SAXSdb — 4eyh

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

DNA polymerase iota

Homo sapiens

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–DNA	Monomer	Protein 1 DNA 2	DNA template × 1 DNA primer × 1 2'-DEOXYCYTIDINE-5'-TRIPHOSPHATE × 1 MAGNESIUM ION × 3 water × 3	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	POLI_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain B； PDBConstruct 1–420； UniProt 26–445

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	4eyh
Deposition date deposition_date	2012-05-01
Structure title title	Human DNA polymerase iota incorporating dCTP opposite N-(deoxyguanosin-8-yl)-1-aminopyrene lesion
Keywords keywords	DNA polymerase, TRANSFERASE-DNA complex; TRANSFERASE/DNA
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.

4eyh__assembly_1__model_1

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

Download this curve (.dat)

4eyh__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

4eyh__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	23.31 Å
Rg (electron density)	23.05 Å
Total Rg	23.77 Å
Atom count	3205
Residues	391
Excluded volume	56217 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`4eyh__assembly_1__model_1`	trimeric （3）	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 (6)

Entity 1 Entity 1 polymer

Description description	DNA polymerase iota
Molecular weight formula_weight	47027.3 kDa
EC 编号 ec_number	2.7.7.7
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	B
Atom count atom_count	3238

MELADVGAAASSQGVHDQVLPTPNASSRVIVHVDLDCFYAQVEMISNPELKDKPLGVQQKYLVVTCNYEARKLGVKKLMNVRDAKEKCPQLVLVNGEDLTRYREMSYKVTELLEEFSPVVERLGFDENFVDLTEMVEKRLQQLQSDELSAVTVSGHVYNNQSINLLDVLHIRLLVGSQIAAEMREAMYNQLGLTGCAGVASNKLLAKLVSGVFKPNQQTVLLPESCQHLIHSLNHIKEIPGIGYKTAKCLEALGINSVRDLQTFSPKILEKELGISVAQRIQKLSFGEDNSPVILSGPPQSFSEEDSFKKCSSEVEAKNKIEELLASLLNRVCQDGRKPHTVRLIIRRYSSEKHYGRESRQCPIPSHVIQKLGTGNYDVMTPMVDILMKLFRNMVNVKMPFHLTLLSVCFCNLKALNTAK

Source Source

Source organism organism	Homo sapiens
Common name common_name	human
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 polymer

Description description	DNA template
Molecular weight formula_weight	2673.9 kDa
Source method src_method	syn
Copy count entity_count	1

Polymer Polymer

Polymer type type	polydeoxyribonucleotide
Chain IDs strand_id	T

XGGGTCCT

Entity 3 Entity 3 polymer

Description description	DNA primer
Molecular weight formula_weight	2107.4 kDa
Source method src_method	syn
Copy count entity_count	1

Polymer Polymer

Polymer type type	polydeoxyribonucleotide
Chain IDs strand_id	P

AGGACCC

Entity 4 Entity 4 non-polymer

Description description	2'-DEOXYCYTIDINE-5'-TRIPHOSPHATE
Molecular weight formula_weight	467.2 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 5 Entity 5 non-polymer

Description description	MAGNESIUM ION
Molecular weight formula_weight	24.3 kDa
Source method src_method	syn
Copy count entity_count	3

Entity 6 Entity 6 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	28

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6. Fold Classification (SCOP + CATH) 4 domains

CATH v4.4 (4 domains)

Domain ID domain_id	4eyhB01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily	270 — Reverse transcriptase/Diguanylate cyclase domain

Domain ID domain_id	4eyhB02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	1170 — MutS, DNA mismatch repair protein, domain I
Homologous superfamily homologous superfamily	60 —

Domain ID domain_id	4eyhB03
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	150 — DNA polymerase; domain 1
Homologous superfamily homologous superfamily	20 — 5' to 3' exonuclease, C-terminal subdomain

Domain ID domain_id	4eyhB04
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	1490 — Dna Ligase; domain 1
Homologous superfamily homologous superfamily	100 — DNA polymerase, Y-family, little finger domain

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Unit-cell length a length_a	98.046 Å
Unit-cell length b length_b	98.046 Å
Unit-cell length c length_c	194.649 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	120.00 °
Molecules per unit cell Z z_pdb	12

Space group space_group	P 65 2 2
Space-group number int_tables_number	179
Crystal system crystal_system	—

Resolution resolution	2.900 Å
Low-resolution limit resolution_low	32.093 Å
R factor r_factor	0.2419
R_work r_work	0.2386
R_free r_free	0.2809

Human DNA polymerase iota incorporating dCTP opposite N-(deoxyguanosin-8-yl)-1-aminopyrene lesion

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

DNA polymerase iota

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

4eyh__assembly_1__model_1

4eyh__assembly_1__model_1 | I(q)

4eyh__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 (6)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Entity 3 Entity 3 polymer

Polymer Polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 non-polymer

Entity 6 Entity 6 water

6. Fold Classification (SCOP + CATH) 4 domains

CATH v4.4 (4 domains)

7. Citations (1)

Human DNA polymerase iota incorporating dCTP opposite N-(deoxyguanosin-8-yl)-1-aminopyrene lesion

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

DNA polymerase iota

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

4eyh__assembly_1__model_1

4eyh__assembly_1__model_1 | I(q)

4eyh__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 (6)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Entity 3 Entity 3 polymer

Polymer Polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 non-polymer

Entity 6 Entity 6 water

6. Fold Classification (SCOP + CATH) 4 domains

CATH v4.4 (4 domains)

7. Citations (1)