2kod

A high-resolution NMR structure of the dimeric C-terminal domain of HIV-1 CA

Method: SOLUTION NMR Dmax: 49.1 Å Quality: REASONABLE

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

HIV-1 CA C-terminal domain

HIV-1 M:B_HXB2R

UniProt P04585

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 homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 276–363 Chain B; UniProt 276–363 Not recorded No other associated polymer SOLUTION NMR NMR measurement conditions:pH 6.5;298 K;Ionic strength (raw mmCIF value) 25;Pressure ambient NMR sample composition:1.4 mM [U-100% 13C; U-100% 15N] HIV-1 CA C-terminal domain, 1.4 mM NATURAL ABUNDANCE HIV-1 CA C-terminal domain, 25 mM sodium phosphate, 2 mM DTT, 0.02 % sodium azide, 93% H2O/7% D2O | 93% H2O/7% D2O NMR sample composition:2 mM [U-100% 13C; U-100% 15N] HIV-1 CA C-terminal domain, 25 mM sodium phosphate, 2 mM DTT, 0.02 % sodium azide, 93% H2O/7% D2O | 93% H2O/7% 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.

178 other PDB entries and 201 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name POL_HV1H2
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–88; UniProt 276–363 Author chain B; PDBConstruct 1–88; UniProt 276–363

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 2kod

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id2kod
Deposition date deposition_date2009-09-18
Structure title titleA high-resolution NMR structure of the dimeric C-terminal domain of HIV-1 CA
Keywords keywordsHIV-1 capsid, C-terminal domain, VIRAL PROTEIN; VIRAL PROTEIN
Experimental Method methodSOLUTION NMR

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

Radius of gyration Rg (Guinier) rg_guinier18.89
Radius of gyration Rg (electron density) rg_electron18.84
Forward intensity I(0) i04909560000.00
Molecular weight molecular_weight589700.0 kDa
Excluded volume excluded_volume735880 ų
Envelope volume envelope_volume75974 ų
Hydration-shell volume shell_volume25281 ų
Envelope diameter envelope_diameter94.4
Shell Rg shell_rg32.46
Envelope Rg envelope_rg26.92
Shape Rg shape_rg18.81
Total Rg total_rg19.10
Total atoms total_atoms82860
Residues n_residues5280
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 dmax49.1
Rg (real space) rg_real17.89
Rg uncertainty (real space) rg_real_error0.07
I(0) (real space) i0_real4.6680e+09
I(0) uncertainty (real space) i0_real_error3.9440e+07
Rg (reciprocal space) rg_reciprocal18.99
I(0) (reciprocal space) i0_reciprocal4910000000.0000
Solution quality estimate total_estimate0.6862
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks0
Primary peak position r_peak_primary
Skewness Skewness skewness0.284
Kurtosis Kurtosis kurtosis-0.585
Angular range angular_range— – 0.4200 −1
Current regularization parameter α current_alpha4.1710
Highest regularization parameter α highest_alpha1135000.0000
Real-space data points n_real_points73
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.002; Oscil: 0.998; Stabil: 0.980; Sysdev: 0.000; Positv: 1.000; Valcen: 0.989; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (1)

7. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd2koda_
Class classa — All alpha proteins
Fold Fold folda.28 — Acyl carrier protein-like
Superfamily Superfamily superfamilya.28.3 — Retrovirus capsid dimerization domain-like
Family Family familya.28.3.1 — Retrovirus capsid protein C-terminal domain
Domain ID domain_idd2kodb_
Class classa — All alpha proteins
Fold Fold folda.28 — Acyl carrier protein-like
Superfamily Superfamily superfamilya.28.3 — Retrovirus capsid dimerization domain-like
Family Family familya.28.3.1 — Retrovirus capsid protein C-terminal domain

CATH v4.4 (2 domains)

Domain ID domain_id2kodA00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology1200 — Non-ribosomal Peptide Synthetase Peptidyl Carrier Protein; Chain A
Homologous superfamily homologous superfamily30 — Retrovirus capsid C-terminal domain
Domain ID domain_id2kodB00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology1200 — Non-ribosomal Peptide Synthetase Peptidyl Carrier Protein; Chain A
Homologous superfamily homologous superfamily30 — Retrovirus capsid C-terminal domain

8. Citations (1)

9. Files and Curves (10)