Details for: LMBRD1

Gene ID: 55788

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: LMBRD1

Ensembl ID: ENSG00000168216

Description: LMBR1 domain containing 1

Cell Significance Landscape

Associated with

Significant Cells

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

  • VIP GABAergic cortical interneuron CL4023016
    CSI 43.1
    rCSI 51.49%
    PRS 12.94
  • sst GABAergic cortical interneuron CL4023017
    CSI 41.37
    rCSI 53.34%
    PRS 13.7
  • lamp5 GABAergic cortical interneuron CL4023011
    CSI 36.39
    rCSI 61.08%
    PRS 13.12
  • sncg GABAergic cortical interneuron CL4023015
    CSI 32.12
    rCSI 51.66%
    PRS 14.31
  • L2/3-6 intratelencephalic projecting glutamatergic neuron CL4023040
    CSI 31.26
    rCSI 75.98%
    PRS 12.83
  • pvalb GABAergic cortical interneuron CL4023018
    CSI 26.27
    rCSI 32.68%
    PRS 12.28
  • L6b glutamatergic cortical neuron CL4023038
    CSI 26.12
    rCSI 81.64%
    PRS 13.96
  • chandelier pvalb GABAergic cortical interneuron CL4023036
    CSI 24.09
    rCSI 75.33%
    PRS 15.04
  • caudal ganglionic eminence derived cortical interneuron CL4023064
    CSI 23.8
    rCSI 42.04%
    PRS 13
  • L5 extratelencephalic projecting glutamatergic cortical neuron CL4023041
    CSI 20.26
    rCSI 72.91%
    PRS 12.33
  • GABAergic amacrine cell CL4030027
    CSI 18.72
    rCSI 64.13%
    PRS 19.44
  • near-projecting glutamatergic cortical neuron CL4023012
    CSI 18.32
    rCSI 69.24%
    PRS 13.56
  • naive T cell CL0000898
    CSI 15.75
    rCSI 10.96%
    PRS 31.3
  • neuron CL0000540
    CSI 13.37
    rCSI 35.62%
    PRS 19.53
  • hepatocyte CL0000182
    CSI 12.9
    rCSI 23.09%
    PRS 20.52
  • corticothalamic-projecting glutamatergic cortical neuron CL4023013
    CSI 12.03
    rCSI 70.83%
    PRS 13.74
  • fallopian tube secretory epithelial cell CL4030006
    CSI 11.06
    rCSI 10.64%
    PRS 22.96
  • CD4-positive, alpha-beta memory T cell CL0000897
    CSI 10.41
    rCSI 7.47%
    PRS 30.64
  • pancreatic ductal cell CL0002079
    CSI 10.37
    rCSI 20.17%
    PRS 22.76
  • central nervous system neuron CL2000029
    CSI 9.86
    rCSI 72.44%
    PRS 13.46
  • pancreatic A cell CL0000171
    CSI 9.47
    rCSI 9.92%
    PRS 23.53
  • kidney loop of Henle thin ascending limb epithelial cell CL1001107
    CSI 8.25
    rCSI 21.34%
    PRS 20.61
  • mature B cell CL0000785
    CSI 8.14
    rCSI 7.08%
    PRS 27.89
  • retinal ganglion cell CL0000740
    CSI 8.12
    rCSI 17.95%
    PRS 15.78
  • podocyte CL0000653
    CSI 8.08
    rCSI 35.91%
    PRS 21.56
  • helper T cell CL0000912
    CSI 7.55
    rCSI 10.68%
    PRS 30.81
  • BEST4+ enteroycte CL4030026
    CSI 7.19
    rCSI 8.94%
    PRS 23.62
  • CD4-positive helper T cell CL0000492
    CSI 6.96
