3U94 - JenaLib

Asymmetric Unit (Jmol Viewer)

Asym. Unit - sites (Jmol Viewer)

Biological Unit 1 (Jmol Viewer)

Biol. Unit 1 - sites (Jmol Viewer)

Biological Unit 2 (Jmol Viewer)

Biological Unit 3 (Jmol Viewer)

Biological Unit 4 (Jmol Viewer)

Biological Unit 5 (Jmol Viewer)

Title :   CRYSTAL STRUCTURE OF THE GLUK3 LIGAND BINDING DOMAIN COMPLEX WITH GLUTAMATE AND ZINC: P21212 FORM

Authors :   J. Kumar, M. L. Mayer

Date :   17 Oct 11 (Deposition) - 26 Sep 12 (Release) - 19 Dec 12 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   1.96

Chains :   Asym. Unit : A,B,C,D
Biol. Unit 1: A,B,C,D  (1x)
Biol. Unit 2: A  (1x)
Biol. Unit 3: B  (1x)
Biol. Unit 4: C  (1x)
Biol. Unit 5: D  (1x)

Keywords :   Ion Channel, Membrane Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   J. Veran, J. Kumar, P. S. Pinheiro, A. Athane, M. L. Mayer, D. Perrais, C. Mulle
Zinc Potentiates Gluk3 Glutamate Receptor Function By Stabilizing The Ligand Binding Domain Dimer Interface.
Neuron V. 76 565 2012
PubMed-ID: 23141068 | Reference-DOI: 10.1016/J.NEURON.2012.08.027

Molecule 1 - GLUTAMATE RECEPTOR, IONOTROPIC KAINATE 3
	Chains	:	A, B, C, D
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Plasmid	:	PET22 MODIFIED
	Expression System Strain	:	ORIGAMI B(DE3)
	Expression System Taxid	:	562
	Expression System Vector Type	:	PLASMID
	Fragment	:	UNP RESIDUES 433-546 AND 669-807
	Gene	:	GRIK3
	Organism Scientific	:	RATTUS NORVEGICUS
	Organism Taxid	:	10116

		1	2	3	4
Asymmetric Unit	:	A	B	C	D
Biological Unit 1 (1x)	:	A	B	C	D
Biological Unit 2 (1x)	:	A
Biological Unit 3 (1x)	:		B
Biological Unit 4 (1x)	:			C
Biological Unit 5 (1x)	:				D

Summary Information (see also Sequences/Alignments below)

Asymmetric Unit (4, 20)

No.	Name	Count	Type	Full Name
1	CL	1	Ligand/Ion	CHLORIDE ION
2	GLU	4	Mod. Amino Acid	GLUTAMIC ACID
3	SO4	2	Ligand/Ion	SULFATE ION
4	ZN	13	Ligand/Ion	ZINC ION

Biological Unit 1 (2, 6)

No.	Name	Count	Type	Full Name
1	CL	-1	Ligand/Ion	CHLORIDE ION
2	GLU	4	Mod. Amino Acid	GLUTAMIC ACID
3	SO4	2	Ligand/Ion	SULFATE ION
4	ZN	-1	Ligand/Ion	ZINC ION

Biological Unit 2 (1, 1)

No.	Name	Count	Type	Full Name
1	CL	-1	Ligand/Ion	CHLORIDE ION
2	GLU	1	Mod. Amino Acid	GLUTAMIC ACID
3	SO4	-1	Ligand/Ion	SULFATE ION
4	ZN	-1	Ligand/Ion	ZINC ION

Biological Unit 3 (2, 2)

No.	Name	Count	Type	Full Name
1	CL	-1	Ligand/Ion	CHLORIDE ION
2	GLU	1	Mod. Amino Acid	GLUTAMIC ACID
3	SO4	1	Ligand/Ion	SULFATE ION
4	ZN	-1	Ligand/Ion	ZINC ION

Biological Unit 4 (2, 2)

No.	Name	Count	Type	Full Name
1	CL	-1	Ligand/Ion	CHLORIDE ION
2	GLU	1	Mod. Amino Acid	GLUTAMIC ACID
3	SO4	1	Ligand/Ion	SULFATE ION
4	ZN	-1	Ligand/Ion	ZINC ION

