Details for: DDX18

Gene ID: 8886

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: DDX18

Ensembl ID: ENSG00000088205

Description: DEAD-box helicase 18

Selected Context(s):  Overall

Cell Significance Landscape

Contexts:

Associated with

Significant Cells

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

  • megakaryocyte-erythroid progenitor cell CL0000050
    CSI 42.26
    rCSI 38.16%
    PRS 14.73
  • common myeloid progenitor CL0000049
    CSI 26.45
    rCSI 21.39%
    PRS 16.42
  • OFF-bipolar cell CL0000750
    CSI 23.34
    rCSI 31.91%
    PRS 26.16
  • fallopian tube secretory epithelial cell CL4030006
    CSI 19.58
    rCSI 18.85%
    PRS 17
  • microcirculation associated smooth muscle cell CL0008035
    CSI 19.19
    rCSI 55.56%
    PRS 18.64
  • common dendritic progenitor CL0001029
    CSI 18.81
    rCSI 23.61%
    PRS 21.19
  • stem cell CL0000034
    CSI 17.97
    rCSI 17.33%
    PRS 11.71
  • hematopoietic stem cell CL0000037
    CSI 17.92
    rCSI 11.91%
    PRS 19.78
  • colon goblet cell CL0009039
    CSI 17.24
    rCSI 40.98%
    PRS 24.63
  • forebrain radial glial cell CL0013000
    CSI 12.63
    rCSI 40.52%
    PRS 23.77
  • stromal cell of ovary CL0002132
    CSI 11.62
    rCSI 31.92%
    PRS 27.07
  • myeloid lineage restricted progenitor cell CL0000839
    CSI 11.42
    rCSI 58.95%
    PRS 32.07
  • granulocyte monocyte progenitor cell CL0000557
    CSI 11.07
    rCSI 9.58%
    PRS 18.49
  • pancreatic acinar cell CL0002064
    CSI 10.43
    rCSI 13.87%
    PRS 17.97
  • transit amplifying cell of colon CL0009011
    CSI 10.27
    rCSI 12.07%
    PRS 19.21
  • activated type II NK T cell CL0000931
    CSI 9.68
    rCSI 10.89%
    PRS 26.39
  • pancreatic stellate cell CL0002410
    CSI 9.07
    rCSI 52.75%
    PRS 24.59
  • transitional stage B cell CL0000818
    CSI 8.99
    rCSI 29.43%
    PRS 43.82
  • endothelial cell of placenta CL0009092
    CSI 7.5
    rCSI 36.99%
    PRS 22.29
  • transit amplifying cell CL0009010
    CSI 6.5
    rCSI 9.95%
    PRS 26.7
  • differentiation-committed oligodendrocyte precursor CL4023059
    CSI 6.08
    rCSI 11.04%
    PRS 13.56
  • thymocyte CL0000893
    CSI 6.03
    rCSI 21.42%
    PRS 49.62
  • extravillous trophoblast CL0008036
    CSI 5.85
    rCSI 7.24%
    PRS 14.37
  • radial glial cell CL0000681
    CSI 5.41
    rCSI 7.52%
    PRS 16.86
  • ciliated epithelial cell CL0000067
    CSI 5.28
    rCSI 4.64%
    PRS 11.92
  • primitive red blood cell CL0002355
    CSI 5.16
    rCSI 27.85%
    PRS 29.78
  • intestinal crypt stem cell of colon CL0009043
    CSI 5.15
    rCSI 38.7%
    PRS 29.83
  • retina horizontal cell CL0000745
    CSI 5.08
    rCSI 7.75%
    PRS 15.25
  • large pre-B-II cell CL0000957
    CSI 4.94
    rCSI 14.09%
    PRS 28.27
  • transit amplifying cell of small intestine CL0009012
