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(-) Description

Title :  STRUCTURE OF CHICKEN ACID-SENSING ION CHANNEL 1 AT 3.0 A RESOLUTION IN COMPLEX WITH PSALMOTOXIN
 
Authors :  R. J. P. Dawson, J. Benz, P. Stohler, T. Tetaz, C. Joseph, S. Huber, G. Sch D. Huegin, P. Pflimlin, G. Trube, M. G. Rudolph, M. Hennig, A. Ruf
Date :  18 May 11  (Deposition) - 23 May 12  (Release) - 18 Jul 12  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.99
Chains :  Asym./Biol. Unit :  A,B,C,D,E,F
Keywords :  Acid-Sensing, Ion Channel, Membrane Protein, Sodium Channel, Cell Membrane, Glycoprotein, Ion Transport, Membrane, Sodium Transport, Transmembrane, Transport, Transport Protein, Toxin, Cysteine Knot (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  R. J. Dawson, J. Benz, P. Stohler, T. Tetaz, C. Joseph, S. Huber, G. Schmid, D. Hugin, P. Pflimlin, G. Trube, M. G. Rudolph, M. Hennig, A. Ruf
Structure Of The Acid-Sensing Ion Channel 1 In Complex With The Gating Modifier Psalmotoxin 1.
Nat Commun V. 3 936 2012
PubMed-ID: 22760635  |  Reference-DOI: 10.1038/NCOMMS1917

(-) Compounds

Molecule 1 - AMILORIDE-SENSITIVE CATION CHANNEL 2, NEURONAL
    Chains: A, B, C
    Engineered: YES
    Expression System: SPODOPTERA FRUGIPERDA
    Expression System Cell Line: SF9
    Expression System Common: FALL ARMYWORM
    Expression System Taxid: 7108
    Expression System Vector Type: BACULOVIRUS
    Fragment: SEQUENCE DATABASE RESIDUES 26-463
    Gene: ACCN2, ASIC1
    Organism Common: BANTAM,CHICKENS
    Organism Scientific: GALLUS GALLUS
    Organism Taxid: 9031
    Synonym: ACID-SENSING ION CHANNEL 1
 
Molecule 2 - PSALMOTOXIN-1
    Chains: D, E, F
    Engineered: YES
    Organism Common: TRINIDAD CHEVRON TARANTULA
    Organism Scientific: PSALMOPOEUS CAMBRIDGEI
    Organism Taxid: 179874
    Other Details: SYNTHETIC PEPTIDE
    Synonym: PI-TRTX-PC1A, PCTX1, PI-THERAPHOTOXIN-PC1A
    Synthetic: YES

 Structural Features

(-) Chains, Units

  123456
Asymmetric/Biological Unit : ABCDEF

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (4, 10)

Asymmetric/Biological Unit (4, 10)
No.NameCountTypeFull Name
1CL1Ligand/IonCHLORIDE ION
2K2Ligand/IonPOTASSIUM ION
3NAG6Ligand/IonN-ACETYL-D-GLUCOSAMINE
4SO41Ligand/IonSULFATE ION

(-) Sites  (9, 9)

Asymmetric Unit (9, 9)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREASP A:254 , ASN A:367BINDING SITE FOR RESIDUE NAG A 600
2AC2SOFTWAREASN A:394BINDING SITE FOR RESIDUE NAG A 700
3AC3SOFTWAREASP A:260 , GLU A:314BINDING SITE FOR RESIDUE K A 2
4AC4SOFTWAREARG A:310BINDING SITE FOR RESIDUE CL A 464
5AC5SOFTWARETYR A:317 , ASN A:321 , LYS D:6BINDING SITE FOR RESIDUE SO4 A 465
6AC6SOFTWAREASP B:254 , ASN B:367BINDING SITE FOR RESIDUE NAG B 600
7AC7SOFTWAREASN B:394BINDING SITE FOR RESIDUE NAG B 700
8AC8SOFTWAREASP C:254 , ASN C:367BINDING SITE FOR RESIDUE NAG C 600
9AC9SOFTWAREASN C:394BINDING SITE FOR RESIDUE NAG C 700

(-) SS Bonds  (30, 30)

