6hg7

Crystal structure of a collagen II fragment containing the binding site of PEDF and COMP, (POG)4-LKG HRG FTG LQG-POG(4)

Method: X-RAY DIFFRACTION

▼

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

Collagen alpha-1(II) chain

OrganismNot specified

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 3	SULFATE ION × 1 water × 3	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	CO2A1_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–38； UniProt 1116–1153 Author chain B； PDBConstruct 1–38； UniProt 1116–1153 Author chain C； PDBConstruct 1–38； UniProt 1116–1153

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	6hg7
Deposition date deposition_date	2018-08-22
Structure title title	Crystal structure of a collagen II fragment containing the binding site of PEDF and COMP, (POG)4-LKG HRG FTG LQG-POG(4)
Keywords keywords	collagen helix, collagen-like peptide, collagen II, STRUCTURAL PROTEIN; STRUCTURAL PROTEIN
Experimental Method method	X-RAY DIFFRACTION

▼

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.

6hg7__assembly_1__model_1

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

Download this curve (.dat)

6hg7__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

6hg7__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	28.25 Å
Rg (electron density)	30.07 Å
Total Rg	29.71 Å
Atom count	1429
Residues	84
Excluded volume	12974 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`6hg7__assembly_1__model_1`	trimeric （3）	Success	4.1.3-1-20251215 (887e7ef)	View Download

▶

4. Crystallography and Experiment 4. Crystallography & Experiment

▶

5. Entities and Polymers Entities & Polymers (3)

▶

Unit-cell length a length_a	31.970 Å
Unit-cell length b length_b	23.640 Å
Unit-cell length c length_c	107.939 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	92.70 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	12

Space group space_group	I 1 2 1
Space-group number int_tables_number	5
Crystal system crystal_system	monoclinic

Resolution resolution	1.000 Å
Low-resolution limit resolution_low	31.020 Å
R factor r_factor	0.1536
R_work r_work	0.1519
R_free r_free	0.1866

Description description	Collagen alpha-1(II) chain
Molecular weight formula_weight	3435.8 kDa
Source method src_method	syn
Copy count entity_count	3

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C
Atom count atom_count	1626

Crystal structure of a collagen II fragment containing the binding site of PEDF and COMP, (POG)4-LKG HRG FTG LQG-POG(4)

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

Collagen alpha-1(II) chain

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

6hg7__assembly_1__model_1

6hg7__assembly_1__model_1 | I(q)

6hg7__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

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

7. Citations (1)

Description description	SULFATE ION
Molecular weight formula_weight	96.1 kDa
Source method src_method	syn
Copy count entity_count	1

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	164

Crystal structure of a collagen II fragment containing the binding site of PEDF and COMP, (POG)4-LKG HRG FTG LQG-POG(4)

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

Collagen alpha-1(II) chain

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

6hg7__assembly_1__model_1

6hg7__assembly_1__model_1 | I(q)

6hg7__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

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

7. Citations (1)