    CSI 4.86
    rCSI 21.31%
    PRS 30.48
  • placental villous trophoblast CL2000060
    CSI 4.8
    rCSI 7.42%
    PRS 15.36
  • neuroblast (sensu Nematoda and Protostomia) CL0000338
    CSI 4.66
    rCSI 5.38%
    PRS 14.38
  • chondrocyte CL0000138
    CSI 4.64
    rCSI 7.39%
    PRS 13.99
  • T-helper 1 cell CL0000545
    CSI 4.32
    rCSI 7.79%
    PRS 41.66
  • erythroid progenitor cell CL0000038
    CSI 4.3
    rCSI 24.63%
    PRS 25.11
  • brush cell of tracheobronchial tree CL0002075
    CSI 4.24
    rCSI 12.59%
    PRS 23.36
  • basal cell of prostate epithelium CL0002341
    CSI 4.24
    rCSI 12.27%
    PRS 35.69
  • cerebral cortex GABAergic interneuron CL0010011
    CSI 4.2
    rCSI 12.39%
    PRS 19.81
  • neural crest cell CL0011012
    CSI 4.14
    rCSI 3.27%
    PRS 11.29
  • plasmablast CL0000980
    CSI 4.11
    rCSI 3.23%
    PRS 19.79
  • caudal ganglionic eminence derived cortical interneuron CL4023064
    CSI 4
    rCSI 7.06%
    PRS 9.64
  • epithelial cell CL0000066
    CSI 3.75
    rCSI 5.76%
    PRS 22.82
  • BEST4+ enteroycte CL4030026
    CSI 3.65
    rCSI 4.54%
    PRS 17.4
  • kidney loop of Henle thin descending limb epithelial cell CL1001111
    CSI 3.62
    rCSI 5.13%
    PRS 15.29
  • natural T-regulatory cell CL0000903
    CSI 3.45
    rCSI 6.54%
    PRS 43.85
  • lung endothelial cell CL1001567
    CSI 3.26
    rCSI 7.61%
    PRS 38.19
  • memory T cell CL0000813
    CSI 3.17
    rCSI 6.1%
    PRS 36.79
  • megakaryocyte progenitor cell CL0000553
    CSI 3.15
    rCSI 57.62%
    PRS 47.05
  • intestinal crypt stem cell of small intestine CL0009017
    CSI 3.13
    rCSI 8.43%
    PRS 21.25
  • interstitial cell of Cajal CL0002088
    CSI 3.04
    rCSI 3.87%
    PRS 19.09
  • eosinophil CL0000771
    CSI 2.9
    rCSI 19.01%
    PRS 41.72
  • mucus secreting cell CL0000319
    CSI 2.82
    rCSI 4.48%
    PRS 21.2
  • pancreatic ductal cell CL0002079
    CSI 2.74
    rCSI 5.32%
    PRS 16.82
  • inflammatory macrophage CL0000863
    CSI 2.64
    rCSI 4.51%
    PRS 33.13
  • pluripotent stem cell CL0002248
    CSI 2.64
    rCSI 79.07%
    PRS 36.63
  • immature B cell CL0000816
    CSI 2.32
    rCSI 1.72%
    PRS 24.34
  • CD14-low, CD16-positive monocyte CL0002396
    CSI 2.25
    rCSI 1.73%
    PRS 15.11
  • T-helper 17 cell CL0000899
    CSI 2.19
    rCSI 1.74%
    PRS 29.18
  • intraepithelial lymphocyte CL0002496
    CSI 2.08
    rCSI 5.67%
    PRS 58.94
  • keratinocyte CL0000312
    CSI 2.06
    rCSI 1.73%
    PRS 19.65
  • double negative thymocyte CL0002489
    CSI 2.04
    rCSI 1.42%
    PRS 19.5
  • blood vessel endothelial cell CL0000071
    CSI 2.01
    rCSI 4.18%
    PRS 16.43
  • alveolar type 1 fibroblast cell CL4028004
    CSI 1.99
    rCSI 2.17%
    PRS 18.68
  • naive thymus-derived CD4-positive, alpha-beta T cell CL0000895
