4AXW - JenaLib

Asym./Biol. Unit (Jmol Viewer)

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

Title :   CRYSTAL STRUCTURE OF MOUSE CADHERIN-23 EC1-2 AND PROTOCADHERIN-15 EC1-2, FORM I 2.2A.

Authors :   M. Sotomayor, W. Weihofen, R. Gaudet, D. P. Corey

Date :   14 Jun 12 (Deposition) - 07 Nov 12 (Release) - 12 Dec 12 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.23

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

Keywords :   Cell Adhesion, Hearing, Deafness, Cadherin, Cdh23, Pcdh15, Heterophilic (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   M. Sotomayor, W. Weihofen, R. Gaudet, D. P. Corey
Structure Of A Force-Conveying Cadherin Bond Essential For Inner-Ear Mechanotransduction
Nature V. 492 128 2012
PubMed-ID: 23135401 | Reference-DOI: 10.1038/NATURE11590

Molecule 1 - CADHERIN-23
	Chains	:	A
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Plasmid	:	PET21A
	Expression System Strain	:	BL21(DE3)
	Expression System Taxid	:	469008
	Fragment	:	EC1-2, RESIDUES 24-228
	Organism Common	:	HOUSE MOUSE
	Organism Scientific	:	MUS MUSCULUS
	Organism Taxid	:	10090
	Synonym	:	OTOCADHERIN

Molecule 2 - PROTOCADHERIN-15
	Chains	:	B
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Strain	:	BL21(DE3)
	Expression System Taxid	:	469008
	Expression System Vector	:	PET21A
	Expression System Vector Type	:	PLASMID
	Fragment	:	EC1-2, RESIDUES 27-259
	Organism Common	:	HOUSE MOUSE
	Organism Scientific	:	MUS MUSCULUS
	Organism Taxid	:	10090

		1	2
Asymmetric/Biological Unit	:	A	B

Summary Information (see also Sequences/Alignments below)

Asymmetric/Biological Unit (6, 12)

No.	Name	Count	Type	Full Name
1	CA	7	Ligand/Ion	CALCIUM ION
2	CL	1	Ligand/Ion	CHLORIDE ION
3	GOL	1	Ligand/Ion	GLYCEROL
4	K	1	Ligand/Ion	POTASSIUM ION
5	MES	1	Ligand/Ion	2-(N-MORPHOLINO)-ETHANESULFONIC ACID
6	PG4	1	Ligand/Ion	TETRAETHYLENE GLYCOL

Asymmetric Unit (12, 12)

No.	Name	Evidence	Residues	Description
01	AC1	SOFTWARE	ASN A:4 , ARG A:5 , ASP A:37 , ASP A:39 , ASP A:41 , ASP A:87	BINDING SITE FOR RESIDUE CA A1209
02	AC2	SOFTWARE	GLU A:22 , GLU A:74 , ASP A:102 , VAL A:103 , ASP A:105 , ASP A:138	BINDING SITE FOR RESIDUE CA A1210
03	AC3	SOFTWARE	GLU A:22 , ASP A:72 , GLU A:74 , ASP A:105 , HOH A:2037 , HOH A:2086	BINDING SITE FOR RESIDUE CA A1211
04	AC4	SOFTWARE	ASN A:104 , ASN A:106 , ASP A:136 , ASP A:138 , GLY A:142 , ASP A:187	BINDING SITE FOR RESIDUE CA A1212
05	AC5	SOFTWARE	ASN A:11 , HIS A:12 , PHE A:13 , GLN A:32 , VAL A:58 , PRO A:60 , TRP A:66 , PG4 A:1214 , HOH A:2025 , HOH A:2185	BINDING SITE FOR RESIDUE MES A1213
06	AC6	SOFTWARE	VAL A:30 , THR A:31 , PHE A:45 , MES A:1213	BINDING SITE FOR RESIDUE PG4 A1214
07	AC7	SOFTWARE	ILE A:131	BINDING SITE FOR RESIDUE CL A1215
08	AC8	SOFTWARE	ASN B:120 , ASN B:122 , ASP B:157 , ASP B:159 , ASN B:163 , ASP B:215	BINDING SITE FOR RESIDUE CA B1237
09	AC9	SOFTWARE	GLU B:27 , GLU B:28 , ASP B:83 , ASP B:85 , ASP B:121 , HOH B:2058	BINDING SITE FOR RESIDUE CA B1238
10	BC1	SOFTWARE	GLU B:27 , ASP B:85 , ASP B:118 , ARG B:119 , ASP B:121 , ASP B:159	BINDING SITE FOR RESIDUE CA B1239
11	BC2	SOFTWARE	HOH A:2091 , ALA B:20 , ILE B:22 , HOH B:2162	BINDING SITE FOR RESIDUE GOL B1240
12	BC3	SOFTWARE	ASP B:157 , ASP B:159 , GLY B:164	BINDING SITE FOR RESIDUE K B1241

