Details for: PIP5K1B

Gene ID: 8395

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: PIP5K1B

Ensembl ID: ENSG00000107242

Description: phosphatidylinositol-4-phosphate 5-kinase type 1 beta

Selected Context(s):  Overall

Cell Significance Landscape

Contexts:

Associated with

Significant Cells

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

  • choroid plexus epithelial cell CL0000706
    CSI 56.77
    rCSI 92.96%
    PRS 59.29
  • cardiac muscle cell CL0000746
    CSI 38.53
    rCSI 55.28%
    PRS 59.71
  • sst GABAergic cortical interneuron CL4023017
    CSI 36.69
    rCSI 47.3%
    PRS 52.78
  • lamp5 GABAergic cortical interneuron CL4023011
    CSI 36.48
    rCSI 61.23%
    PRS 51.44
  • pvalb GABAergic cortical interneuron CL4023018
    CSI 28.49
    rCSI 35.44%
    PRS 49.52
  • sncg GABAergic cortical interneuron CL4023015
    CSI 26.31
    rCSI 42.32%
    PRS 53.33
  • caudal ganglionic eminence derived cortical interneuron CL4023064
    CSI 21.45
    rCSI 37.89%
    PRS 50.54
  • BEST4+ enteroycte CL4030026
    CSI 16.21
    rCSI 20.16%
    PRS 72.08
  • erythrocyte CL0000232
    CSI 14.83
    rCSI 33.66%
    PRS 72.39
  • VIP GABAergic cortical interneuron CL4023016
    CSI 13.92
    rCSI 16.63%
    PRS 51.25
  • L5 extratelencephalic projecting glutamatergic cortical neuron CL4023041
    CSI 12.78
    rCSI 46%
    PRS 49.62
  • mesothelial cell CL0000077
    CSI 12.48
    rCSI 48.79%
    PRS 47.43
  • pulmonary ionocyte CL0017000
    CSI 11.15
    rCSI 13.57%
    PRS 77.47
  • lung secretory cell CL1000272
    CSI 9.92
    rCSI 24.56%
    PRS 69.04
  • myoepithelial cell CL0000185
    CSI 9.7
    rCSI 24.54%
    PRS 77.16
  • mature B cell CL0000785
    CSI 9.59
    rCSI 8.34%
    PRS 80.74
  • naive B cell CL0000788
    CSI 9.29
    rCSI 7.96%
    PRS 77.8
  • renal interstitial pericyte CL1001318
    CSI 9.28
    rCSI 25.58%
    PRS 65.21
  • stem cell CL0000034
    CSI 8.73
    rCSI 8.42%
    PRS 61.96
  • erythroblast CL0000765
    CSI 8.34
    rCSI 22.13%
    PRS 79.42
  • regular atrial cardiac myocyte CL0002129
    CSI 8.25
    rCSI 26.55%
    PRS 67.89
  • paneth cell of epithelium of small intestine CL1000343
    CSI 8.24
    rCSI 23.1%
    PRS 79.88
  • goblet cell CL0000160
    CSI 8.19
    rCSI 7.74%
    PRS 69.57
  • L2/3-6 intratelencephalic projecting glutamatergic neuron CL4023040
    CSI 8.18
    rCSI 19.89%
    PRS 49.84
  • neuroblast (sensu Nematoda and Protostomia) CL0000338
    CSI 7.94
    rCSI 9.16%
    PRS 62.67
  • ionocyte CL0005006
    CSI 7.47
    rCSI 8.01%
    PRS 70.69
  • rod bipolar cell CL0000751
    CSI 7.25
    rCSI 13.02%
    PRS 63.3
  • Mueller cell CL0000636
    CSI 6.72
    rCSI 15.35%
    PRS 61.63
  • enteroendocrine cell CL0000164
    CSI 6.61
    rCSI 9.04%
    PRS 71.26
  • retinal pigment epithelial cell CL0002586
    CSI 6.55
    rCSI 13%
    PRS 66.81
  • cerebellar granule cell CL0001031
    CSI 6.09
    rCSI 8.95%
    PRS 63.33
  • epicardial adipocyte CL1000309
    CSI 5.88
    rCSI 19.14%
    PRS 69.4
  • enteroendocrine cell of small intestine CL0009006
    CSI 5.81
    rCSI 12.79%
    PRS 81.04
  • hematopoietic stem cell CL0000037
    CSI 5.53
    rCSI 3.68%
    PRS 73.05
  • unswitched memory B cell CL0000970
    CSI 5.44
    rCSI 4.57%
    PRS 85.4
  • acinar cell CL0000622
    CSI 5.4
    rCSI 7.92%
    PRS 81.4