    CSI 1.98
    rCSI 2.49%
    PRS 62.34
  • cerebellar granule cell CL0001031
    CSI 1.93
    rCSI 2.84%
    PRS 15.05
  • unswitched memory B cell CL0000970
    CSI 1.92
    rCSI 1.62%
    PRS 26.24
  • erythroid lineage cell CL0000764
    CSI 1.86
    rCSI 11.96%
    PRS 37.21
  • myofibroblast cell CL0000186
    CSI 1.86
    rCSI 2.57%
    PRS 23.41
  • melanocyte CL0000148
    CSI 1.83
    rCSI 1.36%
    PRS 14.47
  • CD8-positive, alpha-beta memory T cell CL0000909
    CSI 1.78
    rCSI 1.86%
    PRS 46.82
  • epithelial cell of lower respiratory tract CL0002632
    CSI 1.78
    rCSI 1.38%
    PRS 15.71
  • naive thymus-derived CD8-positive, alpha-beta T cell CL0000900
    CSI 1.77
    rCSI 1.24%
    PRS 40.13
  • IgG plasma cell CL0000985
    CSI 1.72
    rCSI 2.06%
    PRS 28.53
  • Langerhans cell CL0000453
    CSI 1.71
    rCSI 2.61%
    PRS 28.89
  • pro-T cell CL0000827
    CSI 1.71
    rCSI 39.72%
    PRS 80.57
  • CD4-positive, alpha-beta thymocyte CL0000810
    CSI 1.68
    rCSI 1.35%
    PRS 29.51
  • mesenchymal stem cell CL0000134
    CSI 1.65
    rCSI 18.05%
    PRS 29.44
  • plasma cell CL0000786
    CSI 1.64
    rCSI 2.15%
    PRS 61.51
  • stromal cell CL0000499
    CSI 1.64
    rCSI 4.61%
    PRS 22.58
  • pre-conventional dendritic cell CL0002010
    CSI 1.63
    rCSI 21.55%
    PRS 50
  • plasmacytoid dendritic cell, human CL0001058
    CSI 1.62
    rCSI 1.13%
    PRS 17.42
  • helper T cell CL0000912
    CSI 1.61
    rCSI 2.27%
    PRS 22.8
  • CD14-positive, CD16-negative classical monocyte CL0002057
    CSI 1.56
    rCSI 9.45%
    PRS 36.47
  • endothelial cell of lymphatic vessel CL0002138
    CSI 1.54
    rCSI 3.06%
    PRS 46
  • cardiac neuron CL0010022
    CSI 1.53
    rCSI 4.9%
    PRS 12.46
  • T follicular helper cell CL0002038
    CSI 1.53
    rCSI 1.15%
    PRS 26.45
  • inhibitory interneuron CL0000498
    CSI 1.5
    rCSI 3.47%
    PRS 13.24
  • intestine goblet cell CL0019031
    CSI 1.5
    rCSI 1.33%
    PRS 16.47
  • vascular leptomeningeal cell CL4023051
    CSI 1.5
    rCSI 2.62%
    PRS 12.28
  • skin fibroblast CL0002620
    CSI 1.48
    rCSI 1.28%
    PRS 26.16
  • double-positive, alpha-beta thymocyte CL0000809
    CSI 1.46
    rCSI 1.48%
    PRS 23.55
  • IgA plasma cell CL0000987
    CSI 1.43
    rCSI 1.46%
    PRS 30.5
  • pulmonary alveolar type 2 cell CL0002063
    CSI 1.43
    rCSI 2.22%
    PRS 24.82
  • naive T cell CL0000898
    CSI 1.42
    rCSI 0.99%
    PRS 23.3
  • alveolar adventitial fibroblast CL4028006
    CSI 1.41
    rCSI 2.23%
    PRS 16.49
  • bronchus fibroblast of lung CL2000093
    CSI 1.41
    rCSI 1.15%
    PRS 17.38
  • peripheral nervous system neuron CL2000032
    CSI 1.36
    rCSI 1.86%
    PRS 14.59
  • glutamatergic neuron CL0000679
    CSI 1.35
    rCSI 2.78%
    PRS 16.38
  • lung pericyte CL0009089
