SAXSdb — 8hch

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

Three-prime repair exonuclease 1

Mus musculus

State in the Current Structure

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

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	TREX1_MOUSE
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 20–252； UniProt 10–242 Author chain B； PDBConstruct 20–252； UniProt 10–242 Author chain C； PDBConstruct 20–252； UniProt 10–242 Author chain D； PDBConstruct 20–252； UniProt 10–242

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	8hch
Deposition date deposition_date	2022-11-01
Structure title title	Crystal structure of mTREX1-Uridine complex
Keywords keywords	TREX1, DEDDh exonuclease, DNase, RNase, Uridine, HYDROLASE; HYDROLASE
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.

8hch__assembly_1__model_1

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

Download this curve (.dat)

8hch__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

8hch__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	22.74 Å
Rg (electron density)	21.56 Å
Total Rg	22.33 Å
Atom count	6813
Residues	436
Excluded volume	60743 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`8hch__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`8hch__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 (4)

Entity 1 Entity 1 polymer

Description description	Three-prime repair exonuclease 1
Molecular weight formula_weight	27447.2 kDa
EC 编号 ec_number	3.1.11.2
Source method src_method	man
Copy count entity_count	4

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D
Atom count atom_count	14108

MGSSHHHHHHSSGLVPRGSHMQTLIFLDLEATGLPSSRPEVTELCLLAVHRRALENTSISQGHPPPVPRPPRVVDKLSLCIAPGKACSPGASEITGLSKAELEVQGRQRFDDNLAILLRAFLQRQPQPCCLVAHNGDRYDFPLLQTELARLSTPSPLDGTFCVDSIAALKALEQASSPSGNGSRKSYSLGSIYTRLYWQAPTDSHTAEGDVLTLLSICQWKPQALLQWVDEHARPFSTVKPMYGTPATTGTT

Source Source

Source organism organism	Mus musculus
Common name common_name	house mouse
NCBI taxonomy ID ncbi_taxonomy_id	10090
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	MAGNESIUM ION
Molecular weight formula_weight	24.3 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 3 Entity 3 non-polymer

Description description	URIDINE
Molecular weight formula_weight	244.2 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 4 Entity 4 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	458

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Unit-cell length a length_a	67.632 Å
Unit-cell length b length_b	81.149 Å
Unit-cell length c length_c	93.653 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	103.51 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	8

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

Resolution resolution	2.000 Å
Low-resolution limit resolution_low	24.690 Å
R factor r_factor	0.1901
R_work r_work	0.1870
R_free r_free	0.2275

Crystal structure of mTREX1-Uridine complex

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

Three-prime repair exonuclease 1

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

8hch__assembly_1__model_1

8hch__assembly_1__model_1 | I(q)

8hch__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 (4)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

7. Citations (1)

Crystal structure of mTREX1-Uridine complex

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

Three-prime repair exonuclease 1

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

8hch__assembly_1__model_1

8hch__assembly_1__model_1 | I(q)

8hch__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 (4)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

7. Citations (1)