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(-)Theoretical Model
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Theoretical Model  (Jmol Viewer)

(-) Description

Title :  MODEL OF RAT ALPHA3BETA4 NICOTINIC RECEPTOR
 
Authors :  Le Novere
Date :  06 Aug 03  (Deposition) - 18 Aug 03  (Release) - 18 Aug 03  (Revision)
Method :  THEORETICAL MODEL
Resolution :  NOT APPLICABLE
Chains :  Theor. Model :  A,B,C,D,E
Keywords :  Nicotinic Receptor, Acetycholine Receptor, Postsynaptic Membrane, Ionic Channel, Glycoprotein (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  N. Le Novere, T. Grutter, J. -P. Changeux
Models Of The Extracellular Domain Of The Nicotinic Receptors And Of Agonist And Ca++ Binding Sites
Proc. Nat. Acad. Sci. Usa. V. 99 3210 2002
PubMed: search
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - NEURONAL ACETYLCHOLINE RECEPTOR PROTEIN
    ChainsA, C
    FragmentEXTRACELLULAR DOMAIN, RESIDUES 28-235
    Organism CommonRAT
    Organism ScientificRATTUS NORVEGICUS
    SynonymALPHA-3 CHAIN PRECURSOR, CHRNA3, ACRA3
 
Molecule 2 - NEURONAL ACETYLCHOLINE RECEPTOR PROTEIN
    ChainsB, D, E
    FragmentEXTRACELLULAR DOMAIN, RESIDUES 25-235
    Organism CommonRAT
    Organism ScientificRATTUS NORVEGICUS
    SynonymBETA-4 CHAIN PRECURSOR, NEURONAL ACETYLCHOLINE RECEPTOR NON-ALPHA-2 CHAIN, N-ALPHA 2, CHRNB4, ACRB4

 Structural Features

(-) Chains, Units

  
Theoretical Model 

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (0, 0)

(no "Ligand,Modified Residues,Ions" information available for 1OLJ)

(-) Sites  (0, 0)

(no "Site" information available for 1OLJ)

(-) SS Bonds  (5, 5)

Theoretical Model
No.Residues
1A:126 -A:140
2A:190 -A:191
3B:128 -B:142
4C:126 -C:140
5C:190 -C:191

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1OLJ)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1OLJ)

(-) PROSITE Motifs  (1, 5)

Theoretical Model (1, 5)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1NEUROTR_ION_CHANNELPS00236 Neurotransmitter-gated ion-channels signature.ACHB4_RAT152-166
 
 
  3B:128-142
D:128-142
E:128-142
ACHA3_RAT153-167
 
  2A:126-140
C:126-140

(-) Exons   (4, 12)

Theoretical Model (4, 12)
 ENSEMBLUniProtKBPDB
No.Transcript IDExonExon IDGenome LocationLengthIDLocationLengthCountLocationLength
1.1ENSRNOT000000194581ENSRNOE00000258432chr8:58605605-58605494112ACHB4_RAT1-18180--
1.4aENSRNOT000000194584aENSRNOE00000138065chr8:58600810-58600662149ACHB4_RAT18-67503B:1-43
D:1-43
E:1-43
43
43
43
1.5ENSRNOT000000194585ENSRNOE00000138201chr8:58593667-5859362345ACHB4_RAT68-82153B:44-58
D:44-58
E:44-58
15
15
15
1.6ENSRNOT000000194586ENSRNOE00000138337chr8:58593520-58593411110ACHB4_RAT83-119373B:59-95
D:59-95
E:59-95
37
37
37
1.7ENSRNOT000000194587ENSRNOE00000138487chr8:58592682-58591692991ACHB4_RAT119-4493313B:95-207
D:95-207
E:95-207
113
113
113
1.8ENSRNOT000000194588ENSRNOE00000398764chr8:58587101-58586895207ACHB4_RAT450-495460--

(-) Sequences/Alignments

Theoretical Model
   Reformat: Number of residues per line =  ('0' or empty: single-line sequence representation)
  Number of residues per labelling interval =   
  UniProt sequence: complete  aligned part    
   Show mapping: SCOP domains CATH domains Pfam domains Secondary structure (by author)
SAPs(SNPs) PROSITE motifs Exons
(details for a mapped element are shown in a popup box when the mouse pointer rests over it)
Chain A from PDB  Type:PROTEIN  Length:208
 aligned with ACHA3_RAT | P04757 from UniProtKB/Swiss-Prot  Length:499