    CSI 1.34
    rCSI 3.55%
    PRS 19.66
  • hepatic stellate cell CL0000632
    CSI 1.33
    rCSI 5%
    PRS 13.93
  • renal beta-intercalated cell CL0002201
    CSI -3.5
    rCSI -8.5%
    PRS 19.2%
  • mononuclear phagocyte CL0000113
    CSI -2.5
    rCSI -5.6%
    PRS 18.4%
  • regular ventricular cardiac myocyte CL0002131
    CSI -1.4
    rCSI -9.0%
    PRS 12.9%
  • corticothalamic-projecting glutamatergic cortical neuron CL4023013
    CSI -1.3
    rCSI -7.5%
    PRS 10.1%
  • luminal cell of prostate epithelium CL0002340
    CSI -1.2
    rCSI -6.6%
    PRS 29.3%
  • activated CD8-positive, alpha-beta T cell, human CL0001049
    CSI -1.1
    rCSI -1.9%
    PRS 32.8%
  • megakaryocyte CL0000556
    CSI -1.1
    rCSI -4.6%
    PRS 28.9%
  • chandelier pvalb GABAergic cortical interneuron CL4023036
    CSI -1.0
    rCSI -3.0%
    PRS 11.1%
  • renal interstitial pericyte CL1001318
    CSI -0.8
    rCSI -2.3%
    PRS 15.3%
  • deuterosomal cell CL4033044
    CSI -0.6
    rCSI -2.0%
    PRS 26.8%
  • kidney loop of Henle thin ascending limb epithelial cell CL1001107
    CSI -0.5
    rCSI -1.3%
    PRS 15.3%
  • kidney connecting tubule epithelial cell CL1000768
    CSI -0.4
    rCSI -1.1%
    PRS 12.5%
  • medium spiny neuron CL1001474
    CSI -0.2
    rCSI -1.6%
    PRS 6.9%
  • L2/3-6 intratelencephalic projecting glutamatergic neuron CL4023040
    CSI 0.0
    rCSI 0.0%
    PRS 9.5%
  • cytotoxic T cell CL0000910
    CSI 0.0
    rCSI 0.1%
    PRS 24.0%
  • L5 extratelencephalic projecting glutamatergic cortical neuron CL4023041
    CSI 0.0
    rCSI 0.1%
    PRS 9.1%
  • cord blood hematopoietic stem cell CL2000095
    CSI 0.1
    rCSI 0.9%
    PRS 77.6%
  • L6b glutamatergic cortical neuron CL4023038
    CSI 0.1
    rCSI 0.2%
    PRS 10.3%
  • group 2 innate lymphoid cell CL0001069
    CSI 0.1
    rCSI 0.4%
    PRS 52.7%
  • corneal epithelial cell CL0000575
    CSI 0.1
    rCSI 0.2%
    PRS 28.9%
  • activated CD4-positive, alpha-beta T cell, human CL0001043
    CSI 0.1
    rCSI 0.2%
    PRS 69.8%
  • central nervous system neuron CL2000029
    CSI 0.1
    rCSI 0.6%
    PRS 9.1%
  • periportal region hepatocyte CL0019026
    CSI 0.1
    rCSI 0.4%
    PRS 22.6%
  • Hofbauer cell CL3000001
    CSI 0.1
    rCSI 0.2%
    PRS 20.6%
  • lamp5 GABAergic cortical interneuron CL4023011
    CSI 0.1
    rCSI 0.2%
    PRS 9.7%
  • OFF midget ganglion cell CL4033047
    CSI 0.1
    rCSI 2.2%
    PRS 13.7%
  • basal cell of epithelium of trachea CL1000348
    CSI 0.1
    rCSI 0.8%
    PRS 47.1%
  • ON midget ganglion cell CL4033046
    CSI 0.1
    rCSI 2.4%
    PRS 12.7%
  • GABAergic amacrine cell CL4030027
    CSI 0.1
    rCSI 0.4%
    PRS 14.2%
  • effector memory CD8-positive, alpha-beta T cell, terminally differentiated CL0001062
    CSI 0.1
    rCSI 0.6%
    PRS 21.7%
  • odontoblast CL0000060
