SAXSdb — 1mkg

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

Vascular Endothelial Growth Factor A

Homo sapiens

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	water × 2	Consistent with protein count
2	Protein homooligomer	Homooligomer	Protein 2	water × 2	Consistent with protein count
3	Protein homooligomer	Homooligomer	Protein 4	water × 4	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	VEGFA_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 2–96； UniProt 40–134 Author chain B； PDBConstruct 2–96； UniProt 40–134 Author chain C； PDBConstruct 2–96； UniProt 40–134 Author chain D； PDBConstruct 2–96； UniProt 40–134

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	1mkg
Deposition date deposition_date	2002-08-29
Structure title title	DISULFIDE DEFICIENT MUTANT OF VASCULAR ENDOTHELIAL GROWTH FACTOR A (C57A and C102A)
Keywords keywords	cystine-knot growth factor, HORMONE-GROWTH FACTOR COMPLEX; HORMONE/GROWTH FACTOR
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.

1mkg__assembly_1__model_1

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

Download this curve (.dat)

1mkg__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1mkg__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	20.07 Å
Rg (electron density)	19.51 Å
Total Rg	20.22 Å
Atom count	1518
Residues	188
Excluded volume	26974 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1mkg__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`1mkg__assembly_2__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
3	1	`1mkg__assembly_3__model_1`	tetrameric （4）	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) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_id	d1mkga_
Class class	g — Small proteins
Fold Fold fold	g.17 — Cystine-knot cytokines
Superfamily Superfamily superfamily	g.17.1 — Cystine-knot cytokines
Family Family family	g.17.1.1 — Platelet-derived growth factor-like

Domain ID domain_id	d1mkgb_
Class class	g — Small proteins
Fold Fold fold	g.17 — Cystine-knot cytokines
Superfamily Superfamily superfamily	g.17.1 — Cystine-knot cytokines
Family Family family	g.17.1.1 — Platelet-derived growth factor-like

Domain ID domain_id	d1mkgc_
Class class	g — Small proteins
Fold Fold fold	g.17 — Cystine-knot cytokines
Superfamily Superfamily superfamily	g.17.1 — Cystine-knot cytokines
Family Family family	g.17.1.1 — Platelet-derived growth factor-like

Domain ID domain_id	d1mkgd_
Class class	g — Small proteins
Fold Fold fold	g.17 — Cystine-knot cytokines
Superfamily Superfamily superfamily	g.17.1 — Cystine-knot cytokines
Family Family family	g.17.1.1 — Platelet-derived growth factor-like

CATH v4.4 (4 domains)

Domain ID domain_id	1mkgA00
Class class	2 — Mainly Beta
Architecture architecture	10 — Ribbon
Topology topology	90 — Cystine Knot Cytokines, subunit B
Homologous superfamily homologous superfamily	10 — Cystine-knot cytokines

Domain ID domain_id	1mkgB00
Class class	2 — Mainly Beta
Architecture architecture	10 — Ribbon
Topology topology	90 — Cystine Knot Cytokines, subunit B
Homologous superfamily homologous superfamily	10 — Cystine-knot cytokines

Domain ID domain_id	1mkgC00
Class class	2 — Mainly Beta
Architecture architecture	10 — Ribbon
Topology topology	90 — Cystine Knot Cytokines, subunit B
Homologous superfamily homologous superfamily	10 — Cystine-knot cytokines

Domain ID domain_id	1mkgD00
Class class	2 — Mainly Beta
Architecture architecture	10 — Ribbon
Topology topology	90 — Cystine Knot Cytokines, subunit B
Homologous superfamily homologous superfamily	10 — Cystine-knot cytokines

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Unit-cell length a length_a	96.200 Å
Unit-cell length b length_b	96.200 Å
Unit-cell length c length_c	125.900 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	120.00 °
Molecules per unit cell Z z_pdb	24

Space group space_group	P 65
Space-group number int_tables_number	170
Crystal system crystal_system	—

Resolution resolution	2.500 Å
Low-resolution limit resolution_low	38.000 Å
R factor r_factor	0.2430
R_work r_work	0.2380
R_free r_free	0.2880

Description description	Vascular Endothelial Growth Factor A
Molecular weight formula_weight	11196.0 kDa
Mutation mutation	C57A,C102A
Source method src_method	man
Copy count entity_count	4

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D
Atom count atom_count	3170

DISULFIDE DEFICIENT MUTANT OF VASCULAR ENDOTHELIAL GROWTH FACTOR A (C57A and C102A)

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

Vascular Endothelial Growth Factor A

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

1mkg__assembly_1__model_1

1mkg__assembly_1__model_1 | I(q)

1mkg__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

Source Source

Entity 2 Entity 2 water

6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

CATH v4.4 (4 domains)

7. Citations (2)

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

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	134

DISULFIDE DEFICIENT MUTANT OF VASCULAR ENDOTHELIAL GROWTH FACTOR A (C57A and C102A)

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

Vascular Endothelial Growth Factor A

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

1mkg__assembly_1__model_1

1mkg__assembly_1__model_1 | I(q)

1mkg__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

Source Source

Entity 2 Entity 2 water

6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

CATH v4.4 (4 domains)

7. Citations (2)