6r7s

Human Serum Albumin, complexed with Sulfasalazine

Method: X-RAY DIFFRACTION Dmax: 88.5 Å Quality: EXCELLENT

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

Serum albumin

OrganismNot specified

UniProt P02768

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 monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain A; UniProt 25–609 Not recorded DMS DIMETHYL SULFOXIDE × 2 SO4 SULFATE ION × 1 SAS 2-HYDROXY-(5-([4-(2-PYRIDINYLAMINO)SULFONYL]PHENYL)AZO)BENZOIC ACID × 3 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 7.5;293 K;HSA was dissolved in 50 mM potassium phosphate, 150 mM sodium chloride (pH 7.5) and concentrated to 2 mM (140 mg/mL). The HSA solution was incubated with a six fold excess of sulfasalazine at 4-5 degrees C for 4 hours.The crystal was grown by the hanging drop vapor diffusion method using a reservoir solution containing buffer (2.5 mM potassium phosphate, 7.5 mM sodium chloride, pH 7.0), 0.3% glycerol and polyethylene glycol 3350 (~30%). For crystallization 1 uL protein solution was equilibrated against 1 uL of reservoir solution. Resolution 2.21 Å R-free 0.275

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.

187 other PDB entries and 271 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name ALBU_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–585; UniProt 25–609

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 6r7s

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 6r7s
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2. Structure Basics 2. Structure Basics

Entry ID entry_id6r7s
Deposition date deposition_date2019-03-29
Structure title titleHuman Serum Albumin, complexed with Sulfasalazine
Keywords keywordsSerum Albumin binding, Fluorescent probe, drug tranport, LIPID BINDING PROTEIN; LIPID BINDING PROTEIN
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier27.31
Radius of gyration Rg (electron density) rg_electron26.34
Forward intensity I(0) i070587000.00
Molecular weight molecular_weight64462.0 kDa
Excluded volume excluded_volume80117 ų
Envelope volume envelope_volume98880 ų
Hydration-shell volume shell_volume31546 ų
Envelope diameter envelope_diameter93.0
Shell Rg shell_rg33.24
Envelope Rg envelope_rg26.44
Shape Rg shape_rg26.34
Total Rg total_rg27.06
Total atoms total_atoms4511
Residues n_residues567
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 dmax88.5
Rg (real space) rg_real27.23
Rg uncertainty (real space) rg_real_error0.53
I(0) (real space) i0_real7.0590e+07
I(0) uncertainty (real space) i0_real_error1.0030e+06
Rg (reciprocal space) rg_reciprocal27.26
I(0) (reciprocal space) i0_reciprocal70590000.0000
Solution quality estimate total_estimate0.9004
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary33.6
Skewness Skewness skewness0.243
Kurtosis Kurtosis kurtosis-0.421
Angular range angular_range— – 0.2900 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha12270000.0000
Real-space data points n_real_points59
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.904; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 1.000; Smooth: 0.990

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (5)

7. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (3 domains)

Domain ID domain_idd6r7sa1
Class classa — All alpha proteins
Fold Fold folda.126 — Serum albumin-like
Superfamily Superfamily superfamilya.126.1 — Serum albumin-like
Family Family familya.126.1.1 — Serum albumin-like
Domain ID domain_idd6r7sa2
Class classa — All alpha proteins
Fold Fold folda.126 — Serum albumin-like
Superfamily Superfamily superfamilya.126.1 — Serum albumin-like
Family Family familya.126.1.1 — Serum albumin-like
Domain ID domain_idd6r7sa3
Class classa — All alpha proteins
Fold Fold folda.126 — Serum albumin-like
Superfamily Superfamily superfamilya.126.1 — Serum albumin-like
Family Family familya.126.1.1 — Serum albumin-like

CATH v4.4 (3 domains)

Domain ID domain_id6r7sA01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology246 — Serum Albumin; Chain A, Domain 1
Homologous superfamily homologous superfamily10
Domain ID domain_id6r7sA02
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology246 — Serum Albumin; Chain A, Domain 1
Homologous superfamily homologous superfamily10
Domain ID domain_id6r7sA03
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology246 — Serum Albumin; Chain A, Domain 1
Homologous superfamily homologous superfamily10

8. Citations (1)

9. Files and Curves (10)