    rCSI 5.27%
    PRS 30.41
  • myoepithelial cell CL0000185
    CSI 6.76
    rCSI 17.1%
    PRS 27.26
  • plasmablast CL0000980
    CSI 6.33
    rCSI 4.98%
    PRS 26.83
  • invaginating midget bipolar cell CL4033034
    CSI 6.1
    rCSI 36.04%
    PRS 24.23
  • diffuse bipolar 3a cell CL4033029
    CSI 5.86
    rCSI 39.88%
    PRS 23.6
  • CD1c-positive myeloid dendritic cell CL0002399
    CSI 5.72
    rCSI 6.91%
    PRS 26.74
  • T follicular helper cell CL0002038
    CSI 5.43
    rCSI 4.06%
    PRS 34.85
  • GABAergic interneuron CL0011005
    CSI 5.23
    rCSI 82.46%
    PRS 21.3
  • pulmonary artery endothelial cell CL1001568
    CSI 5.23
    rCSI 7.11%
    PRS 33.42
  • intestinal crypt stem cell of small intestine CL0009017
    CSI 5.17
    rCSI 13.93%
    PRS 28.74
  • fraction A pre-pro B cell CL0002045
    CSI 5.16
    rCSI 5.91%
    PRS 43.96
  • pro-B cell CL0000826
    CSI 5.12
    rCSI 4.24%
    PRS 22.52
  • naive B cell CL0000788
    CSI 5.1
    rCSI 4.37%
    PRS 35.78
  • non-classical monocyte CL0000875
    CSI 5.08
    rCSI 8.15%
    PRS 56.36
  • CD14-positive monocyte CL0001054
    CSI 5.07
    rCSI 6.32%
    PRS 31.17
  • epithelial cell of lung CL0000082
    CSI 4.93
    rCSI 4.08%
    PRS 21.05
  • myofibroblast cell CL0000186
    CSI 4.92
    rCSI 6.81%
    PRS 30.79
  • mature alpha-beta T cell CL0000791
    CSI 4.88
    rCSI 17.67%
    PRS 37.99
  • lung pericyte CL0009089
    CSI 4.8
    rCSI 12.66%
    PRS 26.45
  • elicited macrophage CL0000861
    CSI 4.78
    rCSI 4.39%
    PRS 26.09
  • tuft cell of colon CL0009041
    CSI 4.69
    rCSI 10.93%
    PRS 42.81
  • CD14-low, CD16-positive monocyte CL0002396
    CSI 4.55
    rCSI 3.51%
    PRS 20.64
  • pulmonary capillary endothelial cell CL4028001
    CSI 4.49
    rCSI 8.56%
    PRS 34.67
  • intestine goblet cell CL0019031
    CSI 4.43
    rCSI 3.93%
    PRS 22.34
  • adipocyte CL0000136
    CSI 4.43
    rCSI 5.69%
    PRS 21.48
  • enteroendocrine cell CL0000164
    CSI 4.32
    rCSI 5.9%
    PRS 24.67
  • basophil CL0000767
    CSI 4.31
    rCSI 9.11%
    PRS 43.65
  • glioblast CL0000030
    CSI 4.21
    rCSI 6.71%
    PRS 18.85
  • memory B cell CL0000787
    CSI 4.02
    rCSI 3.97%
    PRS 67.65
  • pancreatic D cell CL0000173
    CSI 4.01
    rCSI 3.95%
    PRS 23.84
  • B cell CL0000236
    CSI 4
    rCSI 5.36%
    PRS 65.65
  • naive thymus-derived CD8-positive, alpha-beta T cell CL0000900
    CSI 4
    rCSI 2.81%
    PRS 50
  • epithelial cell of proximal tubule CL0002306
    CSI 3.98
    rCSI 9.73%
    PRS 21.69
  • interstitial cell of Cajal CL0002088
    CSI 3.91
    rCSI 4.97%
    PRS 25.61
  • early lymphoid progenitor CL0000936
    CSI 3.9
    rCSI 3.43%
    PRS 25.56
  • CD14-positive, CD16-positive monocyte CL0002397
    CSI 3.83
