2f86

The Association Domain of C. elegans CaMKII

Method: X-RAY DIFFRACTION

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

Hypothetical protein K11E8.1d

Caenorhabditis elegans

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 14	water × 14	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	KCC2D_CAEEL
Isoform	O62305-4
PDB entities	1
Chains and sequence ranges	Author chain B； PDBConstruct 1–143； UniProt 340–482 Author chain D； PDBConstruct 1–143； UniProt 340–482 Author chain F； PDBConstruct 1–143； UniProt 340–482 Author chain H； PDBConstruct 1–143； UniProt 340–482 Author chain J； PDBConstruct 1–143； UniProt 340–482 Author chain L； PDBConstruct 1–143； UniProt 340–482 Author chain N； PDBConstruct 1–143； UniProt 340–482

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	2f86
Deposition date deposition_date	2005-12-01
Structure title title	The Association Domain of C. elegans CaMKII
Keywords keywords	unc-43; oligomerization domain, 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.

2f86__assembly_1__model_1

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

Download this curve (.dat)

2f86__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2f86__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	43.19 Å
Rg (electron density)	42.51 Å
Total Rg	42.99 Å
Atom count	14630
Residues	1806
Excluded volume	256010 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2f86__assembly_1__model_1`	tetradecameric （14）	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 (2)

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6. Fold Classification (SCOP + CATH) 14 domains

SCOP 2.08 (7 domains)

Domain ID domain_id	d2f86b1
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.17 — Cystatin-like
Superfamily Superfamily superfamily	d.17.4 — NTF2-like
Family Family family	d.17.4.7 — Association domain of calcium/calmodulin-dependent protein kinase type II alpha subunit, CAMK2A

Domain ID domain_id	d2f86d_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.17 — Cystatin-like
Superfamily Superfamily superfamily	d.17.4 — NTF2-like
Family Family family	d.17.4.0 — automated matches

Domain ID domain_id	d2f86f_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.17 — Cystatin-like
Superfamily Superfamily superfamily	d.17.4 — NTF2-like
Family Family family	d.17.4.0 — automated matches

Domain ID domain_id	d2f86h_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.17 — Cystatin-like
Superfamily Superfamily superfamily	d.17.4 — NTF2-like
Family Family family	d.17.4.0 — automated matches

Domain ID domain_id	d2f86j_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.17 — Cystatin-like
Superfamily Superfamily superfamily	d.17.4 — NTF2-like
Family Family family	d.17.4.0 — automated matches

Domain ID domain_id	d2f86l_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.17 — Cystatin-like
Superfamily Superfamily superfamily	d.17.4 — NTF2-like
Family Family family	d.17.4.0 — automated matches

Domain ID domain_id	d2f86n_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.17 — Cystatin-like
Superfamily Superfamily superfamily	d.17.4 — NTF2-like
Family Family family	d.17.4.0 — automated matches

CATH v4.4 (7 domains)

Domain ID domain_id	2f86B00
Class class	3 — Alpha Beta
Architecture architecture	10 — Roll
Topology topology	450 — Nuclear Transport Factor 2; Chain: A,
Homologous superfamily homologous superfamily	50 —

Domain ID domain_id	2f86D00
Class class	3 — Alpha Beta
Architecture architecture	10 — Roll
Topology topology	450 — Nuclear Transport Factor 2; Chain: A,
Homologous superfamily homologous superfamily	50 —

Domain ID domain_id	2f86F00
Class class	3 — Alpha Beta
Architecture architecture	10 — Roll
Topology topology	450 — Nuclear Transport Factor 2; Chain: A,
Homologous superfamily homologous superfamily	50 —

Domain ID domain_id	2f86H00
Class class	3 — Alpha Beta
Architecture architecture	10 — Roll
Topology topology	450 — Nuclear Transport Factor 2; Chain: A,
Homologous superfamily homologous superfamily	50 —

Domain ID domain_id	2f86J00
Class class	3 — Alpha Beta
Architecture architecture	10 — Roll
Topology topology	450 — Nuclear Transport Factor 2; Chain: A,
Homologous superfamily homologous superfamily	50 —

Domain ID domain_id	2f86L00
Class class	3 — Alpha Beta
Architecture architecture	10 — Roll
Topology topology	450 — Nuclear Transport Factor 2; Chain: A,
Homologous superfamily homologous superfamily	50 —

Domain ID domain_id	2f86N00
Class class	3 — Alpha Beta
Architecture architecture	10 — Roll
Topology topology	450 — Nuclear Transport Factor 2; Chain: A,
Homologous superfamily homologous superfamily	50 —

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Unit-cell length a length_a	70.870 Å
Unit-cell length b length_b	186.934 Å
Unit-cell length c length_c	182.934 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	56

Space group space_group	C 2 2 21
Space-group number int_tables_number	20
Crystal system crystal_system	—

Resolution resolution	2.640 Å
Low-resolution limit resolution_low	46.800 Å
R factor r_factor	0.2480
R_work r_work	0.2480
R_free r_free	0.3010

Description description	Hypothetical protein K11E8.1d
Molecular weight formula_weight	16462.3 kDa
EC 编号 ec_number	2.7.11.17
Source method src_method	man
Copy count entity_count	7

Polymer type type	polypeptide(L)
Chain IDs strand_id	B,D,F,H,J,L,N
Atom count atom_count	7335

The Association Domain of C. elegans CaMKII

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

Hypothetical protein K11E8.1d

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

2f86__assembly_1__model_1

2f86__assembly_1__model_1 | I(q)

2f86__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 (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 water

6. Fold Classification (SCOP + CATH) 14 domains

SCOP 2.08 (7 domains)

CATH v4.4 (7 domains)

7. Citations (1)

Source organism organism	Caenorhabditis elegans
NCBI taxonomy ID ncbi_taxonomy_id	6239
Host organism host_organism	Spodoptera frugiperda

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	20

The Association Domain of C. elegans CaMKII

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

Hypothetical protein K11E8.1d

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

2f86__assembly_1__model_1

2f86__assembly_1__model_1 | I(q)

2f86__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 (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 water

6. Fold Classification (SCOP + CATH) 14 domains

SCOP 2.08 (7 domains)

CATH v4.4 (7 domains)

7. Citations (1)