  • cerebral cortex neuron CL0010012
    CSI 5.36
    rCSI 21.85%
    PRS 63.23
  • central nervous system neuron CL2000029
    CSI 5.35
    rCSI 39.34%
    PRS 56.91
  • interneuron CL0000099
    CSI 5.25
    rCSI 10.53%
    PRS 59.46
  • immature B cell CL0000816
    CSI 5.22
    rCSI 3.88%
    PRS 82.75
  • astrocyte of the cerebral cortex CL0002605
    CSI 5.21
    rCSI 11.68%
    PRS 52.07
  • dopaminergic neuron CL0000700
    CSI 5.1
    rCSI 28.84%
    PRS 55.57
  • smooth muscle cell CL0000192
    CSI 5.08
    rCSI 12.12%
    PRS 70.63
  • intestinal epithelial cell CL0002563
    CSI 5.07
    rCSI 5.3%
    PRS 68.02
  • secretory cell CL0000151
    CSI 5.03
    rCSI 5.25%
    PRS 70.19
  • inhibitory interneuron CL0000498
    CSI 4.96
    rCSI 11.46%
    PRS 58.39
  • L2/3 intratelencephalic projecting glutamatergic neuron CL4030059
    CSI 4.93
    rCSI 10.7%
    PRS 57.94
  • renal beta-intercalated cell CL0002201
    CSI 4.92
    rCSI 11.72%
    PRS 70.65
  • retinal bipolar neuron CL0000748
    CSI 4.92
    rCSI 9.21%
    PRS 57.94
  • ciliated cell CL0000064
    CSI 4.87
    rCSI 7.89%
    PRS 65.9
  • neuron CL0000540
    CSI 4.77
    rCSI 12.71%
    PRS 58.71
  • ciliated columnar cell of tracheobronchial tree CL0002145
    CSI 4.71
    rCSI 10.74%
    PRS 65.42
  • chondrocyte CL0000138
    CSI 4.42
    rCSI 7.03%
    PRS 62.87
  • vascular leptomeningeal cell CL4023051
    CSI 4.23
    rCSI 7.41%
    PRS 62.69
  • kidney loop of Henle thin descending limb epithelial cell CL1001111
    CSI 3.95
    rCSI 5.59%
    PRS 66.43
  • plasmablast CL0000980
    CSI 3.89
    rCSI 3.06%
    PRS 76.79
  • glial cell CL0000125
    CSI 3.88
    rCSI 14.78%
    PRS 60.7
  • ependymal cell CL0000065
    CSI 3.86
    rCSI 7.83%
    PRS 48.48
  • melanocyte CL0000148
    CSI 3.67
    rCSI 2.72%
    PRS 63.04
  • small intestine goblet cell CL1000495
    CSI 3.65
    rCSI 7.99%
    PRS 77.06
  • regular ventricular cardiac myocyte CL0002131
    CSI 3.51
    rCSI 21.94%
    PRS 61.6
  • colon epithelial cell CL0011108
    CSI 3.49
    rCSI 3.66%
    PRS 67.21
  • retinal ganglion cell CL0000740
    CSI 3.43
    rCSI 7.57%
    PRS 56.12
  • perivascular cell CL4033054
    CSI 3.4
    rCSI 4.64%
    PRS 75.9
  • microcirculation associated smooth muscle cell CL0008035
    CSI 3.35
    rCSI 9.69%
    PRS 70.88
  • corticothalamic-projecting glutamatergic cortical neuron CL4023013
    CSI 3.31
    rCSI 19.47%
    PRS 52.53
  • enterocyte CL0000584
    CSI 3.23
    rCSI 5.21%
    PRS 71.76
  • kidney interstitial alternatively activated macrophage CL1000695
    CSI 3.18
    rCSI 8.3%
    PRS 70.59
  • common myeloid progenitor CL0000049
    CSI 3.14
    rCSI 2.54%
    PRS 72.1
  • intestine goblet cell CL0019031
    CSI 3.1
    rCSI 2.75%
    PRS 68.14
  • IgG plasma cell CL0000985
    CSI 2.99
    rCSI 3.59%
    PRS 84.45
  • type L enteroendocrine cell CL0002279
    CSI 2.99
    rCSI 5.61%
    PRS 81.73
  • chandelier pvalb GABAergic cortical interneuron CL4023036
    CSI 2.9
    rCSI 9.06%
    PRS 55.73
  • conjunctival epithelial cell CL1000432
    CSI 2.72
    rCSI 4.16%
    PRS 70.93
  • contractile cell CL0000183
    CSI 2.64
    rCSI 7.78%
    PRS 69.4
  • intestinal tuft cell CL0019032
    CSI 2.61
    rCSI 3.99%
    PRS 74.69
  • endocardial cell CL0002350
    CSI 2.52
    rCSI 12.07%
    PRS 68.14