Asymmetric/Biological Unit
No.Residues
1A:94 -A:195
2A:173 -A:180
3A:291 -A:366
4A:309 -A:362
5A:313 -A:360
6A:322 -A:344
7A:324 -A:336
8B:94 -B:195
9B:173 -B:180
10B:291 -B:366
11B:309 -B:362
12B:313 -B:360
13B:322 -B:344
14B:324 -B:336
15C:94 -C:195
16C:173 -C:180
17C:291 -C:366
18C:309 -C:362
19C:313 -C:360
20C:322 -C:344
21C:324 -C:336
22D:3 -D:18
23D:10 -D:23
24D:17 -D:33
25E:3 -E:18
26E:10 -E:23
27E:17 -E:33
28F:3 -F:18
29F:10 -F:23
30F:17 -F:33

(-) Cis Peptide Bonds  (3, 3)

Asymmetric/Biological Unit
No.Residues
1Ile A:380 -Pro A:381
2Ile B:380 -Pro B:381
3Ile C:380 -Pro C:381

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 3S3X)

(-) PROSITE Motifs  (1, 3)

Asymmetric/Biological Unit (1, 3)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1ASCPS01206 Amiloride-sensitive sodium channels signature.ASIC1_CHICK304-324
 
 		  3A:304-324
B:304-324
C:304-324

(-) Exons   (0, 0)

(no "Exon" information available for 3S3X)

(-) Sequences/Alignments

Asymmetric/Biological Unit
   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:401
 aligned with ASIC1_CHICK | Q1XA76 from UniProtKB/Swiss-Prot  Length:527

    Alignment length:404
                                    54        64        74        84        94       104       114       124       134       144       154       164       174       184       194       204       214       224       234       244       254       264       274       284       294       304       314       324       334       344       354       364       374       384       394       404       414       424       434       444    
          ASIC1_CHICK    45 VVWALCFMGSLALLALVCTNRIQYYFLYPHVTKLDEVAATRLTFPAVTFCNLNEFRFSRVTKNDLYHAGELLALLNNRYEIPDTQTADEKQLEILQDKANFRNFKPKPFNMLEFYDRAGHDIREMLLSCFFRGEQCSPEDFKVVFTRYGKCYTFNAGQDGKPRLITMKGGTGNGLEIMLDIQQDEYLPVWGETDETSFEAGIKVQIHSQDEPPLIDQLGFGVAPGFQTFVSCQEQRLIYLPPPWGDCKATTGDSEFYDTYSITACRIDCETRYLVENCNCRMVHMPGDAPYCTPEQYKECADPALDFLVEKDNEYCVCEMPCNVTRYGKELSMVKIPSKASAKYLAKKYNKSEQYIGENILVLDIFFEALNYETIEQKKAYEVAGLLGDIGGQMGLFIGASILT 448
               SCOP domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .hhhhhhhhhhhhhhhhhhhhhh......eeeeeeee....ee..eeeeee.........hhhhhhhhh..................hhhhhhhhhh............hhhhhhhhhh.hhhhheeeeee..ee.hhh.eeeeee..eeeeee..........ee...hhhh.eeeeee.hhhhh...............eeeeee......hhhhhheee...eeeeeeeeeeeee..........---.........hhhhhhhhhhhhhhhhhhh.............hhhhhhhhhhhhhhhhhhh...........eeeeeeeeeeeee.....hhhhhhhhh..hhhhhhhheeeeeeeeeeeeeeeeeeee..hhhhhhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ASC  PDB: A:304-324  ---------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3s3x A  45 VVWALCFMGSLALLALVCTNRIQYYFLYPHVTKLDEVAATRLTFPAVTFCNLNEFRFSRVTKNDLYHAGELLALLNNRYEIPDTQTADEKQLEILQDKANFRNFKPKPFNMLEFYDRAGHDIREMLLSCFFRGEQCSPEDFKVVFTRYGKCYTFNAGQDGKPRLITMKGGTGNGLEIMLDIQQDEYLPVWGETDETSFEAGIKVQIHSQDEPPLIDQLGFGVAPGFQTFVSCQEQRLIYLPPPWGDCK---GDSEFYDTYSITACRIDCETRYLVENCNCRMVHMPGDAPYCTPEQYKECADPALDFLVEKDNEYCVCEMPCNVTRYGKELSMVKIPSKASAKYLAKKYNKSEQYIGENILVLDIFFEALNYETIEQKKAYEVAGLLGDIGGQMGLFIGASILT 448
                                    54        64        74        84        94       104       114       124       134       144       154       164       174       184       194       204       214       224       234       244       254       264       274       284       | - |     304       314       324       334       344       354       364       374       384       394       404       414       424       434       444    
                                                                                                                                                                                                                                                                                 292 296                                                                                                                                                        


