6vjk

Streptavidin mutant M88 (N49C/A86C)

Method: X-RAY DIFFRACTION Dmax: 132.6 Å Quality: GOOD

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

Streptavidin

Streptomyces avidinii

UniProt P22629

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 × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain A; UniProt 38–160 Chain B; UniProt 38–160 Chain E; UniProt 38–160 Chain F; UniProt 38–160 Mutation:N49C, A86C BTN BIOTIN × 4 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 7.5;298 K;21% PEG 3350, 8% glycerol, 100 mM Bis-Tris-Cl pH 7.5 Resolution 1.60 Å R-free 0.215
2 Protein homooligomer Homooligomer Protein × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain C; UniProt 38–160 Chain D; UniProt 38–160 Chain I; UniProt 38–160 Chain J; UniProt 38–160 Mutation:N49C, A86C BTN BIOTIN × 4 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 7.5;298 K;21% PEG 3350, 8% glycerol, 100 mM Bis-Tris-Cl pH 7.5 Resolution 1.60 Å R-free 0.215
3 Protein homooligomer Homooligomer Protein × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain G; UniProt 38–160 Chain H; UniProt 38–160 Chain K; UniProt 38–160 Chain L; UniProt 38–160 Mutation:N49C, A86C BTN BIOTIN × 4 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 7.5;298 K;21% PEG 3350, 8% glycerol, 100 mM Bis-Tris-Cl pH 7.5 Resolution 1.60 Å R-free 0.215

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.

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

View Construct and Data Evidence
UniProt name SAV_STRAV
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 2–124; UniProt 38–160 Author chain B; PDBConstruct 2–124; UniProt 38–160 Author chain C; PDBConstruct 2–124; UniProt 38–160 Author chain D; PDBConstruct 2–124; UniProt 38–160 Author chain E; PDBConstruct 2–124; UniProt 38–160 Author chain F; PDBConstruct 2–124; UniProt 38–160 Author chain G; PDBConstruct 2–124; UniProt 38–160 Author chain H; PDBConstruct 2–124; UniProt 38–160 Author chain I; PDBConstruct 2–124; UniProt 38–160 Author chain J; PDBConstruct 2–124; UniProt 38–160 Author chain K; PDBConstruct 2–124; UniProt 38–160 Author chain L; PDBConstruct 2–124; UniProt 38–160

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 6vjk

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id6vjk
Deposition date deposition_date2020-01-16
Structure title titleStreptavidin mutant M88 (N49C/A86C)
Keywords keywordsBiotin-binding protein, ANTIMICROBIAL PROTEIN; Biotin-binding protein
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier39.58
Radius of gyration Rg (electron density) rg_electron39.40
Forward intensity I(0) i0400320000.00
Molecular weight molecular_weight156090.0 kDa
Excluded volume excluded_volume192240 ų
Envelope volume envelope_volume258720 ų
Hydration-shell volume shell_volume56489 ų
Envelope diameter envelope_diameter144.3
Shell Rg shell_rg43.44
Envelope Rg envelope_rg38.92
Shape Rg shape_rg39.39
Total Rg total_rg39.68
Total atoms total_atoms11018
Residues n_residues1452
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 dmax132.6
Rg (real space) rg_real39.66
Rg uncertainty (real space) rg_real_error1.11
I(0) (real space) i0_real4.0030e+08
I(0) uncertainty (real space) i0_real_error6.8570e+06
Rg (reciprocal space) rg_reciprocal39.61
I(0) (reciprocal space) i0_reciprocal400300000.0000
Solution quality estimate total_estimate0.8491
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary49.7
Skewness Skewness skewness0.413
Kurtosis Kurtosis kurtosis-0.096
Angular range angular_range— – 0.2000 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha37040000.0000
Real-space data points n_real_points41
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.821; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.993; Smooth: 0.577

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 24 domains

SCOP 2.08 (12 domains)

