SAXSdb — 7b4y

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

Putative copper oxidase

Streptomyces coelicolor (strain ATCC BAA-471 / A3(2) / M145)

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 3	COPPER (II) ION × 12 water × 3	Consistent with protein count
2	Protein homooligomer	Homooligomer	Protein 3	COPPER (II) ION × 12 water × 3	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q9XAL8_STRCO
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–342； UniProt 2–343 Author chain B； PDBConstruct 1–342； UniProt 2–343

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	7b4y
Deposition date deposition_date	2020-12-02
Structure title title	Structure of the M298L mutant of the Streptomyces coelicolor small laccase T1 copper axial ligand
Keywords keywords	small laccase, oxidoreductase, T1 copper, point mutation, M298L; OXIDOREDUCTASE
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.

7b4y__assembly_1__model_1

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

Download this curve (.dat)

7b4y__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

7b4y__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	26.99 Å
Rg (electron density)	26.13 Å
Total Rg	26.96 Å
Atom count	6438
Residues	831
Excluded volume	112380 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`7b4y__assembly_1__model_1`	trimeric （3）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`7b4y__assembly_2__model_1`	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 (3)

Entity 1 Entity 1 polymer

Description description	Putative copper oxidase
Molecular weight formula_weight	36782.8 kDa
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	4815

DRRGFNRRVLLGGAAAATSLSIAPEVAGAAPAAKGITARTAPAGGEVRHLKMYAEKLADGQMGYGFEKGKASVPGPLIEVNEGDTLHIEFTNTMDVRASLHVHGLDYEISSDGTAMNKSDVEPGGTRTYTWRTHKPGRRDDGTWRPGSAGYWHYHDHVVGTEHGTGGIRNGLYGPVIVRRKGDVLPDATHTIVFNDMTINNRKPHTGPDFEATVGDRVEIVMITHGEYYHTFHMHGHRWADNRTGILTGPDDPSRVIDNKITGPADSFGFQIIAGEGVGAGAWMYHCHVQSHSDMGLVGLFLVKKPDGTIPGYEPHEHGGATAKSGESGEPTGGAAAHEHEH

Source Source

Source organism organism	Streptomyces coelicolor (strain ATCC BAA-471 / A3(2) / M145)
NCBI taxonomy ID ncbi_taxonomy_id	100226
Host organism host_organism	Escherichia coli BL21

Entity 2 Entity 2 non-polymer

Description description	COPPER (II) ION
Molecular weight formula_weight	63.5 kDa
Source method src_method	syn
Copy count entity_count	8

Entity 3 Entity 3 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	433

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Unit-cell length a length_a	177.200 Å
Unit-cell length b length_b	177.200 Å
Unit-cell length c length_c	177.200 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	24

Space group space_group	P 21 3
Space-group number int_tables_number	198
Crystal system crystal_system	—

Resolution resolution	2.190 Å
Low-resolution limit resolution_low	62.650 Å
R factor r_factor	0.1502
R_work r_work	0.1498
R_free r_free	0.1583

Structure of the M298L mutant of the Streptomyces coelicolor small laccase T1 copper axial ligand

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

Putative copper oxidase

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

7b4y__assembly_1__model_1

7b4y__assembly_1__model_1 | I(q)

7b4y__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 (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

7. Citations (1)

Structure of the M298L mutant of the Streptomyces coelicolor small laccase T1 copper axial ligand

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

Putative copper oxidase

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

7b4y__assembly_1__model_1

7b4y__assembly_1__model_1 | I(q)

7b4y__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 (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

7. Citations (1)