SAXSdb — 1q7d

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

collagen alfa 1(I) chain peptide GPOGPOGFOGERGPOGPOGPO

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	water × 3	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	CO1A1_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 8–13； UniProt 680–685 Author chain B； PDBConstruct 8–13； UniProt 680–685 Author chain C； PDBConstruct 8–13； UniProt 680–685

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	1q7d
Deposition date deposition_date	2003-08-18
Structure title title	Structure of the integrin alpha2beta1 binding collagen peptide
Keywords keywords	COLLAGEN, INTEGRIN, TRIPLEHELIX, CONTRACTILE PROTEIN; CONTRACTILE 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.

1q7d__assembly_1__model_1

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

Download this curve (.dat)

1q7d__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1q7d__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	16.96 Å
Rg (electron density)	17.82 Å
Total Rg	18.18 Å
Atom count	429
Residues	45
Excluded volume	7460 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1q7d__assembly_1__model_1`	trimeric （3）	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) 9 domains

SCOP 2.08 (9 domains)

Domain ID domain_id	d1q7da1
Class class	k — Designed proteins
Fold Fold fold	k.3 — Collagen-like peptides
Superfamily Superfamily superfamily	k.3.1 — Collagen-like peptides
Family Family family	k.3.1.1 — Collagen-like peptides

Domain ID domain_id	d1q7da2
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

Domain ID domain_id	d1q7da3
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

Domain ID domain_id	d1q7db1
Class class	k — Designed proteins
Fold Fold fold	k.3 — Collagen-like peptides
Superfamily Superfamily superfamily	k.3.1 — Collagen-like peptides
Family Family family	k.3.1.1 — Collagen-like peptides

Domain ID domain_id	d1q7db2
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

Domain ID domain_id	d1q7db3
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

Domain ID domain_id	d1q7dc1
Class class	k — Designed proteins
Fold Fold fold	k.3 — Collagen-like peptides
Superfamily Superfamily superfamily	k.3.1 — Collagen-like peptides
Family Family family	k.3.1.1 — Collagen-like peptides

Domain ID domain_id	d1q7dc2
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

Domain ID domain_id	d1q7dc3
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

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Unit-cell length a length_a	29.600 Å
Unit-cell length b length_b	135.800 Å
Unit-cell length c length_c	25.400 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	24

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

Resolution resolution	1.800 Å
Low-resolution limit resolution_low	6.000 Å
R factor r_factor	0.2363
R_work r_work	0.2363
R_free r_free	0.2660

Description description	collagen alfa 1(I) chain peptide GPOGPOGFOGERGPOGPOGPO
Molecular weight formula_weight	2039.2 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	523

Structure of the integrin alpha2beta1 binding collagen peptide

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

collagen alfa 1(I) chain peptide GPOGPOGFOGERGPOGPOGPO

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

1q7d__assembly_1__model_1

1q7d__assembly_1__model_1 | I(q)

1q7d__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

Entity 2 Entity 2 water

6. Fold Classification (SCOP + CATH) 9 domains

SCOP 2.08 (9 domains)

7. Citations (1)

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	94

Structure of the integrin alpha2beta1 binding collagen peptide

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

collagen alfa 1(I) chain peptide GPOGPOGFOGERGPOGPOGPO

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

1q7d__assembly_1__model_1

1q7d__assembly_1__model_1 | I(q)

1q7d__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

Entity 2 Entity 2 water

6. Fold Classification (SCOP + CATH) 9 domains

SCOP 2.08 (9 domains)

7. Citations (1)