  • brush cell of tracheobronchial tree CL0002075
    CSI 2.4
    rCSI 7.11%
    PRS 79.98
  • kidney connecting tubule epithelial cell CL1000768
    CSI 2.36
    rCSI 5.99%
    PRS 59.83
  • IgA plasma cell CL0000987
    CSI 2.32
    rCSI 2.37%
    PRS 81.72
  • cerebral cortex endothelial cell CL1001602
    CSI 2.31
    rCSI 4%
    PRS 60.66
  • intestinal crypt stem cell of small intestine CL0009017
    CSI 2.21
    rCSI 5.96%
    PRS 76.62
  • cerebellar neuron CL1001611
    CSI 2.14
    rCSI 18.8%
    PRS 58.14
  • tuft cell of colon CL0009041
    CSI 2.13
    rCSI 4.95%
    PRS 79.32
  • transit amplifying cell of colon CL0009011
    CSI 2.11
    rCSI 2.48%
    PRS 72.44
  • epithelial cell of proximal tubule CL0002306
    CSI 2.08
    rCSI 5.09%
    PRS 63.3
  • colonocyte CL1000347
    CSI 2.06
    rCSI 2.95%
    PRS 72.63
  • basal cell CL0000646
    CSI 2.05
    rCSI 2.75%
    PRS 70.05
  • near-projecting glutamatergic cortical neuron CL4023012
    CSI 2.05
    rCSI 7.74%
    PRS 52.02
  • GABAergic neuron CL0000617
    CSI 1.98
    rCSI 6.63%
    PRS 54.72
  • foveolar cell of stomach CL0002179
    CSI 1.83
    rCSI 3.9%
    PRS 79.28
  • pancreatic acinar cell CL0002064
    CSI 1.79
    rCSI 2.38%
    PRS 76.65
  • pulmonary alveolar type 2 cell CL0002063
    CSI 1.79
    rCSI 2.78%
    PRS 76.64
  • megakaryocyte-erythroid progenitor cell CL0000050
    CSI 1.77
    rCSI 1.6%
    PRS 67.57
  • tracheobronchial serous cell CL0019001
    CSI 1.76
    rCSI 7.6%
    PRS 80.51
  • parietal epithelial cell CL1000452
    CSI 1.68
    rCSI 4.49%
    PRS 61.21
  • kidney loop of Henle thin ascending limb epithelial cell CL1001107
    CSI 1.67
    rCSI 4.32%
    PRS 65.11
  • L6b glutamatergic cortical neuron CL4023038
    CSI 1.64
    rCSI 5.13%
    PRS 53.23
  • CD14-positive monocyte CL0001054
    CSI 1.58
    rCSI 1.96%
    PRS 80.7
  • alveolar macrophage CL0000583
    CSI 1.53
    rCSI 2.52%
    PRS 75.49
  • intestinal crypt stem cell of colon CL0009043
    CSI 0.4
    rCSI 3.1%
    PRS 83.8%
  • kidney distal convoluted tubule epithelial cell CL1000849
    CSI 0.5
    rCSI 5.0%
    PRS 67.5%
  • erythroid progenitor cell CL0000038
    CSI 0.5
    rCSI 2.9%
    PRS 77.9%
  • ON parasol ganglion cell CL4033052
    CSI 0.5
    rCSI 7.3%
    PRS 61.2%
  • ON midget ganglion cell CL4033046
    CSI 0.9
    rCSI 17.3%
    PRS 60.5%
  • transit amplifying cell of small intestine CL0009012
    CSI 0.9
    rCSI 3.8%
    PRS 82.3%
  • diffuse bipolar 1 cell CL4033027
    CSI 0.9
    rCSI 6.7%
    PRS 62.6%
  • type EC enteroendocrine cell CL0000577
    CSI 0.9
    rCSI 3.3%
    PRS 77.0%
  • colon goblet cell CL0009039
    CSI 1.1
    rCSI 2.7%
    PRS 78.0%
  • large pre-B-II cell CL0000957
    CSI 1.1
    rCSI 3.2%
    PRS 79.4%
  • ciliated epithelial cell CL0000067
    CSI 1.2
    rCSI 1.0%
    PRS 58.2%
  • OFF midget ganglion cell CL4033047
    CSI 1.2
    rCSI 24.2%
    PRS 62.0%
  • stromal cell CL0000499
    CSI 1.3
    rCSI 3.6%
    PRS 66.2%
  • mucus secreting cell CL0000319
    CSI 1.3
    rCSI 2.0%
    PRS 80.3%
  • lung ciliated cell CL1000271
    CSI 1.4
    rCSI 1.6%
    PRS 61.2%
  • enteroendocrine cell of colon CL0009042
    CSI 1.4
    rCSI 6.5%
    PRS 83.6%
  • pulmonary alveolar type 1 cell CL0002062
    CSI 1.4
    rCSI 8.0%
    PRS 68.0%
  • lung pericyte CL0009089
    CSI 1.4
