SAXSdb — 29hm

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

Protease 3C

enterovirus D68

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein monomer	Monomer	Protein 1	CHLORIDE ION × 1 water × 1	Consistent with protein count
2	Protein monomer	Monomer	Protein 1	CHLORIDE ION × 1 water × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	POLG_HED68
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–183； UniProt 1549–1731 Author chain B； PDBConstruct 1–183； UniProt 1549–1731

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	29hm
Deposition date deposition_date	2026-03-12
Structure title title	Crystal structure of Enterovirus D68 3C protease determined via sulfur phasing
Keywords keywords	;Enterovirus D68, 3C protease, Diamond Light Source, Beamline i23, sulfur phasing, long wavelength; OpenBind Consortium, VIRAL PROTEIN ;; VIRAL PROTEIN
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.

29hm__assembly_1__model_1

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

Download this curve (.dat)

29hm__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

29hm__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	16.55 Å
Rg (electron density)	15.12 Å
Total Rg	16.22 Å
Atom count	1407
Residues	181
Excluded volume	25046 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`29hm__assembly_1__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`29hm__assembly_2__model_1`	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 (3)

Entity 1 Entity 1 polymer

Description description	Protease 3C
Molecular weight formula_weight	20230.0 kDa
EC 编号 ec_number	3.4.22.28
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	3059

GPGFDFAQAIMKKNTVIARTEKGEFTMLGVYDRVAVIPTHASVGETIYINDVETKVLDACALRDLTDTNLEITIVKLDRNQKFRDIRHFLPRYEDDYNDAVLSVHTSKFPNMYIPVGQVTNYGFLNLGGTPTHRILMYNFPTRAGQCGGVVTTTGKVIGIHVGGNGAQGFAAMLLHSYFSDTQ

Source Source

Source organism organism	enterovirus D68
NCBI taxonomy ID ncbi_taxonomy_id	42789
Host organism host_organism	Escherichia coli BL21

Entity 2 Entity 2 non-polymer

Description description	CHLORIDE ION
Molecular weight formula_weight	35.5 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 3 Entity 3 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	239

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Unit-cell length a length_a	39.468 Å
Unit-cell length b length_b	104.468 Å
Unit-cell length c length_c	43.029 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	109.27 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	4

Space group space_group	P 1 21 1
Space-group number int_tables_number	4
Crystal system crystal_system	—

Resolution resolution	1.801 Å
Low-resolution limit resolution_low	52.230 Å
R factor r_factor	0.1922
R_work r_work	0.1894
R_free r_free	0.2313

Crystal structure of Enterovirus D68 3C protease determined via sulfur phasing

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

Protease 3C

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

29hm__assembly_1__model_1

29hm__assembly_1__model_1 | I(q)

29hm__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 (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

7. Citations (1)

Crystal structure of Enterovirus D68 3C protease determined via sulfur phasing

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

Protease 3C

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

29hm__assembly_1__model_1

29hm__assembly_1__model_1 | I(q)

29hm__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 (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

7. Citations (1)