Details for: PRPSAP1

Gene ID: 5635

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: PRPSAP1

Ensembl ID: ENSG00000161542

Description: phosphoribosyl pyrophosphate synthetase associated protein 1

Selected Context(s):  Overall

Cell Significance Landscape

Contexts:

Associated with

Significant Cells

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

  • intestinal tuft cell CL0019032
    CSI 12.07
    rCSI 18.45%
    PRS 40.8
  • mesodermal cell CL0000222
    CSI 10.64
    rCSI 12.77%
    PRS 34.88
  • myoepithelial cell CL0000185
    CSI 10.51
    rCSI 26.59%
    PRS 43.87
  • bronchus fibroblast of lung CL2000093
    CSI 10.44
    rCSI 8.48%
    PRS 37.34
  • progenitor cell CL0011026
    CSI 6.06
    rCSI 12.88%
    PRS 43.17
  • kidney loop of Henle thin descending limb epithelial cell CL1001111
    CSI 5.65
    rCSI 8.01%
    PRS 34.13
  • type B pancreatic cell CL0000169
    CSI 5.57
    rCSI 12.33%
    PRS 33.85
  • fallopian tube secretory epithelial cell CL4030006
    CSI 5.32
    rCSI 5.12%
    PRS 37.17
  • lamp5 GABAergic cortical interneuron CL4023011
    CSI 5.11
    rCSI 8.58%
    PRS 23.41
  • chondrocyte CL0000138
    CSI 4.56
    rCSI 7.25%
    PRS 30.9
  • pro-B cell CL0000826
    CSI 4.4
    rCSI 3.65%
    PRS 37.19
  • immature B cell CL0000816
    CSI 4.34
    rCSI 3.22%
    PRS 48.93
  • alveolar adventitial fibroblast CL4028006
    CSI 4.14
    rCSI 6.54%
    PRS 37.21
  • CD4-positive, alpha-beta thymocyte CL0000810
    CSI 3.91
    rCSI 3.13%
    PRS 57.32
  • regular ventricular cardiac myocyte CL0002131
    CSI 3.83
    rCSI 23.89%
    PRS 30.16
  • CD4-positive helper T cell CL0000492
    CSI 3.71
    rCSI 2.81%
    PRS 47.68
  • hematopoietic stem cell CL0000037
    CSI 3.55
    rCSI 2.36%
    PRS 40.7
  • contractile cell CL0000183
    CSI 3.48
    rCSI 10.26%
    PRS 35.33
  • unswitched memory B cell CL0000970
    CSI 3.37
    rCSI 2.84%
    PRS 53.06
  • club cell CL0000158
    CSI 3.3
    rCSI 4.83%
    PRS 37.29
  • corticothalamic-projecting glutamatergic cortical neuron CL4023013
    CSI 3.21
    rCSI 18.88%
    PRS 24.57
  • interstitial cell of Cajal CL0002088
    CSI 3.02
    rCSI 3.84%
    PRS 41.13
  • epithelial cell of lung CL0000082
    CSI 3
    rCSI 2.49%
    PRS 34.93
  • effector CD8-positive, alpha-beta T cell CL0001050
    CSI 2.96
    rCSI 2.25%
    PRS 46.37
  • cardiac muscle cell CL0000746
    CSI 2.93
    rCSI 4.21%
    PRS 29.26
  • Kupffer cell CL0000091
    CSI 2.9
    rCSI 6.64%
    PRS 35.94
  • cerebellar granule cell CL0001031
    CSI 2.86
    rCSI 4.21%
    PRS 33.6
  • renal alpha-intercalated cell CL0005011
    CSI 2.85
    rCSI 3.81%
    PRS 44.08
  • ionocyte CL0005006
    CSI 2.84
    rCSI 3.04%
    PRS 34.25
  • epithelial cell of lower respiratory tract CL0002632
    CSI 2.8
