SAXSdb — 3ba0

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

Macrophage metalloelastase

Homo sapiens

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein monomer	Monomer	Protein 1	ZINC ION × 2 CALCIUM ION × 4 ACETOHYDROXAMIC ACID × 1 water × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	MMP12_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–365； UniProt 106–470

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	3ba0
Deposition date deposition_date	2007-11-07
Structure title title	Crystal structure of full-length human MMP-12
Keywords keywords	;Full-length MMP-12, hemopexin domain, catalytic domain, domain interaction., Calcium, Extracellular matrix, Glycoprotein, Hydrolase, Metal-binding, Metalloprotease, Polymorphism, Protease, Secreted, Zinc, Zymogen ;; HYDROLASE
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.

3ba0__assembly_1__model_1

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

Download this curve (.dat)

3ba0__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

3ba0__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	27.93 Å
Rg (electron density)	27.38 Å
Total Rg	28.10 Å
Atom count	3001
Residues	365
Excluded volume	53315 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`3ba0__assembly_1__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 (5)

Entity 1 Entity 1 polymer

Description description	Macrophage metalloelastase
Molecular weight formula_weight	42143.3 kDa
EC 编号 ec_number	3.4.24.65
Mutation mutation	F171D
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	3063

GPVWRKHYITYRINNYTPDMNREDVDYAIRKAFQVWSNVTPLKFSKINTGMADILVVFARGAHGDDHAFDGKGGILAHAFGPGSGIGGDAHFDEDEFWTTHSGGTNLFLTAVHEIGHSLGLGHSSDPKAVMFPTYKYVDINTFRLSADDIRGIQSLYGDPKENQRLPNPDNSEPALCDPNLSFDAVTTVGNKIFFFKDRFFWLKVSERPKTSVNLISSLWPTLPSGIEAAYEIEARNQVFLFKDDKYWLISNLRPEPNYPKSIHSFGFPNFVKKIDAAVFNPRFYRTYFFVDNQYWRYDERRQMMDPGYPKLITKNFQGIGPKIDAVFYSKNKYYYFFQGSNQFEYDFLLQRITKTLKSNSWFGC

Source Source

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

Entity 2 Entity 2 non-polymer

Description description	ZINC ION
Molecular weight formula_weight	65.4 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 3 Entity 3 non-polymer

Description description	CALCIUM ION
Molecular weight formula_weight	40.1 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 4 Entity 4 non-polymer

Description description	ACETOHYDROXAMIC ACID
Molecular weight formula_weight	75.1 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 5 Entity 5 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	62

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6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_id	d3ba0a1
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.92 — Zincin-like
Superfamily Superfamily superfamily	d.92.1 — Metalloproteases ('zincins'), catalytic domain
Family Family family	d.92.1.11 — Matrix metalloproteases, catalytic domain

Domain ID domain_id	d3ba0a2
Class class	b — All beta proteins
Fold Fold fold	b.66 — 4-bladed beta-propeller
Superfamily Superfamily superfamily	b.66.1 — Hemopexin-like domain
Family Family family	b.66.1.0 — automated matches

CATH v4.4 (2 domains)

Domain ID domain_id	3ba0A01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	390 — Collagenase (Catalytic Domain)
Homologous superfamily homologous superfamily	10 — Collagenase (Catalytic Domain)

Domain ID domain_id	3ba0A02
Class class	2 — Mainly Beta
Architecture architecture	110 — 4 Propeller
Topology topology	10 — Hemopexin
Homologous superfamily homologous superfamily	10 — Hemopexin-like domain

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Unit-cell length a length_a	135.037 Å
Unit-cell length b length_b	60.148 Å
Unit-cell length c length_c	59.611 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.74 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	4

Space group space_group	C 1 2 1
Space-group number int_tables_number	5
Crystal system crystal_system	—

Resolution resolution	3.000 Å
Low-resolution limit resolution_low	30.700 Å
R factor r_factor	0.2434
R_work r_work	0.2358
R_free r_free	0.3190

Crystal structure of full-length human MMP-12

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

Macrophage metalloelastase

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

3ba0__assembly_1__model_1

3ba0__assembly_1__model_1 | I(q)

3ba0__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 (5)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 water

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (3)

Crystal structure of full-length human MMP-12

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

Macrophage metalloelastase

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

3ba0__assembly_1__model_1

3ba0__assembly_1__model_1 | I(q)

3ba0__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 (5)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 water

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (3)