7lmc

Structure of SARS CoV-2 main protease shows simultaneous processing of its N- and C-terminii

Method: X-RAY DIFFRACTION Dmax: 118.4 Å Quality: GOOD

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

Non-structural protein 4 peptide

Severe acute respiratory syndrome coronavirus 2

UniProt P0DTD1

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 × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain A; UniProt 3264–3569 Chain B; UniProt 3264–3569 Chain E; UniProt 3258–3263 Not recorded No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;pH 6;286 K;0.1 M MES, pH 6, 20 % PEG 6000, 0.2 M ammonium chloride Resolution 2.98 Å R-free 0.288
2 Protein homooligomer Homooligomer Protein × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain C; UniProt 3264–3569 Chain D; UniProt 3264–3569 Chain F; UniProt 3258–3263 Not recorded No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;pH 6;286 K;0.1 M MES, pH 6, 20 % PEG 6000, 0.2 M ammonium chloride Resolution 2.98 Å R-free 0.288

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.

3350 other PDB entries and 4323 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name R1AB_SARS2
Isoform
PDB entities 1, 2
Chains and sequence ranges Author chain E; PDBConstruct 1–6; UniProt 3258–3263 Author chain F; PDBConstruct 1–6; UniProt 3258–3263 Author chain A; PDBConstruct 1–306; UniProt 3264–3569 Author chain B; PDBConstruct 1–306; UniProt 3264–3569 Author chain C; PDBConstruct 1–306; UniProt 3264–3569 Author chain D; PDBConstruct 1–306; UniProt 3264–3569

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 7lmc

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 7lmc
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2. Structure Basics 2. Structure Basics

Entry ID entry_id7lmc
Deposition date deposition_date2021-02-05
Structure title titleStructure of SARS CoV-2 main protease shows simultaneous processing of its N- and C-terminii
Keywords keywordsSARS, protease, coronavirus-2, COVID-19, auto-processing, maturation, HYDROLASE; HYDROLASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier34.86
Radius of gyration Rg (electron density) rg_electron34.29
Forward intensity I(0) i0290840000.00
Molecular weight molecular_weight136050.0 kDa
Excluded volume excluded_volume169660 ų
Envelope volume envelope_volume214080 ų
Hydration-shell volume shell_volume51891 ų
Envelope diameter envelope_diameter124.0
Shell Rg shell_rg40.90
Envelope Rg envelope_rg33.99
Shape Rg shape_rg34.27
Total Rg total_rg34.82
Total atoms total_atoms9539
Residues n_residues1235
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 dmax118.4
Rg (real space) rg_real34.84
Rg uncertainty (real space) rg_real_error0.84
I(0) (real space) i0_real2.9080e+08
I(0) uncertainty (real space) i0_real_error4.7700e+06
Rg (reciprocal space) rg_reciprocal34.86
I(0) (reciprocal space) i0_reciprocal290800000.0000
Solution quality estimate total_estimate0.8730
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary42.1
Skewness Skewness skewness0.376
Kurtosis Kurtosis kurtosis-0.174
Angular range angular_range— – 0.2250 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha57720000.0000
Real-space data points n_real_points46
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.799; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 1.000; Smooth: 0.949

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (2)

7. Fold Classification (SCOP + CATH) 12 domains

SCOP 2.08 (4 domains)

Domain ID domain_idd7lmca_
Class classb — All beta proteins
Fold Fold foldb.47 — Trypsin-like serine proteases
Superfamily Superfamily superfamilyb.47.1 — Trypsin-like serine proteases
Family Family familyb.47.1.4 — Viral cysteine protease of trypsin fold
Domain ID domain_idd7lmcb_
Class classb — All beta proteins
Fold Fold foldb.47 — Trypsin-like serine proteases
Superfamily Superfamily superfamilyb.47.1 — Trypsin-like serine proteases
Family Family familyb.47.1.4 — Viral cysteine protease of trypsin fold
Domain ID domain_idd7lmcc_
Class classb — All beta proteins
Fold Fold foldb.47 — Trypsin-like serine proteases
Superfamily Superfamily superfamilyb.47.1 — Trypsin-like serine proteases
Family Family familyb.47.1.4 — Viral cysteine protease of trypsin fold
Domain ID domain_idd7lmcd_
Class classb — All beta proteins
Fold Fold foldb.47 — Trypsin-like serine proteases
Superfamily Superfamily superfamilyb.47.1 — Trypsin-like serine proteases
Family Family familyb.47.1.4 — Viral cysteine protease of trypsin fold

CATH v4.4 (8 domains)

Domain ID domain_id7lmcA01
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily10 — Trypsin-like serine proteases
Domain ID domain_id7lmcA02
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology1840 — main proteinase (3clpro) structure, domain 3
Homologous superfamily homologous superfamily10 — main proteinase (3clpro) structure, domain 3
Domain ID domain_id7lmcB01
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily10 — Trypsin-like serine proteases
Domain ID domain_id7lmcB02
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology1840 — main proteinase (3clpro) structure, domain 3
Homologous superfamily homologous superfamily10 — main proteinase (3clpro) structure, domain 3
Domain ID domain_id7lmcC01
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily10 — Trypsin-like serine proteases
Domain ID domain_id7lmcC02
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology1840 — main proteinase (3clpro) structure, domain 3
Homologous superfamily homologous superfamily10 — main proteinase (3clpro) structure, domain 3
Domain ID domain_id7lmcD01
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily10 — Trypsin-like serine proteases
Domain ID domain_id7lmcD02
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology1840 — main proteinase (3clpro) structure, domain 3
Homologous superfamily homologous superfamily10 — main proteinase (3clpro) structure, domain 3

8. Citations (1)

9. Files and Curves (10)