3mct

VACCINIA METHYLTRANSFERASE VP39 COMPLEXED WITH M3CYT AND S-ADENOSYLHOMOCYSTEINE

Method: X-RAY DIFFRACTION Dmax: 61.7 Å Quality: EXCELLENT

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

VP39

Vaccinia virus

UniProt P07617

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 × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 1–297 Mutation:C-TERMINAL DELETION OF 26 RESIDUES SAH S-ADENOSYL-L-HOMOCYSTEINE × 2 3MC 3-METHYLCYTOSINE × 2 X-RAY DIFFRACTION X-ray crystallization conditions:pH 6.5;pH 6.5 Resolution 2.00 Å R-free 0.285

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.

21 other PDB entries and 23 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name PAP2_VACCV
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–297; UniProt 1–297

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 3mct

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 3mct
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2. Structure Basics 2. Structure Basics

Entry ID entry_id3mct
Deposition date deposition_date1999-01-05
Structure title titleVACCINIA METHYLTRANSFERASE VP39 COMPLEXED WITH M3CYT AND S-ADENOSYLHOMOCYSTEINE
Keywords keywords;METHYLATED CYTOSINE, METHYLTRANSFERASE, RNA CAP ANALOG, POLY(A) POLYMERASE, VACCINIA, MRNA PROCESSING, TRANSCRIPTION, COMPLEX (TRANSFERASE-RNA CAP ANALOG) ;; METHYLTRANSFERASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier20.22
Radius of gyration Rg (electron density) rg_electron19.05
Forward intensity I(0) i018744700.00
Molecular weight molecular_weight34527.0 kDa
Excluded volume excluded_volume43906 ų
Envelope volume envelope_volume49701 ų
Hydration-shell volume shell_volume21323 ų
Envelope diameter envelope_diameter63.4
Shell Rg shell_rg25.80
Envelope Rg envelope_rg19.28
Shape Rg shape_rg19.04
Total Rg total_rg20.00
Total atoms total_atoms2967
Residues n_residues291
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 dmax61.7
Rg (real space) rg_real20.10
Rg uncertainty (real space) rg_real_error0.26
I(0) (real space) i0_real1.8740e+07
I(0) uncertainty (real space) i0_real_error2.1520e+05
Rg (reciprocal space) rg_reciprocal20.12
I(0) (reciprocal space) i0_reciprocal18740000.0000
Solution quality estimate total_estimate0.9030
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary25.6
Skewness Skewness skewness0.128
Kurtosis Kurtosis kurtosis-0.493
Angular range angular_range— – 0.3950 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha4873000.0000
Real-space data points n_real_points71
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.921; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.983; Smooth: 0.989

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd3mcta_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.66 — S-adenosyl-L-methionine-dependent methyltransferases
Superfamily Superfamily superfamilyc.66.1 — S-adenosyl-L-methionine-dependent methyltransferases
Family Family familyc.66.1.25 — mRNA cap methylase

CATH v4.4 (1 domains)

Domain ID domain_id3mctA00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily150 — Vaccinia Virus protein VP39

8. Citations (1)

9. Files and Curves (10)