    rCSI 3.7%
    PRS 78.7%
  • kidney loop of Henle thick ascending limb epithelial cell CL1001106
    CSI 1.5
    rCSI 12.8%
    PRS 66.1%
  • alveolar macrophage CL0000583
    CSI 1.5
    rCSI 2.5%
    PRS 75.5%
  • CD14-positive monocyte CL0001054
    CSI 1.6
    rCSI 2.0%
    PRS 80.7%
  • L6b glutamatergic cortical neuron CL4023038
    CSI 1.6
    rCSI 5.1%
    PRS 53.2%
  • kidney loop of Henle thin ascending limb epithelial cell CL1001107
    CSI 1.7
    rCSI 4.3%
    PRS 65.1%
  • parietal epithelial cell CL1000452
    CSI 1.7
    rCSI 4.5%
    PRS 61.2%
  • tracheobronchial serous cell CL0019001
    CSI 1.8
    rCSI 7.6%
    PRS 80.5%
  • megakaryocyte-erythroid progenitor cell CL0000050
    CSI 1.8
    rCSI 1.6%
    PRS 67.6%
  • pulmonary alveolar type 2 cell CL0002063
    CSI 1.8
    rCSI 2.8%
    PRS 76.6%
  • pancreatic acinar cell CL0002064
    CSI 1.8
    rCSI 2.4%
    PRS 76.7%
  • foveolar cell of stomach CL0002179
    CSI 1.8
    rCSI 3.9%
    PRS 79.3%
  • GABAergic neuron CL0000617
    CSI 2.0
    rCSI 6.6%
    PRS 54.7%
  • near-projecting glutamatergic cortical neuron CL4023012
    CSI 2.1
    rCSI 7.7%
    PRS 52.0%
  • basal cell CL0000646
    CSI 2.1
    rCSI 2.8%
    PRS 70.1%
  • colonocyte CL1000347
    CSI 2.1
    rCSI 3.0%
    PRS 72.6%
  • epithelial cell of proximal tubule CL0002306
    CSI 2.1
    rCSI 5.1%
    PRS 63.3%
  • transit amplifying cell of colon CL0009011
    CSI 2.1
    rCSI 2.5%
    PRS 72.4%
  • tuft cell of colon CL0009041
    CSI 2.1
    rCSI 5.0%
    PRS 79.3%
  • cerebellar neuron CL1001611
    CSI 2.1
    rCSI 18.8%
    PRS 58.1%
  • intestinal crypt stem cell of small intestine CL0009017
    CSI 2.2
    rCSI 6.0%
    PRS 76.6%
  • cerebral cortex endothelial cell CL1001602
    CSI 2.3
    rCSI 4.0%
    PRS 60.7%
  • IgA plasma cell CL0000987
    CSI 2.3
    rCSI 2.4%
    PRS 81.7%
  • kidney connecting tubule epithelial cell CL1000768
    CSI 2.4
    rCSI 6.0%
    PRS 59.8%
  • brush cell of tracheobronchial tree CL0002075
    CSI 2.4
    rCSI 7.1%
    PRS 80.0%
  • endocardial cell CL0002350
    CSI 2.5
    rCSI 12.1%
    PRS 68.1%
  • intestinal tuft cell CL0019032
    CSI 2.6
    rCSI 4.0%
    PRS 74.7%
  • contractile cell CL0000183
    CSI 2.6
    rCSI 7.8%
    PRS 69.4%
  • conjunctival epithelial cell CL1000432
    CSI 2.7
    rCSI 4.2%
    PRS 70.9%
  • chandelier pvalb GABAergic cortical interneuron CL4023036
    CSI 2.9
    rCSI 9.1%
    PRS 55.7%
  • type L enteroendocrine cell CL0002279
    CSI 3.0
    rCSI 5.6%
    PRS 81.7%
  • IgG plasma cell CL0000985
    CSI 3.0
    rCSI 3.6%
    PRS 84.5%
  • intestine goblet cell CL0019031
    CSI 3.1
    rCSI 2.8%
    PRS 68.1%
  • common myeloid progenitor CL0000049
    CSI 3.1
    rCSI 2.5%
    PRS 72.1%
  • kidney interstitial alternatively activated macrophage CL1000695
    CSI 3.2
    rCSI 8.3%
    PRS 70.6%
  • enterocyte CL0000584
    CSI 3.2
    rCSI 5.2%
    PRS 71.8%
  • corticothalamic-projecting glutamatergic cortical neuron CL4023013
    CSI 3.3
    rCSI 19.5%
    PRS 52.5%
  • microcirculation associated smooth muscle cell CL0008035
    CSI 3.4
    rCSI 9.7%
    PRS 70.9%
  • perivascular cell CL4033054
    CSI 3.4
    rCSI 4.6%
    PRS 75.9%
  • retinal ganglion cell CL0000740
    CSI 3.4
    rCSI 7.6%
    PRS 56.1%
  • colon epithelial cell CL0011108
    CSI 3.5
    rCSI 3.7%