Chain B from PDB  Type:PROTEIN  Length:391
 aligned with ASIC1_CHICK | Q1XA76 from UniProtKB/Swiss-Prot  Length:527

    Alignment length:394
                                    58        68        78        88        98       108       118       128       138       148       158       168       178       188       198       208       218       228       238       248       258       268       278       288       298       308       318       328       338       348       358       368       378       388       398       408       418       428       438    
          ASIC1_CHICK    49 LCFMGSLALLALVCTNRIQYYFLYPHVTKLDEVAATRLTFPAVTFCNLNEFRFSRVTKNDLYHAGELLALLNNRYEIPDTQTADEKQLEILQDKANFRNFKPKPFNMLEFYDRAGHDIREMLLSCFFRGEQCSPEDFKVVFTRYGKCYTFNAGQDGKPRLITMKGGTGNGLEIMLDIQQDEYLPVWGETDETSFEAGIKVQIHSQDEPPLIDQLGFGVAPGFQTFVSCQEQRLIYLPPPWGDCKATTGDSEFYDTYSITACRIDCETRYLVENCNCRMVHMPGDAPYCTPEQYKECADPALDFLVEKDNEYCVCEMPCNVTRYGKELSMVKIPSKASAKYLAKKYNKSEQYIGENILVLDIFFEALNYETIEQKKAYEVAGLLGDIGGQMGLFI 442
               SCOP domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .hhhhhhh.......hhhhhhh...eeeeeeee....ee..eeeeee.........hhhhhhhhh..................hhhhhhhhhh............hhhhhhhhhh.hhhhheeeeee..ee.hhh.eeeeee..eeeeee..........ee...hhhh.eeeeee.hhhhh...............eeeeee......hhhhhheee...eeeeeeeeeeeee.............---......hhhhhhhhhhhhhhhhhhh.............hhhhhhhhhhhhhhhhhhh...........eeeeeeeeeeeee.....hhhhhhhhh..hhhhhhhheeeeeeeeeeeeeeeeeeee..hhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ASC  PDB: B:304-324  ---------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3s3x B  49 LCFMGSLALLALVCTNRIQYYFLYPHVTKLDEVAATRLTFPAVTFCNLNEFRFSRVTKNDLYHAGELLALLNNRYEIPDTQTADEKQLEILQDKANFRNFKPKPFNMLEFYDRAGHDIREMLLSCFFRGEQCSPEDFKVVFTRYGKCYTFNAGQDGKPRLITMKGGTGNGLEIMLDIQQDEYLPVWGETDETSFEAGIKVQIHSQDEPPLIDQLGFGVAPGFQTFVSCQEQRLIYLPPPWGDCKATT---EFYDTYSITACRIDCETRYLVENCNCRMVHMPGDAPYCTPEQYKECADPALDFLVEKDNEYCVCEMPCNVTRYGKELSMVKIPSKASAKYLAKKYNKSEQYIGENILVLDIFFEALNYETIEQKKAYEVAGLLGDIGGQMGLFI 442
                                    58        68        78        88        98       108       118       128       138       148       158       168       178       188       198       208       218       228       238       248       258       268       278       288      |  -|      308       318       328       338       348       358       368       378       388       398       408       418       428       438    
                                                                                                                                                                                                                                                                                295 299                                                                                                                                               


Chain C from PDB  Type:PROTEIN  Length:396
 aligned with ASIC1_CHICK | Q1XA76 from UniProtKB/Swiss-Prot  Length:527

