SAXSdb — 2kdk

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

Aryl hydrocarbon receptor nuclear translocator-like protein 2

Homo sapiens

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein monomer	Monomer	Protein 1	No other associated polymer	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	BMAL2_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 4–121； UniProt 360–477

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	2kdk
Deposition date deposition_date	2009-01-10
Structure title title	Structure of human circadian clock protein BMAL2 C-terminal PAS domain
Keywords keywords	;circadian clock, PAS domain, transcription, Activator, Biological rhythms, DNA-binding, Nucleus, Transcription regulation, TRANSCRIPTION REGULATOR ;; TRANSCRIPTION REGULATOR
Experimental Method method	SOLUTION NMR

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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.

2kdk__assembly_1__model_9

Assembly 1 · Model 9 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

2kdk__assembly_1__model_9 | I(q)

100 plotted points; both axes use logarithmic scales.

2kdk__assembly_1__model_9 | P(r) · Pending

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

Rg（Guinier）	16.10 Å
Rg (electron density)	14.65 Å
Total Rg	15.96 Å
Atom count	1890
Residues	118
Excluded volume	17014 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2kdk__assembly_1__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	2	`2kdk__assembly_1__model_2`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	3	`2kdk__assembly_1__model_3`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	4	`2kdk__assembly_1__model_4`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	5	`2kdk__assembly_1__model_5`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	6	`2kdk__assembly_1__model_6`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	7	`2kdk__assembly_1__model_7`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	8	`2kdk__assembly_1__model_8`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	9	`2kdk__assembly_1__model_9`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	10	`2kdk__assembly_1__model_10`	monomeric （1）	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 (1)

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6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_id	d2kdka_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.110 — Profilin-like
Superfamily Superfamily superfamily	d.110.3 — PYP-like sensor domain (PAS domain)
Family Family family	d.110.3.0 — automated matches

CATH v4.4 (1 domains)

Domain ID domain_id	2kdkA01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	450 — Beta-Lactamase
Homologous superfamily homologous superfamily	20 — PAS domain

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Description description	Aryl hydrocarbon receptor nuclear translocator-like protein 2
Molecular weight formula_weight	13870.5 kDa
Mutation mutation	W408D
Source method src_method	man
Copy count entity_count	1

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	18900

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

Structure of human circadian clock protein BMAL2 C-terminal PAS domain

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

Aryl hydrocarbon receptor nuclear translocator-like protein 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

2kdk__assembly_1__model_9

2kdk__assembly_1__model_9 | I(q)

2kdk__assembly_1__model_9 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

5. Entities and Polymers Entities & Polymers (1)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

CATH v4.4 (1 domains)

7. Citations (1)

Structure of human circadian clock protein BMAL2 C-terminal PAS domain

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

Aryl hydrocarbon receptor nuclear translocator-like protein 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

2kdk__assembly_1__model_9

2kdk__assembly_1__model_9 | I(q)

2kdk__assembly_1__model_9 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

5. Entities and Polymers Entities & Polymers (1)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

CATH v4.4 (1 domains)

7. Citations (1)