SAXSdb — 1fux

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

HYPOTHETICAL 19.5 KDA PROTEIN IN EMRE-RUS INTERGENIC REGION

Escherichia coli

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

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	YBCL_ECOLI
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 3–164； UniProt 22–183 Author chain B； PDBConstruct 3–164； UniProt 22–183

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	1fux
Deposition date deposition_date	2000-09-18
Structure title title	CRYSTAL STRUCTURE OF E.COLI YBCL, A NEW MEMBER OF THE MAMMALIAN PEBP FAMILY
Keywords keywords	BETA PROTEIN, UNKNOWN FUNCTION; UNKNOWN FUNCTION
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.

1fux__assembly_1__model_1

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

Download this curve (.dat)

1fux__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1fux__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	21.08 Å
Rg (electron density)	20.39 Å
Total Rg	21.32 Å
Atom count	2472
Residues	327
Excluded volume	43630 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1fux__assembly_1__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) 7 domains

SCOP 2.08 (5 domains)

Domain ID domain_id	d1fuxa1
Class class	b — All beta proteins
Fold Fold fold	b.17 — PEBP-like
Superfamily Superfamily superfamily	b.17.1 — PEBP-like
Family Family family	b.17.1.2 — Prokaryotic PEBP-like proteins

Domain ID domain_id	d1fuxa2
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

Domain ID domain_id	d1fuxa3
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

Domain ID domain_id	d1fuxb1
Class class	b — All beta proteins
Fold Fold fold	b.17 — PEBP-like
Superfamily Superfamily superfamily	b.17.1 — PEBP-like
Family Family family	b.17.1.2 — Prokaryotic PEBP-like proteins

Domain ID domain_id	d1fuxb2
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

CATH v4.4 (2 domains)

Domain ID domain_id	1fuxA00
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	280 — Phosphatidylethanolamine-binding Protein
Homologous superfamily homologous superfamily	10 — PEBP-like

Domain ID domain_id	1fuxB00
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	280 — Phosphatidylethanolamine-binding Protein
Homologous superfamily homologous superfamily	10 — PEBP-like

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Unit-cell length a length_a	49.425 Å
Unit-cell length b length_b	55.531 Å
Unit-cell length c length_c	60.152 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	105.39 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	4

Space group space_group	P 1 21 1
Space-group number int_tables_number	4
Crystal system crystal_system	—

Resolution resolution	1.810 Å
Low-resolution limit resolution_low	25.000 Å
R factor r_factor	—
R_work r_work	0.1995
R_free r_free	0.2542

Description description	HYPOTHETICAL 19.5 KDA PROTEIN IN EMRE-RUS INTERGENIC REGION
Molecular weight formula_weight	17816.6 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	2707

CRYSTAL STRUCTURE OF E.COLI YBCL, A NEW MEMBER OF THE MAMMALIAN PEBP FAMILY

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

HYPOTHETICAL 19.5 KDA PROTEIN IN EMRE-RUS INTERGENIC REGION

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

1fux__assembly_1__model_1

1fux__assembly_1__model_1 | I(q)

1fux__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) 7 domains

SCOP 2.08 (5 domains)

CATH v4.4 (2 domains)

7. Citations (1)

Source organism organism	Escherichia coli
NCBI taxonomy ID ncbi_taxonomy_id	562
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	206

CRYSTAL STRUCTURE OF E.COLI YBCL, A NEW MEMBER OF THE MAMMALIAN PEBP FAMILY

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

HYPOTHETICAL 19.5 KDA PROTEIN IN EMRE-RUS INTERGENIC REGION

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

1fux__assembly_1__model_1

1fux__assembly_1__model_1 | I(q)

1fux__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) 7 domains

SCOP 2.08 (5 domains)

CATH v4.4 (2 domains)

7. Citations (1)