    rCSI 2.17%
    PRS 36.28
  • pancreatic D cell CL0000173
    CSI 2.72
    rCSI 2.68%
    PRS 38.65
  • Mueller cell CL0000636
    CSI 2.7
    rCSI 6.17%
    PRS 31.43
  • pancreatic A cell CL0000171
    CSI 2.62
    rCSI 2.74%
    PRS 38.54
  • retina horizontal cell CL0000745
    CSI 2.58
    rCSI 3.93%
    PRS 33.79
  • astrocyte of the cerebral cortex CL0002605
    CSI 2.55
    rCSI 5.71%
    PRS 23.92
  • effector memory CD8-positive, alpha-beta T cell, terminally differentiated CL0001062
    CSI 2.51
    rCSI 12.6%
    PRS 46.3
  • melanocyte CL0000148
    CSI 2.46
    rCSI 1.82%
    PRS 31.34
  • CD4-positive, CD25-positive, alpha-beta regulatory T cell CL0000792
    CSI 2.44
    rCSI 2.39%
    PRS 51.06
  • group 3 innate lymphoid cell CL0001071
    CSI 2.43
    rCSI 1.83%
    PRS 39.09
  • naive T cell CL0000898
    CSI 2.43
    rCSI 1.69%
    PRS 48.41
  • secretory cell CL0000151
    CSI 2.41
    rCSI 2.51%
    PRS 37.07
  • rod bipolar cell CL0000751
    CSI 2.4
    rCSI 4.31%
    PRS 30.92
  • cerebral cortex GABAergic interneuron CL0010011
    CSI 2.39
    rCSI 7.04%
    PRS 40.86
  • cerebral cortex endothelial cell CL1001602
    CSI 2.37
    rCSI 4.1%
    PRS 28.6
  • ON-bipolar cell CL0000749
    CSI 2.33
    rCSI 3.47%
    PRS 39.75
  • fraction A pre-pro B cell CL0002045
    CSI 2.32
    rCSI 2.66%
    PRS 59.53
  • lung ciliated cell CL1000271
    CSI 2.31
    rCSI 2.67%
    PRS 27.99
  • early lymphoid progenitor CL0000936
    CSI 2.3
    rCSI 2.02%
    PRS 41.17
  • hepatocyte CL0000182
    CSI 2.28
    rCSI 4.07%
    PRS 34.82
  • common myeloid progenitor CL0000049
    CSI 2.23
    rCSI 1.8%
    PRS 36.85
  • CD8-positive, CD28-negative, alpha-beta regulatory T cell CL0000920
    CSI 2.23
    rCSI 4.45%
    PRS 53.98
  • pulmonary capillary endothelial cell CL4028001
    CSI 2.21
    rCSI 4.21%
    PRS 52.85
  • retinal blood vessel endothelial cell CL0002585
    CSI 2.16
    rCSI 3.45%
    PRS 39.54
  • GABAergic neuron CL0000617
    CSI 2.15
    rCSI 7.2%
    PRS 27.2
  • vascular leptomeningeal cell CL4023051
    CSI 2.11
    rCSI 3.7%
    PRS 29.73
  • differentiation-committed oligodendrocyte precursor CL4023059
    CSI 2.07
    rCSI 3.76%
    PRS 31.72
  • intestine goblet cell CL0019031
    CSI 2.04
    rCSI 1.81%
    PRS 35.97
  • perivascular cell CL4033054
    CSI 2.03
    rCSI 2.77%
    PRS 40.63
  • neural crest cell CL0011012
    CSI 2.02
    rCSI 1.6%
    PRS 26.02
  • retinal pigment epithelial cell CL0002586
    CSI 2.01
    rCSI 3.99%
    PRS 36.55
  • interneuron CL0000099
    CSI 1.99
    rCSI 4%
    PRS 27.87
  • megakaryocyte-erythroid progenitor cell CL0000050
    CSI 1.99
    rCSI 1.79%
    PRS 33.5
  • neuroblast (sensu Nematoda and Protostomia) CL0000338
    CSI 1.98
    rCSI 2.29%
    PRS 31.89
  • activated type II NK T cell CL0000931
