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Asym./Biol. Unit (Jmol Viewer)

Asym./Biol. Unit - sites (Jmol Viewer)

Title :   STRUCTURE OF CHICKEN ACID-SENSING ION CHANNEL 1 AT 2.6 A RESOLUTION AND PH 7.5

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) - 27 May 15 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.60

Chains :   Asym./Biol. Unit : A,B,C

Keywords :   Acid-Sensing, Ion Channel, Cell Membrane, Glycoprotein, Ion Transport, Membrane, Sodium Transport, Transmembrane, Transport, Transport Protein, Membrane Glycoprotein, Sodium Channel, Membrane Protein (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

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

		1	2	3
Asymmetric/Biological Unit	:	A	B	C

Summary Information (see also Sequences/Alignments below)

Asymmetric/Biological Unit (2, 12)

No.	Name	Count	Type	Full Name
1	CL	3	Ligand/Ion	CHLORIDE ION
2	NAG	9	Ligand/Ion	N-ACETYL-D-GLUCOSAMINE

Asymmetric Unit (12, 12)

No.	Name	Evidence	Residues	Description
01	AC1	SOFTWARE	ASP A:254 , ARG A:280 , ASN A:367 , HOH A:473 , HOH A:488 , NAG A:601	BINDING SITE FOR RESIDUE NAG A 600
02	AC2	SOFTWARE	ARG A:207 , NAG A:600	BINDING SITE FOR RESIDUE NAG A 601
03	AC3	SOFTWARE	ASN A:394	BINDING SITE FOR RESIDUE NAG A 700
04	AC4	SOFTWARE	ARG A:310 , GLU A:314 , LYS C:212	BINDING SITE FOR RESIDUE CL A 464
05	AC5	SOFTWARE	ASP B:254 , ARG B:280 , ASN B:367 , HOH B:476 , HOH B:502 , NAG B:601	BINDING SITE FOR RESIDUE NAG B 600
06	AC6	SOFTWARE	ARG B:207 , NAG B:600	BINDING SITE FOR RESIDUE NAG B 601
07	AC7	SOFTWARE	ASN B:394 , NAG B:701	BINDING SITE FOR RESIDUE NAG B 700
08	AC8	SOFTWARE	NAG B:700	BINDING SITE FOR RESIDUE NAG B 701
09	AC9	SOFTWARE	LYS A:212 , ARG B:310 , GLU B:314	BINDING SITE FOR RESIDUE CL B 464
10	BC1	SOFTWARE	ASP C:254 , ARG C:280 , ASN C:367	BINDING SITE FOR RESIDUE NAG C 600
11	BC2	SOFTWARE	ASN C:394	BINDING SITE FOR RESIDUE NAG C 700
12	BC3	SOFTWARE	LYS B:212 , ARG C:310 , GLU C:314	BINDING SITE FOR RESIDUE CL C 464

Asymmetric/Biological Unit

No.	Residues
1	A:94	-	A:195
2	A:173	-	A:180
3	A:291	-	A:366
4	A:309	-	A:362
5	A:313	-	A:360
6	A:322	-	A:344
7	A:324	-	A:336
8	B:94	-	B:195
9	B:173	-	B:180
10	B:291	-	B:366
11	B:309	-	B:362
12	B:313	-	B:360
13	B:322	-	B:344
14	B:324	-	B:336
15	C:94	-	C:195
16	C:173	-	C:180
17	C:291	-	C:366
18	C:309	-	C:362
19	C:313	-	C:360
20	C:322	-	C:344
21	C:324	-	C:336

Asymmetric/Biological Unit

No.	Residues
1	Pro A:286	-	Pro A:287
2	Ile A:380	-	Pro A:381
3	Pro B:286	-	Pro B:287
4	Ile B:380	-	Pro B:381
5	Pro C:286	-	Pro C:287
6	Ile C:380	-	Pro C:381

(no "SAP(SNP)/Variant" information available for 3S3W)

Asymmetric/Biological Unit (1, 3)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	ASC	PS01206	Amiloride-sensitive sodium channels signature.	ASIC1_CHICK	304-324	3	A:304-324 B:304-324 C:304-324

(no "Exon" information available for 3S3W)

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:396
 aligned with ASIC1_CHICK | Q1XA76 from UniProtKB/Swiss-Prot  Length:527