Biological Unit 5 (1, 1)

No.	Name	Count	Type	Full Name
1	CL	-1	Ligand/Ion	CHLORIDE ION
2	GLU	1	Mod. Amino Acid	GLUTAMIC ACID
3	SO4	-1	Ligand/Ion	SULFATE ION
4	ZN	-1	Ligand/Ion	ZINC ION

Asymmetric Unit (20, 20)

No.	Name	Evidence	Residues	Description
01	AC1	SOFTWARE	TYR A:61 , PRO A:88 , LEU A:89 , THR A:90 , ARG A:95 , GLY A:140 , ALA A:141 , THR A:142 , GLU A:189 , TYR A:215 , HOH A:265 , HOH A:290 , HOH A:291 , HOH A:302	BINDING SITE FOR RESIDUE GLU A 258
02	AC2	SOFTWARE	TYR B:61 , PRO B:88 , LEU B:89 , THR B:90 , ARG B:95 , GLY B:140 , ALA B:141 , THR B:142 , GLU B:189 , HOH B:281 , HOH B:283 , HOH B:300 , HOH B:330	BINDING SITE FOR RESIDUE GLU B 258
03	AC3	SOFTWARE	TYR C:61 , PRO C:88 , THR C:90 , ARG C:95 , GLY C:140 , ALA C:141 , THR C:142 , GLU C:189 , HOH C:268 , HOH C:271 , HOH C:296 , HOH C:324	BINDING SITE FOR RESIDUE GLU C 258
04	AC4	SOFTWARE	TYR D:61 , PRO D:88 , THR D:90 , ARG D:95 , GLY D:140 , ALA D:141 , THR D:142 , GLU D:189 , HOH D:273 , HOH D:274 , HOH D:278 , HOH D:292	BINDING SITE FOR RESIDUE GLU D 258
05	AC5	SOFTWARE	HIS A:243 , GLU A:247 , GLU B:194	BINDING SITE FOR RESIDUE ZN A 259
06	AC6	SOFTWARE	GLU A:194 , LYS A:246 , HIS B:243 , GLU B:247 , HOH B:297	BINDING SITE FOR RESIDUE ZN B 259
07	AC7	SOFTWARE	HIS B:93 , GLU B:96 , ASP C:240 , HIS C:243	BINDING SITE FOR RESIDUE ZN C 259
08	AC8	SOFTWARE	HIS A:93 , GLU A:96 , ASP D:240 , HIS D:243	BINDING SITE FOR RESIDUE ZN D 259
09	AC9	SOFTWARE	GLU B:238 , GLU D:238 , HOH D:650	BINDING SITE FOR RESIDUE ZN D 260
10	BC1	SOFTWARE	HIS A:80 , HIS C:93	BINDING SITE FOR RESIDUE ZN A 260
11	BC2	SOFTWARE	HIS A:45 , HOH A:688 , HOH A:689	BINDING SITE FOR RESIDUE ZN A 261
12	BC3	SOFTWARE	GLU A:238 , GLU C:238	BINDING SITE FOR RESIDUE ZN C 260
13	BC4	SOFTWARE	HIS B:80 , HOH B:298 , HOH B:651 , HIS D:93 , LYS D:97	BINDING SITE FOR RESIDUE ZN B 260
14	BC5	SOFTWARE	GLU C:42 , LYS C:241 , HOH C:652 , HIS D:45	BINDING SITE FOR RESIDUE ZN C 261
15	BC6	SOFTWARE	HIS C:45 , HOH C:653 , GLU D:42 , LYS D:241	BINDING SITE FOR RESIDUE ZN D 261
16	BC7	SOFTWARE	HIS C:80	BINDING SITE FOR RESIDUE ZN C 262
17	BC8	SOFTWARE	HIS D:80 , HOH D:681	BINDING SITE FOR RESIDUE ZN D 262
18	BC9	SOFTWARE	ARG D:20 , ARG D:24	BINDING SITE FOR RESIDUE CL D 263
19	CC1	SOFTWARE	HIS B:45 , HOH B:630	BINDING SITE FOR RESIDUE SO4 B 261
20	CC2	SOFTWARE	ARG C:20 , SER C:22	BINDING SITE FOR RESIDUE SO4 C 263