    Alignment length:400
                                    59        69        79        89        99       109       119       129       139       149       159       169       179       189       199       209       219       229       239       249       259       269       279       289       299       309       319       329       339       349       359       369       379       389       399       409       419       429       439       449
          ASIC1_CHICK    50 CFMGSLALLALVCTNRIQYYFLYPHVTKLDEVAATRLTFPAVTFCNLNEFRFSRVTKNDLYHAGELLALLNNRYEIPDTQTADEKQLEILQDKANFRNFKPKPFNMLEFYDRAGHDIREMLLSCFFRGEQCSPEDFKVVFTRYGKCYTFNAGQDGKPRLITMKGGTGNGLEIMLDIQQDEYLPVWGETDETSFEAGIKVQIHSQDEPPLIDQLGFGVAPGFQTFVSCQEQRLIYLPPPWGDCKATTGDSEFYDTYSITACRIDCETRYLVENCNCRMVHMPGDAPYCTPEQYKECADPALDFLVEKDNEYCVCEMPCNVTRYGKELSMVKIPSKASAKYLAKKYNKSEQYIGENILVLDIFFEALNYETIEQKKAYEVAGLLGDIGGQMGLFIGASILTV 449
               SCOP domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhhhhhhhhh..eeeeeeee....ee..eeeeee.........hhhhhhhhh..................hhhhhhhhhh............hhhhhhhhhh.hhhhheeeeee..ee.hhh.eeeeee..eeeeee..........ee...hhhh.eeeeee.hhhhh...............eeeeee......hhhhhheee...eeeeeeeeeeeee...........----.......hhhhhhhhhhhhhhhhhhh.............hhhhhhhhhhhhhhhhhhh...........eeeeeeeeeeeee.....hhhhhhhhh..hhhhhhhheeeeeeeeeeeeeeeeeeee..hhhhhhhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ASC  PDB: C:304-324  ----------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3s3x C  50 CFMGSLALLALVCTNRIQYYFLYPHVTKLDEVAATRLTFPAVTFCNLNEFRFSRVTKNDLYHAGELLALLNNRYEIPDTQTADEKQLEILQDKANFRNFKPKPFNMLEFYDRAGHDIREMLLSCFFRGEQCSPEDFKVVFTRYGKCYTFNAGQDGKPRLITMKGGTGNGLEIMLDIQQDEYLPVWGETDETSFEAGIKVQIHSQDEPPLIDQLGFGVAPGFQTFVSCQEQRLIYLPPPWGDCKA----SEFYDTYSITACRIDCETRYLVENCNCRMVHMPGDAPYCTPEQYKECADPALDFLVEKDNEYCVCEMPCNVTRYGKELSMVKIPSKASAKYLAKKYNKSEQYIGENILVLDIFFEALNYETIEQKKAYEVAGLLGDIGGQMGLFIGASILTV 449
                                    59        69        79        89        99       109       119       129       139       149       159       169       179       189       199       209       219       229       239       249       259       269       279       289   |   299       309       319       329       339       349       359       369       379       389       399       409       419       429       439       449
                                                                                                                                                                                                                                                                             293  298                                                                                                                                                       


Chain D from PDB  Type:PROTEIN  Length:37
 aligned with TXP1_PSACA | P60514 from UniProtKB/Swiss-Prot  Length:40

    Alignment length:37
                                    11        21        31       
           TXP1_PSACA     2 DCIPKWKGCVNRHGDCCEGLECWKRRRSFEVCVPKTP  38
               SCOP domains ------------------------------------- SCOP domains
               CATH domains ------------------------------------- CATH domains
               Pfam domains ------------------------------------- Pfam domains
         Sec.struct. author ...................eeee.......eeee... Sec.struct. author
                 SAPs(SNPs) ------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------- PROSITE
                 Transcript ------------------------------------- Transcript
                 3s3x D   2 DCIPKWKGCVNRHGDCCEGLECWKRRRSFEVCVPKTP  38
                                    11        21        31       


Chain E from PDB  Type:PROTEIN  Length:37
 aligned with TXP1_PSACA | P60514 from UniProtKB/Swiss-Prot  Length:40

    Alignment length:37
                                    11        21        31       
           TXP1_PSACA     2 DCIPKWKGCVNRHGDCCEGLECWKRRRSFEVCVPKTP  38
               SCOP domains ------------------------------------- SCOP domains
               CATH domains ------------------------------------- CATH domains
               Pfam domains ------------------------------------- Pfam domains
         Sec.struct. author ...................eeee.......eeee... Sec.struct. author
                 SAPs(SNPs) ------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------- PROSITE
                 Transcript ------------------------------------- Transcript
                 3s3x E   2 DCIPKWKGCVNRHGDCCEGLECWKRRRSFEVCVPKTP  38
                                    11        21        31       


