SAXSdb — 3b4r

▼

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

Putative zinc metalloprotease MJ0392

Methanocaldococcus jannaschii

State in the Current Structure

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

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Y392_METJA
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–224； UniProt 1–224 Author chain B； PDBConstruct 1–224； UniProt 1–224

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.

▼

2. Structure Basics 2. Structure Basics

Entry ID entry_id	3b4r
Deposition date deposition_date	2007-10-24
Structure title title	Site-2 Protease from Methanocaldococcus jannaschii
Keywords keywords	Intramembrane protease, metalloprotease, CBS domain, Hydrolase, Metal-binding, Transmembrane, Zinc; HYDROLASE
Experimental Method method	X-RAY DIFFRACTION

▼

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.

3b4r__assembly_1__model_1

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

Download this curve (.dat)

3b4r__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

3b4r__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	23.37 Å
Rg (electron density)	22.57 Å
Total Rg	23.63 Å
Atom count	3406
Residues	434
Excluded volume	63939 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`3b4r__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download

▶

4. Crystallography and Experiment 4. Crystallography & Experiment

▶

5. Entities and Polymers Entities & Polymers (2)

▶

Unit-cell length a length_a	124.420 Å
Unit-cell length b length_b	124.420 Å
Unit-cell length c length_c	136.720 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	18

Space group space_group	H 3
Space-group number int_tables_number	146
Crystal system crystal_system	—

Resolution resolution	3.300 Å
Low-resolution limit resolution_low	34.990 Å
R factor r_factor	0.2510
R_work r_work	0.2510
R_free r_free	0.3180

Description description	Putative zinc metalloprotease MJ0392
Molecular weight formula_weight	24944.4 kDa
EC 编号 ec_number	3.4.24.-
Source method src_method	man
Copy count entity_count	2

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	3406

Site-2 Protease from Methanocaldococcus jannaschii

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

Putative zinc metalloprotease MJ0392

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

3b4r__assembly_1__model_1

3b4r__assembly_1__model_1 | I(q)

3b4r__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

5. Entities and Polymers Entities & Polymers (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

7. Citations (1)

Source organism organism	Methanocaldococcus jannaschii
NCBI taxonomy ID ncbi_taxonomy_id	2190
Host organism host_organism	Escherichia coli

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

Site-2 Protease from Methanocaldococcus jannaschii

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

Putative zinc metalloprotease MJ0392

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

3b4r__assembly_1__model_1

3b4r__assembly_1__model_1 | I(q)

3b4r__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

5. Entities and Polymers Entities & Polymers (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

7. Citations (1)