    CSI 1.97
    rCSI 2.22%
    PRS 52.08
  • activated CD4-positive, alpha-beta T cell CL0000896
    CSI 1.96
    rCSI 1.82%
    PRS 56.54
  • colon epithelial cell CL0011108
    CSI 1.96
    rCSI 2.05%
    PRS 34.12
  • goblet cell CL0000160
    CSI 1.95
    rCSI 1.84%
    PRS 37.68
  • fibroblast of cardiac tissue CL0002548
    CSI 1.89
    rCSI 9.06%
    PRS 34.65
  • enteric smooth muscle cell CL0002504
    CSI 1.89
    rCSI 2.7%
    PRS 39.12
  • basal cell CL0000646
    CSI 1.89
    rCSI 2.53%
    PRS 38.22
  • ciliated cell CL0000064
    CSI 1.88
    rCSI 3.05%
    PRS 35.61
  • CD4-positive, alpha-beta cytotoxic T cell CL0000934
    CSI 1.88
    rCSI 2.58%
    PRS 57.04
  • plasmacytoid dendritic cell, human CL0001058
    CSI 1.87
    rCSI 1.31%
    PRS 38.2
  • caudal ganglionic eminence derived cortical interneuron CL4023064
    CSI 1.87
    rCSI 3.3%
    PRS 22.55
  • kidney interstitial alternatively activated macrophage CL1000695
    CSI 1.84
    rCSI 4.79%
    PRS 35.62
  • multi-ciliated epithelial cell CL0005012
    CSI 1.83
    rCSI 1.82%
    PRS 31.44
  • inhibitory interneuron CL0000498
    CSI 1.82
    rCSI 4.2%
    PRS 30.13
  • cardiac neuron CL0010022
    CSI 1.81
    rCSI 5.79%
    PRS 33.46
  • radial glial cell CL0000681
    CSI 1.8
    rCSI 2.5%
    PRS 36.45
  • corneal epithelial cell CL0000575
    CSI 1.79
    rCSI 5.13%
    PRS 54.36
  • ciliated epithelial cell CL0000067
    CSI 1.74
    rCSI 1.53%
    PRS 27.3
  • intestinal epithelial cell CL0002563
    CSI 1.74
    rCSI 1.82%
    PRS 36.59
  • respiratory hillock cell CL4030023
    CSI 1.73
    rCSI 3.09%
    PRS 52.57
  • stem cell CL0000034
    CSI 1.72
    rCSI 1.66%
    PRS 28.32
  • common dendritic progenitor CL0001029
    CSI 1.7
    rCSI 2.14%
    PRS 45.32
  • respiratory suprabasal cell CL4033048
    CSI 1.7
    rCSI 2.18%
    PRS 40.93
  • pvalb GABAergic cortical interneuron CL4023018
    CSI 1.7
    rCSI 2.11%
    PRS 22.1
  • mucus secreting cell CL0000319
    CSI 1.68
    rCSI 2.68%
    PRS 45.87
  • T-helper 17 cell CL0000899
    CSI 1.65
    rCSI 1.31%
    PRS 57.56
  • hepatic stellate cell CL0000632
    CSI 1.64
    rCSI 6.16%
    PRS 31.05
  • blood vessel endothelial cell CL0000071
    CSI 1.63
    rCSI 3.39%
    PRS 35.26
  • duct epithelial cell CL0000068
    CSI 1.62
    rCSI 2.38%
    PRS 38.93
  • VIP GABAergic cortical interneuron CL4023016
    CSI 1.6
    rCSI 1.91%
    PRS 23.36
  • acinar cell of salivary gland CL0002623
    CSI 1.58
    rCSI 36.76%
    PRS 59.59
  • choroid plexus epithelial cell CL0000706
    CSI 1.57
    rCSI 2.58%
    PRS 28.68
  • cardiac endothelial cell CL0010008
    CSI 1.56
    rCSI 6.3%
    PRS 35.28
  • periportal region hepatocyte CL0019026
    CSI 1.55
    rCSI 6.02%
    PRS 46.05
  • OFF-bipolar cell CL0000750