    Alignment length:208
                                    37        47        57        67        77        87        97       107       117       127       137       147       157       167       177       187       197       207       217       227        
            ACHA3_RAT    28 AEHRLFQYLFEDYNEIIRPVANVSHPVIIQFEVSMSQLVKVDEVNQIMETNLWLKQIWNDYKLKWKPSDYQGVEFMRVPAEKIWKPDIVLYNNADGDFQVDDKTKALLKYTGEVTWIPPAIFKSSCKIDVTYFPFDYQNCTMKFGSWSYDKAKIDLVLIGSSMNLKDYWESGEWAIIKAPGYKHEIKYNCCEEIYQDITYSLYIRRLP 235
               SCOP domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .hhhhhhhhhhhh.............eeeeeeeeeeeeeeee....eeeeeeeeeeeee................eeee........eee........ee....eeee....eeee..eeeeeee...........eeeeeeeeee.......eeee................eeeee..eeeeeee......eeeeeeeeeeeee.. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (2) -----------------------------------------------------------------------------------------------------------------------------NEUROTR_ION_CHA-------------------------------------------------------------------- PROSITE (2)
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1olj A   1 AEHRLFQYLFEDYNEIIRPVANVSHPVIIQFEVSMSQLVKVDEVNQIMETNLWLKQIWNDYKLKWKPSDYQGVEFMRVPAEKIWKPDIVLYNNADGDFQVDDKTKALLKYTGEVTWIPPAIFKSSCKIDVTYFPFDYQNCTMKFGSWSYDKAKIDLVLIGSSMNLKDYWESGEWAIIKAPGYKHEIKYNCCEEIYQDITYSLYIRRLP 208
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200        

Chain B from PDB  Type:PROTEIN  Length:207
 aligned with ACHB4_RAT | P12392 from UniProtKB/Swiss-Prot  Length:495

    Alignment length:207
                                    34        44        54        64        74        84        94       104       114       124       134       144       154       164       174       184       194       204       214       224       
            ACHB4_RAT    25 AEEKLMDDLLNKTRYNNLIRPATSSSQLISIRLELSLSQLISVNEREQIMTTSIWLKQEWTDYRLAWNSSCYEGVNILRIPAKRVWLPDIVLYNNADGTYEVSVYTNVIVRSNGSIQWLPPAIYKSACKIEVKHFPFDQQNCTLKFRSWTYDHTEIDMVLKSPTAIMDDFTPSGEWDIVALPGRRTVNPQDPSYVDVTYDFIIKRKP 231
               SCOP domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .hhhhhhhhhh.................eeeeeeeeeeeeeeee....eeeeeeeeeeeee................eeee........eee........ee....eeee....eeee..eeeeeee..............eeeeeee.......eeee..................eeeeeeeeee.........eeeeeeeee.. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------NEUROTR_ION_CHA----------------------------------------------------------------- PROSITE
           Transcript 1 (1) Exon 1.4a  PDB: B:1-43 UniProt: 18-67      Exon 1.5       Exon 1.6  PDB: B:59-95               ---------------------------------------------------------------------------------------------------------------- Transcript 1 (1)
           Transcript 1 (2) ----------------------------------------------------------------------------------------------Exon 1.7  PDB: B:95-207 UniProt: 119-449 [INCOMPLETE]                                                             Transcript 1 (2)
                 1olj B   1 AEEKLMDDLLNKTRYNNLIRPATSSSQLISIRLELSLSQLISVNEREQIMTTSIWLKQEWTDYRLAWNSSCYEGVNILRIPAKRVWLPDIVLYNNADGTYEVSVYTNVIVRSNGSIQWLPPAIYKSACKIEVKHFPFDQQNCTLKFRSWTYDHTEIDMVLKSPTAIMDDFTPSGEWDIVALPGRRTVNPQDPSYVDVTYDFIIKRKP 207
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       