    rCSI 5.02%
    PRS 31.58
  • alpha-beta T cell CL0000789
    CSI 3.82
    rCSI 4.47%
    PRS 30.75
  • L5/6 near-projecting glutamatergic neuron CL4030067
    CSI 3.81
    rCSI 12.51%
    PRS 14.82
  • platelet CL0000233
    CSI 3.78
    rCSI 15.68%
    PRS 38.61
  • ON parasol ganglion cell CL4033052
    CSI 3.73
    rCSI 52.97%
    PRS 17.37
  • vascular leptomeningeal cell CL4023051
    CSI 3.71
    rCSI 6.51%
    PRS 16.92
  • radial glial cell CL0000681
    CSI 3.71
    rCSI 5.16%
    PRS 22.42
  • secretory cell CL0000151
    CSI 3.71
    rCSI 3.87%
    PRS 22.75
  • nasal mucosa goblet cell CL0002480
    CSI 3.69
    rCSI 4.28%
    PRS 31.85
  • erythroblast CL0000765
    CSI 3.64
    rCSI 9.67%
    PRS 34.35
  • effector CD8-positive, alpha-beta T cell CL0001050
    CSI 3.64
    rCSI 2.77%
    PRS 29.29
  • alveolar type 1 fibroblast cell CL4028004
    CSI 3.59
    rCSI 3.94%
    PRS 24.92
  • paneth cell of epithelium of small intestine CL1000343
    CSI 3.58
    rCSI 10.02%
    PRS 34.24
  • hematopoietic stem cell CL0000037
    CSI 3.44
    rCSI 2.29%
    PRS 26.48
  • ciliated epithelial cell CL0000067
    CSI 3.43
    rCSI 3.02%
    PRS 16.12
  • neural crest cell CL0011012
    CSI 3.4
    rCSI 2.69%
    PRS 15.21
  • direct pathway medium spiny neuron CL4023026
    CSI 3.37
    rCSI 80.67%
    PRS 11.63
  • ionocyte CL0005006
    CSI 3.37
    rCSI 3.61%
    PRS 20.41
  • endocardial cell CL0002350
    CSI 3.36
    rCSI 16.08%
    PRS 27.28
  • unswitched memory B cell CL0000970
    CSI 3.35
    rCSI 2.82%
    PRS 34.86
  • CD4-positive, alpha-beta thymocyte CL0000810
    CSI 3.34
    rCSI 2.67%
    PRS 39.2
  • mature T cell CL0002419
    CSI 3.28
    rCSI 2.55%
    PRS 32.59
  • indirect pathway medium spiny neuron CL4023029
    CSI 3.27
    rCSI 78.97%
    PRS 12.55
  • mononuclear phagocyte CL0000113
    CSI 3.25
    rCSI 7.15%
    PRS 25.39
  • pulmonary ionocyte CL0017000
    CSI 3.24
    rCSI 3.95%
    PRS 27.72
  • bronchus fibroblast of lung CL2000093
    CSI 3.19
    rCSI 2.59%
    PRS 23.31
  • Mueller cell CL0000636
    CSI 3.18
    rCSI 7.27%
    PRS 18.98
  • stratified epithelial cell CL0000079
    CSI 3.18
    rCSI 19.61%
    PRS 63.79
  • ON midget ganglion cell CL4033046
    CSI 3.16
    rCSI 64.32%
    PRS 18.22
  • neuroblast (sensu Vertebrata) CL0000031
    CSI 3.14
    rCSI 4.03%
    PRS 21.22
  • Kupffer cell CL0000091
    CSI 3.1
    rCSI 7.09%
    PRS 21.54
  • epithelial cell of lower respiratory tract CL0002632
    CSI 3.06
    rCSI 2.37%
    PRS 21.36
  • OFF midget ganglion cell CL4033047
    CSI 3.02
    rCSI 61.45%
    PRS 19.29
  • H2 horizontal cell CL0004218
    CSI 3.01
    rCSI 14.98%
    PRS 24.14
  • myeloid leukocyte CL0000766
    CSI 2.99
    rCSI 2.76%
    PRS 23.11