Domain ID domain_idd6vjka_
Class classb — All beta proteins
Fold Fold foldb.61 — Streptavidin-like
Superfamily Superfamily superfamilyb.61.1 — Avidin/streptavidin
Family Family familyb.61.1.0 — automated matches
Domain ID domain_idd6vjkb_
Class classb — All beta proteins
Fold Fold foldb.61 — Streptavidin-like
Superfamily Superfamily superfamilyb.61.1 — Avidin/streptavidin
Family Family familyb.61.1.0 — automated matches
Domain ID domain_idd6vjkc_
Class classb — All beta proteins
Fold Fold foldb.61 — Streptavidin-like
Superfamily Superfamily superfamilyb.61.1 — Avidin/streptavidin
Family Family familyb.61.1.0 — automated matches
Domain ID domain_idd6vjkd_
Class classb — All beta proteins
Fold Fold foldb.61 — Streptavidin-like
Superfamily Superfamily superfamilyb.61.1 — Avidin/streptavidin
Family Family familyb.61.1.0 — automated matches
Domain ID domain_idd6vjke_
Class classb — All beta proteins
Fold Fold foldb.61 — Streptavidin-like
Superfamily Superfamily superfamilyb.61.1 — Avidin/streptavidin
Family Family familyb.61.1.0 — automated matches
Domain ID domain_idd6vjkf_
Class classb — All beta proteins
Fold Fold foldb.61 — Streptavidin-like
Superfamily Superfamily superfamilyb.61.1 — Avidin/streptavidin
Family Family familyb.61.1.0 — automated matches
Domain ID domain_idd6vjkg_
Class classb — All beta proteins
Fold Fold foldb.61 — Streptavidin-like
Superfamily Superfamily superfamilyb.61.1 — Avidin/streptavidin
Family Family familyb.61.1.0 — automated matches
Domain ID domain_idd6vjkh_
Class classb — All beta proteins
Fold Fold foldb.61 — Streptavidin-like
Superfamily Superfamily superfamilyb.61.1 — Avidin/streptavidin
Family Family familyb.61.1.0 — automated matches
Domain ID domain_idd6vjki_
Class classb — All beta proteins
Fold Fold foldb.61 — Streptavidin-like
Superfamily Superfamily superfamilyb.61.1 — Avidin/streptavidin
Family Family familyb.61.1.0 — automated matches
Domain ID domain_idd6vjkj_
Class classb — All beta proteins
Fold Fold foldb.61 — Streptavidin-like
Superfamily Superfamily superfamilyb.61.1 — Avidin/streptavidin
Family Family familyb.61.1.0 — automated matches
Domain ID domain_idd6vjkk_
Class classb — All beta proteins
Fold Fold foldb.61 — Streptavidin-like
Superfamily Superfamily superfamilyb.61.1 — Avidin/streptavidin
Family Family familyb.61.1.0 — automated matches
Domain ID domain_idd6vjkl_
Class classb — All beta proteins
Fold Fold foldb.61 — Streptavidin-like
Superfamily Superfamily superfamilyb.61.1 — Avidin/streptavidin
Family Family familyb.61.1.0 — automated matches

CATH v4.4 (12 domains)

Domain ID domain_id6vjkA01
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology128 — Lipocalin
Homologous superfamily homologous superfamily30 — Avidin-like
Domain ID domain_id6vjkB01
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology128 — Lipocalin
Homologous superfamily homologous superfamily30 — Avidin-like
Domain ID domain_id6vjkC01
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology128 — Lipocalin
Homologous superfamily homologous superfamily30 — Avidin-like
Domain ID domain_id6vjkD01
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology128 — Lipocalin
Homologous superfamily homologous superfamily30 — Avidin-like
Domain ID domain_id6vjkE01
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology128 — Lipocalin
Homologous superfamily homologous superfamily30 — Avidin-like
Domain ID domain_id6vjkF01
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology128 — Lipocalin
Homologous superfamily homologous superfamily30 — Avidin-like
Domain ID domain_id6vjkG01
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology128 — Lipocalin
Homologous superfamily homologous superfamily30 — Avidin-like
Domain ID domain_id6vjkH01
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology128 — Lipocalin
Homologous superfamily homologous superfamily30 — Avidin-like
Domain ID domain_id6vjkI01
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology128 — Lipocalin
Homologous superfamily homologous superfamily30 — Avidin-like
Domain ID domain_id6vjkJ01
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology128 — Lipocalin
Homologous superfamily homologous superfamily30 — Avidin-like
Domain ID domain_id6vjkK01
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology128 — Lipocalin
Homologous superfamily homologous superfamily30 — Avidin-like
Domain ID domain_id6vjkL01
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology128 — Lipocalin
Homologous superfamily homologous superfamily30 — Avidin-like

8. Citations (1)

9. Files and Curves (10)