SAXSdb — 4uqq

▼

1. Protein Identity and Related Structures Protein Identity & Related Structures

GLUTAMATE RECEPTOR IONOTROPIC, KAINATE 2

RATTUS NORVEGICUS

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 4	GLUTAMIC ACID × 4	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	GRIK2_RAT
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–877； UniProt 32–908 Author chain B； PDBConstruct 1–877； UniProt 32–908 Author chain C； PDBConstruct 1–877； UniProt 32–908 Author chain D； PDBConstruct 1–877； UniProt 32–908

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

▼

2. Structure Basics 2. Structure Basics

Entry ID entry_id	4uqq
Deposition date deposition_date	2014-06-24
Structure title title	Electron density map of GluK2 desensitized state in complex with 2S,4R-4-methylglutamate
Keywords keywords	TRANSPORT PROTEIN, MEMBRANE PROTEIN, ION CHANNEL; TRANSPORT PROTEIN
Experimental Method method	ELECTRON MICROSCOPY

▼

3. Official assembly/model SAXS Official SAXS Profiles

This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.

4uqq__assembly_1__model_1

Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

4uqq__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

4uqq__assembly_1__model_1 | P(r) · Pending

P(r) will be calculated and displayed separately for the same assembly/model.

Rg（Guinier）	55.74 Å
Rg (electron density)	55.64 Å
Total Rg	55.69 Å
Atom count	22081
Residues	2762
Excluded volume	395820 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`4uqq__assembly_1__model_1`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download

▶

4. Crystallography and Experiment 4. Crystallography & Experiment

▶

5. Entities and Polymers Entities & Polymers (2)

Entity 1 Entity 1 polymer

Description description	GLUTAMATE RECEPTOR IONOTROPIC, KAINATE 2
Molecular weight formula_weight	99549.3 kDa
Mutation mutation	YES
Source method src_method	man
Copy count entity_count	4

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D
Atom count atom_count	22081

TTHVLRFGGIFEYVESGPMGAEELAFRFAVNTINRNRTLLPNTTLTYDTQKINLYDSFEASKKACDQLSLGVAAIFGPSHSSSANAVQSICNALGVPHIQTRWKHQVSDNKDSFYVSLYPDFSSLSRAILDLVQFFKWKTVTVVYDDSTGLIRLQELIKAPSRYNLRLKIRQLPADTKDAKPLLKEMKRGKEFHVIFDCSHEMAAGILKQALAMGMMTEYYHYIFTTLDLFALDVEPYRYSGVNMTGFRILNTENTQVSSIIEKWSMERLQAPPKPDSGLLDGFMTTDAALMYDAVHVVSVAVQQFPQMTVSSLQCNRHKPWRFGTRFMSLIKEAHWEGLTGRITFNKTNGLRTDFDLDVISLKEEGLEKIGTWDPASGLNMTESQKGKPANITDSLSNRSLIVTTILEEPYVLFKKSDKPLYGNDRFEGYCIDLLRELSTILGFTYEIRLVEDGKYGAQDDVNGQWNGMVRELIDHKADLAVAPLAITYVREKVIDFSKPFMTLGISILYRKPNGTNPGVFSFLNPLSPDIWMYVLLACLGVSVVLFVIARFSPYEWYNPHPSNPDSDVVENNFTLLNSFWFGVGALMQQGSELMPKALSTRIVGGIWWFFTLIIISSYTANLAAFLTVERMESPIDSADDLAKQTKIEYGAVEDGATMTFFKKSKISTYDKMWAFMSSRRQSVLVKSNEEGIQRVLTSDYAFLMESTTIEFVTQRNCNLTQIGGLIDSKGYGVGTPMGSPYRDKITIAILQLQEEGKLHMMKEKWWRGNGCPEEESKEASALGVQNIGGIFIVLAAGLVLSVFVAVGEFLYKSKKNAQLEKRSFCSAMVEELRMSLKCQRRLKHKPQAPVIVKTEEVINMHTFNDRRLPGKETMAGLVPR

Source Source

Source organism organism	RATTUS NORVEGICUS
Common name common_name	NORWAY RAT
NCBI taxonomy ID ncbi_taxonomy_id	10116
Host organism host_organism	SPODOPTERA FRUGIPERDA

Entity 2 Entity 2 non-polymer

Description description	GLUTAMIC ACID
Molecular weight formula_weight	147.1 kDa
Source method src_method	syn
Copy count entity_count	4

▶

Unit-cell length a length_a	1.000 Å
Unit-cell length b length_b	1.000 Å
Unit-cell length c length_c	1.000 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	1

Space group space_group	P 1
Space-group number int_tables_number	1
Crystal system crystal_system	—

Resolution resolution	7.600 Å
Low-resolution limit resolution_low	— Å
R factor r_factor	—
R_work r_work	—
R_free r_free	—

Resolution resolution	7.60 Å
Resolution测定Method resolution_method	—
颗粒数 num_particles	21360

Electron density map of GluK2 desensitized state in complex with 2S,4R-4-methylglutamate

1. Protein Identity and Related Structures Protein Identity & Related Structures

GLUTAMATE RECEPTOR IONOTROPIC, KAINATE 2

State in the Current Structure

Other States of the Same Protein in the Database

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

4uqq__assembly_1__model_1

4uqq__assembly_1__model_1 | I(q)

4uqq__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

冷冻电镜 EM 3D

5. Entities and Polymers Entities & Polymers (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

7. Citations (1)

Electron density map of GluK2 desensitized state in complex with 2S,4R-4-methylglutamate

1. Protein Identity and Related Structures Protein Identity & Related Structures

GLUTAMATE RECEPTOR IONOTROPIC, KAINATE 2

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

4uqq__assembly_1__model_1

4uqq__assembly_1__model_1 | I(q)

4uqq__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

冷冻电镜 EM 3D

5. Entities and Polymers Entities & Polymers (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

7. Citations (1)