  • cerebral cortex endothelial cell CL1001602
    CSI 2.99
    rCSI 5.17%
    PRS 16.9
  • brush cell of tracheobronchial tree CL0002075
    CSI 2.97
    rCSI 8.81%
    PRS 30.99
  • inhibitory interneuron CL0000498
    CSI 2.94
    rCSI 6.79%
    PRS 17.87
  • CD8-positive, alpha-beta memory T cell, CD45RO-positive CL0001203
    CSI -0.4
    rCSI -0.5%
    PRS 27.0%
  • mesenchymal stem cell CL0000134
    CSI 0.1
    rCSI 0.7%
    PRS 38.6%
  • erythroid progenitor cell CL0000038
    CSI 0.2
    rCSI 0.9%
    PRS 32.7%
  • respiratory goblet cell CL0002370
    CSI 0.2
    rCSI 1.8%
    PRS 41.8%
  • cytotoxic T cell CL0000910
    CSI 0.2
    rCSI 1.2%
    PRS 32.5%
  • enterocyte of epithelium of small intestine CL1000334
    CSI 0.3
    rCSI 3.9%
    PRS 51.4%
  • peptic cell CL0000155
    CSI 0.3
    rCSI 3.1%
    PRS 54.5%
  • diffuse bipolar 2 cell CL4033028
    CSI 0.3
    rCSI 2.6%
    PRS 24.6%
  • kidney loop of Henle epithelial cell CL1000909
    CSI 0.4
    rCSI 7.4%
    PRS 81.4%
  • regular ventricular cardiac myocyte CL0002131
    CSI 0.4
    rCSI 2.3%
    PRS 17.3%
  • mesenchymal cell CL0008019
    CSI 0.4
    rCSI 1.0%
    PRS 22.1%
  • macroglial cell CL0000126
    CSI 0.4
    rCSI 1.1%
    PRS 28.5%
  • fibroblast of breast CL4006000
    CSI 0.4
    rCSI 1.8%
    PRS 51.5%
  • Langerhans cell CL0000453
    CSI 0.4
    rCSI 0.6%
    PRS 38.5%
  • megakaryocyte-erythroid progenitor cell CL0000050
    CSI 0.4
    rCSI 0.4%
    PRS 20.1%
  • luminal epithelial cell of mammary gland CL0002326
    CSI 0.4
    rCSI 0.8%
    PRS 33.7%
  • flat midget bipolar cell CL4033033
    CSI 0.5
    rCSI 3.5%
    PRS 23.8%
  • colon macrophage CL0009038
    CSI 0.5
    rCSI 2.3%
    PRS 45.0%
  • eye photoreceptor cell CL0000287
    CSI 0.5
    rCSI 5.6%
    PRS 50.4%
  • diffuse bipolar 1 cell CL4033027
    CSI 0.5
    rCSI 3.8%
    PRS 23.5%
  • diffuse bipolar 3b cell CL4033030
    CSI 0.6
    rCSI 3.7%
    PRS 24.1%
  • syncytiotrophoblast cell CL0000525
    CSI 0.6
    rCSI 1.6%
    PRS 40.1%
  • forebrain radial glial cell CL0013000
    CSI 0.6
    rCSI 1.9%
    PRS 30.9%
  • colon goblet cell CL0009039
    CSI 0.6
    rCSI 1.5%
    PRS 32.8%
  • pancreatic epsilon cell CL0005019
    CSI 0.6
    rCSI 2.8%
    PRS 47.0%
  • intestinal crypt stem cell of colon CL0009043
    CSI 0.6
    rCSI 4.7%
    PRS 40.1%
  • placental villous trophoblast CL2000060
    CSI 0.7
    rCSI 1.1%
    PRS 20.7%
  • kidney epithelial cell CL0002518
    CSI 0.7
    rCSI 1.4%
    PRS 46.7%
  • foveolar cell of stomach CL0002179
    CSI 0.7
    rCSI 1.6%
    PRS 35.0%
  • tracheal goblet cell CL1000329
    CSI 0.7
    rCSI 1.6%
    PRS 42.3%
  • ciliated columnar cell of tracheobronchial tree CL0002145
    CSI 0.8
    rCSI 1.8%
    PRS 22.8%