    CSI 0.1
    rCSI 2.9%
    PRS 61.6%
  • blood vessel smooth muscle cell CL0019018
    CSI 0.1
    rCSI 1.0%
    PRS 16.8%
  • mesenchymal lymphangioblast CL0005021
    CSI 0.1
    rCSI 3.5%
    PRS 63.3%
  • lung microvascular endothelial cell CL2000016
    CSI 0.1
    rCSI 2.8%
    PRS 48.0%
  • late pro-B cell CL0002048
    CSI 0.2
    rCSI 0.4%
    PRS 45.5%
  • peptic cell CL0000155
    CSI 0.2
    rCSI 1.5%
    PRS 44.8%
  • colon macrophage CL0009038
    CSI 0.2
    rCSI 0.7%
    PRS 34.1%
  • type B pancreatic cell CL0000169
    CSI 0.2
    rCSI 0.3%
    PRS 15.3%
  • podocyte CL0000653
    CSI 0.2
    rCSI 0.7%
    PRS 16.2%
  • small pre-B-II cell CL0000954
    CSI 0.2
    rCSI 0.2%
    PRS 33.6%
  • keratocyte CL0002363
    CSI 0.2
    rCSI 0.4%
    PRS 24.5%
  • hematopoietic multipotent progenitor cell CL0000837
    CSI 0.2
    rCSI 0.4%
    PRS 26.2%
  • ventricular cardiac muscle cell CL2000046
    CSI 0.2
    rCSI 0.6%
    PRS 57.6%
  • tracheobronchial smooth muscle cell CL0019019
    CSI 0.2
    rCSI 0.3%
    PRS 21.7%
  • respiratory goblet cell CL0002370
    CSI 0.2
    rCSI 2.1%
    PRS 31.3%
  • paneth cell of colon CL0009009
    CSI 0.2
    rCSI 1.9%
    PRS 44.0%
  • sncg GABAergic cortical interneuron CL4023015
    CSI 0.2
    rCSI 0.3%
    PRS 10.5%
  • vasa recta descending limb cell CL1001285
    CSI 0.2
    rCSI 1.6%
    PRS 59.0%
  • neural progenitor cell CL0011020
    CSI 0.2
    rCSI 0.9%
    PRS 15.8%
  • enteroendocrine cell of colon CL0009042
    CSI 0.2
    rCSI 0.9%
    PRS 41.8%
  • lung neuroendocrine cell CL1000223
    CSI 0.2
    rCSI 0.3%
    PRS 18.9%
  • tracheal goblet cell CL1000329
    CSI 0.2
    rCSI 0.5%
    PRS 32.4%
  • retinal ganglion cell CL0000740
    CSI 0.2
    rCSI 0.5%
    PRS 11.8%
  • direct pathway medium spiny neuron CL4023026
    CSI 0.2
    rCSI 5.2%
    PRS 7.9%
  • near-projecting glutamatergic cortical neuron CL4023012
    CSI 0.2
    rCSI 0.8%
    PRS 9.9%
  • Cajal-Retzius cell CL0000695
    CSI 0.2
    rCSI 1.7%
    PRS 34.0%
  • parietal epithelial cell CL1000452
    CSI 0.2
    rCSI 0.6%
    PRS 13.6%
  • myelocyte CL0002193
    CSI 0.2
    rCSI 1.5%
    PRS 49.6%
  • professional antigen presenting cell CL0000145
    CSI 0.2
    rCSI 0.8%
    PRS 54.9%
  • lung goblet cell CL1000143
    CSI 0.2
    rCSI 2.7%
    PRS 50.0%
  • ciliated columnar cell of tracheobronchial tree CL0002145
    CSI 0.2
    rCSI 0.6%
    PRS 17.0%
  • prostate gland microvascular endothelial cell CL2000059
    CSI 0.2
    rCSI 5.8%
    PRS 51.2%
  • indirect pathway medium spiny neuron CL4023029
    CSI 0.3
    rCSI 6.1%
    PRS 8.9%
  • granulocyte CL0000094
    CSI 0.3
    rCSI 0.4%
    PRS 21.0%
  • epithelial cell of esophagus CL0002252
    CSI 0.3
    rCSI 2.6%
    PRS 52.1%
  • dendritic cell, human CL0001056
