Acetylcholine binding protein: Difference between revisions

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New page: left|300px Acetylcholine binding protein (AChBP) is secreted by snails into cholinergic synapses, where it modulates transmission by binding acetylcholine (ACh). Seq...
 
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= AChBP - Apo proteins =
== AChBP - Apo proteins ==


[[2w8e]], [[2byn]] –  '''''Aplysia  californica''''' (AcAChBP) <br />
[[2w8e]], [[2byn]] –  '''''Aplysia  californica''''' (AcAChBP) <br />
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[[2bj0]] – '''''Bulinus truncatus'''''  
[[2bj0]] – '''''Bulinus truncatus'''''  


= AChBP + marine biotoxins =
== AChBP + marine biotoxins ==


[[2wzy]] – AcAChBP + 13-desmethyl spirolide C  <br />
[[2wzy]] – AcAChBP + 13-desmethyl spirolide C  <br />
[[2x00]] - AcAChBP + gymnodimine A <br />
[[2x00]] - AcAChBP + gymnodimine A <br />


= AChBP + partial agonists; Activate the receptor with partial efficacy =
== AChBP + partial agonists; Activate the receptor with partial efficacy ==


[[2wn9]] - AcAChBP + 4-OH-DMXBA  <br />
[[2wn9]] - AcAChBP + 4-OH-DMXBA  <br />
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[[2wnl]] – AcAChBP + anabaseine [ <br />
[[2wnl]] – AcAChBP + anabaseine [ <br />


= AChBP+ions; Mimicking the ion conductance of the receptor =
== AChBP+ions; Mimicking the ion conductance of the receptor ==


[[3gua]] – AcAChBP + sulfate  <br />
[[3gua]] – AcAChBP + sulfate  <br />


= AChBP+ neonicotinoids; Insecticides with lower affinity to mammals =
== AChBP+ neonicotinoids; Insecticides with lower affinity to mammals ==


[[3c79]] - AcAChBP + imidacloprid  <br />
[[3c79]] - AcAChBP + imidacloprid  <br />
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[[2zjv]] – LsAChBP+clothianidin <br />
[[2zjv]] – LsAChBP+clothianidin <br />


= AChBP+ non-competitive inhibitors which bind at site different than the active site and reduce the rate of receptor reaction =
== AChBP+ non-competitive inhibitors which bind at site different than the active site and reduce the rate of receptor reaction ==


[[2pjz]] - AcAChBP+cocaine <br />
[[2pjz]] - AcAChBP+cocaine <br />
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[[2w8f]], [[2w8g]] – AcAChBP + in silico compounds <br />
[[2w8f]], [[2w8g]] – AcAChBP + in silico compounds <br />


= AChBP+ peptide inhibitors =
== AChBP+ peptide inhibitors ==


[[2c9t]], [[2byp]], [[2br8]] - AcAChBP+conotoxin IMI <br />
[[2c9t]], [[2byp]], [[2br8]] - AcAChBP+conotoxin IMI <br />
[[1yi5]] – AcAChBP+cobratoxin <br />
[[1yi5]] – AcAChBP+cobratoxin <br />


= AChBP+ nicotinic agonists enhance the action of the nAChR =
== AChBP+ nicotinic agonists enhance the action of the nAChR ==


[[2pgz]] – AcAChBP+cocaine <br />
[[2pgz]] – AcAChBP+cocaine <br />
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[[2bys]] - AcAChBP+lobeline <br />
[[2bys]] - AcAChBP+lobeline <br />


= AChBP+ ligand homologs of the ligand acetylcholine =
== AChBP+ ligand homologs of the ligand acetylcholine ==


[[1uv6]] - LsAChBP+ carbamylcholine <br />
[[1uv6]] - LsAChBP+ carbamylcholine <br />
[[1uw6]] - LsAChBP+nicotine <br />
[[1uw6]] - LsAChBP+nicotine <br />


= AChBP+others =
== AChBP+others ==


[[2br7]] – AcAChBP+ HEPES
[[2br7]] – AcAChBP+ HEPES

Revision as of 19:47, 24 April 2010

File:2byn.png

Acetylcholine binding protein (AChBP) is secreted by snails into cholinergic synapses, where it modulates transmission by binding acetylcholine (ACh). Sequence alignment revealed high similarity to the extracellular domains of the ligand-binding subunits of the nicotinic acetylcholine receptor (nAChR). The crystal structure of the AChBP homopentamer indeed provides a valuable model for identifying the nature of the ligand-binding domains and of the subunit interfaces of the nAChR. Furthermore, crystal structures of complexes of AChBP with various agonists and antagonists have provided detailed insight into the neurotransmitter binding site of nAChRs.


AChBP - Apo proteins

2w8e, 2byn – Aplysia californica (AcAChBP)
1ux2, 1i9b – Lymnaea stagnalis (LsAChBP)
2bj0 – Bulinus truncatus

AChBP + marine biotoxins

2wzy – AcAChBP + 13-desmethyl spirolide C
2x00 - AcAChBP + gymnodimine A

AChBP + partial agonists; Activate the receptor with partial efficacy

2wn9 - AcAChBP + 4-OH-DMXBA
2wnc - AcAChBP + tropisetron
2wnj - AcAChBP + DMXBA
2wnl – AcAChBP + anabaseine [

AChBP+ions; Mimicking the ion conductance of the receptor

3gua – AcAChBP + sulfate

AChBP+ neonicotinoids; Insecticides with lower affinity to mammals

3c79 - AcAChBP + imidacloprid
2zju – LsAChBP + imidacloprid
3c84 – AcAChBP + thiacloprid
2zjv – LsAChBP+clothianidin

AChBP+ non-competitive inhibitors which bind at site different than the active site and reduce the rate of receptor reaction

2pjz - AcAChBP+cocaine
2ph9 - AcAChBP+galanthamine
2w8f, 2w8g – AcAChBP + in silico compounds

AChBP+ peptide inhibitors

2c9t, 2byp, 2br8 - AcAChBP+conotoxin IMI
1yi5 – AcAChBP+cobratoxin

AChBP+ nicotinic agonists enhance the action of the nAChR

2pgz – AcAChBP+cocaine
2byr - AcAChBP+methyllycaconitine
2bys - AcAChBP+lobeline

AChBP+ ligand homologs of the ligand acetylcholine

1uv6 - LsAChBP+ carbamylcholine
1uw6 - LsAChBP+nicotine

AChBP+others

2br7 – AcAChBP+ HEPES

Proteopedia Page Contributors and Editors (what is this?)

Joel L. Sussman, Alexander Berchansky, David Canner, Michal Harel