Asymmetric Unit

No.	Residues
1	A:201	-	A:255
2	B:201	-	B:255
3	C:201	-	C:255
4	D:201	-	D:255

Asymmetric Unit

No.	Residues
1	Glu A:14	-	Pro A:15
2	Glu B:14	-	Pro B:15
3	Arg B:251	-	Gly B:252
4	Glu C:14	-	Pro C:15
5	Arg C:251	-	Gly C:252
6	Glu D:14	-	Pro D:15

(no "SAP(SNP)/Variant" information available for 3U94)

(no "PROSITE Motif" information available for 3U94)

(no "Exon" information available for 3U94)

Asymmetric 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:255
 aligned with GRIK3_RAT | P42264 from UniProtKB/Swiss-Prot  Length:919

    Alignment length:377
                                   442       452       462       472       482       492       502       512       522       532       542       552       562       572       582       592       602       612       622       632       642       652       662       672       682       692       702       712       722       732       742       752       762       772       782       792       802       
            GRIK3_RAT   433 NRSLIVTTLLEEPFVMFRKSDRTLYGNDRFEGYCIDLLKELAHILGFSYEIRLVEDGKYGAQDDKGQWNGMVKELIDHKADLAVAPLTITHVREKAIDFSKPFMTLGVSILYRKPNGTNPSVFSFLNPLSPDIWMYVLLAYLGVSCVLFVIARFSPYEWYDAHPCNPGSEVVENNFTLLNSFWFGMGSLMQQGSELMPKALSTRIIGGIWWFFTLIIISSYTANLAAFLTVERMESPIDSADDLAKQTKIEYGAVKDGATMTFFKKSKISTFEKMWAFMSSKPSALVKNNEEGIQRTLTADYALLMESTTIEYITQRNCNLTQIGGLIDSKGYGIGTPMGSPYRDKITIAILQLQEEDKLHIMKEKWWRGSGCPEEE 809
               SCOP domains d3u94a_ A: automated matches                                                                                                                                                                                                                                                                                                                                                              SCOP domains
               CATH domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeee.......ee.......hhhh.eehhhhhhhhhhhhhhh..eeeee...............hhhhhhhhh....ee......hhhhhh.eee....eee.eeeeee.--..----------------------------------------------------------------------------------------------------------------------...hhhhhhh....eeeee..hhhhhhhhhh.hhhhhhhhhhhhhh...ee.hhhhhhhhhhhh.eeeeeehhhhhhhhhhh..eeee......eee..eee...hhhhhhhhhhhhhhhhhhhhhhhhhhhh.....--. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3u94 A   3 NRSLIVTTLLEEPFVMFRKSDRTLYGNDRFEGYCIDLLKELAHILGFSYEIRLVEDGKYGAQDDKGQWNGMVKELIDHKADLAVAPLTITHVREKAIDFSKPFMTLGVSILYRK--GT----------------------------------------------------------------------------------------------------------------------PIDSADDLAKQTKIEYGAVKDGATMTFFKKSKISTFEKMWAFMSSKPSALVKNNEEGIQRTLTADYALLMESTTIEYITQRNCNLTQIGGLIDSKGYGIGTPMGSPYRDKITIAILQLQEEDKLHIMKEKWWRGSGCP--E 258
                                    12        22        32        42        52        62        72        82        92       102       112   |  || -         -         -         -         -         -         -         -         -         -         -         -      |122       132       142       152       162       172       182       192       202       212       222       232       242       252   |  |
                                                                                                                                           116  ||                                                                                                                    119                                                                                                                                      256  |
                                                                                                                                              117|                                                                                                                                                                                                                                                                258
                                                                                                                                               118

Chain B from PDB  Type:PROTEIN  Length:254
 aligned with GRIK3_RAT | P42264 from UniProtKB/Swiss-Prot  Length:919