  • OFFx cell CL4033036
    CSI 0.8
    rCSI 3.7%
    PRS 24.5%
  • intestinal tuft cell CL0019032
    CSI 0.8
    rCSI 1.2%
    PRS 25.3%
  • common lymphoid progenitor CL0000051
    CSI 0.8
    rCSI 1.1%
    PRS 41.6%
  • stromal cell CL0000499
    CSI 0.8
    rCSI 2.3%
    PRS 29.1%
  • kidney connecting tubule epithelial cell CL1000768
    CSI 0.8
    rCSI 2.1%
    PRS 16.8%
  • cardiac neuron CL0010022
    CSI 0.8
    rCSI 2.7%
    PRS 18.1%
  • transit amplifying cell of small intestine CL0009012
    CSI 0.9
    rCSI 3.8%
    PRS 40.3%
  • regular atrial cardiac myocyte CL0002129
    CSI 0.9
    rCSI 2.8%
    PRS 23.1%
  • tracheobronchial smooth muscle cell CL0019019
    CSI 0.9
    rCSI 1.6%
    PRS 28.8%
  • transitional stage B cell CL0000818
    CSI 0.9
    rCSI 3.0%
    PRS 56.0%
  • L4 intratelencephalic projecting glutamatergic neuron CL4030063
    CSI 0.9
    rCSI 2.2%
    PRS 14.9%
  • serotonergic neuron CL0000850
    CSI 1.0
    rCSI 4.3%
    PRS 15.1%
  • type L enteroendocrine cell CL0002279
    CSI 1.0
    rCSI 1.8%
    PRS 42.5%
  • innate lymphoid cell CL0001065
    CSI 1.0
    rCSI 2.0%
    PRS 32.8%
  • glandular epithelial cell CL0000150
    CSI 1.0
    rCSI 2.6%
    PRS 42.7%
  • microcirculation associated smooth muscle cell CL0008035
    CSI 1.0
    rCSI 2.9%
    PRS 24.9%
  • intestinal epithelial cell CL0002563
    CSI 1.0
    rCSI 1.1%
    PRS 23.1%
  • renal interstitial pericyte CL1001318
    CSI 1.0
    rCSI 2.8%
    PRS 20.7%
  • keratocyte CL0002363
    CSI 1.0
    rCSI 2.5%
    PRS 32.4%
  • neuroendocrine cell CL0000165
    CSI 1.1
    rCSI 4.1%
    PRS 42.4%
  • activated CD8-positive, alpha-beta T cell, human CL0001049
    CSI 1.1
    rCSI 1.8%
    PRS 42.2%
  • squamous epithelial cell CL0000076
    CSI 1.1
    rCSI 2.6%
    PRS 27.4%
  • megakaryocyte CL0000556
    CSI 1.1
    rCSI 4.8%
    PRS 38.1%
  • L2/3 intratelencephalic projecting glutamatergic neuron CL4030059
    CSI 1.1
    rCSI 2.4%
    PRS 16.3%
  • lung macrophage CL1001603
    CSI 1.2
    rCSI 2.6%
    PRS 25.9%
  • lung secretory cell CL1000272
    CSI 1.2
    rCSI 2.9%
    PRS 20.5%
  • parietal epithelial cell CL1000452
    CSI 1.2
    rCSI 3.1%
    PRS 18.5%
  • amacrine cell CL0000561
    CSI 1.2
    rCSI 3.4%
    PRS 17.0%
  • respiratory suprabasal cell CL4033048
    CSI 1.2
    rCSI 1.5%
    PRS 25.7%
  • IgG plasma cell CL0000985
    CSI 1.2
    rCSI 1.4%
    PRS 38.4%
  • dopaminergic neuron CL0000700
    CSI 1.2
    rCSI 6.7%
    PRS 12.9%
  • effector memory CD4-positive, alpha-beta T cell CL0000905
    CSI 1.2
    rCSI 1.7%
    PRS 50.3%
  • large pre-B-II cell CL0000957
    CSI 1.2
    rCSI 3.5%
    PRS 36.8%
  • GABAergic neuron CL0000617
    CSI 1.2
    rCSI 4.1%
    PRS 15.9%
  • enterocyte of epithelium of large intestine CL0002071