    CSI 1.54
    rCSI 2.11%
    PRS 47.37
  • neuroblast (sensu Vertebrata) CL0000031
    CSI 1.53
    rCSI 1.97%
    PRS 34.76
  • mononuclear phagocyte CL0000113
    CSI 1.52
    rCSI 3.34%
    PRS 40.34
  • erythroid progenitor cell CL0000038
    CSI 0.2
    rCSI 1.1%
    PRS 47.4%
  • indirect pathway medium spiny neuron CL4023029
    CSI 0.2
    rCSI 5.3%
    PRS 23.7%
  • direct pathway medium spiny neuron CL4023026
    CSI 0.2
    rCSI 5.5%
    PRS 22.8%
  • ON midget ganglion cell CL4033046
    CSI 0.3
    rCSI 5.3%
    PRS 30.7%
  • OFF midget ganglion cell CL4033047
    CSI 0.3
    rCSI 5.6%
    PRS 31.9%
  • central nervous system neuron CL2000029
    CSI 0.3
    rCSI 2.1%
    PRS 26.1%
  • ON parasol ganglion cell CL4033052
    CSI 0.4
    rCSI 6.1%
    PRS 30.4%
  • L6b glutamatergic cortical neuron CL4023038
    CSI 0.5
    rCSI 1.4%
    PRS 24.4%
  • luminal epithelial cell of mammary gland CL0002326
    CSI 0.5
    rCSI 0.9%
    PRS 52.2%
  • mesenchymal cell CL0008019
    CSI 0.5
    rCSI 1.2%
    PRS 33.9%
  • vein endothelial cell of respiratory system CL4033008
    CSI 0.5
    rCSI 3.3%
    PRS 56.5%
  • endothelial cell of placenta CL0009092
    CSI 0.6
    rCSI 2.8%
    PRS 47.0%
  • dopaminergic neuron CL0000700
    CSI 0.6
    rCSI 3.2%
    PRS 24.9%
  • podocyte CL0000653
    CSI 0.6
    rCSI 2.6%
    PRS 35.1%
  • L5 extratelencephalic projecting glutamatergic cortical neuron CL4023041
    CSI 0.6
    rCSI 2.1%
    PRS 22.4%
  • microcirculation associated smooth muscle cell CL0008035
    CSI 0.6
    rCSI 1.8%
    PRS 39.3%
  • L2/3-6 intratelencephalic projecting glutamatergic neuron CL4023040
    CSI 0.6
    rCSI 1.5%
    PRS 22.7%
  • kidney connecting tubule epithelial cell CL1000768
    CSI 0.6
    rCSI 1.6%
    PRS 28.7%
  • large pre-B-II cell CL0000957
    CSI 0.8
    rCSI 2.2%
    PRS 51.6%
  • retinal ganglion cell CL0000740
    CSI 0.8
    rCSI 1.7%
    PRS 26.9%
  • placental villous trophoblast CL2000060
    CSI 0.8
    rCSI 1.3%
    PRS 34.6%
  • late pro-B cell CL0002048
    CSI 0.9
    rCSI 2.1%
    PRS 68.5%
  • pancreatic ductal cell CL0002079
    CSI 0.9
    rCSI 1.7%
    PRS 37.9%
  • lung microvascular endothelial cell CL2000016
    CSI 0.9
    rCSI 17.3%
    PRS 65.3%
  • glial cell CL0000125
    CSI 0.9
    rCSI 3.4%
    PRS 32.2%
  • GABAergic amacrine cell CL4030027
    CSI 0.9
    rCSI 3.2%
    PRS 30.5%
  • CD14-low, CD16-positive monocyte CL0002396
    CSI 0.9
    rCSI 0.7%
    PRS 34.8%
  • forebrain radial glial cell CL0013000
    CSI 0.9
    rCSI 3.0%
    PRS 44.9%
  • extravillous trophoblast CL0008036
    CSI 1.0
    rCSI 1.2%
    PRS 32.8%
  • ciliated columnar cell of tracheobronchial tree CL0002145
    CSI 1.0
    rCSI 2.2%
    PRS 35.7%
  • kidney epithelial cell CL0002518
    CSI 1.0
    rCSI 1.9%
