SAXSdb — 1aq5

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

CARTILAGE MATRIX PROTEIN

Gallus gallus

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 3	No other associated polymer	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	MATN1_CHICK
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 5–47； UniProt 451–493 Author chain B； PDBConstruct 5–47； UniProt 451–493 Author chain C； PDBConstruct 5–47； UniProt 451–493

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	1aq5
Deposition date deposition_date	1997-08-07
Structure title title	HIGH-RESOLUTION SOLUTION NMR STRUCTURE OF THE TRIMERIC COILED-COIL DOMAIN OF CHICKEN CARTILAGE MATRIX PROTEIN, 20 STRUCTURES
Keywords keywords	;COILED-COIL, HEPTAD REPEAT, INTERCHAIN DISULFIDE BONDS, OLIGOMERIZATION DOMAIN, TRIMER, CARTILAGE MATRIX PROTEIN, MATRILIN-1, NONCOLLAGENOUS EXTRACELLULAR PROTEIN ;; COILED-COIL
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.

1aq5__assembly_1__model_6

Assembly 1 · Model 6 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

1aq5__assembly_1__model_6 | I(q)

100 plotted points; both axes use logarithmic scales.

1aq5__assembly_1__model_6 | P(r) · Pending

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

Rg（Guinier）	21.98 Å
Rg (electron density)	21.37 Å
Total Rg	22.09 Å
Atom count	2292
Residues	141
Excluded volume	20290 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1aq5__assembly_1__model_1`	trimeric （3）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	2	`1aq5__assembly_1__model_2`	trimeric （3）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	3	`1aq5__assembly_1__model_3`	trimeric （3）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	4	`1aq5__assembly_1__model_4`	trimeric （3）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	5	`1aq5__assembly_1__model_5`	trimeric （3）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	6	`1aq5__assembly_1__model_6`	trimeric （3）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	7	`1aq5__assembly_1__model_7`	trimeric （3）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	8	`1aq5__assembly_1__model_8`	trimeric （3）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	9	`1aq5__assembly_1__model_9`	trimeric （3）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	10	`1aq5__assembly_1__model_10`	trimeric （3）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	11	`1aq5__assembly_1__model_11`	trimeric （3）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	12	`1aq5__assembly_1__model_12`	trimeric （3）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	13	`1aq5__assembly_1__model_13`	trimeric （3）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	14	`1aq5__assembly_1__model_14`	trimeric （3）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	15	`1aq5__assembly_1__model_15`	trimeric （3）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	16	`1aq5__assembly_1__model_16`	trimeric （3）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	17	`1aq5__assembly_1__model_17`	trimeric （3）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	18	`1aq5__assembly_1__model_18`	trimeric （3）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	19	`1aq5__assembly_1__model_19`	trimeric （3）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	20	`1aq5__assembly_1__model_20`	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 (1)

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6. Fold Classification (SCOP + CATH) 9 domains

SCOP 2.08 (6 domains)

Domain ID domain_id	d1aq5a1
Class class	h — Coiled coil proteins
Fold Fold fold	h.1 — Parallel coiled-coil
Superfamily Superfamily superfamily	h.1.6 — Chicken cartilage matrix protein
Family Family family	h.1.6.1 — Chicken cartilage matrix protein

Domain ID domain_id	d1aq5a2
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	d1aq5b1
Class class	h — Coiled coil proteins
Fold Fold fold	h.1 — Parallel coiled-coil
Superfamily Superfamily superfamily	h.1.6 — Chicken cartilage matrix protein
Family Family family	h.1.6.1 — Chicken cartilage matrix protein

Domain ID domain_id	d1aq5b2
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	d1aq5c1
Class class	h — Coiled coil proteins
Fold Fold fold	h.1 — Parallel coiled-coil
Superfamily Superfamily superfamily	h.1.6 — Chicken cartilage matrix protein
Family Family family	h.1.6.1 — Chicken cartilage matrix protein

Domain ID domain_id	d1aq5c2
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

CATH v4.4 (3 domains)

Domain ID domain_id	1aq5A00
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	5 — Single alpha-helices involved in coiled-coils or other helix-helix interfaces
Homologous superfamily homologous superfamily	30 —

Domain ID domain_id	1aq5B00
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	5 — Single alpha-helices involved in coiled-coils or other helix-helix interfaces
Homologous superfamily homologous superfamily	30 —

Domain ID domain_id	1aq5C00
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	5 — Single alpha-helices involved in coiled-coils or other helix-helix interfaces
Homologous superfamily homologous superfamily	30 —

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Unit-cell length a length_a	1.000 Å
Unit-cell length b length_b	1.000 Å
Unit-cell length c length_c	1.000 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	1

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

Description description	CARTILAGE MATRIX PROTEIN
Molecular weight formula_weight	5393.3 kDa
Mutation mutation	INS(GSHM) AT THE N-TERMINUS OF THE COILED-COIL DOMAIN
Source method src_method	man
Copy count entity_count	3

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C
Atom count atom_count	45840

Source organism organism	Gallus gallus
Common name common_name	chicken
NCBI taxonomy ID ncbi_taxonomy_id	9031
Host organism host_organism	Escherichia coli BL21(DE3)

HIGH-RESOLUTION SOLUTION NMR STRUCTURE OF THE TRIMERIC COILED-COIL DOMAIN OF CHICKEN CARTILAGE MATRIX PROTEIN, 20 STRUCTURES

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

CARTILAGE MATRIX PROTEIN

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

1aq5__assembly_1__model_6

1aq5__assembly_1__model_6 | I(q)

1aq5__assembly_1__model_6 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

5. Entities and Polymers Entities & Polymers (1)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

6. Fold Classification (SCOP + CATH) 9 domains

SCOP 2.08 (6 domains)

CATH v4.4 (3 domains)

7. Citations (2)

HIGH-RESOLUTION SOLUTION NMR STRUCTURE OF THE TRIMERIC COILED-COIL DOMAIN OF CHICKEN CARTILAGE MATRIX PROTEIN, 20 STRUCTURES

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

CARTILAGE MATRIX PROTEIN

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

1aq5__assembly_1__model_6

1aq5__assembly_1__model_6 | I(q)

1aq5__assembly_1__model_6 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

5. Entities and Polymers Entities & Polymers (1)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

6. Fold Classification (SCOP + CATH) 9 domains

SCOP 2.08 (6 domains)

CATH v4.4 (3 domains)

7. Citations (2)