Asymmetric/Biological Unit

No.	Residues
1	B:11	-	B:99

Asymmetric/Biological Unit

No.	Residues
1	Gln A:113	-	Pro A:114
2	Gln A:150	-	Pro A:151
3	Pro B:86	-	Pro B:87

Asymmetric/Biological Unit (1, 1)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_CAD23_MOUSE_002 *	M	229	V	CAD23_MOUSE	---	---	A	L	207	V
	* ID not provided by source

SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

Asymmetric/Biological Unit (2, 5)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	CADHERIN_2	PS50268	Cadherins domain profile.	CAD23_MOUSE	42-132 133-236 237-348 349-460 461-561 562-671 672-784 779-890 891-995 996-1102 1103-1208 1210-1313 1314-1418 1420-1527 1529-1634 1635-1744 1759-1851 1852-1959 1960-2069 2070-2174 2175-2293 2297-2402 2403-2509 2510-2611 2614-2722 2729-2846 2847-2975	2	A:20-110 A:111-206 - - - - - - - - - - - - - - - - - - - - - - - - -
1	CADHERIN_2	PS50268	Cadherins domain profile.	PCD15_MOUSE	153-270 283-400 401-514 515-621 622-722 724-824 825-931 932-1040 1042-1149 1150-1264	1	B:127-233 - - - - - - - - -
2	CADHERIN_1	PS00232	Cadherin domain signature.	CAD23_MOUSE	120-130 336-346 549-559 659-669 766-776 878-888 1090-1100 1406-1416 1515-1525 1622-1632 1732-1742 1839-1849 1947-1957 2057-2067 2281-2291 2390-2400 2599-2609	1	A:98-108 - - - - - - - - - - - - - - - -
2	CADHERIN_1	PS00232	Cadherin domain signature.	PCD15_MOUSE	140-150 502-512 710-720 1137-1147	1	B:114-124 - - -

(no "Exon" information available for 4AXW)

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:208
 aligned with CAD23_MOUSE | Q99PF4 from UniProtKB/Swiss-Prot  Length:3354

    Alignment length:208
                                    32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222        
          CAD23_MOUSE    23 GQVNRLPFFTNHFFDTYLLISEDTPVGSSVTQLLARDMDNDPLVFGVSGEEASRFFAVEPDTGVVWLRQPLDRETKSEFTVEFSVSDHQGVITRKVNIQVGDVNDNAPTFHNQPYSVRIPENTPVGTPIFIVNATDPDLGAGGSVLYSFQPPSPFFAIDSARGIVTVIQELDYEVTQAYQLTVNATDQDKTRPLSTLANLAIIITDMQ 230
               SCOP domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .......ee.hhhhhh.eeee.......eeee..ee.......eeeeehhhhhhheee.....eeee..........eeeeeeeee....eeeeeeeeeee.......ee....eeeeee.......eeee..ee...hhhhhh.eeee......eee.....eeee..........eeeeeeeee........eeeeeeeeeee... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------V- SAPs(SNPs)
                PROSITE (1) -------------------CADHERIN_2  PDB: A:20-110 UniProt: 42-132                                                  CADHERIN_2  PDB: A:111-206 UniProt: 133-236                                                        PROSITE (1)
                PROSITE (2) -------------------------------------------------------------------------------------------------CADHERIN_1 ---------------------------------------------------------------------------------------------------- PROSITE (2)
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 4axw A   1 MQVNRLPFFTNHFFDTYLLISEDTPVGSSVTQLLARDMDNDPLVFGVSGEEASRFFAVEPDTGVVWLRQPLDRETKSEFTVEFSVSDHQGVITRKVNIQVGDVNDNAPTFHNQPYSVRIPENTPVGTPIFIVNATDPDLGAGGSVLYSFQPPSPFFAIDSARGIVTVIQELDYEVTQAYQLTVNATDQDKTRPLSTLANLAIIITDLE 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:236
 aligned with PCD15_MOUSE | Q99PJ1 from UniProtKB/Swiss-Prot  Length:1943

