1kak

Human Tyrosine Phosphatase 1B Complexed with an Inhibitor

Method: X-RAY DIFFRACTION Dmax: 67.2 Å Quality: GOOD

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

PROTEIN-TYROSINE PHOSPHATASE, NON-RECEPTOR TYPE 1

Homo sapiens

UniProt P18031

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 1–298 Not recorded FNP {[7-(DIFLUORO-PHOSPHONO-METHYL)-NAPHTHALEN-2-YL]-DIFLUORO-METHYL}-PHOSPHONIC ACID × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6.9;277 K;PEG 8000, magnesium acetate, HEPES, pH 6.9, VAPOR DIFFUSION, HANGING DROP, temperature 277.0K Resolution 2.50 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.

440 other PDB entries and 469 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name PTN1_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–298; UniProt 1–298

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 1kak

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id1kak
Deposition date deposition_date2001-11-02
Structure title titleHuman Tyrosine Phosphatase 1B Complexed with an Inhibitor
Keywords keywordsPROTEIN-INHIBITOR COMPLEX, HYDROLASE; HYDROLASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier19.91
Radius of gyration Rg (electron density) rg_electron18.73
Forward intensity I(0) i021682600.00
Molecular weight molecular_weight34924.0 kDa
Excluded volume excluded_volume43443 ų
Envelope volume envelope_volume48246 ų
Hydration-shell volume shell_volume21002 ų
Envelope diameter envelope_diameter70.0
Shell Rg shell_rg25.66
Envelope Rg envelope_rg19.25
Shape Rg shape_rg18.72
Total Rg total_rg19.70
Total atoms total_atoms2451
Residues n_residues297
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 dmax67.2
Rg (real space) rg_real19.79
Rg uncertainty (real space) rg_real_error0.35
I(0) (real space) i0_real2.1680e+07
I(0) uncertainty (real space) i0_real_error2.8870e+05
Rg (reciprocal space) rg_reciprocal19.81
I(0) (reciprocal space) i0_reciprocal21680000.0000
Solution quality estimate total_estimate0.7941
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary24.6
Skewness Skewness skewness0.231
Kurtosis Kurtosis kurtosis-0.299
Angular range angular_range— – 0.4000 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha4885000.0000
Real-space data points n_real_points72
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.774; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.998; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd1kaka_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.45 — (Phosphotyrosine protein) phosphatases II
Superfamily Superfamily superfamilyc.45.1 — (Phosphotyrosine protein) phosphatases II
Family Family familyc.45.1.2 — Higher-molecular-weight phosphotyrosine protein phosphatases

CATH v4.4 (1 domains)

Domain ID domain_id1kakA00
Class class3 — Alpha Beta
Architecture architecture90 — Alpha-Beta Complex
Topology topology190 — Protein-Tyrosine Phosphatase; Chain A
Homologous superfamily homologous superfamily10 — Protein tyrosine phosphatase superfamily

8. Citations (1)

9. Files and Curves (10)