    Alignment length:402
                                    57        67        77        87        97       107       117       127       137       147       157       167       177       187       197       207       217       227       237       247       257       267       277       287       297       307       317       327       337       347       357       367       377       387       397       407       417       427       437       447  
          ASIC1_CHICK    48 ALCFMGSLALLALVCTNRIQYYFLYPHVTKLDEVAATRLTFPAVTFCNLNEFRFSRVTKNDLYHAGELLALLNNRYEIPDTQTADEKQLEILQDKANFRNFKPKPFNMLEFYDRAGHDIREMLLSCFFRGEQCSPEDFKVVFTRYGKCYTFNAGQDGKPRLITMKGGTGNGLEIMLDIQQDEYLPVWGETDETSFEAGIKVQIHSQDEPPLIDQLGFGVAPGFQTFVSCQEQRLIYLPPPWGDCKATTGDSEFYDTYSITACRIDCETRYLVENCNCRMVHMPGDAPYCTPEQYKECADPALDFLVEKDNEYCVCEMPCNVTRYGKELSMVKIPSKASAKYLAKKYNKSEQYIGENILVLDIFFEALNYETIEQKKAYEVAGLLGDIGGQMGLFIGASILTV 449
               SCOP domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author ..hhhhhhhhhhhhhhhhhhhhhhh.eeeeeeee....ee..eeeeee....hhhhhhhhhhhhhh..................hhhhhhhhhhhh..........hhhhhhhhhh.hhhhheeeeee..ee.hhh.eeeeee..eeeeee..........ee...hhhh.eeeeee.hhhhh...............eeeeee......hhhhhheee...eeeeeeeeeeeee............------....hhhhhhhhhhhhhhhhhhh.............hhhhhhhhhhhhhhhhhhh...........eeeeeeeeeeeee..hhhhhhhhhhhh..hhhhhhhheeeeeeeeeeeeeeeeeeee..hhhhhhhhhhhhhhhhhh...... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ASC  PDB: A:304-324  ----------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 3s3w A  48 ALCFMGSLALLALVCTNRIQYYFLYPHVTKLDEVAATRLTFPAVTFCNLNEFRFSRVTKNDLYHAGELLALLNNRYEIPDTQTADEKQLEILQDKANFRNFKPKPFNMLEFYDRAGHDIREMLLSCFFRGEQCSPEDFKVVFTRYGKCYTFNAGQDGKPRLITMKGGTGNGLEIMLDIQQDEYLPVWGETDETSFEAGIKVQIHSQDEPPLIDQLGFGVAPGFQTFVSCQEQRLIYLPPPWGDCKAT------YDTYSITACRIDCETRYLVENCNCRMVHMPGDAPYCTPEQYKECADPALDFLVEKDNEYCVCEMPCNVTRYGKELSMVKIPSKASAKYLAKKYNKSEQYIGENILVLDIFFEALNYETIEQKKAYEVAGLLGDIGGQMGLFIGASILTV 449
                                    57        67        77        87        97       107       117       127       137       147       157       167       177       187       197       207       217       227       237       247       257       267       277       287      |  -   |   307       317       327       337       347       357       367       377       387       397       407       417       427       437       447  
                                                                                                                                                                                                                                                                                294    301

Chain B from PDB  Type:PROTEIN  Length:397
 aligned with ASIC1_CHICK | Q1XA76 from UniProtKB/Swiss-Prot  Length:527

    Alignment length:401
                                    61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341       351       361       371       381       391       401       411       421       431       441       451 
          ASIC1_CHICK    52 MGSLALLALVCTNRIQYYFLYPHVTKLDEVAATRLTFPAVTFCNLNEFRFSRVTKNDLYHAGELLALLNNRYEIPDTQTADEKQLEILQDKANFRNFKPKPFNMLEFYDRAGHDIREMLLSCFFRGEQCSPEDFKVVFTRYGKCYTFNAGQDGKPRLITMKGGTGNGLEIMLDIQQDEYLPVWGETDETSFEAGIKVQIHSQDEPPLIDQLGFGVAPGFQTFVSCQEQRLIYLPPPWGDCKATTGDSEFYDTYSITACRIDCETRYLVENCNCRMVHMPGDAPYCTPEQYKECADPALDFLVEKDNEYCVCEMPCNVTRYGKELSMVKIPSKASAKYLAKKYNKSEQYIGENILVLDIFFEALNYETIEQKKAYEVAGLLGDIGGQMGLFIGASILTVLEL 452
               SCOP domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .hhhhhhhhhhhhhhhhhh...eeeeeeee....ee..eeeeee....hhhhhhhhhhhhhh..................hhhhhhhhhhhh..........hhhhhhhhhh.hhhhheeeeee..ee.hhh.eeeeee..eeeeee..........ee...hhhh.eeeeee.hhhhh...............eeeeee......hhhhhheee...eeeeeeeeeeeee............----......hhhhhhhhhhhhhhhhhhh.............hhhhhhhhhhhhhhhhhhh...........eeeeeeeeeeeee..hhhhhhhhhhhh..hhhhhhhheeeeeeeeeeeeeeeeeeee..hhhhhhhhhhhhhhhhhh...hhhhhh Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ASC  PDB: B:304-324  -------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3s3w B  52 MGSLALLALVCTNRIQYYFLYPHVTKLDEVAATRLTFPAVTFCNLNEFRFSRVTKNDLYHAGELLALLNNRYEIPDTQTADEKQLEILQDKANFRNFKPKPFNMLEFYDRAGHDIREMLLSCFFRGEQCSPEDFKVVFTRYGKCYTFNAGQDGKPRLITMKGGTGNGLEIMLDIQQDEYLPVWGETDETSFEAGIKVQIHSQDEPPLIDQLGFGVAPGFQTFVSCQEQRLIYLPPPWGDCKAT----EFYDTYSITACRIDCETRYLVENCNCRMVHMPGDAPYCTPEQYKECADPALDFLVEKDNEYCVCEMPCNVTRYGKELSMVKIPSKASAKYLAKKYNKSEQYIGENILVLDIFFEALNYETIEQKKAYEVAGLLGDIGGQMGLFIGASILTVLEL 452
                                    61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291  |    301       311       321       331       341       351       361       371       381       391       401       411       421       431       441       451 
                                                                                                                                                                                                                                                                            294  299