    Alignment length:374
                                   443       453       463       473       483       493       503       513       523       533       543       553       563       573       583       593       603       613       623       633       643       653       663       673       683       693       703       713       723       733       743       753       763       773       783       793       803    
            GRIK3_RAT   434 RSLIVTTLLEEPFVMFRKSDRTLYGNDRFEGYCIDLLKELAHILGFSYEIRLVEDGKYGAQDDKGQWNGMVKELIDHKADLAVAPLTITHVREKAIDFSKPFMTLGVSILYRKPNGTNPSVFSFLNPLSPDIWMYVLLAYLGVSCVLFVIARFSPYEWYDAHPCNPGSEVVENNFTLLNSFWFGMGSLMQQGSELMPKALSTRIIGGIWWFFTLIIISSYTANLAAFLTVERMESPIDSADDLAKQTKIEYGAVKDGATMTFFKKSKISTFEKMWAFMSSKPSALVKNNEEGIQRTLTADYALLMESTTIEYITQRNCNLTQIGGLIDSKGYGIGTPMGSPYRDKITIAILQLQEEDKLHIMKEKWWRGSGCPE 807
               SCOP domains d3u94b_ B: automated matches                                                                                                                                                                                                                                                                                                                                                           SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .eeeeee.......ee.......hhhh.eehhhhhhhhhhhhhhh.eeeeee...............hhhhhhhhh....ee......hhhhhh.eee....eee.eeeeee.--..----------------------------------------------------------------------------------------------------------------------...hhhhhhh....eee....hhhhhhhhhh.hhhhhhhhhhhhhh......hhhhhhhhhhhh.eeeeeehhhhhhhhh....eeee......eee..eee...hhhhhhhhhhhhhhhh.hhhhhhhhhhh...... Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3u94 B   4 RSLIVTTLLEEPFVMFRKSDRTLYGNDRFEGYCIDLLKELAHILGFSYEIRLVEDGKYGAQDDKGQWNGMVKELIDHKADLAVAPLTITHVREKAIDFSKPFMTLGVSILYRK--GT----------------------------------------------------------------------------------------------------------------------PIDSADDLAKQTKIEYGAVKDGATMTFFKKSKISTFEKMWAFMSSKPSALVKNNEEGIQRTLTADYALLMESTTIEYITQRNCNLTQIGGLIDSKGYGIGTPMGSPYRDKITIAILQLQEEDKLHIMKEKWWRGSGCPE 258
                                    13        23        33        43        53        63        73        83        93       103       113  |  ||  -         -         -         -         -         -         -         -         -         -         -         -     | 123       133       143       153       163       173       183       193       203       213       223       233       243       253  ||
                                                                                                                                          116  ||                                                                                                                    119                                                                                                                                      256|
                                                                                                                                             117|                                                                                                                                                                                                                                                              258
                                                                                                                                              118

Chain C from PDB  Type:PROTEIN  Length:254
 aligned with GRIK3_RAT | P42264 from UniProtKB/Swiss-Prot  Length:919