Chain C from PDB  Type:PROTEIN  Length:208
 aligned with ACHA3_RAT | P04757 from UniProtKB/Swiss-Prot  Length:499

    Alignment length:208
                                    37        47        57        67        77        87        97       107       117       127       137       147       157       167       177       187       197       207       217       227        
            ACHA3_RAT    28 AEHRLFQYLFEDYNEIIRPVANVSHPVIIQFEVSMSQLVKVDEVNQIMETNLWLKQIWNDYKLKWKPSDYQGVEFMRVPAEKIWKPDIVLYNNADGDFQVDDKTKALLKYTGEVTWIPPAIFKSSCKIDVTYFPFDYQNCTMKFGSWSYDKAKIDLVLIGSSMNLKDYWESGEWAIIKAPGYKHEIKYNCCEEIYQDITYSLYIRRLP 235
               SCOP domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..hhhhhhhhhh...............eeeeeeeeeeeeeeee....eeeeeeeeeeeee.hhhh..........ee...........eee........ee......eee...eeee..eeeeee................eeeeee.......eeeee................eeeeeeeeeeeee......eeeeeeeeeeee.. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (2) -----------------------------------------------------------------------------------------------------------------------------NEUROTR_ION_CHA-------------------------------------------------------------------- PROSITE (2)
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1olj C   1 AEHRLFQYLFEDYNEIIRPVANVSHPVIIQFEVSMSQLVKVDEVNQIMETNLWLKQIWNDYKLKWKPSDYQGVEFMRVPAEKIWKPDIVLYNNADGDFQVDDKTKALLKYTGEVTWIPPAIFKSSCKIDVTYFPFDYQNCTMKFGSWSYDKAKIDLVLIGSSMNLKDYWESGEWAIIKAPGYKHEIKYNCCEEIYQDITYSLYIRRLP 208
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200        

Chain D from PDB  Type:PROTEIN  Length:207
 aligned with ACHB4_RAT | P12392 from UniProtKB/Swiss-Prot  Length:495

    Alignment length:207
                                    34        44        54        64        74        84        94       104       114       124       134       144       154       164       174       184       194       204       214       224       
            ACHB4_RAT    25 AEEKLMDDLLNKTRYNNLIRPATSSSQLISIRLELSLSQLISVNEREQIMTTSIWLKQEWTDYRLAWNSSCYEGVNILRIPAKRVWLPDIVLYNNADGTYEVSVYTNVIVRSNGSIQWLPPAIYKSACKIEVKHFPFDQQNCTLKFRSWTYDHTEIDMVLKSPTAIMDDFTPSGEWDIVALPGRRTVNPQDPSYVDVTYDFIIKRKP 231
               SCOP domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..hhhhhhhhhhh................eeeeeeeeeeeeeeee....eeeeeeeeeeeee.hhhh..........ee...........eee........ee......eee...eeee..eeeeeee...............eeeeee.......eeee..................eeeeeeeeeeee.....eeeeeeeeeee. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------NEUROTR_ION_CHA----------------------------------------------------------------- PROSITE
           Transcript 1 (1) Exon 1.4a  PDB: D:1-43 UniProt: 18-67      Exon 1.5       Exon 1.6  PDB: D:59-95               ---------------------------------------------------------------------------------------------------------------- Transcript 1 (1)
           Transcript 1 (2) ----------------------------------------------------------------------------------------------Exon 1.7  PDB: D:95-207 UniProt: 119-449 [INCOMPLETE]                                                             Transcript 1 (2)
                 1olj D   1 AEEKLMDDLLNKTRYNNLIRPATSSSQLISIRLELSLSQLISVNEREQIMTTSIWLKQEWTDYRLAWNSSCYEGVNILRIPAKRVWLPDIVLYNNADGTYEVSVYTNVIVRSNGSIQWLPPAIYKSACKIEVKHFPFDQQNCTLKFRSWTYDHTEIDMVLKSPTAIMDDFTPSGEWDIVALPGRRTVNPQDPSYVDVTYDFIIKRKP 207
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       

Chain E from PDB  Type:PROTEIN  Length:207
 aligned with ACHB4_RAT | P12392 from UniProtKB/Swiss-Prot  Length:495