    Alignment length:236
                                    36        46        56        66        76        86        96       106       116       126       136       146       156       166       176       186       196       206       216       226       236       246       256      
          PCD15_MOUSE    27 QYDDDWQYEDCKLARGGPPATIVAIDEESRNGTILVDNMLIKGTAGGPDPTIELSLKDNVDYWVLLDPVKQMLFLNSTGRVLDRDPPMNIHSIVVQVQCVNKKVGTVIYHEVRIVVRDRNDNSPTFKHESYYATVNELTPVGTTIFTGFSGDNGATDIDDGPNGQIEYVIQYNPEDPTSNDTFEIPLMLTGNVVLRKRLNYEDKTRYYVIIQANDRAQNLNERRTTTTTLTVDVLD 262
               SCOP domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..hhhhhhh...........eeeeee.......eee...............eeeeee.hhhh.eeee....eeee................eeeeeeeeee.....eeeeeeeeeee.......ee....eeeeee.......eee........ee...hhhhhh.eeeee......hhhhhee........eee..........eeeeeeeee....hhhhh.eeeeeeeeeee. Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (2) -----------------------------------------------------------------------------------------------------------------CADHERIN_1 --CADHERIN_2  PDB: B:127-233 UniProt: 153-270                                                                    PROSITE (2)
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 4axw B   1 QYDDDWQYEDCKLARGGPPATIVAIDEESRNGTILVDNMLIKGTAGGPDPTIELSLKDNVDYWVLLDPVKQMLFLNSTGRVLDRDPPMNIHSIVVQVQCVNKKVGTVIYHEVRIVVRDRNDNSPTFKHESYYATVNELTPVGTTIFTGFSGDNGATDIDDGPNGQIEYVIQYNPEDPTSNDTFEIPLMLTGNVVLRKRLNYEDKTRYYVIIQANDRAQNLNERRTTTTTLTVDLEH 236
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230

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 4AXW)

(no "CATH Domain" information available for 4AXW)

(no "Pfam Domain" information available for 4AXW)

Asymmetric/Biological Unit(hide GO term definitions)

Chain A (CAD23_MOUSE | Q99PF4)