    Alignment length:374
                                   442       452       462       472       482       492       502       512       522       532       542       552       562       572       582       592       602       612       622       632       642       652       662       672       682       692       702       712       722       732       742       752       762       772       782       792       802    
            GRIK3_RAT   433 NRSLIVTTLLEEPFVMFRKSDRTLYGNDRFEGYCIDLLKELAHILGFSYEIRLVEDGKYGAQDDKGQWNGMVKELIDHKADLAVAPLTITHVREKAIDFSKPFMTLGVSILYRKPNGTNPSVFSFLNPLSPDIWMYVLLAYLGVSCVLFVIARFSPYEWYDAHPCNPGSEVVENNFTLLNSFWFGMGSLMQQGSELMPKALSTRIIGGIWWFFTLIIISSYTANLAAFLTVERMESPIDSADDLAKQTKIEYGAVKDGATMTFFKKSKISTFEKMWAFMSSKPSALVKNNEEGIQRTLTADYALLMESTTIEYITQRNCNLTQIGGLIDSKGYGIGTPMGSPYRDKITIAILQLQEEDKLHIMKEKWWRGSGCP 806
               SCOP domains d3u94c_ C: automated matches                                                                                                                                                                                                                                                                                                                                                           SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeee.......ee.......hhhh.eehhhhhhhhhhhhhhh..eeeee...............hhhhhhhhh....ee......hhhhhh.eee....eee.eeeeee.--..----------------------------------------------------------------------------------------------------------------------...hhhhhhhh...eeeee..hhhhhhhhhh.hhhhhhhhhhhhhh...ee.hhhhhhhhhhhh.eeeeeehhhhhhhhh....eeee......eee..eee....hhhhhhhhhhhhhhhhhhhhhhhhhh...... Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3u94 C   3 NRSLIVTTLLEEPFVMFRKSDRTLYGNDRFEGYCIDLLKELAHILGFSYEIRLVEDGKYGAQDDKGQWNGMVKELIDHKADLAVAPLTITHVREKAIDFSKPFMTLGVSILYRK--GT----------------------------------------------------------------------------------------------------------------------PIDSADDLAKQTKIEYGAVKDGATMTFFKKSKISTFEKMWAFMSSKPSALVKNNEEGIQRTLTADYALLMESTTIEYITQRNCNLTQIGGLIDSKGYGIGTPMGSPYRDKITIAILQLQEEDKLHIMKEKWWRGSGCE 258
                                    12        22        32        42        52        62        72        82        92       102       112   |  || -         -         -         -         -         -         -         -         -         -         -         -      |122       132       142       152       162       172       182       192       202       212       222       232       242       252  ||
                                                                                                                                           116  ||                                                                                                                    119                                                                                                                                     255|
                                                                                                                                              117|                                                                                                                                                                                                                                                             258
                                                                                                                                               118

Chain D from PDB  Type:PROTEIN  Length:255
 aligned with GRIK3_RAT | P42264 from UniProtKB/Swiss-Prot  Length:919

    Alignment length:375
                                   441       451       461       471       481       491       501       511       521       531       541       551       561       571       581       591       601       611       621       631       641       651       661       671       681       691       701       711       721       731       741       751       761       771       781       791       801     
            GRIK3_RAT   432 TNRSLIVTTLLEEPFVMFRKSDRTLYGNDRFEGYCIDLLKELAHILGFSYEIRLVEDGKYGAQDDKGQWNGMVKELIDHKADLAVAPLTITHVREKAIDFSKPFMTLGVSILYRKPNGTNPSVFSFLNPLSPDIWMYVLLAYLGVSCVLFVIARFSPYEWYDAHPCNPGSEVVENNFTLLNSFWFGMGSLMQQGSELMPKALSTRIIGGIWWFFTLIIISSYTANLAAFLTVERMESPIDSADDLAKQTKIEYGAVKDGATMTFFKKSKISTFEKMWAFMSSKPSALVKNNEEGIQRTLTADYALLMESTTIEYITQRNCNLTQIGGLIDSKGYGIGTPMGSPYRDKITIAILQLQEEDKLHIMKEKWWRGSGCP 806
               SCOP domains d3u94d_ D: automated matches                                                                                                                                                                                                                                                                                                                                                            SCOP domains
               CATH domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....eeeee.......ee.......hhhh.eehhhhhhhhhhhhhhh..eeeee...............hhhhhhhhh....ee......hhhhhh.eee....eee.eeeeee.--..----------------------------------------------------------------------------------------------------------------------...hhhhhhhh...eee....hhhhhhhhhh.hhhhhhhhhhhhhh......hhhhhhhhhhhh.eeeeeehhhhhhhhh....eeee......eee..eee....hhhhhhhhhhhhhhhhhhhhhhhhhh...... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3u94 D   2 SNRSLIVTTLLEEPFVMFRKSDRTLYGNDRFEGYCIDLLKELAHILGFSYEIRLVEDGKYGAQDDKGQWNGMVKELIDHKADLAVAPLTITHVREKAIDFSKPFMTLGVSILYRK--GT----------------------------------------------------------------------------------------------------------------------PIDSADDLAKQTKIEYGAVKDGATMTFFKKSKISTFEKMWAFMSSKPSALVKNNEEGIQRTLTADYALLMESTTIEYITQRNCNLTQIGGLIDSKGYGIGTPMGSPYRDKITIAILQLQEEDKLHIMKEKWWRGSGCE 258
                                    11        21        31        41        51        61        71        81        91       101       111    |  ||-         -         -         -         -         -         -         -         -         -         -         -       121       131       141       151       161       171       181       191       201       211       221       231       241       251   ||
                                                                                                                                            116  ||                                                                                                                    119                                                                                                                                     255|
                                                                                                                                               117|                                                                                                                                                                                                                                                             258
                                                                                                                                                118