    Alignment length:207
                                    34        44        54        64        74        84        94       104       114       124       134       144       154       164       174       184       194       204       214       224       
            ACHB4_RAT    25 AEEKLMDDLLNKTRYNNLIRPATSSSQLISIRLELSLSQLISVNEREQIMTTSIWLKQEWTDYRLAWNSSCYEGVNILRIPAKRVWLPDIVLYNNADGTYEVSVYTNVIVRSNGSIQWLPPAIYKSACKIEVKHFPFDQQNCTLKFRSWTYDHTEIDMVLKSPTAIMDDFTPSGEWDIVALPGRRTVNPQDPSYVDVTYDFIIKRKP 231
               SCOP domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....hhhhhhhhh.................eeeeeeeeeeeeeeee....eeeeeeeeeeeee.hhhh..........eeeee........eee........ee....eeeee...eee.eeeeeeeee...........eeeeeeeeee.......eeee.....................eeeee...........eeeeeeee. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------NEUROTR_ION_CHA----------------------------------------------------------------- PROSITE
           Transcript 1 (1) Exon 1.4a  PDB: E:1-43 UniProt: 18-67      Exon 1.5       Exon 1.6  PDB: E:59-95               ---------------------------------------------------------------------------------------------------------------- Transcript 1 (1)
           Transcript 1 (2) ----------------------------------------------------------------------------------------------Exon 1.7  PDB: E:95-207 UniProt: 119-449 [INCOMPLETE]                                                             Transcript 1 (2)
                 1olj E   1 AEEKLMDDLLNKTRYNNLIRPATSSSQLISIRLELSLSQLISVNEREQIMTTSIWLKQEWTDYRLAWNSSCYEGVNILRIPAKRVWLPDIVLYNNADGTYEVSVYTNVIVRSNGSIQWLPPAIYKSACKIEVKHFPFDQQNCTLKFRSWTYDHTEIDMVLKSPTAIMDDFTPSGEWDIVALPGRRTVNPQDPSYVDVTYDFIIKRKP 207
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       

   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
    → Modified Residue (blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
  x → Chemical Group (purple background, 'x', labelled with number + name, e.g. ACE or NH2)
  extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '|'

 Classification and Annotation

(-) SCOP Domains  (0, 0)

(no "SCOP Domain" information available for 1OLJ)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 1OLJ)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 1OLJ)

(-) Gene Ontology  (39, 61)