    PRS 60.2%
  • mammary gland epithelial cell CL0002327
    CSI 1.1
    rCSI 3.7%
    PRS 52.6%
  • pulmonary artery endothelial cell CL1001568
    CSI 1.1
    rCSI 1.5%
    PRS 49.2%
  • sst GABAergic cortical interneuron CL4023017
    CSI 1.1
    rCSI 1.4%
    PRS 24.2%
  • near-projecting glutamatergic cortical neuron CL4023012
    CSI 1.1
    rCSI 4.2%
    PRS 24.3%
  • parietal epithelial cell CL1000452
    CSI 1.2
    rCSI 3.3%
    PRS 31.0%
  • renal interstitial pericyte CL1001318
    CSI 1.3
    rCSI 3.5%
    PRS 34.2%
  • transit amplifying cell of colon CL0009011
    CSI 1.3
    rCSI 1.5%
    PRS 40.2%
  • tuft cell of colon CL0009041
    CSI 1.3
    rCSI 3.0%
    PRS 56.2%
  • retinal cone cell CL0000573
    CSI 1.3
    rCSI 2.1%
    PRS 28.7%
  • squamous epithelial cell CL0000076
    CSI 1.3
    rCSI 3.2%
    PRS 42.4%
  • conjunctival epithelial cell CL1000432
    CSI 1.4
    rCSI 2.1%
    PRS 36.8%
  • acinar cell CL0000622
    CSI 1.4
    rCSI 2.0%
    PRS 46.6%
  • chandelier pvalb GABAergic cortical interneuron CL4023036
    CSI 1.4
    rCSI 4.4%
    PRS 26.4%
  • retinal bipolar neuron CL0000748
    CSI 1.4
    rCSI 2.6%
    PRS 27.9%
  • Schwann cell CL0002573
    CSI 1.4
    rCSI 4.1%
    PRS 37.3%
  • sncg GABAergic cortical interneuron CL4023015
    CSI 1.4
    rCSI 2.3%
    PRS 25.3%
  • peripheral nervous system neuron CL2000032
    CSI 1.4
    rCSI 2.0%
    PRS 31.4%
  • neural progenitor cell CL0011020
    CSI 1.5
    rCSI 6.5%
    PRS 31.5%
  • glioblast CL0000030
    CSI 1.5
    rCSI 2.4%
    PRS 31.4%
  • intermediate monocyte CL0002393
    CSI 1.5
    rCSI 2.3%
    PRS 37.7%
  • mononuclear phagocyte CL0000113
    CSI 1.5
    rCSI 3.3%
    PRS 40.3%
  • neuroblast (sensu Vertebrata) CL0000031
    CSI 1.5
    rCSI 2.0%
    PRS 34.8%
  • OFF-bipolar cell CL0000750
    CSI 1.5
    rCSI 2.1%
    PRS 47.4%
  • periportal region hepatocyte CL0019026
    CSI 1.6
    rCSI 6.0%
    PRS 46.1%
  • cardiac endothelial cell CL0010008
    CSI 1.6
    rCSI 6.3%
    PRS 35.3%
  • choroid plexus epithelial cell CL0000706
    CSI 1.6
    rCSI 2.6%
    PRS 28.7%
  • acinar cell of salivary gland CL0002623
    CSI 1.6
    rCSI 36.8%
    PRS 59.6%
  • VIP GABAergic cortical interneuron CL4023016
    CSI 1.6
    rCSI 1.9%
    PRS 23.4%
  • duct epithelial cell CL0000068
    CSI 1.6
    rCSI 2.4%
    PRS 38.9%
  • blood vessel endothelial cell CL0000071
    CSI 1.6
    rCSI 3.4%
    PRS 35.3%
  • hepatic stellate cell CL0000632
    CSI 1.6
    rCSI 6.2%
    PRS 31.1%
  • T-helper 17 cell CL0000899
    CSI 1.7
    rCSI 1.3%
    PRS 57.6%
  • mucus secreting cell CL0000319
    CSI 1.7
    rCSI 2.7%
    PRS 45.9%
  • pvalb GABAergic cortical interneuron CL4023018
    CSI 1.7
    rCSI 2.1%
    PRS 22.1%
  • respiratory suprabasal cell CL4033048
    CSI 1.7