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 '\|'

Asymmetric Unit

Classes(

)

Folds(

)

Superfamilies( (-)

)

Families(

)

Protein Domains( (-)

)

Organisms( (-)

)

Class: Alpha and beta proteins (a/b) (23833)

Fold: Periplasmic binding protein-like II (813)

Superfamily: Periplasmic binding protein-like II (813)

Family: automated matches (267)

Protein domain: automated matches (267)

Norway rat (Rattus norvegicus) [TaxId: 10116] (73)

1a	d3u94a_	A:
1b	d3u94b_	B:
1c	d3u94c_	C:
1d	d3u94d_	D:

(no "CATH Domain" information available for 3U94)

(no "Pfam Domain" information available for 3U94)

Asymmetric Unit(hide GO term definitions)

Chain A,B,C,D (GRIK3_RAT | P42264)

molecular function
	GO:0005234	extracellular-glutamate-gated ion channel activity	Enables the transmembrane transfer of an ion by a channel that opens when extracellular glutamate has been bound by the channel complex or one of its constituent parts.
	GO:0008066	glutamate receptor activity	Combining with glutamate and transmitting the signal from one side of the membrane to the other to initiate a change in cell activity.
	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:0004970	ionotropic glutamate receptor activity	Catalysis of the transmembrane transfer of an ion by a channel that opens when glutamate has been bound by the channel complex or one of its constituent parts.
	GO:0004872	receptor activity	Combining with an extracellular or intracellular messenger to initiate a change in cell activity.
biological process
	GO:0007268	chemical synaptic transmission	The vesicular release of classical neurotransmitter molecules from a presynapse, across a chemical synapse, the subsequent activation of neurotransmitter 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: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:0035235	ionotropic glutamate receptor signaling pathway	A series of molecular signals initiated by glutamate binding to a glutamate receptor on the surface of the target cell, followed by the movement of ions through a channel in the receptor complex. Ends with regulation of a downstream cellular process, e.g. transcription.
	GO:0051967	negative regulation of synaptic transmission, glutamatergic	Any process that stops, prevents, or reduces the frequency, rate or extent of glutamatergic synaptic transmission, the process of communication from a neuron to another neuron across a synapse using the neurotransmitter glutamate.
	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: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: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:0030424	axon	The long process of a neuron that conducts nerve impulses, usually away from the cell body to the terminals and varicosities, which are sites of storage and release of neurotransmitter.
	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:0032839	dendrite cytoplasm	All of the contents of a dendrite, excluding the surrounding plasma membrane.
	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:0043204	perikaryon	The portion of the cell soma (neuronal cell body) that excludes the nucleus.
	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.
	GO:0043195	terminal bouton	Terminal inflated portion of the axon, containing the specialized apparatus necessary to release neurotransmitters. The axon terminus is considered to be the whole region of thickening and the terminal bouton is a specialized region of it.

Asymmetric Unit
	Complete Structure
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	Cis Peptide Bonds
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		Glu B:14 - Pro B:15	[ RasMol ]
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		Glu D:14 - Pro D:15	[ RasMol ]

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	3u94
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UniProtKB/Swiss-Prot
	GRIK3_RAT \| P42264	:	3olz 3s9e 3u92 3u93 4e0w 4g8n 4igr 4mh5 4nwc 4nwd

Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (4, 20)

Sites (20, 20)

SS Bonds (4, 4)

Cis Peptide Bonds (6, 6)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (0, 0)

Exons (0, 0)

Sequences/Alignments

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SCOP Domains (1, 4)

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Pfam Domains (0, 0)

Gene Ontology (24, 24)

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Related Entries

Entries Sharing at Least One Protein Chain (UniProt ID)

Related Entries Specified in the PDB File