Theoretical Model(hide GO term definitions)
Chain A,C   (ACHA3_RAT | P04757)
molecular function
    GO:0042166    acetylcholine binding    Interacting selectively and non-covalently with acetylcholine, an acetic acid ester of the organic base choline that functions as a neurotransmitter, released at the synapses of parasympathetic nerves and at neuromuscular junctions.
    GO:0015464    acetylcholine receptor activity    Combining with acetylcholine and transmitting the signal from one side of the membrane to the other to initiate a change in cell activity.
    GO:0008144    drug binding    Interacting selectively and non-covalently with a drug, any naturally occurring or synthetic substance, other than a nutrient, that, when administered or applied to an organism, affects the structure or functioning of the organism; in particular, any such substance used in the diagnosis, prevention, or treatment of disease.
    GO:0005230    extracellular ligand-gated ion channel activity    Enables the transmembrane transfer of an ion by a channel that opens when a specific extracellular ligand has been bound by the channel complex or one of its constituent parts.
    GO:0005216    ion channel activity    Enables the facilitated diffusion of an ion (by an energy-independent process) by passage through a transmembrane aqueous pore or channel without evidence for a carrier-mediated mechanism. May be either selective (it enables passage of a specific ion only) or non-selective (it enables passage of two or more ions of same charge but different size).
    GO:0046982    protein heterodimerization activity    Interacting selectively and non-covalently with a nonidentical protein to form a heterodimer.
biological process
    GO:0098655    cation transmembrane transport    A process in which a cation is transported from one side of a membrane to the other by means of some agent such as a transporter or pore.
    GO:0099565    chemical synaptic transmission, postsynaptic    The part of synaptic transmission occurring in the post-synapse: a signal transduction pathway consisting of neurotransmitter receptor activation and its effects on postsynaptic membrane potential and the ionic composition of the postsynaptic cytosol.
    GO:0007507    heart development    The process whose specific outcome is the progression of the heart over time, from its formation to the mature structure. The heart is a hollow, muscular organ, which, by contracting rhythmically, keeps up the circulation of the blood.
    GO:0034220    ion transmembrane transport    A process in which an ion is transported from one side of a membrane to the other by means of some agent such as a transporter or pore.
    GO:0006811    ion transport    The directed movement of charged atoms or small charged molecules into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
    GO:0007274    neuromuscular synaptic transmission    The process of synaptic transmission from a neuron to a muscle, across a synapse.
    GO:0051291    protein heterooligomerization    The process of creating protein oligomers, compounds composed of a small number, usually between three and ten, of component monomers that are not all identical. Oligomers may be formed by the polymerization of a number of monomers or the depolymerization of a large protein polymer.
    GO:0042493    response to drug    Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a drug stimulus. A drug is a substance used in the diagnosis, treatment or prevention of a disease.
    GO:0010035    response to inorganic substance    Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an inorganic substance stimulus.
    GO:0035094    response to nicotine    Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a nicotine stimulus.
    GO:0007165    signal transduction    The cellular process in which a signal is conveyed to trigger a change in the activity or state of a cell. Signal transduction begins with reception of a signal (e.g. a ligand binding to a receptor or receptor activation by a stimulus such as light), or for signal transduction in the absence of ligand, signal-withdrawal or the activity of a constitutively active receptor. Signal transduction ends with regulation of a downstream cellular process, e.g. regulation of transcription or regulation of a metabolic process. Signal transduction covers signaling from receptors located on the surface of the cell and signaling via molecules located within the cell. For signaling between cells, signal transduction is restricted to events at and within the receiving cell.
    GO:0007271    synaptic transmission, cholinergic    The vesicular release of acetylcholine from a presynapse, across a chemical synapse, the subsequent activation of dopamine receptors at the postsynapse of a target cell (neuron, muscle, or secretory cell) and the effects of this activation on the postsynaptic membrane potential and ionic composition of the postsynaptic cytosol. This process encompasses both spontaneous and evoked release of neurotransmitter and all parts of synaptic vesicle exocytosis. Evoked transmission starts with the arrival of an action potential at the presynapse.
    GO:0006810    transport    The directed movement of substances (such as macromolecules, small molecules, ions) or cellular components (such as complexes and organelles) into, out of or within a cell, or between cells, or within a multicellular organism by means of some agent such as a transporter, pore or motor protein.
cellular component
    GO:0005892    acetylcholine-gated channel complex    A homo- or hetero-pentameric protein complex that forms a transmembrane channel through which ions may pass in response to acetylcholine binding.
    GO:0030054    cell junction    A cellular component that forms a specialized region of connection between two or more cells or between a cell and the extracellular matrix. At a cell junction, anchoring proteins extend through the plasma membrane to link cytoskeletal proteins in one cell to cytoskeletal proteins in neighboring cells or to proteins in the extracellular matrix.
    GO:0030425    dendrite    A neuron projection that has a short, tapering, often branched, morphology, receives and integrates signals from other neurons or from sensory stimuli, and conducts a nerve impulse towards the axon or the cell body. In most neurons, the impulse is conveyed from dendrites to axon via the cell body, but in some types of unipolar neuron, the impulse does not travel via the cell body.
    GO:0016021    integral component of membrane    The component of a membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    GO:0043025    neuronal cell body    The portion of a neuron that includes the nucleus, but excludes cell projections such as axons and dendrites.
    GO:0005886    plasma membrane    The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
    GO:0014069    postsynaptic density of dendrite    An electron dense network of proteins within and adjacent to the postsynaptic membrane of the dendrite of asymetric synapses. Its major components include neurotransmitter receptors and the proteins that spatially and functionally organize them such as anchoring and scaffolding molecules, signaling enzymes and cytoskeletal components.
    GO:0045211    postsynaptic membrane    A specialized area of membrane facing the presynaptic membrane on the tip of the nerve ending and separated from it by a minute cleft (the synaptic cleft). Neurotransmitters cross the synaptic cleft and transmit the signal to the postsynaptic membrane.
    GO:0045202    synapse    The junction between a nerve fiber of one neuron and another neuron, muscle fiber or glial cell. As the nerve fiber approaches the synapse it enlarges into a specialized structure, the presynaptic nerve ending, which contains mitochondria and synaptic vesicles. At the tip of the nerve ending is the presynaptic membrane; facing it, and separated from it by a minute cleft (the synaptic cleft) is a specialized area of membrane on the receiving cell, known as the postsynaptic membrane. In response to the arrival of nerve impulses, the presynaptic nerve ending secretes molecules of neurotransmitters into the synaptic cleft. These diffuse across the cleft and transmit the signal to the postsynaptic membrane.

