SAXSdb — 7zct

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

Red fluorescent protein drFP583

Discosoma sp.

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein monomer	Monomer	Protein 1	water × 1	Consistent with protein count
2	Protein monomer	Monomer	Protein 1	water × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RFP_DISSP
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 7–219； UniProt 7–221 Author chain B； PDBConstruct 7–219； UniProt 7–221

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	7zct
Deposition date deposition_date	2022-03-28
Structure title title	Structure of the red fluorescent protein mScarlet3 at pH 7.5
Keywords keywords	Red fluorescent protein, high fluorescence quantum yield, efficient chromophore maturation, FLUORESCENT PROTEIN; FLUORESCENT PROTEIN
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.

7zct__assembly_1__model_1

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

Download this curve (.dat)

7zct__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

7zct__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	17.65 Å
Rg (electron density)	16.46 Å
Total Rg	17.52 Å
Atom count	1745
Residues	214
Excluded volume	30910 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`7zct__assembly_1__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`7zct__assembly_2__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 (2)

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Unit-cell length a length_a	59.231 Å
Unit-cell length b length_b	61.862 Å
Unit-cell length c length_c	110.933 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	8

Space group space_group	P 21 21 21
Space-group number int_tables_number	19
Crystal system crystal_system	—

Resolution resolution	1.330 Å
Low-resolution limit resolution_low	42.780 Å
R factor r_factor	0.2004
R_work r_work	0.2001
R_free r_free	0.2283

Description description	Red fluorescent protein drFP583
Molecular weight formula_weight	25865.1 kDa
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	3883

Structure of the red fluorescent protein mScarlet3 at pH 7.5

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

Red fluorescent protein drFP583

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

7zct__assembly_1__model_1

7zct__assembly_1__model_1 | I(q)

7zct__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

7. Citations (2)

Source organism organism	Discosoma sp.
NCBI taxonomy ID ncbi_taxonomy_id	86600
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	244

Structure of the red fluorescent protein mScarlet3 at pH 7.5

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

Red fluorescent protein drFP583

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

7zct__assembly_1__model_1

7zct__assembly_1__model_1 | I(q)

7zct__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

7. Citations (2)