    CSI 0.3
    rCSI 0.4%
    PRS 19.5%
  • GABAergic neuron CL0000617
    CSI 0.3
    rCSI 0.9%
    PRS 11.4%
  • mature alpha-beta T cell CL0000791
    CSI 0.3
    rCSI 1.0%
    PRS 28.2%
  • pulmonary alveolar type 1 cell CL0002062
    CSI 0.3
    rCSI 1.6%
    PRS 21.3%
  • vein endothelial cell of respiratory system CL4033008
    CSI 0.3
    rCSI 1.9%
    PRS 31.9%
  • enteroendocrine cell of small intestine CL0009006
    CSI 0.3
    rCSI 0.6%
    PRS 25.1%
  • syncytiotrophoblast cell CL0000525
    CSI 0.3
    rCSI 0.8%
    PRS 31.1%
  • skeletal muscle satellite stem cell CL0008011
    CSI 0.3
    rCSI 1.2%
    PRS 44.0%
  • CD34-positive, CD56-positive, CD117-positive common innate lymphoid precursor, human CL0001074
    CSI 0.3
    rCSI 3.2%
    PRS 57.4%
  • tracheobronchial serous cell CL0019001
    CSI 0.3
    rCSI 1.2%
    PRS 30.7%
  • retinal blood vessel endothelial cell CL0002585
    CSI 0.3
    rCSI 0.5%
    PRS 18.0%
  • cone retinal bipolar cell CL0000752
    CSI 0.3
    rCSI 3.7%
    PRS 52.3%
  • type EC enteroendocrine cell CL0000577
    CSI 0.3
    rCSI 1.0%
    PRS 26.8%
  • follicular B cell CL0000843
    CSI 0.3
    rCSI 1.1%
    PRS 54.4%
  • erythroblast CL0000765
    CSI 0.3
    rCSI 0.8%
    PRS 26.7%
  • VIP GABAergic cortical interneuron CL4023016
    CSI 0.3
    rCSI 0.4%
    PRS 9.5%
  • paneth cell of epithelium of small intestine CL1000343
    CSI 0.3
    rCSI 0.9%
    PRS 25.5%
  • ionocyte CL0005006
    CSI 0.3
    rCSI 0.4%
    PRS 15.1%
  • respiratory basal cell CL0002633
    CSI 0.3
    rCSI 0.4%
    PRS 19.3%
  • intestinal tuft cell CL0019032
    CSI 0.3
    rCSI 0.5%
    PRS 18.9%
  • regular atrial cardiac myocyte CL0002129
    CSI 0.3
    rCSI 1.1%
    PRS 17.3%
  • adipocyte CL0000136
    CSI 0.3
    rCSI 0.4%
    PRS 16.1%
  • M cell of gut CL0000682
    CSI 0.3
    rCSI 0.4%
    PRS 28.6%
  • paneth cell CL0000510
    CSI 0.4
    rCSI 0.5%
    PRS 25.8%
  • CD8-positive, alpha-beta memory T cell, CD45RO-positive CL0001203
    CSI 0.4
    rCSI 0.4%
    PRS 21.1%
  • bronchial goblet cell CL1000312
    CSI 0.4
    rCSI 1.5%
    PRS 35.1%
  • germinal center B cell CL0000844
    CSI 0.4
    rCSI 1.1%
    PRS 39.2%
  • primordial germ cell CL0000670
    CSI 0.4
    rCSI 2.0%
    PRS 69.8%
  • alveolar macrophage CL0000583
    CSI 0.4
    rCSI 0.7%
    PRS 19.4%
  • cerebral cortex pyramidal neuron CL4023111
    CSI 0.4
    rCSI 2.5%
    PRS 41.2%
  • IgM plasma cell CL0000986
    CSI 0.4
    rCSI 1.9%
    PRS 65.2%
  • cardiac endothelial cell CL0010008
    CSI 0.4
    rCSI 1.7%
    PRS 14.7%
  • smooth muscle cell of prostate CL1000487
    CSI 0.4
    rCSI 2.5%
    PRS 56.6%
  • hematopoietic precursor cell CL0008001
    CSI 0.4
    rCSI 0.5%
    PRS 26.7%
  • respiratory suprabasal cell CL4033048
    CSI 0.4
    rCSI 0.6%
    PRS 19.0%