Chain B,D,E   (ACHB4_RAT | P12392)
molecular function
    GO:0042166    acetylcholine binding    Interacting selectively and non-covalently with acetylcholine, an acetic acid ester of the organic base choline that functions as a neurotransmitter, released at the synapses of parasympathetic nerves and at neuromuscular junctions.
    GO:0015464    acetylcholine receptor activity    Combining with acetylcholine and transmitting the signal from one side of the membrane to the other to initiate a change in cell activity.
    GO:0008144    drug binding    Interacting selectively and non-covalently with a drug, any naturally occurring or synthetic substance, other than a nutrient, that, when administered or applied to an organism, affects the structure or functioning of the organism; in particular, any such substance used in the diagnosis, prevention, or treatment of disease.
    GO:0005230    extracellular ligand-gated ion channel activity    Enables the transmembrane transfer of an ion by a channel that opens when a specific extracellular ligand has been bound by the channel complex or one of its constituent parts.
    GO:0005216    ion channel activity    Enables the facilitated diffusion of an ion (by an energy-independent process) by passage through a transmembrane aqueous pore or channel without evidence for a carrier-mediated mechanism. May be either selective (it enables passage of a specific ion only) or non-selective (it enables passage of two or more ions of same charge but different size).
    GO:0005515    protein binding    Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
    GO:0046982    protein heterodimerization activity    Interacting selectively and non-covalently with a nonidentical protein to form a heterodimer.
biological process
    GO:0001508    action potential    A process in which membrane potential cycles through a depolarizing spike, triggered in response to depolarization above some threshold, followed by repolarization. This cycle is driven by the flow of ions through various voltage gated channels with different thresholds and ion specificities.
    GO:0035095    behavioral response to nicotine    Any process that results in a change in the behavior of an organism as a result of a nicotine stimulus.
    GO:0098655    cation transmembrane transport    A process in which a cation is transported from one side of a membrane to the other by means of some agent such as a transporter or pore.
    GO:0099565    chemical synaptic transmission, postsynaptic    The part of synaptic transmission occurring in the post-synapse: a signal transduction pathway consisting of neurotransmitter receptor activation and its effects on postsynaptic membrane potential and the ionic composition of the postsynaptic cytosol.
    GO:0006811    ion transport    The directed movement of charged atoms or small charged molecules into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
    GO:0007626    locomotory behavior    The specific movement from place to place of an organism in response to external or internal stimuli. Locomotion of a whole organism in a manner dependent upon some combination of that organism's internal state and external conditions.
    GO:0007274    neuromuscular synaptic transmission    The process of synaptic transmission from a neuron to a muscle, across a synapse.
    GO:0051971    positive regulation of transmission of nerve impulse    Any process that activates, maintains or increases the frequency, rate or extent of transmission of a nerve impulse, the sequential electrochemical polarization and depolarization that travels across the membrane of a neuron in response to stimulation.
    GO:0051291    protein heterooligomerization    The process of creating protein oligomers, compounds composed of a small number, usually between three and ten, of component monomers that are not all identical. Oligomers may be formed by the polymerization of a number of monomers or the depolymerization of a large protein polymer.
    GO:0042391    regulation of membrane potential    Any process that modulates the establishment or extent of a membrane potential, the electric potential existing across any membrane arising from charges in the membrane itself and from the charges present in the media on either side of the membrane.
    GO:0006940    regulation of smooth muscle contraction    Any process that modulates the frequency, rate or extent of smooth muscle contraction.
    GO:0035094    response to nicotine    Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a nicotine stimulus.
