2j7q

Crystal structure of the ubiquitin-specific protease encoded by murine cytomegalovirus tegument protein M48 in complex with a ubquitin-based suicide substrate

Method: X-RAY DIFFRACTION Dmax: 85.0 Å Quality: EXCELLENT

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

UBIQUITIN

HOMO SAPIENS

UniProt P62988

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 heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain B; UniProt 1–75 Fragment:UBIQUITIN FUSED TO VINYLMETHYLESTER, UBVME, RESIDUES 1-75 MCMV TEGUMENT PROTEIN M48 ENCODED UBIQUITIN- SPECIFIC PROTEASE, M48USP × 1 MG MAGNESIUM ION × 2 GVE METHYL 4-AMINOBUTANOATE × 1 PG4 TETRAETHYLENE GLYCOL × 1 X-RAY DIFFRACTION X-ray crystallization conditions:pH 7.5;200 MM MAGNESIUM FORMATE, 14% PEG 3350, pH 7.50 Resolution 1.80 Å R-free 0.214
2 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain D; UniProt 1–75 Fragment:UBIQUITIN FUSED TO VINYLMETHYLESTER, UBVME, RESIDUES 1-75 MCMV TEGUMENT PROTEIN M48 ENCODED UBIQUITIN- SPECIFIC PROTEASE, M48USP × 1 MG MAGNESIUM ION × 1 GVE METHYL 4-AMINOBUTANOATE × 1 GOL GLYCEROL × 1 X-RAY DIFFRACTION X-ray crystallization conditions:pH 7.5;200 MM MAGNESIUM FORMATE, 14% PEG 3350, pH 7.50 Resolution 1.80 Å R-free 0.214

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.

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

View Construct and Data Evidence
UniProt name UBIQ_HUMAN
Isoform
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 1–75; UniProt 1–75 Author chain D; PDBConstruct 1–75; UniProt 1–75

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 2j7q

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 2j7q
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2. Structure Basics 2. Structure Basics

Entry ID entry_id2j7q
Deposition date deposition_date2006-10-16
Structure title titleCrystal structure of the ubiquitin-specific protease encoded by murine cytomegalovirus tegument protein M48 in complex with a ubquitin-based suicide substrate
Keywords keywords;HERPESVIRIDAE, NUCLEAR PROTEIN, COVALENT ENZYME-LIGAND COMPLEX, DEUBIQUITINATING ENZYME, HYDROLASE, PAPAIN-LIKE FOLD, CYSTEINE PROTEASE ;; HYDROLASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier26.76
Radius of gyration Rg (electron density) rg_electron25.87
Forward intensity I(0) i077722700.00
Molecular weight molecular_weight68850.0 kDa
Excluded volume excluded_volume86066 ų
Envelope volume envelope_volume106110 ų
Hydration-shell volume shell_volume33580 ų
Envelope diameter envelope_diameter89.2
Shell Rg shell_rg33.74
Envelope Rg envelope_rg25.97
Shape Rg shape_rg25.82
Total Rg total_rg26.88
Total atoms total_atoms4793
Residues n_residues602
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 dmax85.0
Rg (real space) rg_real26.66
Rg uncertainty (real space) rg_real_error0.50
I(0) (real space) i0_real7.7720e+07
I(0) uncertainty (real space) i0_real_error1.1020e+06
Rg (reciprocal space) rg_reciprocal26.69
I(0) (reciprocal space) i0_reciprocal77720000.0000
Solution quality estimate total_estimate0.9024
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary31.7
Skewness Skewness skewness0.235
Kurtosis Kurtosis kurtosis-0.451
Angular range angular_range— – 0.2950 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha16640000.0000
Real-space data points n_real_points60
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.912; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 1.000; Smooth: 0.992

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (8)

7. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_idd2j7qa1
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.3 — Cysteine proteinases
Superfamily Superfamily superfamilyd.3.1 — Cysteine proteinases
Family Family familyd.3.1.20 — M48USP-like
Domain ID domain_idd2j7qb_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.15 — beta-Grasp (ubiquitin-like)
Superfamily Superfamily superfamilyd.15.1 — Ubiquitin-like
Family Family familyd.15.1.1 — Ubiquitin-related
Domain ID domain_idd2j7qc1
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.3 — Cysteine proteinases
Superfamily Superfamily superfamilyd.3.1 — Cysteine proteinases
Family Family familyd.3.1.20 — M48USP-like
Domain ID domain_idd2j7qd_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.15 — beta-Grasp (ubiquitin-like)
Superfamily Superfamily superfamilyd.15.1 — Ubiquitin-like
Family Family familyd.15.1.1 — Ubiquitin-related

CATH v4.4 (4 domains)

Domain ID domain_id2j7qA00
Class class3 — Alpha Beta
Architecture architecture90 — Alpha-Beta Complex
Topology topology70 — Cathepsin B; Chain A
Homologous superfamily homologous superfamily120
Domain ID domain_id2j7qB00
Class class3 — Alpha Beta
Architecture architecture10 — Roll
Topology topology20 — Ubiquitin-like (UB roll)
Homologous superfamily homologous superfamily90 — Phosphatidylinositol 3-kinase Catalytic Subunit; Chain A, domain 1
Domain ID domain_id2j7qC00
Class class3 — Alpha Beta
Architecture architecture90 — Alpha-Beta Complex
Topology topology70 — Cathepsin B; Chain A
Homologous superfamily homologous superfamily120
Domain ID domain_id2j7qD00
Class class3 — Alpha Beta
Architecture architecture10 — Roll
Topology topology20 — Ubiquitin-like (UB roll)
Homologous superfamily homologous superfamily90 — Phosphatidylinositol 3-kinase Catalytic Subunit; Chain A, domain 1

8. Citations (1)

9. Files and Curves (10)