    rCSI 2.2%
    PRS 40.9%
  • common dendritic progenitor CL0001029
    CSI 1.7
    rCSI 2.1%
    PRS 45.3%
  • stem cell CL0000034
    CSI 1.7
    rCSI 1.7%
    PRS 28.3%
  • respiratory hillock cell CL4030023
    CSI 1.7
    rCSI 3.1%
    PRS 52.6%
  • intestinal epithelial cell CL0002563
    CSI 1.7
    rCSI 1.8%
    PRS 36.6%
  • ciliated epithelial cell CL0000067
    CSI 1.7
    rCSI 1.5%
    PRS 27.3%
  • corneal epithelial cell CL0000575
    CSI 1.8
    rCSI 5.1%
    PRS 54.4%
  • radial glial cell CL0000681
    CSI 1.8
    rCSI 2.5%
    PRS 36.5%
  • cardiac neuron CL0010022
    CSI 1.8
    rCSI 5.8%
    PRS 33.5%
  • inhibitory interneuron CL0000498
    CSI 1.8
    rCSI 4.2%
    PRS 30.1%
  • multi-ciliated epithelial cell CL0005012
    CSI 1.8
    rCSI 1.8%
    PRS 31.4%
  • kidney interstitial alternatively activated macrophage CL1000695
    CSI 1.8
    rCSI 4.8%
    PRS 35.6%
  • caudal ganglionic eminence derived cortical interneuron CL4023064
    CSI 1.9
    rCSI 3.3%
    PRS 22.6%
  • plasmacytoid dendritic cell, human CL0001058
    CSI 1.9
    rCSI 1.3%
    PRS 38.2%
  • CD4-positive, alpha-beta cytotoxic T cell CL0000934
    CSI 1.9
    rCSI 2.6%
    PRS 57.0%
  • ciliated cell CL0000064
    CSI 1.9
    rCSI 3.1%
    PRS 35.6%
  • basal cell CL0000646
    CSI 1.9
    rCSI 2.5%
    PRS 38.2%
  • enteric smooth muscle cell CL0002504
    CSI 1.9
    rCSI 2.7%
    PRS 39.1%
  • fibroblast of cardiac tissue CL0002548
    CSI 1.9
    rCSI 9.1%
    PRS 34.7%
  • goblet cell CL0000160
    CSI 2.0
    rCSI 1.8%
    PRS 37.7%
  • colon epithelial cell CL0011108
    CSI 2.0
    rCSI 2.1%
    PRS 34.1%
  • activated CD4-positive, alpha-beta T cell CL0000896
    CSI 2.0
    rCSI 1.8%
    PRS 56.5%
  • activated type II NK T cell CL0000931
    CSI 2.0
    rCSI 2.2%
    PRS 52.1%
  • neuroblast (sensu Nematoda and Protostomia) CL0000338
    CSI 2.0
    rCSI 2.3%
    PRS 31.9%
  • megakaryocyte-erythroid progenitor cell CL0000050
    CSI 2.0
    rCSI 1.8%
    PRS 33.5%
  • interneuron CL0000099
    CSI 2.0
    rCSI 4.0%
    PRS 27.9%
  • retinal pigment epithelial cell CL0002586
    CSI 2.0
    rCSI 4.0%
    PRS 36.6%
  • neural crest cell CL0011012
    CSI 2.0
    rCSI 1.6%
    PRS 26.0%
  • perivascular cell CL4033054
    CSI 2.0
    rCSI 2.8%
    PRS 40.6%
  • intestine goblet cell CL0019031
    CSI 2.0
    rCSI 1.8%
    PRS 36.0%
  • differentiation-committed oligodendrocyte precursor CL4023059
    CSI 2.1
    rCSI 3.8%
    PRS 31.7%
  • vascular leptomeningeal cell CL4023051
    CSI 2.1
    rCSI 3.7%
    PRS 29.7%
  • GABAergic neuron CL0000617
    CSI 2.2
    rCSI 7.2%
    PRS 27.2%
  • retinal blood vessel endothelial cell CL0002585
    CSI 2.2
    rCSI 3.5%
    PRS 39.5%
  • pulmonary capillary endothelial cell CL4028001
    CSI 2.2
    rCSI 4.2%
    PRS 52.9%

