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Appears in Networks 10

In-Edges 15

complex(a(HBP:"kappa-Bungarotoxin"), p(HGNC:CHRNB4)) decreases act(p(HGNC:CHRNB4)) View Subject | View Object

Such toxins are not limited to the muscle receptor as seen in the Taiwanese krate snake. This snake produces “neuronal bungarotoxin” (also referred to as 3.1 toxin or kappa-bungarotoxin; Ref. 286), which preferentially binds to and inactivates neuronal nAChRs that contain the alpha3 and beta4 subunits. In this case, the specificity of the toxin appears to in part be controlled by the subtype of beta nAChR subunit; beta2-containing nAChRs are less sensitive than beta4-containing nAChRs to inhibition by neuronal BGT. PubMed:19126755

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path(MESH:"Drug Tolerance") association p(HGNC:CHRNB4) View Subject | View Object

In summary, while nicotine-induced upregulation requires at least the beta2 nAChR subunit, development of tolerance to nicotine requires neither the beta2 nor the alpha7 nAChR subunit; instead, it appears to be modulated by a beta4-containing nAChR and to require an alpha4-containing nAChR. PubMed:19126755

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path(MESH:"Alzheimer Disease") decreases p(HGNC:CHRNB4) View Subject | View Object

Thus, in brains from patients with AD and in neurons responding to exogenously applied Abeta, there is a reduction in expression of nAChR subunits, especially alpha4, alpha7, beta4, and possibly alpha3. Although AD may also involve changes in expression of other ligand-gated ion channels— for example, the expression of NMDA receptors (Bi and Sze, 2002; Jacob et al., 2007), alpha-amino-3-hydroxy- 5-methyl-4-isoxazolepropionic acid receptors (Jacob et al., 2007), and beta3 GABA receptor subunits are all reduced (Mizukami et al., 1998)—there is abundant evidence of a loss of nAChR subunits in AD possibly caused by the actions of Abeta. PubMed:19293145

act(a(CHEBI:nicotine)) association p(HGNC:CHRNB4) View Subject | View Object

Moreover, nAChRs containing β4, α2 and α5 in the habenulo-interpeduncular systems are necessary for nicotine withdrawal in mice107 PubMed:19721446

path(MESH:Craving) association p(HGNC:CHRNB4) View Subject | View Object

β4 deletion abolishes withdrawal signs in the mouse208, and α3 and β4 are also present in the PNS, supporting the view that they might be directly involved in craving and relapse — an area that is largely unexplored in the development of medications to assist with smoking cessation. PubMed:19721446

path(MESH:Recurrence) association p(HGNC:CHRNB4) View Subject | View Object

β4 deletion abolishes withdrawal signs in the mouse208, and α3 and β4 are also present in the PNS, supporting the view that they might be directly involved in craving and relapse — an area that is largely unexplored in the development of medications to assist with smoking cessation. PubMed:19721446

bp(HBP:"habenulo-interpeduncular pathway") increases p(HGNC:CHRNB4, loc(MESH:"Central Nervous System")) View Subject | View Object

The Hb-IPN system expresses the highest levels and va- riety of nAChR subunits and subtypes in mammalian brain [85], and is the only central system expressing high levels of α3, β4 and α5 subunits. PubMed:28901280

Out-Edges 6

p(HGNC:CHRNB4) association path(MESH:"Drug Tolerance") View Subject | View Object

In summary, while nicotine-induced upregulation requires at least the beta2 nAChR subunit, development of tolerance to nicotine requires neither the beta2 nor the alpha7 nAChR subunit; instead, it appears to be modulated by a beta4-containing nAChR and to require an alpha4-containing nAChR. PubMed:19126755

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p(HGNC:CHRNB4) increases a(MESH:"Receptors, Nicotinic") View Subject | View Object

On the other hand, neuronal nicotinic receptors are formed by the combination of only two types of subunits (α2-10 and β2-4) PubMed:26813123

p(HGNC:CHRNB4) association act(a(CHEBI:nicotine)) View Subject | View Object

Moreover, nAChRs containing β4, α2 and α5 in the habenulo-interpeduncular systems are necessary for nicotine withdrawal in mice107 PubMed:19721446

p(HGNC:CHRNB4) association path(MESH:Craving) View Subject | View Object

β4 deletion abolishes withdrawal signs in the mouse208, and α3 and β4 are also present in the PNS, supporting the view that they might be directly involved in craving and relapse — an area that is largely unexplored in the development of medications to assist with smoking cessation. PubMed:19721446

p(HGNC:CHRNB4) association path(MESH:Recurrence) View Subject | View Object

β4 deletion abolishes withdrawal signs in the mouse208, and α3 and β4 are also present in the PNS, supporting the view that they might be directly involved in craving and relapse — an area that is largely unexplored in the development of medications to assist with smoking cessation. PubMed:19721446

About

BEL Commons is developed and maintained in an academic capacity by Charles Tapley Hoyt and Daniel Domingo-Fernández at the Fraunhofer SCAI Department of Bioinformatics with support from the IMI project, AETIONOMY. It is built on top of PyBEL, an open source project. Please feel free to contact us here to give us feedback or report any issues. Also, see our Publishing Notes and Data Protection information.

If you find BEL Commons useful in your work, please consider citing: Hoyt, C. T., Domingo-Fernández, D., & Hofmann-Apitius, M. (2018). BEL Commons: an environment for exploration and analysis of networks encoded in Biological Expression Language. Database, 2018(3), 1–11.