molecular function
	GO:0005509	calcium ion binding	Interacting selectively and non-covalently with calcium ions (Ca2+).
	GO:0046872	metal ion binding	Interacting selectively and non-covalently with any metal ion.
	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).
biological process
	GO:0042491	auditory receptor cell differentiation	The process in which a relatively unspecialized cell acquires specialized features of an auditory hair cell.
	GO:0060088	auditory receptor cell stereocilium organization	A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of a stereocilium. A stereocilium is an actin-based protrusion from the apical surface of auditory hair cells.
	GO:0006816	calcium ion transport	The directed movement of calcium (Ca) ions into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
	GO:0016339	calcium-dependent cell-cell adhesion via plasma membrane cell adhesion molecules	The attachment of one cell to another cell via adhesion molecules that require the presence of calcium for the interaction.
	GO:0007155	cell adhesion	The attachment of a cell, either to another cell or to an underlying substrate such as the extracellular matrix, via cell adhesion molecules.
	GO:0050957	equilibrioception	The series of events required for an organism to receive an orientational stimulus, convert it to a molecular signal, and recognize and characterize the signal. Equilibrioception refers to a combination of processes by which an organism can perceive its orientation with respect to gravity. In animals, stimuli come from labyrinth system of the inner ears, monitoring the direction of motion; visual stimuli, with information on orientation and motion; pressure receptors, which tell the organism which body surfaces are in contact with the ground; and proprioceptive cues, which report which parts of the body are in motion.
	GO:0007156	homophilic cell adhesion via plasma membrane adhesion molecules	The attachment of a plasma membrane adhesion molecule in one cell to an identical molecule in an adjacent cell.
	GO:0048839	inner ear development	The process whose specific outcome is the progression of the inner ear over time, from its formation to the mature structure.
	GO:0042472	inner ear morphogenesis	The process in which the anatomical structures of the inner ear are generated and organized. The inner ear is the structure in vertebrates that contains the organs of balance and hearing. It consists of soft hollow sensory structures (the membranous labyrinth) containing fluid (endolymph) surrounded by fluid (perilymph) and encased in a bony cavity (the bony labyrinth). It consists of two chambers, the sacculus and utriculus, from which arise the cochlea and semicircular canals respectively.
	GO:0060122	inner ear receptor stereocilium organization	A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of a stereocilium. A stereocilium is an actin-based protrusion from the apical surface of inner ear receptor cells.
	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:0045494	photoreceptor cell maintenance	Any process preventing the degeneration of the photoreceptor, a specialized cell type that is sensitive to light.
	GO:0048563	post-embryonic animal organ morphogenesis	Morphogenesis, during the post-embryonic phase, of an animal tissue or tissues that work together to perform a specific function or functions. Morphogenesis pertains to process in which anatomical structures are generated and organized. Organs are commonly observed as visibly distinct structures, but may also exist as loosely associated clusters of cells that work together to perform a specific function or functions.
	GO:0051480	regulation of cytosolic calcium ion concentration	Any process involved in the maintenance of an internal steady state of calcium ions within the cytosol of a cell or between the cytosol and its surroundings.
	GO:0050953	sensory perception of light stimulus	The series of events required for an organism to receive a sensory light stimulus, convert it to a molecular signal, and recognize and characterize the signal. This is a neurological process.
	GO:0007605	sensory perception of sound	The series of events required for an organism to receive an auditory stimulus, convert it to a molecular signal, and recognize and characterize the signal. Sonic stimuli are detected in the form of vibrations and are processed to form a sound.
cellular component
	GO:0005813	centrosome	A structure comprised of a core structure (in most organisms, a pair of centrioles) and peripheral material from which a microtubule-based structure, such as a spindle apparatus, is organized. Centrosomes occur close to the nucleus during interphase in many eukaryotic cells, though in animal cells it changes continually during the cell-division cycle.
	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:0060091	kinocilium	A nonmotile primary cilium that is found at the apical surface of auditory receptor cells. The kinocilium is surrounded by actin-based stereocilia.
	GO:0016020	membrane	A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
	GO:0001917	photoreceptor inner segment	The inner segment of a vertebrate photoreceptor containing mitochondria, ribosomes and membranes where opsin molecules are assembled and passed to be part of the outer segment discs.
	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:0032420	stereocilium	An actin-based protrusion from the apical surface of auditory and vestibular hair cells and of neuromast cells. These protrusions are supported by a bundle of cross-linked actin filaments (an actin cable), oriented such that the plus (barbed) ends are at the tip of the protrusion, capped by a tip complex which bridges to the plasma. Bundles of stereocilia act as mechanosensory organelles.
	GO:0032426	stereocilium tip	A distinct compartment at the tip of a stereocilium, distal to the site of attachment to the apical cell surface. It consists of a dense matrix bridging the barbed ends of the stereocilium actin filaments with the overlying plasma membrane, is dynamic compared to the shaft, and is required for stereocilium elongation.
	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 (PCD15_MOUSE | Q99PJ1)

