SAXSdb — 2n5t

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

Phosphoenolpyruvate-protein phosphotransferase

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	PT1_ECOLI
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–575； UniProt 1–575 Author chain B； PDBConstruct 1–575； UniProt 1–575

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	2n5t
Deposition date deposition_date	2015-07-28
Structure title title	Ensemble solution structure of the phosphoenolpyruvate-Enzyme I complex from the bacterial phosphotransferase system
Keywords keywords	TRANSFERASE; TRANSFERASE

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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.

2n5t__assembly_1__model_3

Assembly 1 · Model 3 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

2n5t__assembly_1__model_3 | I(q)

100 plotted points; both axes use logarithmic scales.

2n5t__assembly_1__model_3 | P(r) · Pending

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

Rg（Guinier）	37.24 Å
Rg (electron density)	36.50 Å
Total Rg	36.94 Å
Atom count	17910
Residues	1146
Excluded volume	158810 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2n5t__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	2	`2n5t__assembly_1__model_2`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	3	`2n5t__assembly_1__model_3`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	4	`2n5t__assembly_1__model_4`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	5	`2n5t__assembly_1__model_5`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	6	`2n5t__assembly_1__model_6`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	7	`2n5t__assembly_1__model_7`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	8	`2n5t__assembly_1__model_8`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	9	`2n5t__assembly_1__model_9`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	10	`2n5t__assembly_1__model_10`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	11	`2n5t__assembly_1__model_11`	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) 6 domains

CATH v4.4 (6 domains)

Domain ID domain_id	2n5tA01
Class class	3 — Alpha Beta
Architecture architecture	50 — 3-Layer(bba) Sandwich
Topology topology	30 — Glucose Oxidase; domain 1
Homologous superfamily homologous superfamily	10 — Phosphohistidine domain

Domain ID domain_id	2n5tA02
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	274 — Enzyme I; Chain A, domain 2
Homologous superfamily homologous superfamily	10 — PtsI, HPr-binding domain

Domain ID domain_id	2n5tA03
Class class	3 — Alpha Beta
Architecture architecture	20 — Alpha-Beta Barrel
Topology topology	20 — TIM Barrel
Homologous superfamily homologous superfamily	60 — Phosphoenolpyruvate-binding domains

Domain ID domain_id	2n5tB01
Class class	3 — Alpha Beta
Architecture architecture	50 — 3-Layer(bba) Sandwich
Topology topology	30 — Glucose Oxidase; domain 1
Homologous superfamily homologous superfamily	10 — Phosphohistidine domain

Domain ID domain_id	2n5tB02
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	274 — Enzyme I; Chain A, domain 2
Homologous superfamily homologous superfamily	10 — PtsI, HPr-binding domain

Domain ID domain_id	2n5tB03
Class class	3 — Alpha Beta
Architecture architecture	20 — Alpha-Beta Barrel
Topology topology	20 — TIM Barrel
Homologous superfamily homologous superfamily	60 — Phosphoenolpyruvate-binding domains

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Description description	Phosphoenolpyruvate-protein phosphotransferase
Molecular weight formula_weight	63635.6 kDa
EC 编号 ec_number	2.7.3.9
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	197010

Source organism organism	Escherichia coli
NCBI taxonomy ID ncbi_taxonomy_id	83333
Host organism host_organism	Escherichia coli

Ensemble solution structure of the phosphoenolpyruvate-Enzyme I complex from the bacterial phosphotransferase system

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

Phosphoenolpyruvate-protein phosphotransferase

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

2n5t__assembly_1__model_3

2n5t__assembly_1__model_3 | I(q)

2n5t__assembly_1__model_3 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

5. Entities and Polymers Entities & Polymers (1)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

6. Fold Classification (SCOP + CATH) 6 domains

CATH v4.4 (6 domains)

7. Citations (1)

Ensemble solution structure of the phosphoenolpyruvate-Enzyme I complex from the bacterial phosphotransferase system

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

Phosphoenolpyruvate-protein phosphotransferase

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

2n5t__assembly_1__model_3

2n5t__assembly_1__model_3 | I(q)

2n5t__assembly_1__model_3 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

5. Entities and Polymers Entities & Polymers (1)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

6. Fold Classification (SCOP + CATH) 6 domains

CATH v4.4 (6 domains)

7. Citations (1)