    CSI 1.2
    rCSI 6.5%
    PRS 37.5%
  • renal principal cell CL0005009
    CSI 1.3
    rCSI 3.3%
    PRS 28.3%
  • acinar cell of salivary gland CL0002623
    CSI 1.3
    rCSI 29.6%
    PRS 40.9%
  • club cell CL0000158
    CSI 1.3
    rCSI 1.9%
    PRS 25.1%
  • duct epithelial cell CL0000068
    CSI 1.3
    rCSI 1.9%
    PRS 23.5%
  • alternatively activated macrophage CL0000890
    CSI 1.3
    rCSI 1.6%
    PRS 33.8%
  • colonocyte CL1000347
    CSI 1.3
    rCSI 1.8%
    PRS 29.7%
  • type B pancreatic cell CL0000169
    CSI 1.3
    rCSI 2.9%
    PRS 20.5%
  • common myeloid progenitor CL0000049
    CSI 1.3
    rCSI 1.0%
    PRS 22.3%
  • retinal rod cell CL0000604
    CSI 1.3
    rCSI 2.3%
    PRS 21.6%
  • small intestine goblet cell CL1000495
    CSI 1.3
    rCSI 2.9%
    PRS 29.6%
  • centrilobular region hepatocyte CL0019029
    CSI 1.3
    rCSI 3.5%
    PRS 33.5%
  • small pre-B-II cell CL0000954
    CSI 1.3
    rCSI 1.3%
    PRS 44.2%
  • respiratory basal cell CL0002633
    CSI 1.3
    rCSI 1.4%
    PRS 26.2%
  • cardiac endothelial cell CL0010008
    CSI 1.4
    rCSI 5.4%
    PRS 20.2%
  • acinar cell CL0000622
    CSI 1.4
    rCSI 2.0%
    PRS 29.0%
  • diffuse bipolar 4 cell CL4033031
    CSI 1.4
    rCSI 15.6%
    PRS 26.2%
  • extravillous trophoblast CL0008036
    CSI 1.4
    rCSI 1.7%
    PRS 19.4%
  • intermediate monocyte CL0002393
    CSI 1.4
    rCSI 2.1%
    PRS 22.6%
  • CD8-positive, CD28-negative, alpha-beta regulatory T cell CL0000920
    CSI 1.4
    rCSI 2.8%
    PRS 37.1%
  • T-helper 17 cell CL0000899
    CSI 1.4
    rCSI 1.1%
    PRS 39.4%
  • endothelial cell of pericentral hepatic sinusoid CL0019022
    CSI 1.4
    rCSI 4.3%
    PRS 32.9%
  • adventitial cell CL0002503
    CSI 1.4
    rCSI 3.3%
    PRS 33.3%
  • pancreatic acinar cell CL0002064
    CSI 1.4
    rCSI 1.9%
    PRS 24.3%
  • effector CD4-positive, alpha-beta T cell CL0001044
    CSI 1.4
    rCSI 4.1%
    PRS 33.3%
  • mucous neck cell CL0000651
    CSI 1.4
    rCSI 2.1%
    PRS 34.8%
  • glycinergic amacrine cell CL4030028
    CSI 1.5
    rCSI 3.8%
    PRS 22.5%
  • glutamatergic neuron CL0000679
    CSI 1.5
    rCSI 3.0%
    PRS 21.7%
  • enteric smooth muscle cell CL0002504
    CSI 1.5
    rCSI 2.1%
    PRS 24.9%
  • erythrocyte CL0000232
    CSI 1.5
    rCSI 3.4%
    PRS 29.2%
  • CD4-positive, alpha-beta cytotoxic T cell CL0000934
    CSI 1.5
    rCSI 2.0%
    PRS 42.6%
  • paneth cell CL0000510
    CSI 1.5
    rCSI 2.2%
    PRS 34.5%
  • kidney interstitial alternatively activated macrophage CL1000695
    CSI 1.5
    rCSI 3.9%
    PRS 20.6%
  • common dendritic progenitor CL0001029
    CSI 1.5
    rCSI 1.9%
    PRS 28.7%
  • mucus secreting cell CL0000319
    CSI 1.5
    rCSI 2.4%
    PRS 28.4%