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 Phosphoribosyl pyrophosphate synthetase associated protein 1 ([PRPSAP1](/details-gene/5635)) is a protein-coding gene located on chromosome 17q25.1. Functionally, it acts as a negative regulator, specifically an enzyme inhibitor, of phosphoribosyl pyrophosphate synthetase (PRPS), a key enzyme in the [5-phosphoribose 1-diphosphate biosynthetic process](/details-go/GO:0006015). This role places [PRPSAP1](/details-gene/5635) as a crucial component in modulating the metabolic flux of purine and pyrimidine synthesis. Expression data from the **Overall** context indicates its significance is highest in metabolically active or proliferative cell types, including [intestinal tuft cell](/details-cell/CL0019032), [mesodermal cell](/details-cell/CL0000222), and [myoepithelial cell](/details-cell/CL0000185). The gene is associated with Arts syndrome ([601249](https://omim.org/entry/601249)), highlighting the clinical relevance of the pathway it regulates. ## Cellular Roles and Expression Landscape The expression profile of [PRPSAP1](/details-gene/5635) suggests its fundamental importance in cellular metabolism across diverse lineages, with particular prominence in cells undergoing rapid proliferation or maintaining high metabolic activity. **Overall**, the gene shows high significance in several key cellular contexts: * **Specialized Epithelial and Secretory Cells:** The highest CSI scores are observed in [intestinal tuft cell](/details-cell/CL0019032) (CSI: 12.07), [myoepithelial cell](/details-cell/CL0000185) (CSI: 10.51), [type B pancreatic cell](/details-cell/CL0000169) (CSI: 5.57), and [fallopian tube secretory epithelial cell](/details-cell/CL4030006) (CSI: 5.32). This pattern suggests a critical role in supporting the high energetic and biosynthetic demands of chemosensory, contractile, and secretory functions in these tissues. * **Mesenchymal and Structural Cells:** Significant expression in [mesodermal cell](/details-cell/CL0000222) (CSI: 10.64), [bronchus fibroblast of lung](/details-cell/CL2000093) (CSI: 10.44), and [chondrocyte](/details-cell/CL0000138) (CSI: 4.56) indicates its involvement in the metabolic homeostasis of connective and structural tissues. * **Progenitor and Developing Cells:** [PRPSAP1](/details-gene/5635) is also a significant marker in [progenitor cell](/details-cell/CL0011026) (CSI: 6.06) populations and developing lymphocytes, such as [pro-B cell](/details-cell/CL0000826) (CSI: 4.40), [immature B cell](/details-cell/CL0000816) (CSI: 4.34), and [CD4-positive, alpha-beta thymocyte](/details-cell/CL0000810) (CSI: 3.91). This is consistent with its function in nucleotide synthesis, a process essential for the rapid cell division characteristic of development and immune cell maturation. ## Pathways and Molecular Function [PRPSAP1](/details-gene/5635) is a cytoplasmic protein that functions primarily as a modulator of nucleotide metabolism. Its annotation as an [enzyme inhibitor activity](/details-go/GO:0004857) and [enzyme regulator activity](/details-go/GO:0030234) provider is central to its role. It specifically regulates the activity of PRPS enzymes, which catalyze the synthesis of 5-phosphoribosyl-1-pyrophosphate (PRPP), a rate-limiting precursor for the *de novo* and salvage pathways of purine and pyrimidine biosynthesis, as described in [purine nucleotide biosynthetic process](/details-go/GO:0006164). The initial cloning of its cDNA confirmed its identity as a PRPS-associated protein [Link](https://doi.org/10.1016/0167-4781(96)00030-9). Its ability to engage in [identical protein binding](/details-go/GO:0042802) and general [protein binding](/details-go/GO:0005515) suggests it may function as part of a larger regulatory complex that senses cellular metabolic status to fine-tune nucleotide production. This regulatory capacity is likely indispensable in the highly proliferative or metabolically demanding cell types where its expression is most significant. ## Research Directions The widespread yet context-specific significance of [PRPSAP1](/details-gene/5635) points to several avenues for future research, particularly concerning its role in cellular proliferation and metabolic disease. **Proposed Hypotheses:** 1. Given its high significance in developing lymphocytes like [pro-B cell](/details-cell/CL0000826), dysregulation of [PRPSAP1](/details-gene/5635) may lead to immunodeficiency by disrupting the precise nucleotide supply required for V(D)J recombination and the clonal expansion of lymphocyte progenitors. 2. The elevated significance of [PRPSAP1](/details-gene/5635) in secretory cells, such as pancreatic beta cells, suggests that it is a critical checkpoint for matching insulin production with metabolic demand. Loss of [PRPSAP1](/details-gene/5635) function could lead to unchecked PRPS activity, metabolic stress, and eventual beta-cell dysfunction. **Experimental Approach:** To test the first hypothesis regarding lymphocyte development, a compelling approach would be to use a conditional knockout mouse model. Specifically, generating a mouse with [PRPSAP1](/details-gene/5635) deleted in the hematopoietic lineage (e.g., *Vav1-iCre;Prpsap1fl/fl*) would allow for a detailed investigation of its role *in vivo*. Bone marrow and thymus from these mice could be analyzed by flow cytometry to identify specific blocks in B and T cell development. A predicted outcome would be an accumulation of cells at the [pro-B cell](/details-cell/CL0000826) stage with a corresponding reduction in subsequent stages, coupled with increased apoptosis. This could be complemented with *in vitro* cultures of lymphoid progenitors followed by metabolomic analysis to directly measure nucleotide pool imbalances upon [PRPSAP1](/details-gene/5635) deletion. **Therapeutic Potential:** The role of [PRPSAP1](/details-gene/5635) as a negative regulator of a critical metabolic pathway makes it a potential therapeutic target. Because nucleotide synthesis is a hallmark of rapidly dividing cells, targeting this pathway is a well-established anti-cancer strategy. As [PRPSAP1](/details-gene/5635) is an inhibitor, strategies would likely focus on mimicking or stabilizing its inhibitory function. This could be particularly relevant for hematological malignancies that show dependence on *de novo* purine synthesis. A small molecule that enhances the binding of [PRPSAP1](/details-gene/5635) to PRPS enzymes could offer a more specific and targeted **inhibition** of nucleotide production compared to broad-spectrum antimetabolites, potentially reducing off-target toxicity.

