RLSRAAKDRS ATGLERTLAI LADKTRQLVT VCDCKLLANS IHGLNAARPD 
    YIASKASPTS TEEEQVMLRN DQDTLMARWT GRNSRSSLQV DWHEEEWEKV WLNVDKSLEC 
    IIQRVDKLLQ KERLHGEGCE DVFPCAGSCT SKKGNPDSHA YWIRPEDPFC DVPSSPCPST 
    MPSTACHPHL TTHCSPPPEE SSPGEWSEAL YPLLTTLTDC VAMMSDKAKK AMVFLLMQDS 
    APTIATYLSL QYRRDVVFCQ TLTALICGFI IKLRNCLHDD GFLRQLYTIG LLAQFESLLS 
    TYGEELAMLE DMSLGIMDLR NVTFKVTQAT SSASADMLPV ITGNRDGFNV RVPLPGPLFD 
    ALPREIQSGM LLRVQPVLFN VGINEQQTLA ERFGDTSLQE VINVESLVRL NSYFEQFKEV 
    LPEDCLPRSR SQTCLPELLR FLGQNVHARK NKNVDILWQA AEICRRLNGV RFTSCKSAKD 
    RTAMSVTLEQ CLILQHEHGM APQVFTQALE CMRSEGCRRE NTMKNVGSRK YAFNSLQLKA 
    FPKHYRPPEG TYGKVET