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 [LMBRD1](/details-gene/55788) (LMBR1 domain containing 1) is a protein-coding gene located on chromosome 6q13 that encodes a crucial lysosomal membrane protein. Its primary and well-established function is in the intracellular transport of vitamin B12 (cobalamin). [LMBRD1](/details-gene/55788) acts as an escort protein, facilitating the translocation of the vitamin B12 transporter ABCD4 from the endoplasmic reticulum to the lysosome, a critical step for making dietary vitamin B12 available to the cell ([Link](https://doi.org/10.1038/srep30183)). Consistent with this vital metabolic role, genetic defects in [LMBRD1](/details-gene/55788) are the cause of the cblF inborn error of vitamin B12 metabolism, a severe autosomal recessive disorder ([OMIM: [277380](https://omim.org/entry/277380)]; [Link](https://doi.org/10.1038/ng.294)). Expression data highlights a significant presence of [LMBRD1](/details-gene/55788) across numerous subtypes of cortical [neurons](/details-cell/CL0000540), suggesting a particularly important role for vitamin B12 metabolism in the central nervous system. ## Cellular Roles and Expression Landscape **Overall**, the expression profile of [LMBRD1](/details-gene/55788) indicates a prominent role within the central nervous system. The gene shows its highest significance in a wide array of cortical [neurons](/details-cell/CL0000540), pointing to a fundamental function in neuronal homeostasis. It is a top marker in both inhibitory and excitatory lineages, including [VIP GABAergic cortical interneurons](/details-cell/CL4023016) (CSI: 43.10), [sst GABAergic cortical interneurons](/details-cell/CL4023017) (CSI: 41.37), and [L2/3-6 intratelencephalic projecting glutamatergic neurons](/details-cell/CL4023040) (CSI: 31.26). This broad and high expression across functionally distinct neuronal populations suggests that [LMBRD1](/details-gene/55788)-mediated cobalamin transport is a universal requirement for cortical neuron function. Beyond the nervous system, [LMBRD1](/details-gene/55788) also shows moderate significance in [hepatocytes](/details-cell/CL0000182) (CSI: 12.90), which is consistent with the liver's central role in systemic vitamin B12 metabolism and storage. Interestingly, the gene is expressed in [naive T cells](/details-cell/CL0000898) (CSI: 15.75) but is not significant in [CD8-positive, alpha-beta memory T cells, CD45RO-positive](/details-cell/CL0001203) (CSI: -0.38). This differential expression may suggest that its role or the cellular demand for cobalamin transport is dynamically regulated during T-cell differentiation and the establishment of immunological memory. ## Pathways and Molecular Function The molecular function of [LMBRD1](/details-gene/55788) is centrally positioned within vitamin and cofactor metabolism. Reactome pathway analysis confirms its involvement in [Cobalamin (cbl, vitamin b12) transport and metabolism](/details-pathway/R-HSA-196741) and highlights its clinical relevance in [Defects in cobalamin (b12) metabolism](/details-pathway/R-HSA-3296469). Mechanistically, [LMBRD1](/details-gene/55788) is not the transporter itself but is essential for the proper localization and function of the lysosomal cobalamin exporter, ABCD4. It binds to ABCD4 in the endoplasmic reticulum and chaperones it to the lysosomal membrane, a process required for the release of cobalamin from the lysosome into the cytoplasm ([Link](https://doi.org/10.1038/srep30183); [Link](https://doi.org/10.1074/jbc.m117.784819)). This trafficking role is supported by Gene Ontology annotations. Molecularly, [LMBRD1](/details-gene/55788) exhibits [Cobalamin binding](/details-pathway/GO:0031419) and [Protein transporter activity](/details-pathway/GO:0140318). Its localization to the [Lysosomal membrane](/details-pathway/GO:0005765) and [Endoplasmic reticulum membrane](/details-pathway/GO:0005789) is consistent with its function as an escort protein between these organelles. Furthermore, its involvement in processes like [Clathrin-dependent endocytosis](/details-pathway/GO:0072583) and its ability to bind components of the endocytic machinery, such as [Ap-2 adaptor complex binding](/details-pathway/GO:0035612), suggest a broader role in intracellular vesicle trafficking beyond its interaction with ABCD4. ## Research Directions The available data provides a strong foundation for exploring the nuanced roles of [LMBRD1](/details-gene/55788) beyond its established function in systemic cobalamin metabolism. **Proposed Hypotheses:** 1. The high and specific expression of [LMBRD1](/details-gene/55788) across numerous cortical [neuron](/details-cell/CL0000540) subtypes suggests that localized cobalamin metabolism is critical for specialized neuronal functions, such as neurotransmitter synthesis or myelin maintenance, and that subtle dysregulation of [LMBRD1](/details-gene/55788) could contribute to the pathology of neurodegenerative or psychiatric disorders not classically associated with vitamin B12 deficiency. 2. The differential expression between [naive T cells](/details-cell/CL0000898) and [memory T cells](/details-cell/CL0001203) indicates that [LMBRD1](/details-gene/55788) is transcriptionally downregulated during T-cell activation. This suggests that metabolic reprogramming during immune responses involves a shift in cobalamin dependency, which may impact epigenetic regulation (e.g., methylation reactions) and the cell's ability to proliferate and exert effector functions. **Experimental Approach:** To test the first hypothesis regarding the specific role of [LMBRD1](/details-gene/55788) in neuronal health, a conditional knockout (cKO) mouse model using a pan-neuronal Cre driver (e.g., *Syn1*-Cre) should be generated. These mice would be subjected to a battery of behavioral tests to assess cognitive, motor, and sensory functions. At the cellular level, primary cortical [neuron](/details-cell/CL0000540) cultures from cKO mice could be analyzed for defects in cobalamin uptake, mitochondrial respiration, and susceptibility to excitotoxicity or oxidative stress. Furthermore, targeted metabolomics and lipidomics could be performed on brain tissue to determine how [LMBRD1](/details-gene/55788) deletion impacts the metabolic landscape of the CNS. **Therapeutic Potential:** As [LMBRD1](/details-gene/55788) is essential for a fundamental metabolic pathway, it is not a suitable target for inhibition. Its clinical relevance lies in loss-of-function mutations that cause the cblF disorder. Therefore, therapeutic strategies should focus on restoring its function. This could potentially be achieved through AAV-mediated gene therapy aimed at delivering a functional copy of the [LMBRD1](/details-gene/55788) gene to key tissues like the liver and hematopoietic stem cells. For patients with specific missense mutations that cause protein misfolding or instability, the development of small-molecule chaperones to stabilize the mutant protein and restore its trafficking function could represent an alternative therapeutic avenue.

