SAXSdb — 3n2u

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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 × 3 ;N-hydroxy-2-{[(4-methoxyphenyl)sulfonyl](2-{[(2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl]oxy}ethyl)amino}acetamide ; × 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 1–158； UniProt 106–263

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	3n2u
Deposition date deposition_date	2010-05-19
Structure title title	Crystal structure of the catalytic domain of human MMP12 complexed with the inhibitor N-hydroxy-2-(4-methoxy-N(2-(3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yloxy)ethyl)phenylsulfonamido)acetamide
Keywords keywords	;MATRIX METALLOPROTEINASE, MMP12, ELASTASE, COMPLEX (ELASTASE-INHIBITOR), METALLO ELASTASE, EXTRACELLULAR MATRIX, GLYCOPROTEIN, HYDROLASE, METAL-INDING, METALLOPROTEASE, PROTEASE, SECRETED, ZYMOGEN, Hydrolase-Hydrolase inhibitor complex ;; Hydrolase/Hydrolase inhibitor
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.

3n2u__assembly_1__model_1

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

Download this curve (.dat)

3n2u__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

3n2u__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	15.81 Å
Rg (electron density)	14.48 Å
Total Rg	15.68 Å
Atom count	1274
Residues	158
Excluded volume	22478 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`3n2u__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	17484.5 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	1420

GPVWRKHYITYRINNYTPDMNREDVDYAIRKAFQVWSNVTPLKFSKINTGMADILVVFARGAHGDDHAFDGKGGILAHAFGPGSGIGGDAHFDEDEFWTTHSGGTNLFLTAVHEIGHSLGLGHSSDPKAVMFPTYKYVDINTFRLSADDIRGIQSLYG

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	3

Entity 4 Entity 4 non-polymer

Description description	;N-hydroxy-2-{[(4-methoxyphenyl)sulfonyl](2-{[(2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl]oxy}ethyl)amino}acetamide ;
Molecular weight formula_weight	466.5 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	146

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6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_id	d3n2ua_
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

CATH v4.4 (1 domains)

Domain ID domain_id	3n2uA00
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)

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Unit-cell length a length_a	51.394 Å
Unit-cell length b length_b	60.446 Å
Unit-cell length c length_c	54.043 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	114.67 °
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	1.810 Å
Low-resolution limit resolution_low	30.220 Å
R factor r_factor	0.1658
R_work r_work	0.1608
R_free r_free	0.2190

Crystal structure of the catalytic domain of human MMP12 complexed with the inhibitor N-hydroxy-2-(4-methoxy-N(2-(3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yloxy)ethyl)phenylsulfonamido)acetamide

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

3n2u__assembly_1__model_1

3n2u__assembly_1__model_1 | I(q)

3n2u__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) 2 domains

SCOP 2.08 (1 domains)

CATH v4.4 (1 domains)

7. Citations (2)

Crystal structure of the catalytic domain of human MMP12 complexed with the inhibitor N-hydroxy-2-(4-methoxy-N(2-(3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yloxy)ethyl)phenylsulfonamido)acetamide

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

3n2u__assembly_1__model_1

3n2u__assembly_1__model_1 | I(q)

3n2u__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) 2 domains

SCOP 2.08 (1 domains)

CATH v4.4 (1 domains)

7. Citations (2)