molecular function
	GO:0005509	calcium ion binding	Interacting selectively and non-covalently with calcium ions (Ca2+).
	GO:0047485	protein N-terminus binding	Interacting selectively and non-covalently with a protein N-terminus, the end of any peptide chain at which the 2-amino (or 2-imino) function of a constituent amino acid is not attached in peptide linkage to another amino-acid residue.
	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:0032403	protein complex binding	Interacting selectively and non-covalently with any protein complex (a complex of two or more proteins that may include other nonprotein molecules).
biological process
	GO:0051017	actin filament bundle assembly	The assembly of actin filament bundles; actin filaments are on the same axis but may be oriented with the same or opposite polarities and may be packed with different levels of tightness.
	GO:0007015	actin filament organization	A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of cytoskeletal structures comprising actin filaments. Includes processes that control the spatial distribution of actin filaments, such as organizing filaments into meshworks, bundles, or other structures, as by cross-linking.
	GO:0007628	adult walking behavior	The behavior of an adult relating to the progression of that organism along the ground by the process of lifting and setting down each leg.
	GO:0042491	auditory receptor cell differentiation	The process in which a relatively unspecialized cell acquires specialized features of an auditory hair cell.
	GO:0060088	auditory receptor cell stereocilium organization	A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of a stereocilium. A stereocilium is an actin-based protrusion from the apical surface of auditory hair cells.
	GO:0007155	cell adhesion	The attachment of a cell, either to another cell or to an underlying substrate such as the extracellular matrix, via cell adhesion molecules.
	GO:0050973	detection of mechanical stimulus involved in equilibrioception	The series of events involved in equilibrioception in which a mechanical stimulus is received and converted into a molecular signal. During equilibrioception, mechanical stimuli may be in the form of input from pressure receptors or from the labyrinth system of the inner ears.
	GO:0050910	detection of mechanical stimulus involved in sensory perception of sound	The series of events involved in the perception of sound vibration in which the vibration is received and converted into a molecular signal.
	GO:0050957	equilibrioception	The series of events required for an organism to receive an orientational stimulus, convert it to a molecular signal, and recognize and characterize the signal. Equilibrioception refers to a combination of processes by which an organism can perceive its orientation with respect to gravity. In animals, stimuli come from labyrinth system of the inner ears, monitoring the direction of motion; visual stimuli, with information on orientation and motion; pressure receptors, which tell the organism which body surfaces are in contact with the ground; and proprioceptive cues, which report which parts of the body are in motion.
	GO:0007156	homophilic cell adhesion via plasma membrane adhesion molecules	The attachment of a plasma membrane adhesion molecule in one cell to an identical molecule in an adjacent cell.
	GO:0048839	inner ear development	The process whose specific outcome is the progression of the inner ear over time, from its formation to the mature structure.
	GO:0060122	inner ear receptor stereocilium organization	A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of a stereocilium. A stereocilium is an actin-based protrusion from the apical surface of inner ear receptor cells.
	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:0002009	morphogenesis of an epithelium	The process in which the anatomical structures of epithelia are generated and organized. An epithelium consists of closely packed cells arranged in one or more layers, that covers the outer surfaces of the body or lines any internal cavity or tube.
	GO:0035264	multicellular organism growth	The increase in size or mass of an entire multicellular organism, as opposed to cell growth.
	GO:0045494	photoreceptor cell maintenance	Any process preventing the degeneration of the photoreceptor, a specialized cell type that is sensitive to light.
	GO:0051592	response to calcium ion	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 calcium ion stimulus.
	GO:0060013	righting reflex	A reflex process in which an animal immediately tries to turn over after being placed in a supine position.
	GO:0050953	sensory perception of light stimulus	The series of events required for an organism to receive a sensory light stimulus, convert it to a molecular signal, and recognize and characterize the signal. This is a neurological process.
	GO:0007605	sensory perception of sound	The series of events required for an organism to receive an auditory stimulus, convert it to a molecular signal, and recognize and characterize the signal. Sonic stimuli are detected in the form of vibrations and are processed to form a sound.
	GO:0001964	startle response	An action or movement due to the application of a sudden unexpected stimulus.
	GO:0007601	visual perception	The series of events required for an organism to receive a visual stimulus, convert it to a molecular signal, and recognize and characterize the signal. Visual stimuli are detected in the form of photons and are processed to form an image.
cellular component
	GO:0005737	cytoplasm	All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
	GO:0070062	extracellular exosome	A vesicle that is released into the extracellular region by fusion of the limiting endosomal membrane of a multivesicular body with the plasma membrane. Extracellular exosomes, also simply called exosomes, have a diameter of about 40-100 nm.
	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.
	GO:0005615	extracellular space	That part of a multicellular organism outside the cells proper, usually taken to be outside the plasma membranes, and occupied by fluid.
	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:0001750	photoreceptor outer segment	The outer segment of a vertebrate photoreceptor that contains discs of photoreceptive membranes.
	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:0032420	stereocilium	An actin-based protrusion from the apical surface of auditory and vestibular hair cells and of neuromast cells. These protrusions are supported by a bundle of cross-linked actin filaments (an actin cable), oriented such that the plus (barbed) ends are at the tip of the protrusion, capped by a tip complex which bridges to the plasma. Bundles of stereocilia act as mechanosensory organelles.
	GO:0032421	stereocilium bundle	A bundle of cross-linked stereocilia, arranged around a kinocilium on the apical surface of a sensory hair cell (e.g. a neuromast, auditory or vestibular hair cell). Stereocilium bundles act as mechanosensory organelles by responding to fluid motion or fluid pressure changes.
	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
	Complete Structure
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	Ligands, Modified Residues, Ions
		CA	[ RasMol \| Jena3D ]	+environment [ RasMol \| Jena3D ]
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	Cis Peptide Bonds
		Gln A:113 - Pro A:114	[ RasMol ]
		Gln A:150 - Pro A:151	[ RasMol ]
		Pro B:86 - Pro B:87	[ RasMol ]