Chain F from PDB  Type:PROTEIN  Length:37
 aligned with TXP1_PSACA | P60514 from UniProtKB/Swiss-Prot  Length:40

    Alignment length:37
                                    11        21        31       
           TXP1_PSACA     2 DCIPKWKGCVNRHGDCCEGLECWKRRRSFEVCVPKTP  38
               SCOP domains ------------------------------------- SCOP domains
               CATH domains ------------------------------------- CATH domains
               Pfam domains ------------------------------------- Pfam domains
         Sec.struct. author ...................eeee.......eeee... Sec.struct. author
                 SAPs(SNPs) ------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------- PROSITE
                 Transcript ------------------------------------- Transcript
                 3s3x F   2 DCIPKWKGCVNRHGDCCEGLECWKRRRSFEVCVPKTP  38
                                    11        21        31
   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 3S3X)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 3S3X)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 3S3X)

(-) Gene Ontology  (26, 26)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A,B,C   (ASIC1_CHICK | Q1XA76)
molecular function
    GO:0044736    acid-sensing ion channel activity    Enables the transmembrane transfer of a sodium ion by a neuronal, voltage-insensitive channel that opens when an extracellular proton has been bound by the channel complex.
    GO:0005261    cation channel activity    Enables the energy-independent passage of cations across a lipid bilayer down a concentration gradient.
    GO:0022839    ion gated channel activity    Enables the transmembrane transfer of a solute by a channel that opens in response to a specific ion stimulus.
    GO:0015280    ligand-gated sodium channel activity    Enables the transmembrane transfer of a sodium ion by a channel that opens when a specific ligand has been bound by the channel complex or one of its constituent parts.
    GO:0005272    sodium channel activity    Enables the facilitated diffusion of a sodium ion (by an energy-independent process) involving passage through a transmembrane aqueous pore or channel without evidence for a carrier-mediated mechanism.
biological process
    GO:0008306    associative learning    Learning by associating a stimulus (the cause) with a particular outcome (the effect).
    GO:0070588    calcium ion transmembrane transport    A process in which a calcium ion is transported from one side of a membrane to the other by means of some agent such as a transporter or pore.
    GO:0006812    cation transport    The directed movement of cations, atoms or small molecules with a net positive charge, into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
    GO:0071467    cellular response to pH    Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a pH stimulus. pH is a measure of the acidity or basicity of an aqueous solution.
    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:0007613    memory    The activities involved in the mental information processing system that receives (registers), modifies, stores, and retrieves informational stimuli. The main stages involved in the formation and retrieval of memory are encoding (processing of received information by acquisition), storage (building a permanent record of received information as a result of consolidation) and retrieval (calling back the stored information and use it in a suitable way to execute a given task).
    GO:0046929    negative regulation of neurotransmitter secretion    Any process that stops, prevents, or reduces the frequency, rate or extent of the regulated release of a neurotransmitter.
    GO:0070207    protein homotrimerization    The formation of a protein homotrimer, a macromolecular structure consisting of three noncovalently associated identical subunits.
    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:0010447    response to acidic pH    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 pH stimulus with pH < 7. pH is a measure of the acidity or basicity of an aqueous solution.
    GO:0050915    sensory perception of sour taste    The series of events required to receive a sour taste stimulus, convert it to a molecular signal, and recognize and characterize the signal. This is a neurological process.
    GO:0035725    sodium ion transmembrane transport    A process in which a sodium ion is transported from one side of a membrane to the other by means of some agent such as a transporter or pore.
    GO:0006814    sodium ion transport    The directed movement of sodium ions (Na+) into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
    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: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:0005887    integral component of plasma membrane    The component of the plasma 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: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: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 D,E,F   (TXP1_PSACA | P60514)
cellular component
    GO:0005576    extracellular region    The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.

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  3s3x
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  TXP1_PSACA | P60514
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 Related Entries

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

UniProtKB/Swiss-Prot
        ASIC1_CHICK | Q1XA76: 2qts 3ij4 3s3w 4fz0 4fz1 4ntw 4ntx 4nty 4nyk
        TXP1_PSACA | P60514: 1lmm 2kni 4fz0 4fz1

(-) Related Entries Specified in the PDB File

3s3w