SAXSdb — 1jl2

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

Chimera of Ribonuclease HI, Ribonuclease H

Escherichia coli (strain K12)

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Insufficient information	Homooligomer	Protein 4	water × 4	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RNH_ECOLI
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–42； UniProt 1–42 Author chain A； PDBConstruct 124–156； UniProt 123–155 Author chain B； PDBConstruct 1–42； UniProt 1–42 Author chain B； PDBConstruct 124–156； UniProt 123–155 Author chain C； PDBConstruct 1–42； UniProt 1–42 Author chain C； PDBConstruct 124–156； UniProt 123–155 Author chain D； PDBConstruct 1–42； UniProt 1–42 Author chain D； PDBConstruct 124–156； UniProt 123–155

Chimera of Ribonuclease HI, Ribonuclease H

Escherichia coli (strain K12)

UniProt P29253

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Insufficient information	Homooligomer	Protein 4	water × 4	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RNH_THET8
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 43–123； UniProt 47–127 Author chain B； PDBConstruct 43–123； UniProt 47–127 Author chain C； PDBConstruct 43–123； UniProt 47–127 Author chain D； PDBConstruct 43–123； UniProt 47–127

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	1jl2
Deposition date deposition_date	2001-07-13
Structure title title	Crystal structure of TCEO RNase H-a chimera combining the folding core from T. thermophilus RNase H and the remaining region of E. coli RNase H
Keywords keywords	mixed alpha-beta protein, 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.

1jl2__assembly_1__model_1

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

Download this curve (.dat)

1jl2__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1jl2__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	28.50 Å
Rg (electron density)	27.67 Å
Total Rg	28.44 Å
Atom count	4424
Residues	562
Excluded volume	77842 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1jl2__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 (2)

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6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_id	d1jl2a_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.55 — Ribonuclease H-like motif
Superfamily Superfamily superfamily	c.55.3 — Ribonuclease H-like
Family Family family	c.55.3.1 — Ribonuclease H

Domain ID domain_id	d1jl2b_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.55 — Ribonuclease H-like motif
Superfamily Superfamily superfamily	c.55.3 — Ribonuclease H-like
Family Family family	c.55.3.1 — Ribonuclease H

Domain ID domain_id	d1jl2c_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.55 — Ribonuclease H-like motif
Superfamily Superfamily superfamily	c.55.3 — Ribonuclease H-like
Family Family family	c.55.3.1 — Ribonuclease H

Domain ID domain_id	d1jl2d_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.55 — Ribonuclease H-like motif
Superfamily Superfamily superfamily	c.55.3 — Ribonuclease H-like
Family Family family	c.55.3.1 — Ribonuclease H

CATH v4.4 (4 domains)

Domain ID domain_id	1jl2A00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	420 — Nucleotidyltransferase; domain 5
Homologous superfamily homologous superfamily	10 — Ribonuclease H-like superfamily/Ribonuclease H

Domain ID domain_id	1jl2B00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	420 — Nucleotidyltransferase; domain 5
Homologous superfamily homologous superfamily	10 — Ribonuclease H-like superfamily/Ribonuclease H

Domain ID domain_id	1jl2C00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	420 — Nucleotidyltransferase; domain 5
Homologous superfamily homologous superfamily	10 — Ribonuclease H-like superfamily/Ribonuclease H

Domain ID domain_id	1jl2D00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	420 — Nucleotidyltransferase; domain 5
Homologous superfamily homologous superfamily	10 — Ribonuclease H-like superfamily/Ribonuclease H

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Unit-cell length a length_a	56.195 Å
Unit-cell length b length_b	87.033 Å
Unit-cell length c length_c	60.687 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	91.87 °
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	1.760 Å
Low-resolution limit resolution_low	20.000 Å
R factor r_factor	—
R_work r_work	0.2486
R_free r_free	0.2859

Description description	Chimera of Ribonuclease HI, Ribonuclease H
Molecular weight formula_weight	17601.0 kDa
EC 编号 ec_number	3.1.26.4
Source method src_method	man
Copy count entity_count	4

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D
Atom count atom_count	4705

Crystal structure of TCEO RNase H-a chimera combining the folding core from T. thermophilus RNase H and the remaining region of E. coli RNase H

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

Chimera of Ribonuclease HI, Ribonuclease H

State in the Current Structure

Other States of the Same Protein in the Database

Chimera of Ribonuclease HI, Ribonuclease H

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

1jl2__assembly_1__model_1

1jl2__assembly_1__model_1 | I(q)

1jl2__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) 8 domains

SCOP 2.08 (4 domains)

CATH v4.4 (4 domains)

7. Citations (1)

Source organism organism	Escherichia coli (strain K12)
NCBI taxonomy ID ncbi_taxonomy_id	83333
Host organism host_organism	Escherichia coli BL21

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	281

Crystal structure of TCEO RNase H-a chimera combining the folding core from T. thermophilus RNase H and the remaining region of E. coli RNase H

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

Chimera of Ribonuclease HI, Ribonuclease H

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Chimera of Ribonuclease HI, Ribonuclease H

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

1jl2__assembly_1__model_1

1jl2__assembly_1__model_1 | I(q)

1jl2__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) 8 domains

SCOP 2.08 (4 domains)

CATH v4.4 (4 domains)

7. Citations (1)