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2lrl

Solution Structures of the IIA(Chitobiose)-HPr complex of the N,N'-Diacetylchitobiose Branch of the Escherichia coli Phosphotransferase System

Method: SOLUTION NMR
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1. Protein Identity and Related Structures Protein Identity & Related Structures

;N,N'-diacetylchitobiose-specific phosphotransferase enzyme IIA component ;

Escherichia coli

UniProt P69791

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 4 Phosphocarrier protein HPr × 1 （P0AA04） PHOSPHITE ION × 1 Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
2lrk 2lrl 2wwv 2wy2

4 assemblies

View Construct and Data Evidence
UniProt name PTQA_ECOLI
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–103； UniProt 14–116 Author chain B； PDBConstruct 1–103； UniProt 14–116 Author chain C； PDBConstruct 1–103； UniProt 14–116

Phosphocarrier protein HPr

Escherichia coli

UniProt P0AA04

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 4 ;N,N'-diacetylchitobiose-specific phosphotransferase enzyme IIA component ; × 3 （P69791） PHOSPHITE ION × 1 Consistent with protein count

Other States of the Same Protein in the Database

Monomer
1cm2 1cm3 1hdn 1opd 1pfh 1poh 3ccd 3ccd

8 assemblies

Homodimer
3ccd

1 assemblies

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
1ggr 1j6t 1vrc 2jel 2lrk 2lrl 3eza 3ezb 3eze 4xwj 5ya0 5ya0

20 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name PTHP_ECOLI
Isoform —
PDB entities 2
Chains and sequence ranges Author chain D； PDBConstruct 1–85； UniProt 1–85

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_id2lrl
Deposition date deposition_date2012-04-06
Structure title titleSolution Structures of the IIA(Chitobiose)-HPr complex of the N,N'-Diacetylchitobiose Branch of the Escherichia coli Phosphotransferase System
Keywords keywordsprotein-protein complex, TRANSFERASE; TRANSFERASE
Experimental Method methodSOLUTION NMR
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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.

2lrl__assembly_1__model_8

Assembly 1 · Model 8 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

2lrl__assembly_1__model_8 | I(q)

10-2 10-1 105 106 107 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

2lrl__assembly_1__model_8 | P(r) · Pending

The new assembly/model P(r) has not been calculated yet This placeholder does not display legacy data r (Angstrom) P(r)
P(r) will be calculated and displayed separately for the same assembly/model.
Rg（Guinier）23.40 Å
Rg (electron density)22.32 Å
Total Rg23.15 Å
Atom count6109
Residues394
Excluded volume53938 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 2lrl__assembly_1__model_1 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 2 2lrl__assembly_1__model_2 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 3 2lrl__assembly_1__model_3 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 4 2lrl__assembly_1__model_4 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 5 2lrl__assembly_1__model_5 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 6 2lrl__assembly_1__model_6 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 7 2lrl__assembly_1__model_7 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 8 2lrl__assembly_1__model_8 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 9 2lrl__assembly_1__model_9 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 10 2lrl__assembly_1__model_10 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 11 2lrl__assembly_1__model_11 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 12 2lrl__assembly_1__model_12 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 13 2lrl__assembly_1__model_13 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 14 2lrl__assembly_1__model_14 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 15 2lrl__assembly_1__model_15 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 16 2lrl__assembly_1__model_16 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 17 2lrl__assembly_1__model_17 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 18 2lrl__assembly_1__model_18 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 19 2lrl__assembly_1__model_19 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 20 2lrl__assembly_1__model_20 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 (3)

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6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_idd2lrla_
Class classa — All alpha proteins
Fold Fold folda.7 — Spectrin repeat-like
Superfamily Superfamily superfamilya.7.2 — Enzyme IIa from lactose specific PTS, IIa-lac
Family Family familya.7.2.0 — automated matches
Domain ID domain_idd2lrlb_
Class classa — All alpha proteins
Fold Fold folda.7 — Spectrin repeat-like
Superfamily Superfamily superfamilya.7.2 — Enzyme IIa from lactose specific PTS, IIa-lac
Family Family familya.7.2.0 — automated matches
Domain ID domain_idd2lrlc_
Class classa — All alpha proteins
Fold Fold folda.7 — Spectrin repeat-like
Superfamily Superfamily superfamilya.7.2 — Enzyme IIa from lactose specific PTS, IIa-lac
Family Family familya.7.2.0 — automated matches
Domain ID domain_idd2lrld_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.94 — HPr-like
Superfamily Superfamily superfamilyd.94.1 — HPr-like
Family Family familyd.94.1.1 — HPr-like

CATH v4.4 (4 domains)

Domain ID domain_id2lrlA00
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily80 — Phosphotransferase system, lactose/cellobiose-type IIA subunit
Domain ID domain_id2lrlB00
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily80 — Phosphotransferase system, lactose/cellobiose-type IIA subunit
Domain ID domain_id2lrlC00
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily80 — Phosphotransferase system, lactose/cellobiose-type IIA subunit
Domain ID domain_id2lrlD00
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology1340 — Histidine-containing Protein; Chain: A;
Homologous superfamily homologous superfamily10 — HPr-like
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7. Citations (1)