2lp4

Solution structure of P1-CheY/P2 complex in bacterial chemotaxis

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

Chemotaxis protein CheA

Escherichia coli

UniProt P07363

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 2 Chemotaxis protein CheY × 1 (P0AE67) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name CHEA_ECOLI
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–225; UniProt 1–225

Chemotaxis protein CheY

Escherichia coli

UniProt P0AE67

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 2 Chemotaxis protein CheA × 1 (P07363) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name CHEY_ECOLI
Isoform —
PDB entities 2
Chains and sequence ranges Author chain Y; PDBConstruct 1–128; UniProt 2–129

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_id2lp4
Deposition date deposition_date2012-01-31
Structure title titleSolution structure of P1-CheY/P2 complex in bacterial chemotaxis
Keywords keywordsTwo Component Signaling system, Histidine phosphotransfer domain, Response Regulator, TRANSFERASE-SIGNALING PROTEIN complex; TRANSFERASE/SIGNALING PROTEIN
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.

2lp4__assembly_1__model_4

Assembly 1 · Model 4 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

2lp4__assembly_1__model_4 | I(q)

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

2lp4__assembly_1__model_4 | 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)24.00 Å
Rg (electron density)22.74 Å
Total Rg23.63 Å
Atom count5367
Residues353
Excluded volume48086 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 2lp4__assembly_1__model_1 dimeric (2) Success 4.1.3-1-20251215 (887e7ef) View Download
1 2 2lp4__assembly_1__model_2 dimeric (2) Success 4.1.3-1-20251215 (887e7ef) View Download
1 3 2lp4__assembly_1__model_3 dimeric (2) Success 4.1.3-1-20251215 (887e7ef) View Download
1 4 2lp4__assembly_1__model_4 dimeric (2) Success 4.1.3-1-20251215 (887e7ef) View Download
1 5 2lp4__assembly_1__model_5 dimeric (2) Success 4.1.3-1-20251215 (887e7ef) View Download
1 6 2lp4__assembly_1__model_6 dimeric (2) Success 4.1.3-1-20251215 (887e7ef) View Download
1 7 2lp4__assembly_1__model_7 dimeric (2) Success 4.1.3-1-20251215 (887e7ef) View Download
1 8 2lp4__assembly_1__model_8 dimeric (2) Success 4.1.3-1-20251215 (887e7ef) View Download
1 9 2lp4__assembly_1__model_9 dimeric (2) Success 4.1.3-1-20251215 (887e7ef) View Download
1 10 2lp4__assembly_1__model_10 dimeric (2) Success 4.1.3-1-20251215 (887e7ef) View Download
1 11 2lp4__assembly_1__model_11 dimeric (2) Success 4.1.3-1-20251215 (887e7ef) View Download
1 12 2lp4__assembly_1__model_12 dimeric (2) Success 4.1.3-1-20251215 (887e7ef) View Download
1 13 2lp4__assembly_1__model_13 dimeric (2) Success 4.1.3-1-20251215 (887e7ef) View Download
1 14 2lp4__assembly_1__model_14 dimeric (2) Success 4.1.3-1-20251215 (887e7ef) View Download
1 15 2lp4__assembly_1__model_15 dimeric (2) Success 4.1.3-1-20251215 (887e7ef) View Download
1 16 2lp4__assembly_1__model_16 dimeric (2) Success 4.1.3-1-20251215 (887e7ef) View Download
1 17 2lp4__assembly_1__model_17 dimeric (2) Success 4.1.3-1-20251215 (887e7ef) View Download
1 18 2lp4__assembly_1__model_18 dimeric (2) Success 4.1.3-1-20251215 (887e7ef) View Download
1 19 2lp4__assembly_1__model_19 dimeric (2) Success 4.1.3-1-20251215 (887e7ef) View Download
1 20 2lp4__assembly_1__model_20 dimeric (2) Success 4.1.3-1-20251215 (887e7ef) View Download
1 21 2lp4__assembly_1__model_21 dimeric (2) Success 4.1.3-1-20251215 (887e7ef) View Download
1 22 2lp4__assembly_1__model_22 dimeric (2) Success 4.1.3-1-20251215 (887e7ef) View Download
1 23 2lp4__assembly_1__model_23 dimeric (2) Success 4.1.3-1-20251215 (887e7ef) View Download
1 24 2lp4__assembly_1__model_24 dimeric (2) Success 4.1.3-1-20251215 (887e7ef) View Download
1 25 2lp4__assembly_1__model_25 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 (2)

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6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd2lp4y_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.23 — Flavodoxin-like
Superfamily Superfamily superfamilyc.23.1 — CheY-like
Family Family familyc.23.1.1 — CheY-related

CATH v4.4 (3 domains)

Domain ID domain_id2lp4A01
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology120 — Four Helix Bundle (Hemerythrin (Met), subunit A)
Homologous superfamily homologous superfamily160 — HPT domain
Domain ID domain_id2lp4A02
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily400 — CheY-binding domain of CheA
Domain ID domain_id2lp4Y00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily2300 — Response regulator
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7. Citations (1)