SAXSdb — 6x5q

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

Calcium/calmodulin-dependent protein kinase type II subunit alpha

Homo sapiens

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 2	Glutamate receptor 1 × 1 （P42261） GLYCEROL × 3 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	KCC2A_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–268； UniProt 7–274

Glutamate receptor 1

OrganismNot specified

UniProt P42261

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 2	Calcium/calmodulin-dependent protein kinase type II subunit alpha × 1 （Q9UQM7） GLYCEROL × 3 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	GRIA1_HUMAN
Isoform	P42261-5
PDB entities	2
Chains and sequence ranges	Author chain B； PDBConstruct 1–20； UniProt 846–865

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.

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2. Structure Basics 2. Structure Basics

Entry ID entry_id	6x5q
Deposition date deposition_date	2020-05-26
Structure title title	Cocrystal structure of human CaMKII-alpha (CAMK2A)kinase domain and GluA1
Keywords keywords	CaMKII, Kinase, Human, CAMK2A, TRANSFERASE; TRANSFERASE
Experimental Method method	X-RAY DIFFRACTION

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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.

6x5q__assembly_1__model_1

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

Download this curve (.dat)

6x5q__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

6x5q__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	20.43 Å
Rg (electron density)	19.34 Å
Total Rg	20.25 Å
Atom count	2259
Residues	284
Excluded volume	40450 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`6x5q__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download

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4. Crystallography and Experiment 4. Crystallography & Experiment

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5. Entities and Polymers Entities & Polymers (4)

Entity 1 Entity 1 polymer

Description description	Calcium/calmodulin-dependent protein kinase type II subunit alpha
Molecular weight formula_weight	30548.1 kDa
EC 编号 ec_number	2.7.11.17
Mutation mutation	D135N, Q223K
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	2355

TRFTEEYQLFEELGKGAFSVVRRCVKVLAGQEYAAKIINTKKLSARDHQKLEREARICRLLKHPNIVRLHDSISEEGHHYLIFDLVTGGELFEDIVAREYYSEADASHCIQQILEAVLHCHQMGVVHRNLKPENLLLASKLKGAAVKLADFGLAIEVEGEQQAWFGFAGTPGYLSPEVLRKDPYGKPVDLWACGVILYILLVGYPPFWDEDQHRLYKQIKAGAYDFPSPEWDTVTPEAKDLINKMLTINPSKRITAAEALKHPWISHR

Source Source

Source organism organism	Homo sapiens
Common name common_name	Human
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	Escherichia coli BL21(DE3)

Entity 2 Entity 2 polymer

Description description	Glutamate receptor 1
Molecular weight formula_weight	2323.8 kDa
Source method src_method	syn
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	B

SKRMKGFCLIPQQSINEAIR

Entity 3 Entity 3 non-polymer

Description description	GLYCEROL
Molecular weight formula_weight	92.1 kDa
Source method src_method	syn
Copy count entity_count	3

Entity 4 Entity 4 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	96

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Unit-cell length a length_a	42.629 Å
Unit-cell length b length_b	57.456 Å
Unit-cell length c length_c	107.707 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	4

Space group space_group	P 21 21 21
Space-group number int_tables_number	19
Crystal system crystal_system	—

Resolution resolution	2.140 Å
Low-resolution limit resolution_low	39.320 Å
R factor r_factor	0.1915
R_work r_work	0.1893
R_free r_free	0.2350

Cocrystal structure of human CaMKII-alpha (CAMK2A)kinase domain and GluA1

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

Calcium/calmodulin-dependent protein kinase type II subunit alpha

State in the Current Structure

Other States of the Same Protein in the Database

Glutamate receptor 1

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

6x5q__assembly_1__model_1

6x5q__assembly_1__model_1 | I(q)

6x5q__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (4)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

7. Citations (1)

Cocrystal structure of human CaMKII-alpha (CAMK2A)kinase domain and GluA1

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

Calcium/calmodulin-dependent protein kinase type II subunit alpha

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Glutamate receptor 1

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

6x5q__assembly_1__model_1

6x5q__assembly_1__model_1 | I(q)

6x5q__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (4)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

7. Citations (1)