Genular Protein ID: 3662273680

Symbol: KPRA_HUMAN

Name: Phosphoribosyl pyrophosphate synthase-associated protein 1

UniProtKB Accession Codes:

Database IDs:

Citations:

PubMed ID: 8611620

Title: Cloning and sequencing of human complementary DNA for the phosphoribosylpyrophosphate synthetase-associated protein 39.

PubMed ID: 8611620

DOI: 10.1016/0167-4781(96)00030-9

PubMed ID: 14702039

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

PubMed ID: 14702039

DOI: 10.1038/ng1285

PubMed ID: 16625196

Title: DNA sequence of human chromosome 17 and analysis of rearrangement in the human lineage.

PubMed ID: 16625196

DOI: 10.1038/nature04689

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: 18669648

Title: A quantitative atlas of mitotic phosphorylation.

PubMed ID: 18669648

DOI: 10.1073/pnas.0805139105

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: 23186163

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

PubMed ID: 23186163

DOI: 10.1021/pr300630k

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

Sequence Information:

  • Length: 356
  • Mass: 39394
  • Checksum: 38CC87AB2C555717
  • Sequence:
  • MNAARTGYRV FSANSTAACT ELAKRITERL GAELGKSVVY QETNGETRVE IKESVRGQDI 
    FIIQTIPRDV NTAVMELLIM AYALKTACAR NIIGVIPYFP YSKQSKMRKR GSIVCKLLAS 
    MLAKAGLTHI ITMDLHQKEI QGFFSFPVDN LRASPFLLQY IQEEIPNYRN AVIVAKSPDA 
    AKRAQSYAER LRLGLAVIHG EAQCTELDMD DGRHSPPMVK NATVHPGLEL PLMMAKEKPP 
    ITVVGDVGGR IAIIVDDIID DVESFVAAAE ILKERGAYKI YVMATHGILS AEAPRLIEES 
    SVDEVVVTNT VPHEVQKLQC PKIKTVDISL ILSEAIRRIH NGESMAYLFR NITVDD

Genular Protein ID: 674819129

Symbol: B4DP31_HUMAN

Name: N/A

UniProtKB Accession Codes:

Database IDs:

Citations:

PubMed ID: 11237011

Title: Initial sequencing and analysis of the human genome.

PubMed ID: 11237011

DOI: 10.1038/35057062

PubMed ID: 15496913

Title: Finishing the euchromatic sequence of the human genome.

PubMed ID: 15496913

DOI: 10.1038/nature03001

PubMed ID: 16625196

Title: DNA sequence of human chromosome 17 and analysis of rearrangement in the human lineage.

PubMed ID: 16625196

DOI: 10.1038/nature04689

PubMed ID: 18669648

Title: A quantitative atlas of mitotic phosphorylation.

PubMed ID: 18669648

DOI: 10.1073/pnas.0805139105

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

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

Sequence Information:

  • Length: 282
  • Mass: 31266
  • Checksum: 51832844BF1BF011
  • Sequence:
  • MELLIMAYAL KTACARNIIG VIPYFPYSKQ SKMRKRGSIV CKLLASMLAK AGLTHIITMD 
    LHQKEIQGFF SFPVDNLRAS PFLLQYIQEE IPNYRNAVIV AKSPDAAKRA QSYAERLRLG 
    LAVIHGEAQC TELDMDDGRH SPPMVKNATV HPGLELPLMM AKEKPPITVV GDVGGRIAII 
    VDDIIDDVES FVAAAEILKE RGAYKIYVMA THGILSAEAP RLIEESSVDE VVVTNTVPHE 
    VQKLQCPKIK TVDISLILSE AIRRIHNGES MAYLFRNITV DD