SAXSdb — 5ydf

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

Parafibromin

Homo sapiens

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein monomer Monomer Protein × 1 PDB declaration: monomeric（1） Consistent with protein copy count	Chain A； UniProt 1–100	Fragment：UNP residues 1-100	No other associated polymer	X-RAY DIFFRACTION X-ray crystallization conditions：VAPOR DIFFUSION, HANGING DROP；293 K；PEG 3350, Tris, magnesium chloride	Resolution 1.40 Å R-free 0.174
2	Protein monomer Monomer Protein × 1 PDB declaration: monomeric（1） Consistent with protein copy count	Chain B； UniProt 1–100	Fragment：UNP residues 1-100	No other associated polymer	X-RAY DIFFRACTION X-ray crystallization conditions：VAPOR DIFFUSION, HANGING DROP；293 K；PEG 3350, Tris, magnesium chloride	Resolution 1.40 Å R-free 0.174

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB	Difference from Current Entry 5YDF	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
5YDE Crystal structure of a disease-related gene, hCDC73(1-111) Deposited 2017-09-13	Different construct Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 1–111（111 aa） Fragment：UNP residues 1-111	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；293 K；PEG 3350, Tris	Resolution 1.02 Å R-free 0.139
6TED Structure of complete, activated transcription complex Pol II-DSIF-PAF-SPT6 uncovers allosteric elongation activation by RTF1 Deposited 2019-11-11	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 21 PDB declaration: 24-meric	Chain X 1–531（531 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE；2 microliters applied to both sides of grid. Sample incubated on grid for 10s prior to blotting. Blotting for 8.5s.	Resolution 3.10 Å
7OOP Pol II-CSB-CSA-DDB1-UVSSA-PAF-SPT6 (Structure 3) Deposited 2021-05-28	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 23 PDB declaration: 26-meric	Chain Z 1–531（531 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
7OPC Pol II-CSB-CRL4CSA-UVSSA-SPT6-PAF (Structure 4) Deposited 2021-05-31	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 25 PDB declaration: 28-meric	Chain Z 1–531（531 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7OPD Pol II-CSB-CRL4CSA-UVSSA-SPT6-PAF (Structure 5) Deposited 2021-05-31	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 25 PDB declaration: 28-meric	Chain Z 1–531（531 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7UNC Pol II-DSIF-SPT6-PAF1c-TFIIS complex with rewrapped nucleosome Deposited 2022-04-10	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 29 PDB declaration: 32-meric	Chain X 1–531（531 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7UND Pol II-DSIF-SPT6-PAF1c-TFIIS-nucleosome complex (stalled at +38) Deposited 2022-04-10	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 30 PDB declaration: 33-meric	Chain X 1–531（531 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
8A3Y Structure of mammalian Pol II-DSIF-SPT6-PAF1-TFIIS-hexasome elongation complex Deposited 2022-06-09	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Insufficient information Heteromer；Protein × 27 PDB declaration: 30-meric	Chain X 1–531（531 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.30 Å
9EGX RNA polymerase II-DSIF-SPT6-PAF1c-TFIIS-IWS1-hexasome, bp +27 Deposited 2024-11-21	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 29 PDB declaration: 32-meric	Chain X 1–531（531 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
9EGY RNA polymerase II-DSIF-SPT6-PAF1c-TFIIS-IWS1-nucleosome, bp +27 Deposited 2024-11-21	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 31 PDB declaration: 34-meric	Chain X 1–531（531 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
9EGZ RNA polymerase II-DSIF-SPT6-PAF1c-TFIIS-IWS1-SETD2-nucleosome, bp +27 Deposited 2024-11-21	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 32 PDB declaration: 35-meric	Chain X 1–531（531 aa）	Not recorded	ZN ZINC ION × 12 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
9EH0 RNA polymerase II-DSIF-SPT6-PAF1c-TFIIS-IWS1-SETD2-nucleosome, 30 bp upstream Deposited 2024-11-21	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 32 PDB declaration: 35-meric	Chain X 1–531（531 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
9EH1 RNA polymerase II-DSIF-SPT6-PAF1c-TFIIS-IWS1-SETD2-nucleosome, 20 bp upstream Deposited 2024-11-21	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 32 PDB declaration: 35-meric	Chain X 218–260（43 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.10 Å
9EH2 RNA polymerase II-DSIF-SPT6-PAF1c-TFIIS-IWS1-SETD2-FACT nucleosome upstream Deposited 2024-11-21	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 32 PDB declaration: 35-meric	Chain X 1–531（531 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.10 Å
9HVQ Structure of the transcribing Pol II-DSIF-PAF-SPT6-RECQL5 complex Deposited 2024-12-31	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 21 PDB declaration: 24-meric	Chain X 1–531（531 aa）	Not recorded	ZN ZINC ION × 8 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5；20 mM HEPES pH 7.5, 50 mM KCl, 4 mM MgCl2, 1 mM DTT cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.00 Å
9MLC Pol II-DSIF-SPT6-PAF1c-TFIIS-IWS1-ELOF1-LEDGF-nucleosome activated elongation complex Composite map T Deposited 2024-12-19	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 24 PDB declaration: 27-meric	Chain X 1–531（531 aa）	Not recorded	ZN ZINC ION × 10 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.40 Å
9RTT Activated Elongation Complex with IWS1 and ELOF1 Deposited 2025-07-03	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 22 PDB declaration: 25-meric	Chain X 1–531（531 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 4.01 Å
9RZE State 2 MAP 3 RNA Pol II activated elongation complex with SETD2 bound to proximal upstream H3 Deposited 2025-07-15	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 31 PDB declaration: 34-meric	Chain X 1–531（531 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 8.53 Å
9S0U State 3 MAP 3 RNA Pol II activated elongation complex with SETD2 bound to distal upstream H3 Deposited 2025-07-17	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 32 PDB declaration: 35-meric	Chain X 1–531（531 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.72 Å
9S3G State 1 MAP3 RNA Pol II activated elongation complex with SETD2 and upstream hexasome Deposited 2025-07-24	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 31 PDB declaration: 34-meric	Chain X 1–531（531 aa）	Not recorded	ZN ZINC ION × 9 MG MAGNESIUM ION × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 6.40 Å