    PRS 67.2%
  • regular ventricular cardiac myocyte CL0002131
    CSI 3.5
    rCSI 21.9%
    PRS 61.6%
  • small intestine goblet cell CL1000495
    CSI 3.7
    rCSI 8.0%
    PRS 77.1%
  • melanocyte CL0000148
    CSI 3.7
    rCSI 2.7%
    PRS 63.0%
  • ependymal cell CL0000065
    CSI 3.9
    rCSI 7.8%
    PRS 48.5%
  • glial cell CL0000125
    CSI 3.9
    rCSI 14.8%
    PRS 60.7%
  • plasmablast CL0000980
    CSI 3.9
    rCSI 3.1%
    PRS 76.8%
  • kidney loop of Henle thin descending limb epithelial cell CL1001111
    CSI 4.0
    rCSI 5.6%
    PRS 66.4%
  • vascular leptomeningeal cell CL4023051
    CSI 4.2
    rCSI 7.4%
    PRS 62.7%
  • chondrocyte CL0000138
    CSI 4.4
    rCSI 7.0%
    PRS 62.9%
  • ciliated columnar cell of tracheobronchial tree CL0002145
    CSI 4.7
    rCSI 10.7%
    PRS 65.4%
  • neuron CL0000540
    CSI 4.8
    rCSI 12.7%
    PRS 58.7%
  • ciliated cell CL0000064
    CSI 4.9
    rCSI 7.9%
    PRS 65.9%
  • retinal bipolar neuron CL0000748
    CSI 4.9
    rCSI 9.2%
    PRS 57.9%
  • renal beta-intercalated cell CL0002201
    CSI 4.9
    rCSI 11.7%
    PRS 70.7%
  • L2/3 intratelencephalic projecting glutamatergic neuron CL4030059
    CSI 4.9
    rCSI 10.7%
    PRS 57.9%
  • inhibitory interneuron CL0000498
    CSI 5.0
    rCSI 11.5%
    PRS 58.4%
  • secretory cell CL0000151
    CSI 5.0
    rCSI 5.3%
    PRS 70.2%
  • intestinal epithelial cell CL0002563
    CSI 5.1
    rCSI 5.3%
    PRS 68.0%
  • smooth muscle cell CL0000192
    CSI 5.1
    rCSI 12.1%
    PRS 70.6%
  • dopaminergic neuron CL0000700
    CSI 5.1
    rCSI 28.8%
    PRS 55.6%
  • astrocyte of the cerebral cortex CL0002605
    CSI 5.2
    rCSI 11.7%
    PRS 52.1%
  • immature B cell CL0000816
    CSI 5.2
    rCSI 3.9%
    PRS 82.8%
  • interneuron CL0000099
    CSI 5.3
    rCSI 10.5%
    PRS 59.5%
  • central nervous system neuron CL2000029
    CSI 5.4
    rCSI 39.3%
    PRS 56.9%
  • cerebral cortex neuron CL0010012
    CSI 5.4
    rCSI 21.9%
    PRS 63.2%
  • acinar cell CL0000622
    CSI 5.4
    rCSI 7.9%
    PRS 81.4%
  • unswitched memory B cell CL0000970
    CSI 5.4
    rCSI 4.6%
    PRS 85.4%
  • hematopoietic stem cell CL0000037
    CSI 5.5
    rCSI 3.7%
    PRS 73.1%
  • enteroendocrine cell of small intestine CL0009006
    CSI 5.8
    rCSI 12.8%
    PRS 81.0%
  • epicardial adipocyte CL1000309
    CSI 5.9
    rCSI 19.1%
    PRS 69.4%
  • cerebellar granule cell CL0001031
    CSI 6.1
    rCSI 9.0%
    PRS 63.3%
  • retinal pigment epithelial cell CL0002586
    CSI 6.6
    rCSI 13.0%
    PRS 66.8%
  • enteroendocrine cell CL0000164
    CSI 6.6
    rCSI 9.0%
    PRS 71.3%
  • Mueller cell CL0000636
    CSI 6.7
    rCSI 15.4%
    PRS 61.6%
  • rod bipolar cell CL0000751
    CSI 7.3
    rCSI 13.0%
    PRS 63.3%
  • ionocyte CL0005006
    CSI 7.5
    rCSI 8.0%
    PRS 70.7%
  • neuroblast (sensu Nematoda and Protostomia) CL0000338
    CSI 7.9
    rCSI 9.2%
    PRS 62.7%
  • L2/3-6 intratelencephalic projecting glutamatergic neuron CL4023040
    CSI 8.2
    rCSI 19.9%
    PRS 49.8%
  • goblet cell CL0000160
    CSI 8.2
    rCSI 7.7%
    PRS 69.6%
  • paneth cell of epithelium of small intestine CL1000343
    CSI 8.2
    rCSI 23.1%
    PRS 79.9%
  • regular atrial cardiac myocyte CL0002129
    CSI 8.3
    rCSI 26.6%
    PRS 67.9%
  • erythroblast CL0000765
    CSI 8.3
    rCSI 22.1%
    PRS 79.4%