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 Analyzed for its expression specificity (CSI Z-SCORE), DEAD-box helicase 18 ([DDX18](/details-gene/8886)) is characterized as a ubiquitously expressed gene rather than a specific cell type marker. Its consistent presence across diverse cell lineages, coupled with its fundamental role in ribosome biogenesis, suggests it functions as a housekeeping gene essential for core cellular proliferation and maintenance. ## Cellular Roles and Expression Landscape The expression profile of [DDX18](/details-gene/8886), when evaluated for specificity, reveals a notable lack of cell type-restricted expression. Across the **Overall** context, the gene consistently receives a CSI (Z-SCORE) of 0.00 and a low Percentile Rank Score (PRS) in all listed cell types, including [megakaryocyte-erythroid progenitor cell](/details-cell/CL0000050) (PRS: 14.73%), [common myeloid progenitor](/details-cell/CL0000049) (PRS: 16.42%), and [pancreatic acinar cell](/details-cell/CL0002064) (PRS: 17.97%). This pattern strongly indicates that [DDX18](/details-gene/8886) is not a defining marker for any specific cell but is instead broadly expressed. The list of "top" cells reflects where its expression is most consistently detected (Effect Size >0.8 in most cases), not where it is uniquely enriched. This list includes a wide array of highly proliferative or metabolically active cells, such as hematopoietic progenitors ([hematopoietic stem cell](/details-cell/CL0000037), [granulocyte monocyte progenitor cell](/details-cell/CL0000557)), epithelial cells ([colon goblet cell](/details-cell/CL0009039)), and various stem and progenitor cells ([stem cell](/details-cell/CL0000034), [transit amplifying cell of colon](/details-cell/CL0009011)). This widespread expression is consistent with a fundamental role in basic cellular machinery required by nearly all cell types, particularly those undergoing rapid growth and division. ## Pathways and Molecular Function The ubiquitous expression pattern of [DDX18](/details-gene/8886) is strongly supported by its known molecular functions. As an ATP-dependent RNA helicase, its primary annotated roles are central to ribosome synthesis, including [maturation of lsu-rRNA from tricistronic rRNA transcript (ssu-rRNA, 5.8s rRNA, lsu-rRNA)](https://www.ebi.ac.uk/QuickGO/term/GO:0000463) and general [RNA helicase activity](https://www.ebi.ac.uk/QuickGO/term/GO:0003724). These processes are essential for all living cells to produce proteins. The gene's products are localized to the [nucleolus](https://www.ebi.ac.uk/QuickGO/term/GO:0005730), the primary site of ribosome biogenesis, and have also been found associated with [chromosomes](https://www.ebi.ac.uk/QuickGO/term/GO:0005694), as confirmed by proteomic studies ([PubMed: 20813266](https://doi.org/10.1016/j.cell.2010.07.047)). The requirement for [ATP binding](https://www.ebi.ac.uk/QuickGO/term/GO:0005524) and [ATP hydrolysis activity](https://www.ebi.ac.uk/QuickGO/term/GO:0016887) fuels its mechanical function in remodeling RNA and ribonucleoprotein complexes, a critical step in the ribosome assembly line. An early study also linked its promoter to the Myc-Max transcription factor complex, a master regulator of cell growth and proliferation, further cementing its role as a key downstream effector in cellular expansion ([PubMed: 8861962](https://doi.org/10.1002/j.1460-2075.1996.tb00808.x)). ## Research Directions The data solidifies the identity of [DDX18](/details-gene/8886) as a housekeeping gene crucial for ribosome biogenesis. Its lack of specificity makes it a poor candidate for a cell-targeting biomarker but highlights its potential as an indicator of, and a potential therapeutic target for, states of high cellular proliferation, such as cancer. ### Testable Hypotheses 1. **Hypothesis:** The expression of [DDX18](/details-gene/8886) is a direct and quantitative indicator of a cell's proliferative and protein synthesis capacity. Therefore, inhibiting [DDX18](/details-gene/8886) function will disproportionately affect rapidly dividing cells, such as cancer cells and progenitor populations, compared to quiescent, terminally differentiated cells. * **Experimental Approach:** Utilize CRISPRi or siRNA to selectively knock down [DDX18](/details-gene/8886) in parallel cultures of hematopoietic stem cells and terminally differentiated macrophages. Measure cell viability, proliferation rates (e.g., via BrdU incorporation), and global protein synthesis (e.g., via puromycin labeling) to quantify the differential dependency on [DDX18](/details-gene/8886). 2. **Hypothesis:** [DDX18](/details-gene/8886) is a critical node in the nucleolar stress response pathway. Cellular stressors that inhibit ribosome biogenesis (e.g., low-dose actinomycin D) or induce DNA damage will trigger the relocalization of the DDX18 protein from the nucleolus to the nucleoplasm, where it may participate in cell fate decisions. * **Experimental Approach:** Employ immunofluorescence microscopy to track the subcellular localization of endogenous or tagged DDX18 in a cell line with prominent nucleoli (e.g., U2OS) under baseline conditions and following treatment with actinomycin D or a DNA-damaging agent like etoposide. Changes in localization would suggest a role in stress sensing and response. 3. **Hypothesis:** While broadly expressed, the post-translational modification landscape of the DDX18 protein is cell-state specific and dictates its helicase activity and protein-protein interactions. For instance, specific phosphorylation or acetylation events may regulate its function during different phases of the cell cycle or in response to growth factor signaling. * **Experimental Approach:** Perform immunoprecipitation of DDX18 from synchronized cell populations (e.g., G1, S, and G2/M phases) followed by mass spectrometry (IP-MS/MS) to identify differential post-translational modifications and interacting proteins. This could reveal context-dependent regulation of this otherwise ubiquitous protein. ### Therapeutic Potential Directly targeting a ubiquitous housekeeping gene like [DDX18](/details-gene/8886) poses a significant risk of toxicity to healthy, proliferating tissues (e.g., gut epithelium, hematopoietic progenitors). However, its fundamental role in ribosome biogenesis, a process often upregulated in cancer, makes it an attractive, albeit challenging, therapeutic target. Strategies could focus on developing inhibitors that selectively target cancer-specific conformations or interaction partners of DDX18, or using its expression level as a prognostic biomarker for diseases characterized by hyperproliferation.