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	4axw
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		Orientation in Membranes	:	OPM
		Protein Surface	:	SURFACE
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	CAD23_MOUSE \| Q99PF4
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	PCD15_MOUSE \| Q99PJ1
		Comparative Protein Structure Models	:	ModBase
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		Protein-protein Interaction	:	DIP
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		Interatomic Contacts of Structural Units	:	CSU
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	CAD23_MOUSE \| Q99PF4
		Protein Disorder Prediction	:	DisEMBL \| FoldIndex \| GLOBPLOT (for more information see DisProt)
	PCD15_MOUSE \| Q99PJ1
		Protein Disorder Prediction	:	DisEMBL \| FoldIndex \| GLOBPLOT (for more information see DisProt)

2wbx	CRYSTAL STRUCTURE OF MOUSE CADHERIN-23 EC1
2wcp	CRYSTAL STRUCTURE OF MOUSE CADHERIN-23 EC1-2
2wd0	CRYSTAL STRUCTURE OF NONSYNDROMIC DEAFNESS (DFNB12) ASSOCIATED MUTANT D124G OF MOUSE CADHERIN-23 EC1-2
2whv	CRYSTAL STRUCTURE OF MOUSE CADHERIN-23 EC1-2 (ALL CATION BINDING SITES OCCUPIED BY CALCIUM)
4apx	CRYSTAL STRUCTURE OF MOUSE CADHERIN-23 EC1-2 AND PROTOCADHERIN-15 EC1-2 FORM I
4aq8	CRYSTAL STRUCTURE OF MOUSE CADHERIN-23 EC1-2 AND PROTOCADHERIN-15 EC1-2 FORM II
4aqa	CRYSTAL STRUCTURE OF DEAFNESS ASSOCIATED MUTANT MOUSE CADHERIN-23 EC1-2D124G AND PROTOCADHERIN-15 EC1-2 FORM I
4aqe	CRYSTAL STRUCTURE OF DEAFNESS ASSOCIATED MUTANT MOUSE CADHERIN-23 EC1-2S70P AND PROTOCADHERIN-15 EC1-2 FORM I

Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (6, 12)

Sites (12, 12)

SS Bonds (1, 1)

Cis Peptide Bonds (3, 3)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (1, 1)

PROSITE Motifs (2, 5)

Exons (0, 0)

Sequences/Alignments

Classification and Annotation

SCOP Domains (0, 0)

CATH Domains (0, 0)

Pfam Domains (0, 0)

Gene Ontology (47, 65)

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Databases

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Related Entries

Entries Sharing at Least One Protein Chain (UniProt ID)

Related Entries Specified in the PDB File