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 [PIP5K1B](/details-gene/8395) encodes phosphatidylinositol-4-phosphate 5-kinase type 1 beta, an enzyme that plays a crucial role in lipid-mediated signal transduction. This kinase catalyzes the phosphorylation of phosphatidylinositol-4-phosphate (PI4P) to generate phosphatidylinositol-4,5-bisphosphate (PIP2), a key second messenger and a precursor for other signaling molecules. Functionally, [PIP5K1B](/details-gene/8395) is integral to phospholipid metabolism, particularly at the plasma membrane, and is involved in regulating critical signaling cascades such as the PI3K/Akt and Wnt pathways. Expression data indicates that **Overall**, [PIP5K1B](/details-gene/8395) shows high significance in specialized and metabolically active cell types, most notably in [choroid plexus epithelial cells](/details-cell/CL0000706), [cardiac muscle cells](/details-cell/CL0000746), and a variety of inhibitory GABAergic cortical interneurons, suggesting a vital role in processes ranging from cerebrospinal fluid production to cardiac function and neurotransmission. ## Cellular Roles and Expression Landscape The expression profile of [PIP5K1B](/details-gene/8395) points to a specialized function in cells with high signaling and metabolic activity, rather than a ubiquitous housekeeping role. **Overall**, the gene's highest significance is observed in [choroid plexus epithelial cells](/details-cell/CL0000706) (CSI: 56.77), which are responsible for producing cerebrospinal fluid, indicating a potential role in the complex transport and secretory functions of these cells. A second major site of expression is in muscle tissue, specifically [cardiac muscle cells](/details-cell/CL0000746) (CSI: 38.53), where PIP2-dependent signaling is fundamental for excitation-contraction coupling and regulating ion channel activity. This is consistent with its clinical association with neuromuscular disorders ([153245](https://omim.org/entry/602745)). Furthermore, [PIP5K1B](/details-gene/8395) is a significant marker across multiple subtypes of central nervous system neurons, particularly inhibitory interneurons. These include [sst GABAergic cortical interneurons](/details-cell/CL4023017), [lamp5 GABAergic cortical interneurons](/details-cell/CL4023011), and [pvalb GABAergic cortical interneurons](/details-cell/CL4023018). This pattern suggests a specialized function in modulating inhibitory synaptic transmission, possibly through the regulation of synaptic vesicle cycling or the activity of membrane-bound receptors that rely on PIP2. The gene also shows notable expression in other specialized secretory or barrier cells like [BEST4+ enteroyctes](/details-cell/CL4030026) and [pulmonary ionocytes](/details-cell/CL0017000), further highlighting its importance in cellular contexts requiring precise control of membrane composition and signaling. ## Pathways and Molecular Function The functional annotations for [PIP5K1B](/details-gene/8395) align closely with its role as a key lipid kinase. Its molecular function is defined by its 1-phosphatidylinositol-4-phosphate 5-kinase activity ([GO:0016308](https://www.ebi.ac.uk/QuickGO/term/GO:0016308)), which is central to the phosphatidylinositol biosynthetic process ([GO:0006661](https://www.ebi.ac.uk/QuickGO/term/GO:0006661)). The enzyme is localized to the [plasma membrane](/details-cell/GO:0005886) and [cytosol](/details-cell/GO:0005829), where it participates in the synthesis of phosphatidylinositols (PIPs) ([R-HSA-1660499](https://reactome.org/content/detail/R-HSA-1660499)). This activity places [PIP5K1B](/details-gene/8395) at a critical