7xqc

Crystal structure of N-terminal domain of Rv2908c fused with Maltose Binding Protein (MBP)

Method: X-RAY DIFFRACTION Dmax: 136.7 Å Quality: GOOD

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

Fusion protein of Maltose-binding periplasmic protein and RNA-binding protein KhpA

Mycobacterium tuberculosis H37Rv

UniProt P0AEX9

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Insufficient information Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 27–392 Chain C; UniProt 27–392 Not recorded PEG DI(HYDROXYETHYL)ETHER × 2 X-RAY DIFFRACTION X-ray crystallization conditions:MICROBATCH;pH 7.5;291.15 K;20 mM Na/K Phosphate, 20% (v/v) PEG 3350 Resolution 2.80 Å R-free 0.254
2 Insufficient information Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain B; UniProt 27–392 Chain D; UniProt 27–392 Not recorded PEG DI(HYDROXYETHYL)ETHER × 2 X-RAY DIFFRACTION X-ray crystallization conditions:MICROBATCH;pH 7.5;291.15 K;20 mM Na/K Phosphate, 20% (v/v) PEG 3350 Resolution 2.80 Å R-free 0.254

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.

366 other PDB entries and 490 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name MALE_ECOLI
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–366; UniProt 27–392 Author chain B; PDBConstruct 1–366; UniProt 27–392 Author chain C; PDBConstruct 1–366; UniProt 27–392 Author chain D; PDBConstruct 1–366; UniProt 27–392

Fusion protein of Maltose-binding periplasmic protein and RNA-binding protein KhpA

Mycobacterium tuberculosis H37Rv

UniProt P9WFM7

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Insufficient information Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 1–80 Chain C; UniProt 1–80 Not recorded PEG DI(HYDROXYETHYL)ETHER × 2 X-RAY DIFFRACTION X-ray crystallization conditions:MICROBATCH;pH 7.5;291.15 K;20 mM Na/K Phosphate, 20% (v/v) PEG 3350 Resolution 2.80 Å R-free 0.254
2 Insufficient information Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain B; UniProt 1–80 Chain D; UniProt 1–80 Not recorded PEG DI(HYDROXYETHYL)ETHER × 2 X-RAY DIFFRACTION X-ray crystallization conditions:MICROBATCH;pH 7.5;291.15 K;20 mM Na/K Phosphate, 20% (v/v) PEG 3350 Resolution 2.80 Å R-free 0.254

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.

No other PDB entry for the same UniProt protein was found.

View Construct and Data Evidence
UniProt name KHPA_MYCTU
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 371–450; UniProt 1–80 Author chain B; PDBConstruct 371–450; UniProt 1–80 Author chain C; PDBConstruct 371–450; UniProt 1–80 Author chain D; PDBConstruct 371–450; UniProt 1–80

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 7xqc

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 7xqc
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2. Structure Basics 2. Structure Basics

Entry ID entry_id7xqc
Deposition date deposition_date2022-05-07
Structure title titleCrystal structure of N-terminal domain of Rv2908c fused with Maltose Binding Protein (MBP)
Keywords keywordsRNA BINDING PROTEIN; RNA BINDING PROTEIN
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier41.38
Radius of gyration Rg (electron density) rg_electron40.71
Forward intensity I(0) i0470285000.00
Molecular weight molecular_weight181620.0 kDa
Excluded volume excluded_volume228950 ų
Envelope volume envelope_volume323270 ų
Hydration-shell volume shell_volume65111 ų
Envelope diameter envelope_diameter145.3
Shell Rg shell_rg46.64
Envelope Rg envelope_rg40.92
Shape Rg shape_rg40.69
Total Rg total_rg41.13
Total atoms total_atoms12836
Residues n_residues1655
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 dmax136.7
Rg (real space) rg_real41.39
Rg uncertainty (real space) rg_real_error1.23
I(0) (real space) i0_real4.7030e+08
I(0) uncertainty (real space) i0_real_error8.1160e+06
Rg (reciprocal space) rg_reciprocal41.38
I(0) (reciprocal space) i0_reciprocal470300000.0000
Solution quality estimate total_estimate0.8704
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary46.8
Skewness Skewness skewness0.371
Kurtosis Kurtosis kurtosis-0.338
Angular range angular_range— – 0.1900 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha62230000.0000
Real-space data points n_real_points39
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.841; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.998; Smooth: 0.790

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 4 domains

CATH v4.4 (4 domains)

Domain ID domain_id7xqcA01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology190 — D-Maltodextrin-Binding Protein; domain 2
Homologous superfamily homologous superfamily10 — Periplasmic binding protein-like II
Domain ID domain_id7xqcB01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology190 — D-Maltodextrin-Binding Protein; domain 2
Homologous superfamily homologous superfamily10 — Periplasmic binding protein-like II
Domain ID domain_id7xqcC01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology190 — D-Maltodextrin-Binding Protein; domain 2
Homologous superfamily homologous superfamily10 — Periplasmic binding protein-like II
Domain ID domain_id7xqcD01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology190 — D-Maltodextrin-Binding Protein; domain 2
Homologous superfamily homologous superfamily10 — Periplasmic binding protein-like II

8. Citations (1)

9. Files and Curves (10)