Genular Protein ID: 4187673724

Symbol: LMBD1_HUMAN

Name: HDAg-L-interacting protein NESI

UniProtKB Accession Codes:

Database IDs:

Citations:

PubMed ID: 15956556

Title: Novel nuclear export signal-interacting protein, NESI, critical for the assembly of hepatitis delta virus.

PubMed ID: 15956556

DOI: 10.1128/jvi.79.13.8113-8120.2005

PubMed ID: 11042152

Title: Cloning and functional analysis of cDNAs with open reading frames for 300 previously undefined genes expressed in CD34+ hematopoietic stem/progenitor cells.

PubMed ID: 11042152

DOI: 10.1101/gr.140200

PubMed ID: 14702039

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

PubMed ID: 14702039

DOI: 10.1038/ng1285

PubMed ID: 14574404

Title: The DNA sequence and analysis of human chromosome 6.

PubMed ID: 14574404

DOI: 10.1038/nature02055

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: 18691976

Title: Kinase-selective enrichment enables quantitative phosphoproteomics of the kinome across the cell cycle.

PubMed ID: 18691976

DOI: 10.1016/j.molcel.2008.07.007

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: 19136951

Title: Identification of a putative lysosomal cobalamin exporter altered in the cblF defect of vitamin B12 metabolism.

PubMed ID: 19136951

DOI: 10.1038/ng.294

PubMed ID: 20068231

Title: Quantitative phosphoproteomics reveals widespread full phosphorylation site occupancy during mitosis.

PubMed ID: 20068231

DOI: 10.1126/scisignal.2000475

PubMed ID: 25535791

Title: Purification and interaction analyses of two human lysosomal vitamin B12 transporters: LMBD1 and ABCD4.

PubMed ID: 25535791

DOI: 10.3109/09687688.2014.990998

PubMed ID: 27456980

Title: Translocation of the ABC transporter ABCD4 from the endoplasmic reticulum to lysosomes requires the escort protein LMBD1.

PubMed ID: 27456980

DOI: 10.1038/srep30183

PubMed ID: 28572511

Title: Clinical or ATPase domain mutations in ABCD4 disrupt the interaction between the vitamin B12-trafficking proteins ABCD4 and LMBD1.

PubMed ID: 28572511

DOI: 10.1074/jbc.m117.784819

PubMed ID: 33845046

Title: The lysosomal protein ABCD4 can transport vitamin B12 across liposomal membranes in vitro.

PubMed ID: 33845046

DOI: 10.1016/j.jbc.2021.100654

Sequence Information:

  • Length: 540
  • Mass: 61389
  • Checksum: CC7578B0F5FD7BA6
  • Sequence:
  • MATSGAASAE LVIGWCIFGL LLLAILAFCW IYVRKYQSRR ESEVVSTITA IFSLAIALIT 
    SALLPVDIFL VSYMKNQNGT FKDWANANVS RQIEDTVLYG YYTLYSVILF CVFFWIPFVY 
    FYYEEKDDDD TSKCTQIKTA LKYTLGFVVI CALLLLVGAF VPLNVPNNKN STEWEKVKSL 
    FEELGSSHGL AALSFSISSL TLIGMLAAIT YTAYGMSALP LNLIKGTRSA AYERLENTED 
    IEEVEQHIQT IKSKSKDGRP LPARDKRALK QFEERLRTLK KRERHLEFIE NSWWTKFCGA 
    LRPLKIVWGI FFILVALLFV ISLFLSNLDK ALHSAGIDSG FIIFGANLSN PLNMLLPLLQ 
    TVFPLDYILI TIIIMYFIFT SMAGIRNIGI WFFWIRLYKI RRGRTRPQAL LFLCMILLLI 
    VLHTSYMIYS LAPQYVMYGS QNYLIETNIT SDNHKGNSTL SVPKRCDADA PEDQCTVTRT 
    YLFLHKFWFF SAAYYFGNWA FLGVFLIGLI VSCCKGKKSV IEGVDEDSDI SDDEPSVYSA