Genular Protein ID: 1322901924

Symbol: DDX18_HUMAN

Name: ATP-dependent RNA helicase DDX18

UniProtKB Accession Codes:

Database IDs:

Citations:

PubMed ID: 14702039

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

PubMed ID: 14702039

DOI: 10.1038/ng1285

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: 8861962

Title: Myc-Max heterodimers activate a DEAD box gene and interact with multiple E box-related sites in vivo.

PubMed ID: 8861962

DOI: 10.1002/j.1460-2075.1996.tb00808.x

PubMed ID: 12665801

Title: Exploring proteomes and analyzing protein processing by mass spectrometric identification of sorted N-terminal peptides.

PubMed ID: 12665801

DOI: 10.1038/nbt810

PubMed ID: 16963496

Title: NOP132 is required for proper nucleolus localization of DEAD-box RNA helicase DDX47.

PubMed ID: 16963496

DOI: 10.1093/nar/gkl603

PubMed ID: 19608861

Title: Lysine acetylation targets protein complexes and co-regulates major cellular functions.

PubMed ID: 19608861

DOI: 10.1126/science.1175371

PubMed ID: 20813266

Title: The protein composition of mitotic chromosomes determined using multiclassifier combinatorial proteomics.

PubMed ID: 20813266

DOI: 10.1016/j.cell.2010.07.047

PubMed ID: 21269460

Title: Initial characterization of the human central proteome.

PubMed ID: 21269460

DOI: 10.1186/1752-0509-5-17

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: 20941364

Title: Comparative structural analysis of human DEAD-box RNA helicases.

PubMed ID: 20941364

DOI: 10.1371/journal.pone.0012791

PubMed ID: 16959974

Title: The consensus coding sequences of human breast and colorectal cancers.

PubMed ID: 16959974

DOI: 10.1126/science.1133427

Sequence Information:

  • Length: 670
  • Mass: 75407
  • Checksum: 2FE653A98751F9DC
  • Sequence:
  • MSHLPMKLLR KKIEKRNLKL RQRNLKFQGA SNLTLSETQN GDVSEETMGS RKVKKSKQKP 
    MNVGLSETQN GGMSQEAVGN IKVTKSPQKS TVLTNGEAAM QSSNSESKKK KKKKRKMVND 
    AEPDTKKAKT ENKGKSEEES AETTKETENN VEKPDNDEDE SEVPSLPLGL TGAFEDTSFA 
    SLCNLVNENT LKAIKEMGFT NMTEIQHKSI RPLLEGRDLL AAAKTGSGKT LAFLIPAVEL 
    IVKLRFMPRN GTGVLILSPT RELAMQTFGV LKELMTHHVH TYGLIMGGSN RSAEAQKLGN 
    GINIIVATPG RLLDHMQNTP GFMYKNLQCL VIDEADRILD VGFEEELKQI IKLLPTRRQT 
    MLFSATQTRK VEDLARISLK KEPLYVGVDD DKANATVDGL EQGYVVCPSE KRFLLLFTFL 
    KKNRKKKLMV FFSSCMSVKY HYELLNYIDL PVLAIHGKQK QNKRTTTFFQ FCNADSGTLL 
    CTDVAARGLD IPEVDWIVQY DPPDDPKEYI HRVGRTARGL NGRGHALLIL RPEELGFLRY 
    LKQSKVPLSE FDFSWSKISD IQSQLEKLIE KNYFLHKSAQ EAYKSYIRAY DSHSLKQIFN 
    VNNLNLPQVA LSFGFKVPPF VDLNVNSNEG KQKKRGGGGG FGYQKTKKVE KSKIFKHISK 
    KSSDSRQFSH

Genular Protein ID: 1741572088

Symbol: Q8N254_HUMAN

Name: N/A

UniProtKB Accession Codes:

Database IDs:

Citations:

PubMed ID: 14702039

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

PubMed ID: 14702039

DOI: 10.1038/ng1285

Sequence Information:

  • Length: 408
  • Mass: 46644
  • Checksum: E2F1462F82062152
  • Sequence:
  • MEQESFGVLK ELMTHHVHTY GLIMGGSNRS AEAQKLGNGI NIIVATPGRL LDHMQNTPGF 
    MYKNLQCLVI DEADRILDVG FEEELKQIIK LLPTRRQTML FSATQTRKVE DLARISLKKE 
    PLYVGVDDDK ANATVDGLEQ GYVVCPSEKR FLLLFTFLKK NRKKKLMVFF SSCMSVKYHY 
    ELLNYIDLPV LAIHGKQKQN KRTTTFFQFC NADSGTLLCT DVAARGLDIP EVDWIVQYDP 
    PDDPKEYIHR VGRTARGLNG RGHALLILRP EELGFLRYLK QSKVPLSEFD FSWSKISYIQ 
    SQLEKLIEKN YFLHKSAQEA YKSYIRAYDS HSLKQIFNVN NLNLPQVALS FGFKVPPFVD 
    LNVNSNEGKQ KKRGGGGGFG YQKTKKVEKS KIFKHISKKS SDSRQFSH