SAXSdb — 3e5w

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

Red fluorescent protein eqFP611

Entacmaea quadricolor

State in the Current Structure

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

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RFP_PARAC
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 14–242； UniProt 1–231 Author chain B； PDBConstruct 14–242； UniProt 1–231 Author chain C； PDBConstruct 14–242； UniProt 1–231 Author chain D； PDBConstruct 14–242； UniProt 1–231

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	3e5w
Deposition date deposition_date	2008-08-14
Structure title title	Crystal Structure Analysis of FP611
Keywords keywords	Chromophore, Luminescence, Photoprotein, RFP639, eqFP611, cis trans isomer, red fluorescent protein, 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.

3e5w__assembly_1__model_1

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

Download this curve (.dat)

3e5w__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

3e5w__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	23.86 Å
Rg (electron density)	22.95 Å
Total Rg	23.97 Å
Atom count	3626
Residues	452
Excluded volume	64445 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`3e5w__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`3e5w__assembly_2__model_1`	dimeric （2）	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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6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_id	d3e5wa_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.22 — GFP-like
Superfamily Superfamily superfamily	d.22.1 — GFP-like
Family Family family	d.22.1.1 — Fluorescent proteins

Domain ID domain_id	d3e5wb_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.22 — GFP-like
Superfamily Superfamily superfamily	d.22.1 — GFP-like
Family Family family	d.22.1.1 — Fluorescent proteins

Domain ID domain_id	d3e5wc_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.22 — GFP-like
Superfamily Superfamily superfamily	d.22.1 — GFP-like
Family Family family	d.22.1.1 — Fluorescent proteins

Domain ID domain_id	d3e5wd_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.22 — GFP-like
Superfamily Superfamily superfamily	d.22.1 — GFP-like
Family Family family	d.22.1.1 — Fluorescent proteins

CATH v4.4 (4 domains)

Domain ID domain_id	3e5wA00
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	155 — Green Fluorescent Protein
Homologous superfamily homologous superfamily	10 — Green fluorescent protein

Domain ID domain_id	3e5wB00
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	155 — Green Fluorescent Protein
Homologous superfamily homologous superfamily	10 — Green fluorescent protein

Domain ID domain_id	3e5wC00
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	155 — Green Fluorescent Protein
Homologous superfamily homologous superfamily	10 — Green fluorescent protein

Domain ID domain_id	3e5wD00
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	155 — Green Fluorescent Protein
Homologous superfamily homologous superfamily	10 — Green fluorescent protein

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Unit-cell length a length_a	71.250 Å
Unit-cell length b length_b	104.460 Å
Unit-cell length c length_c	133.320 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	16

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

Resolution resolution	1.710 Å
Low-resolution limit resolution_low	62.800 Å
R factor r_factor	0.1840
R_work r_work	0.1830
R_free r_free	0.2090

Description description	Red fluorescent protein eqFP611
Molecular weight formula_weight	27697.6 kDa
Source method src_method	man
Copy count entity_count	4

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D
Atom count atom_count	8369

Crystal Structure Analysis of FP611

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

Red fluorescent protein eqFP611

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

3e5w__assembly_1__model_1

3e5w__assembly_1__model_1 | I(q)

3e5w__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

6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

CATH v4.4 (4 domains)

7. Citations (1)

Source organism organism	Entacmaea quadricolor
Common name common_name	Sea anemone
NCBI taxonomy ID ncbi_taxonomy_id	6118
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	1117

Crystal Structure Analysis of FP611

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

Red fluorescent protein eqFP611

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

3e5w__assembly_1__model_1

3e5w__assembly_1__model_1 | I(q)

3e5w__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

6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

CATH v4.4 (4 domains)

7. Citations (1)