2cma

Structural Basis for Inhibition of Protein Tyrosine Phosphatase 1B by Isothiazolidinone Heterocyclic Phosphonate Mimetics

Method: X-RAY DIFFRACTION Dmax: 65.6 Å Quality: REASONABLE

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

TYROSINE-PROTEIN 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 1–1 Chain A; UniProt 2–321 Fragment:CATALYTIC DOMAIN, RESIDUES 1-321 F20 N-BENZOYL-L-PHENYLALANYL-4-[(5S)-1,1-DIOXIDO-3-OXOISOTHIAZOLIDIN-5-YL]-L-PHENYLALANINAMIDE × 1 X-RAY DIFFRACTION X-ray crystallization conditions:pH 6.6;100 MM HEPES PH 6.6, 14-16% PEG 8000, 200 MM MAGNESIUM ACETATE Resolution 2.30 Å R-free 0.278

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 1–1; UniProt 1–1 Author chain A; PDBConstruct 8–327; UniProt 2–321

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 2cma

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 2cma
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2. Structure Basics 2. Structure Basics

Entry ID entry_id2cma
Deposition date deposition_date2006-05-04
Structure title titleStructural Basis for Inhibition of Protein Tyrosine Phosphatase 1B by Isothiazolidinone Heterocyclic Phosphonate Mimetics
Keywords keywordsPOLYMORPHISM, PHOSPHORYLATION, PROTEIN PHOSPHATASE, ENDOPLASMIC RETICULUM, OXIDATION, HYDROLASE, ACETYLATION, PHOSPHATASE; HYDROLASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier20.03
Radius of gyration Rg (electron density) rg_electron18.90
Forward intensity I(0) i021417500.00
Molecular weight molecular_weight34954.0 kDa
Excluded volume excluded_volume43615 ų
Envelope volume envelope_volume49038 ų
Hydration-shell volume shell_volume21209 ų
Envelope diameter envelope_diameter71.0
Shell Rg shell_rg25.71
Envelope Rg envelope_rg19.37
Shape Rg shape_rg18.89
Total Rg total_rg19.84
Total atoms total_atoms2457
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 dmax65.6
Rg (real space) rg_real19.94
Rg uncertainty (real space) rg_real_error0.38
I(0) (real space) i0_real2.1420e+07
I(0) uncertainty (real space) i0_real_error2.8900e+05
Rg (reciprocal space) rg_reciprocal19.96
I(0) (reciprocal space) i0_reciprocal21420000.0000
Solution quality estimate total_estimate0.6659
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks3
Primary peak position r_peak_primary25.3
Skewness Skewness skewness0.226
Kurtosis Kurtosis kurtosis-0.308
Angular range angular_range— – 0.3950 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha5073000.0000
Real-space data points n_real_points71
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.813; Stabil: 0.999; Sysdev: 0.406; Positv: 1.000; Valcen: 0.996; 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_idd2cmaa_
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_id2cmaA00
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)