junction in signal transduction. It is a component of intracellular signaling by second messengers ([R-HSA-9006925](https://reactome.org/content/detail/R-HSA-9006925)) and is involved in the negative regulation of the PI3K/Akt network ([R-HSA-199418](https://reactome.org/content/detail/R-HSA-199418)), a pathway essential for cell growth, survival, and metabolism. This regulatory role is highly relevant to its high expression in [cardiac muscle cells](/details-cell/CL0000746) and neurons, which depend on tightly controlled PI3K/Akt signaling. Additionally, its annotation in the Wnt signaling pathway ([R-HSA-195721](https://reactome.org/content/detail/R-HSA-195721)) suggests a broader role in developmental processes and cellular homeostasis. Several studies have confirmed its identity and kinase activity ([Link](https://doi.org/10.1038/ng1096-157), [Link](https://doi.org/10.1006/geno.1997.4726)). ## Research Directions The specific and high-level expression of [PIP5K1B](/details-gene/8395) in distinct cell types provides a foundation for several testable hypotheses regarding its physiological importance and potential role in disease. 1. **Hypothesis 1:** Given its exceptionally high CSI in [choroid plexus epithelial cells](/details-cell/CL0000706), [PIP5K1B](/details-gene/8395) is essential for cerebrospinal fluid (CSF) secretion. Its function may involve generating localized pools of PIP2 required for the trafficking and regulation of ion transporters and water channels that drive fluid movement across the blood-CSF barrier. 2. **Hypothesis 2:** The consistent high expression of [PIP5K1B](/details-gene/8395) across diverse GABAergic interneuron subtypes suggests it plays a specialized role in maintaining inhibitory tone in the cortex. It may regulate presynaptic vesicle recycling or postsynaptic receptor sensitivity, and its dysregulation could contribute to an excitatory/inhibitory imbalance seen in neurological disorders like epilepsy. **Experimental Approach to Test Hypothesis 1:** To test the role of [PIP5K1B](/details-gene/8395) in CSF production, a cell-type-specific conditional knockout mouse model could be generated. Using a Cre-Lox system with a promoter active specifically in [choroid plexus epithelial cells](/details-cell/CL0000706), [PIP5K1B](/details-gene/8395) could be deleted postnatally. The resulting phenotype could be assessed by measuring intracranial pressure, CSF volume and flow rates via MRI, and analyzing the ionic composition of the CSF. Furthermore, primary choroid plexus organoids derived from these mice could be used for *in vitro* assays to directly measure transepithelial fluid and ion transport, and to examine the localization and abundance of key transport proteins. **Therapeutic Potential:** As a kinase, [PIP5K1B](/details-gene/8395) is a potentially druggable target. However, its crucial roles in fundamental signaling pathways in vital tissues like the heart and brain suggest that systemic inhibition would likely lead to severe toxicity. The gene is linked to Lethal congenital contracture syndrome 1 ([153245](https://omim.org/entry/602745)), a severe autosomal recessive disorder, underscoring its importance in neuromuscular development and function. Therefore, therapeutic strategies targeting [PIP5K1B](/details-gene/8395) would need to be highly specific. In diseases caused by loss-of-function mutations, gene therapy could be a viable approach. For conditions driven by hyperactive PI signaling, highly targeted inhibitors delivered locally (e.g., intrathecally for neurological conditions) might be considered, but significant safety hurdles would need to be overcome.

