SAXSdb — 28yj

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

Uromodulin

OrganismNot specified

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Other combination	Homooligomer	Protein 4 其他Polymer 8	beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 7 ;alpha-D-mannopyranose-(1-3)-alpha-D-mannopyranose-(1-6)-[alpha-D-mannopyranose-(1-3)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose ; × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q766V2_CHICK
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–324； UniProt 22–345 Author chain B； PDBConstruct 1–324； UniProt 22–345 Author chain C； PDBConstruct 1–324； UniProt 22–345 Author chain D； PDBConstruct 1–324； UniProt 22–345

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	28yj
Deposition date deposition_date	2026-03-02
Structure title title	Molecular basis of ZPD homopolymerization: cryo-EM structure of a native vertebrate egg coat filament
Keywords keywords	;Epidermal growth factor domain, EGF domain, zona pellucida module, zona pellucida domain, ZP module, ZP domain, ZP-N domain, ZP-C domain, interdomain linker, extracellular matrix, glycoprotein, N-glycan, structural protein, protein filament, protein polymerization, fertilization, egg coat ;; STRUCTURAL PROTEIN
Experimental Method method	ELECTRON MICROSCOPY

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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.

28yj__assembly_1__model_1

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

Download this curve (.dat)

28yj__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

28yj__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	54.37 Å
Rg (electron density)	55.43 Å
Total Rg	55.07 Å
Atom count	12336
Residues	752
Excluded volume	111960 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`28yj__assembly_1__model_1`	tetrameric （4）	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	Uromodulin
Molecular weight formula_weight	36825.2 kDa
Source method src_method	nat
Copy count entity_count	4

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D
Atom count atom_count	12336

NKSELVSPHNSRGRFALRAKRSSDACVPNPCQHHGGCQVIEDRPICSCKPGFTGAFCQDVVLKLACEEEHMKMMVRKEVFELLKIPRELVHLKNQACKVSEREEEGEMFFAATLTGENHTACGSVIQQNSSHVSYSNIIETGREAHRGVISRSFQLEVHFSCVYAYEQVVKMPFALTPVDKLVQFMVREGHFNVSMRLYKTASYLEPYDLLTAAVPITDTLYVMLKIEGQHQLRYFLLSVEDCWATPSADPYQDVLHELIEQGCPHDETVTYLNAIGESTTAKFSFQMFQFVGYPKVFLHCRVRLCLPDGPEPCAKQCPTLWRS

Entity 2 Entity 2 branched

Description description	beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose
Molecular weight formula_weight	586.5 kDa
Source method src_method	nat
Copy count entity_count	7

Entity 3 Entity 3 branched

Description description	;alpha-D-mannopyranose-(1-3)-alpha-D-mannopyranose-(1-6)-[alpha-D-mannopyranose-(1-3)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose ;
Molecular weight formula_weight	1073.0 kDa
Source method src_method	man
Copy count entity_count	1

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Unit-cell length a length_a	1.000 Å
Unit-cell length b length_b	1.000 Å
Unit-cell length c length_c	1.000 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	—

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

Resolution resolution	4.600 Å
Low-resolution limit resolution_low	— Å
R factor r_factor	—
R_work r_work	—
R_free r_free	—

Resolution resolution	4.60 Å
Resolution测定Method resolution_method	—
颗粒数 num_particles	498339

Molecular basis of ZPD homopolymerization: cryo-EM structure of a native vertebrate egg coat filament

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

Uromodulin

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

28yj__assembly_1__model_1

28yj__assembly_1__model_1 | I(q)

28yj__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

冷冻电镜 EM 3D

5. Entities and Polymers Entities & Polymers (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 branched

Entity 3 Entity 3 branched

7. Citations (5)

Molecular basis of ZPD homopolymerization: cryo-EM structure of a native vertebrate egg coat filament

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

Uromodulin

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

28yj__assembly_1__model_1

28yj__assembly_1__model_1 | I(q)

28yj__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

冷冻电镜 EM 3D

5. Entities and Polymers Entities & Polymers (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 branched

Entity 3 Entity 3 branched

7. Citations (5)