1tau

TAQ POLYMERASE (E.C.2.7.7.7)/DNA/B-OCTYLGLUCOSIDE COMPLEX

Method: X-RAY DIFFRACTION Dmax: 134.7 Å Quality: GOOD

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

PROTEIN (TAQ POLYMERASE)

Thermus aquaticus

UniProt P19821

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–DNA Monomer Protein × 1 DNA 2 PDB declaration: trimeric(3) Consistent with all polymer counts Chain A; UniProt 1–832 Not recorded ;DNA (5'-D(*GP*CP*GP*AP*TP*CP*CP*G)-3') ; × 1 ;DNA (5'-D(*CP*GP*GP*AP*TP*CP*GP*C)-3') ; × 1 BGL 2-O-octyl-beta-D-glucopyranose × 1 ZN ZINC ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6;295 K;pH 6.00, VAPOR DIFFUSION, HANGING DROP, temperature 295.00K Resolution 3.00 Å R-free 0.305

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.

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

View Construct and Data Evidence
UniProt name DPO1_THEAQ
Isoform
PDB entities 3
Chains and sequence ranges Author chain A; PDBConstruct 1–832; UniProt 1–832

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 1tau

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id1tau
Deposition date deposition_date1996-06-17
Structure title titleTAQ POLYMERASE (E.C.2.7.7.7)/DNA/B-OCTYLGLUCOSIDE COMPLEX
Keywords keywordsPROTEIN-DNA COMPLEX, Taq DNA Polymerase, transferase-DNA COMPLEX; transferase/DNA
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier35.79
Radius of gyration Rg (electron density) rg_electron36.50
Forward intensity I(0) i0142989000.00
Molecular weight molecular_weight94819.0 kDa
Excluded volume excluded_volume118250 ų
Envelope volume envelope_volume155310 ų
Hydration-shell volume shell_volume37931 ų
Envelope diameter envelope_diameter140.5
Shell Rg shell_rg39.67
Envelope Rg envelope_rg36.60
Shape Rg shape_rg36.50
Total Rg total_rg36.71
Total atoms total_atoms8122
Residues n_residues809
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 dmax134.7
Rg (real space) rg_real36.21
Rg uncertainty (real space) rg_real_error1.61
I(0) (real space) i0_real1.4300e+08
I(0) uncertainty (real space) i0_real_error2.7690e+06
Rg (reciprocal space) rg_reciprocal35.95
I(0) (reciprocal space) i0_reciprocal143000000.0000
Solution quality estimate total_estimate0.7739
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary33.7
Skewness Skewness skewness0.650
Kurtosis Kurtosis kurtosis-0.036
Angular range angular_range— – 0.2200 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha18950000.0000
Real-space data points n_real_points45
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.526; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.565; Smooth: 0.913

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (5)

7. Fold Classification (SCOP + CATH) 10 domains

SCOP 2.08 (4 domains)

Domain ID domain_idd1taua1
Class classa — All alpha proteins
Fold Fold folda.60 — SAM domain-like
Superfamily Superfamily superfamilya.60.7 — 5' to 3' exonuclease, C-terminal subdomain
Family Family familya.60.7.1 — 5' to 3' exonuclease, C-terminal subdomain
Domain ID domain_idd1taua2
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.120 — PIN domain-like
Superfamily Superfamily superfamilyc.120.1 — PIN domain-like
Family Family familyc.120.1.2 — 5' to 3' exonuclease catalytic domain
Domain ID domain_idd1taua3
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.55 — Ribonuclease H-like motif
Superfamily Superfamily superfamilyc.55.3 — Ribonuclease H-like
Family Family familyc.55.3.5 — DnaQ-like 3'-5' exonuclease
Domain ID domain_idd1taua4
Class classe — Multi-domain proteins (alpha and beta)
Fold Fold folde.8 — DNA/RNA polymerases
Superfamily Superfamily superfamilye.8.1 — DNA/RNA polymerases
Family Family familye.8.1.1 — DNA polymerase I

CATH v4.4 (6 domains)

Domain ID domain_id1tauA01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily1010 — 5'-nuclease
Domain ID domain_id1tauA02
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology150 — DNA polymerase; domain 1
Homologous superfamily homologous superfamily20 — 5' to 3' exonuclease, C-terminal subdomain
Domain ID domain_id1tauA03
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology420 — Nucleotidyltransferase; domain 5
Homologous superfamily homologous superfamily10 — Ribonuclease H-like superfamily/Ribonuclease H
Domain ID domain_id1tauA04
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology1060 — Taq DNA Polymerase; Chain T, domain 4
Homologous superfamily homologous superfamily10 — Taq DNA Polymerase; Chain T, domain 4
Domain ID domain_id1tauA05
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily370
Domain ID domain_id1tauA06
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology150 — DNA polymerase; domain 1
Homologous superfamily homologous superfamily20 — 5' to 3' exonuclease, C-terminal subdomain

8. Citations (3)

9. Files and Curves (10)