3vhz

Crystal structure of the trans isomer of the L93A mutant of bacteriorhodopsin

Method: X-RAY DIFFRACTION Dmax: 64.5 Å Quality: GOOD

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

Bacteriorhodopsin

Halobacterium

UniProt P02945

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Other combination Homooligomer Protein × 3 其他Polymer 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain A; UniProt 1–262 Mutation:L93A 3-O-sulfo-beta-D-galactopyranose-(1-6)-alpha-D-mannopyranose-(1-2)-alpha-D-glucopyranose × 3 RET RETINAL × 3 SOG octyl 1-thio-beta-D-glucopyranoside × 3 L2P 2,3-DI-PHYTANYL-GLYCEROL × 3 X-RAY DIFFRACTION X-ray crystallization conditions:membrane fusion method;pH 5.2;283 K;membrane fusion method, 2.3M ammonium sulfate, 0.05M Na-citrate, pH 5.2, temperature 283K Resolution 2.30 Å R-free 0.284

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.

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

View Construct and Data Evidence
UniProt name BACR_HALSA
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–262; UniProt 1–262

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 3vhz

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 3vhz
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2. Structure Basics 2. Structure Basics

Entry ID entry_id3vhz
Deposition date deposition_date2011-09-13
Structure title titleCrystal structure of the trans isomer of the L93A mutant of bacteriorhodopsin
Keywords keywordsseven transmembrane helices, cell membrane, retinal protein, light-driven proton pump, PROTON TRANSPORT; PROTON TRANSPORT
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier19.53
Radius of gyration Rg (electron density) rg_electron18.25
Forward intensity I(0) i09300400.00
Molecular weight molecular_weight26716.0 kDa
Excluded volume excluded_volume35189 ų
Envelope volume envelope_volume37814 ų
Hydration-shell volume shell_volume17584 ų
Envelope diameter envelope_diameter66.1
Shell Rg shell_rg24.26
Envelope Rg envelope_rg18.59
Shape Rg shape_rg18.22
Total Rg total_rg19.43
Total atoms total_atoms1885
Residues n_residues228
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 dmax64.5
Rg (real space) rg_real19.56
Rg uncertainty (real space) rg_real_error0.51
I(0) (real space) i0_real9.3000e+06
I(0) uncertainty (real space) i0_real_error1.2240e+05
Rg (reciprocal space) rg_reciprocal19.56
I(0) (reciprocal space) i0_reciprocal9300000.0000
Solution quality estimate total_estimate0.8023
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary21.8
Skewness Skewness skewness0.390
Kurtosis Kurtosis kurtosis-0.323
Angular range angular_range— – 0.4050 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha2090000.0000
Real-space data points n_real_points72
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.830; Stabil: 0.999; Sysdev: 1.000; Positv: 1.000; Valcen: 0.938; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (6)

7. Fold Classification (SCOP + CATH) 1 domains

CATH v4.4 (1 domains)

Domain ID domain_id3vhzA00
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology1070 — Rhopdopsin 7-helix transmembrane proteins
Homologous superfamily homologous superfamily10 — Rhodopsin 7-helix transmembrane proteins

8. Citations (1)

9. Files and Curves (10)