20 other PDB entries and 20 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	CDC73_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 2–101； UniProt 1–100 Author chain B； PDBConstruct 2–101； UniProt 1–100

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	5ydf
Deposition date deposition_date	2017-09-13
Structure title title	Crystal structure of a disease-related gene, hCDC73(1-100)
Keywords keywords	Tumor suppressor, cancer, TRANSCRIPTION; TRANSCRIPTION
Experimental Method method	X-RAY DIFFRACTION

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3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier	22.61 Å
Radius of gyration Rg (electron density) rg_electron	22.04 Å
Forward intensity I(0) i0	8554940.00
Molecular weight molecular_weight	22662.0 kDa
Excluded volume excluded_volume	28814 Å³
Envelope volume envelope_volume	35836 Å³
Hydration-shell volume shell_volume	14990 Å³
Envelope diameter envelope_diameter	81.6 Å
Shell Rg shell_rg	26.34 Å
Envelope Rg envelope_rg	22.29 Å
Shape Rg shape_rg	22.03 Å
Total Rg total_rg	22.74 Å
Total atoms total_atoms	1608
Residues n_residues	196
Spherical-harmonic order n_harmonics	20
q range q_range	— – 0.5000 Å⁻¹
Data points n_points	101
Shell type shell_type	directional
Solvent electron density solvent_density	0.3340 e/Å³
Shell contrast contrast_shell	0.0300 e/Å³
CRYSOL version crysol_version	4.1.3

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4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax	80.8 Å
Rg (real space) rg_real	22.80 Å
Rg uncertainty (real space) rg_real_error	0.79 Å
I(0) (real space) i0_real	8.5550e+06
I(0) uncertainty (real space) i0_real_error	1.2550e+05
Rg (reciprocal space) rg_reciprocal	22.76 Å
I(0) (reciprocal space) i0_reciprocal	8555000.0000
Solution quality estimate total_estimate	0.8138
Solution quality rating solution_quality	GOOD a GOOD solution
P(r) peaks n_peaks	2
Primary peak position r_peak_primary	22.0 Å
Skewness Skewness skewness	0.513
Kurtosis Kurtosis kurtosis	-0.361
Angular range angular_range	— – 0.3500 Å⁻¹
Current regularization parameter α current_alpha	0.0000
Highest regularization parameter α highest_alpha	1274000.0000
Real-space data points n_real_points	67
GNOM version gnom_version	4.1.3
Quality Criteria quality_criteria	AN1: 0.000; Oscil: 0.634; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.685; Smooth: 0.990

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5. Crystallography and Experiment 5. Crystallography & Experiment

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6. Entities and Polymers Entities & Polymers (2)

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8. Citations (1)

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Unit-cell length a length_a	28.590 Å
Unit-cell length b length_b	53.504 Å
Unit-cell length c length_c	65.734 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	95.66 °
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	1.399 Å
Low-resolution limit resolution_low	19.489 Å
R factor r_factor	0.1372
R_work r_work	0.1352
R_free r_free	0.1742

Description description	Parafibromin
Molecular weight formula_weight	11650.3 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	2009

Crystal structure of a disease-related gene, hCDC73(1-100)

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

Parafibromin

State in the Current Structure

Other States of the Same Protein in the Database

SAXS scattering curve SAXS Profile

P(r) Distance Distribution P(r) Distribution

2. Structure Basics 2. Structure Basics

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

5. Crystallography and Experiment 5. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

6. Entities and Polymers Entities & Polymers (2)

Entity 1 Entity 1 polymer

Polymer Polymer

来源 Source

Entity 2 Entity 2 water

8. Citations (1)

9. Files and Curves (10)

Files (7)

Curves (3)

来源生物 organism	Homo sapiens
通用名 common_name	Human
NCBI Class编号 ncbi_taxonomy_id	9606
宿主生物 host_organism	Escherichia coli

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	348

fit	/app/data/saxs_computation/yd/5ydf/5ydf.fit
pddf	/app/data/pr_computation/yd/5ydf/5ydf.pr.out
profile	/app/data/saxs_computation/yd/5ydf/5ydf.dat