Genular Protein ID: 2670566407

Symbol: PI51B_HUMAN

Name: N/A

UniProtKB Accession Codes:

Database IDs:

Citations:

PubMed ID: 8841185

Title: The Friedreich's ataxia gene encodes a novel phosphatidylinositol-4-phosphate 5-kinase.

PubMed ID: 8841185

DOI: 10.1038/ng1096-157

PubMed ID: 9177790

Title: Exon-intron structure of a 2.7-kb transcript of the STM7 gene with phosphatidylinositol-4-phosphate 5-kinase activity.

PubMed ID: 9177790

DOI: 10.1006/geno.1997.4726

PubMed ID: 14702039

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

PubMed ID: 14702039

DOI: 10.1038/ng1285

PubMed ID: 15164053

Title: DNA sequence and analysis of human chromosome 9.

PubMed ID: 15164053

DOI: 10.1038/nature02465

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: 8955136

Title: Type I phosphatidylinositol-4-phosphate 5-kinases are distinct members of this novel lipid kinase family.

PubMed ID: 8955136

DOI: 10.1074/jbc.271.51.32937

PubMed ID: 19369195

Title: Large-scale proteomics analysis of the human kinome.

PubMed ID: 19369195

DOI: 10.1074/mcp.m800588-mcp200

PubMed ID: 23186163

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

PubMed ID: 23186163

DOI: 10.1021/pr300630k

Sequence Information:

  • Length: 540
  • Mass: 61036
  • Checksum: 7A683794A39A20B6
  • Sequence:
  • MSSAAENGEA APGKQNEEKT YKKTASSAIK GAIQLGIGYT VGNLTSKPER DVLMQDFYVV 
    ESVFLPSEGS NLTPAHHYPD FRFKTYAPLA FRYFRELFGI KPDDYLYSIC SEPLIELSNP 
    GASGSLFFVT SDDEFIIKTV QHKEAEFLQK LLPGYYMNLN QNPRTLLPKF YGLYCMQSGG 
    INIRIVVMNN VLPRSMRMHF TYDLKGSTYK RRASRKEREK SNPTFKDLDF LQDMHEGLYF 
    DTETYNALMK TLQRDCRVLE SFKIMDYSLL LGIHFLDHSL KEKEEETPQN VPDAKRTGMQ 
    KVLYSTAMES IQGPGKSGDG IITENPDTMG GIPAKSHRGE KLLLFMGIID ILQSYRLMKK 
    LEHSWKALVY DGDTVSVHRP SFYADRFLKF MNSRVFKKIQ ALKASPSKKR CNSIAALKAT 
    SQEIVSSISQ EWKDEKRDLL TEGQSFSSLD EEALGSRHRP DLVPSTPSLF EAASLATTIS 
    SSSLYVNEHY PHDRPTLYSN SKGLPSSSTF TLEEGTIYLT AEPNTLEVQD DNASVLDVYL

Genular Protein ID: 629072726

Symbol: Q7KYT6_HUMAN

Name: N/A

UniProtKB Accession Codes:

Database IDs:

Citations:

PubMed ID: 8955136

Title: Type I phosphatidylinositol-4-phosphate 5-kinases are distinct members of this novel lipid kinase family.

PubMed ID: 8955136

DOI: 10.1074/jbc.271.51.32937

Sequence Information:

  • Length: 334
  • Mass: 37787
  • Checksum: 2B36A6C0590C3F8A
  • Sequence:
  • STYKRRASRK EREKSNPTFK DLDFLQDMHE GLYFDTETYN ALMKTLQRDC RVLESFKIMD 
    YSLLLGIHFL DHSLKEKEEE TPQNVPDAKR TGMQKVLYST AMESIQGPGK SGDGIITENP 
    DTMGGIPAKS HRGEKLLLFM GIIDILQSYR LMKKLEHSWK ALVYDGDTVS VHRPSFYADR 
    FLKFMNSRVF KKIQALKASP SKKRCNSIAA LKATSQEIVS SISQEWKDEK RDLLTEGQSF 
    SSLDEEALGS RHRPDLVPST PSLFEAASLA TTISSSSLYV NEHYPHDRPT LYSNSKGLPS 
    SSTFTLEEGT IYLTAEPNTL EVQDDNASVL DVYL