2lqi

NMR structure of FOXO3a transactivation domains (CR2C-CR3) in complex with CBP KIX domain (2l3b conformation)

Method: SOLUTION NMR Dmax: 52.2 Å Quality: GOOD

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

CREB-binding protein

Mus musculus

UniProt P45481

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 586–672 Fragment:KIX DOMAIN Forkhead box O3 × 1 SOLUTION NMR NMR measurement conditions:pH 6;303 K;Ionic strength (raw mmCIF value) 0.05;Pressure ambient NMR sample composition:0.6 mM [U-100% 13C; U-100% 15N] KIX, 0.6 mM CR2C-CR3, 20 mM MES, 50 mM sodium chloride, 1 mM DTT, 90% H2O/10% D2O | 90% H2O/10% D2O NMR sample composition:0.6 mM [U-100% 13C; U-100% 15N] KIX, 0.6 mM CR2C-CR3, 20 mM MES, 50 mM sodium chloride, 1 mM DTT, 100% D2O | 100% D2O NMR sample composition:0.6 mM [U-100% 13C; U-100% 15N] CR2C-CR3, 0.6 mM KIX, 20 mM MES, 50 mM sodium chloride, 1 mM DTT, 90% H2O/10% D2O | 90% H2O/10% D2O NMR sample composition:0.6 mM [U-100% 13C; U-100% 15N] CR2C-CR3, 0.6 mM KIX, 20 mM MES, 50 mM sodium chloride, 1 mM DTT, 100% D2O | 100% D2O Resolution not provided

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

23 other PDB entries and 25 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name CBP_MOUSE
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–87; UniProt 586–672

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.

SAXS scattering curve SAXS Profile

SAXS profile for 2lqi

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 2lqi
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2. Structure Basics 2. Structure Basics

Entry ID entry_id2lqi
Deposition date deposition_date2012-03-06
Structure title titleNMR structure of FOXO3a transactivation domains (CR2C-CR3) in complex with CBP KIX domain (2l3b conformation)
Keywords keywordspromiscuous binding, intrinsic disorder, transcription; TRANSCRIPTION
Experimental Method methodSOLUTION NMR

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier15.96
Radius of gyration Rg (electron density) rg_electron15.36
Forward intensity I(0) i01516900000.00
Molecular weight molecular_weight310330.0 kDa
Excluded volume excluded_volume380380 ų
Envelope volume envelope_volume38032 ų
Hydration-shell volume shell_volume17894 ų
Envelope diameter envelope_diameter58.2
Shell Rg shell_rg24.01
Envelope Rg envelope_rg18.22
Shape Rg shape_rg15.35
Total Rg total_rg15.52
Total atoms total_atoms42920
Residues n_residues2780
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 −1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax52.2
Rg (real space) rg_real15.91
Rg uncertainty (real space) rg_real_error0.32
I(0) (real space) i0_real1.5170e+09
I(0) uncertainty (real space) i0_real_error1.7880e+07
Rg (reciprocal space) rg_reciprocal15.92
I(0) (reciprocal space) i0_reciprocal1517000000.0000
Solution quality estimate total_estimate0.8169
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary18.5
Skewness Skewness skewness0.222
Kurtosis Kurtosis kurtosis-0.372
Angular range angular_range— – 0.5000 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha473400.0000
Real-space data points n_real_points80
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.873; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.995; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (2)

7. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd2lqia_
Class classa — All alpha proteins
Fold Fold folda.12 — Kix domain of CBP (creb binding protein)
Superfamily Superfamily superfamilya.12.1 — Kix domain of CBP (creb binding protein)
Family Family familya.12.1.1 — Kix domain of CBP (creb binding protein)

CATH v4.4 (2 domains)

Domain ID domain_id2lqiA00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology246 — Serum Albumin; Chain A, Domain 1
Homologous superfamily homologous superfamily20 — Coactivator CBP, KIX domain
Domain ID domain_id2lqiB00
Class class6 — Special
Architecture architecture10 — Helix non-globular
Topology topology250 — Single alpha-helices involved in coiled-coils or other helix-helix interfaces
Homologous superfamily homologous superfamily1690

8. Citations (1)

9. Files and Curves (10)