Chain C from PDB  Type:PROTEIN  Length:401
 aligned with ASIC1_CHICK | Q1XA76 from UniProtKB/Swiss-Prot  Length:527

    Alignment length:406
                                    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 VVWALCFMGSLALLALVCTNRIQYYFLYPHVTKLDEVAATRLTFPAVTFCNLNEFRFSRVTKNDLYHAGELLALLNNRYEIPDTQTADEKQLEILQDKANFRNFKPKPFNMLEFYDRAGHDIREMLLSCFFRGEQCSPEDFKVVFTRYGKCYTFNAGQDGKPRLITMKGGTGNGLEIMLDIQQDEYLPVWGETDETSFEAGIKVQIHSQDEPPLIDQLGFGVAPGFQTFVSCQEQRLIYLPPPWGDCKATTGDSEFYDTYSITACRIDCETRYLVENCNCRMVHMPGDAPYCTPEQYKECADPALDFLVEKDNEYCVCEMPCNVTRYGKELSMVKIPSKASAKYLAKKYNKSEQYIGENILVLDIFFEALNYETIEQKKAYEVAGLLGDIGGQMGLFIGASILTVL 450
               SCOP domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhhhhhhhhhhhhh...eeeeeeee....ee..eeeeee....hhhhhhhhhhhhhh..................hhhhhhhhhhhh..........hhhhhhhhhh.hhhhheeeeee..ee.hhh.eeeeee..eeeeee..........ee...hhhh.eeeeee.hhhhh...............eeeeee......hhhhhheee...eeeeeeeeeeeee............-----.....hhhhhhhhhhhhhhhhhhh.............hhhhhhhhhhhhhhhhhhh...........eeeeeeeeeeeee..hhhhhhhhhhhh..hhhhhhhheeeeeeeeeeeeeeeeeeee..hhhhhhhhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ASC  PDB: C:304-324  ------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3s3w C  45 VVWALCFMGSLALLALVCTNRIQYYFLYPHVTKLDEVAATRLTFPAVTFCNLNEFRFSRVTKNDLYHAGELLALLNNRYEIPDTQTADEKQLEILQDKANFRNFKPKPFNMLEFYDRAGHDIREMLLSCFFRGEQCSPEDFKVVFTRYGKCYTFNAGQDGKPRLITMKGGTGNGLEIMLDIQQDEYLPVWGETDETSFEAGIKVQIHSQDEPPLIDQLGFGVAPGFQTFVSCQEQRLIYLPPPWGDCKAT-----FYDTYSITACRIDCETRYLVENCNCRMVHMPGDAPYCTPEQYKECADPALDFLVEKDNEYCVCEMPCNVTRYGKELSMVKIPSKASAKYLAKKYNKSEQYIGENILVLDIFFEALNYETIEQKKAYEVAGLLGDIGGQMGLFIGASILTVL 450
                                    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      
                                                                                                                                                                                                                                                                                   294   300

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 '\|'

(no "SCOP Domain" information available for 3S3W)

(no "CATH Domain" information available for 3S3W)

(no "Pfam Domain" information available for 3S3W)

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.

Asymmetric/Biological Unit
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Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (2, 12)

Sites (12, 12)

SS Bonds (21, 21)

Cis Peptide Bonds (6, 6)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

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