    GO:0007165    signal transduction    The cellular process in which a signal is conveyed to trigger a change in the activity or state of a cell. Signal transduction begins with reception of a signal (e.g. a ligand binding to a receptor or receptor activation by a stimulus such as light), or for signal transduction in the absence of ligand, signal-withdrawal or the activity of a constitutively active receptor. Signal transduction ends with regulation of a downstream cellular process, e.g. regulation of transcription or regulation of a metabolic process. Signal transduction covers signaling from receptors located on the surface of the cell and signaling via molecules located within the cell. For signaling between cells, signal transduction is restricted to events at and within the receiving cell.
    GO:0006939    smooth muscle contraction    A process in which force is generated within smooth muscle tissue, resulting in a change in muscle geometry. Force generation involves a chemo-mechanical energy conversion step that is carried out by the actin/myosin complex activity, which generates force through ATP hydrolysis. Smooth muscle differs from striated muscle in the much higher actin/myosin ratio, the absence of conspicuous sarcomeres and the ability to contract to a much smaller fraction of its resting length.
    GO:0060084    synaptic transmission involved in micturition    The process of communication from a neuron to a smooth muscle in the bladder that contributes to the expulsion of urine from the body.
    GO:0007271    synaptic transmission, cholinergic    The vesicular release of acetylcholine from a presynapse, across a chemical synapse, the subsequent activation of dopamine receptors at the postsynapse of a target cell (neuron, muscle, or secretory cell) and the effects of this activation on the postsynaptic membrane potential and ionic composition of the postsynaptic cytosol. This process encompasses both spontaneous and evoked release of neurotransmitter and all parts of synaptic vesicle exocytosis. Evoked transmission starts with the arrival of an action potential at the presynapse.
    GO:0006810    transport    The directed movement of substances (such as macromolecules, small molecules, ions) or cellular components (such as complexes and organelles) into, out of or within a cell, or between cells, or within a multicellular organism by means of some agent such as a transporter, pore or motor protein.
cellular component
    GO:0005892    acetylcholine-gated channel complex    A homo- or hetero-pentameric protein complex that forms a transmembrane channel through which ions may pass in response to acetylcholine binding.
    GO:0030054    cell junction    A cellular component that forms a specialized region of connection between two or more cells or between a cell and the extracellular matrix. At a cell junction, anchoring proteins extend through the plasma membrane to link cytoskeletal proteins in one cell to cytoskeletal proteins in neighboring cells or to proteins in the extracellular matrix.
    GO:0016021    integral component of membrane    The component of a membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    GO:0043005    neuron projection    A prolongation or process extending from a nerve cell, e.g. an axon or dendrite.
    GO:0005886    plasma membrane    The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
    GO:0045211    postsynaptic membrane    A specialized area of membrane facing the presynaptic membrane on the tip of the nerve ending and separated from it by a minute cleft (the synaptic cleft). Neurotransmitters cross the synaptic cleft and transmit the signal to the postsynaptic membrane.
    GO:0045202    synapse    The junction between a nerve fiber of one neuron and another neuron, muscle fiber or glial cell. As the nerve fiber approaches the synapse it enlarges into a specialized structure, the presynaptic nerve ending, which contains mitochondria and synaptic vesicles. At the tip of the nerve ending is the presynaptic membrane; facing it, and separated from it by a minute cleft (the synaptic cleft) is a specialized area of membrane on the receiving cell, known as the postsynaptic membrane. In response to the arrival of nerve impulses, the presynaptic nerve ending secretes molecules of neurotransmitters into the synaptic cleft. These diffuse across the cleft and transmit the signal to the postsynaptic membrane.

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 Related Entries

(-) Entries Sharing at Least One Protein Chain (UniProt ID)

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        ACHA3_RAT | P047571olf

(-) Related Entries Specified in the PDB File

1ole MODEL OF RAT ALPHA4BETA2 NICOTINIC RECEPTOR
1olf MODEL OF RAT ALPHA3BETA2 NICOTINIC RECEPTORC
1olk MODEL OF TORPEDO NICOTINIC RECEPTORC