SAXSdb — 1h6j

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

3-DEOXY-MANNO-OCTULOSONATE CYTIDYLYLTRANSFERASE

ESCHERICHIA COLI

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	No other associated polymer	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	KSU5_ECOLI
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–245； UniProt 1–245 Author chain B； PDBConstruct 1–245； UniProt 1–245

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	1h6j
Deposition date deposition_date	2001-06-17
Structure title title	The three-dimensional structure of capsule-specific CMP:2-keto-3-deoxy-manno-octonic acid synthetase from Escherichia coli
Keywords keywords	NUCLEOTIDYLTRANSFERASE, CMP-KDO SYNTHETASE, CAPSULAR POLYSACCHARIDE, SACCHARIDE ACTIVATION; NUCLEOTIDYLTRANSFERASE
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.

1h6j__assembly_1__model_1

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

Download this curve (.dat)

1h6j__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1h6j__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	26.76 Å
Rg (electron density)	26.69 Å
Total Rg	26.94 Å
Atom count	0
Residues	0
Excluded volume	65438 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1h6j__assembly_1__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 (1)

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6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (2 domains)

Domain ID domain_id	d1h6ja_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.68 — Nucleotide-diphospho-sugar transferases
Superfamily Superfamily superfamily	c.68.1 — Nucleotide-diphospho-sugar transferases
Family Family family	c.68.1.13 — Cytidylytransferase

Domain ID domain_id	d1h6jb_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.68 — Nucleotide-diphospho-sugar transferases
Superfamily Superfamily superfamily	c.68.1 — Nucleotide-diphospho-sugar transferases
Family Family family	c.68.1.13 — Cytidylytransferase

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Unit-cell length a length_a	46.090 Å
Unit-cell length b length_b	133.460 Å
Unit-cell length c length_c	48.330 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	102.51 °
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	2.320 Å
Low-resolution limit resolution_low	10.000 Å
R factor r_factor	0.2250
R_work r_work	0.2250
R_free r_free	0.2660

Description description	3-DEOXY-MANNO-OCTULOSONATE CYTIDYLYLTRANSFERASE
Molecular weight formula_weight	27059.9 kDa
EC 编号 ec_number	2.7.7.38
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	482

The three-dimensional structure of capsule-specific CMP:2-keto-3-deoxy-manno-octonic acid synthetase from Escherichia coli

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

3-DEOXY-MANNO-OCTULOSONATE CYTIDYLYLTRANSFERASE

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

1h6j__assembly_1__model_1

1h6j__assembly_1__model_1 | I(q)

1h6j__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 (1)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (2 domains)

7. Citations (1)

Source organism organism	ESCHERICHIA COLI
NCBI taxonomy ID ncbi_taxonomy_id	562
Host organism host_organism	ESCHERICHIA COLI

The three-dimensional structure of capsule-specific CMP:2-keto-3-deoxy-manno-octonic acid synthetase from Escherichia coli

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

3-DEOXY-MANNO-OCTULOSONATE CYTIDYLYLTRANSFERASE

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

1h6j__assembly_1__model_1

1h6j__assembly_1__model_1 | I(q)

1h6j__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 (1)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (2 domains)

7. Citations (1)