1kt0

Structure of the Large FKBP-like Protein, FKBP51, Involved in Steroid Receptor Complexes

Method: X-RAY DIFFRACTION Dmax: 90.2 Å Quality: GOOD

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

51 KDA FK506-BINDING PROTEIN

Homo sapiens

UniProt Q13451

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 1–457 Mutation:K99R SO4 SULFATE ION × 3 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 5.8;277 K;PEGMME 5000, ammonium sulfate, pH 5.8, VAPOR DIFFUSION, SITTING DROP, temperature 277K Resolution 2.70 Å R-free 0.375
2 Protein homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 1–457 Mutation:K99R SO4 SULFATE ION × 6 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 5.8;277 K;PEGMME 5000, ammonium sulfate, pH 5.8, VAPOR DIFFUSION, SITTING DROP, temperature 277K Resolution 2.70 Å R-free 0.375

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.

137 other PDB entries and 202 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name FKBP5_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–457; UniProt 1–457

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 1kt0

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1kt0
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1kt0
Deposition date deposition_date2002-01-14
Structure title titleStructure of the Large FKBP-like Protein, FKBP51, Involved in Steroid Receptor Complexes
Keywords keywordsFKBP-like PPIASE, TPR repeats, ISOMERASE; ISOMERASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier27.75
Radius of gyration Rg (electron density) rg_electron27.45
Forward intensity I(0) i027417000.00
Molecular weight molecular_weight40573.0 kDa
Excluded volume excluded_volume50859 ų
Envelope volume envelope_volume70174 ų
Hydration-shell volume shell_volume22762 ų
Envelope diameter envelope_diameter93.6
Shell Rg shell_rg33.05
Envelope Rg envelope_rg27.40
Shape Rg shape_rg27.43
Total Rg total_rg28.14
Total atoms total_atoms2843
Residues n_residues357
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 dmax90.2
Rg (real space) rg_real27.85
Rg uncertainty (real space) rg_real_error0.67
I(0) (real space) i0_real2.7420e+07
I(0) uncertainty (real space) i0_real_error4.0450e+05
Rg (reciprocal space) rg_reciprocal27.82
I(0) (reciprocal space) i0_reciprocal27420000.0000
Solution quality estimate total_estimate0.8932
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary28.5
Skewness Skewness skewness0.299
Kurtosis Kurtosis kurtosis-0.608
Angular range angular_range— – 0.2850 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha2352000.0000
Real-space data points n_real_points58
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.939; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.881; Smooth: 0.909

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (3 domains)

Domain ID domain_idd1kt0a1
Class classa — All alpha proteins
Fold Fold folda.118 — alpha-alpha superhelix
Superfamily Superfamily superfamilya.118.8 — TPR-like
Family Family familya.118.8.1 — Tetratricopeptide repeat (TPR)
Domain ID domain_idd1kt0a2
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.26 — FKBP-like
Superfamily Superfamily superfamilyd.26.1 — FKBP-like
Family Family familyd.26.1.1 — FKBP immunophilin/proline isomerase
Domain ID domain_idd1kt0a3
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.26 — FKBP-like
Superfamily Superfamily superfamilyd.26.1 — FKBP-like
Family Family familyd.26.1.1 — FKBP immunophilin/proline isomerase

CATH v4.4 (3 domains)

Domain ID domain_id1kt0A01
Class class3 — Alpha Beta
Architecture architecture10 — Roll
Topology topology50 — Chitinase A; domain 3
Homologous superfamily homologous superfamily40
Domain ID domain_id1kt0A02
Class class3 — Alpha Beta
Architecture architecture10 — Roll
Topology topology50 — Chitinase A; domain 3
Homologous superfamily homologous superfamily40
Domain ID domain_id1kt0A03
Class class1 — Mainly Alpha
Architecture architecture25 — Alpha Horseshoe
Topology topology40 — Serine Threonine Protein Phosphatase 5, Tetratricopeptide repeat
Homologous superfamily homologous superfamily10 — Tetratricopeptide repeat domain

8. Citations (1)

9. Files and Curves (10)