- PDB-1u0m: Crystal Structure of 1,3,6,8-Tetrahydroxynaphthalene Synthase (TH... -
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Database: PDB / ID: 1u0m
Title
Crystal Structure of 1,3,6,8-Tetrahydroxynaphthalene Synthase (THNS) from Streptomyces coelicolor A3(2): a Bacterial Type III Polyketide Synthase (PKS) Provides Insights into Enzymatic Control of Reactive Polyketide Intermediates
1,3,6,8-tetrahydroxynaphthalene synthase / melanin biosynthetic process / acyltransferase activity, transferring groups other than amino-acyl groups Similarity search - Function
Chalcone/stilbene synthase, N-terminal / Polyketide synthase, type III / Chalcone/stilbene synthase, C-terminal / Chalcone and stilbene synthases, C-terminal domain / Chalcone and stilbene synthases, N-terminal domain / Thiolase/Chalcone synthase / Peroxisomal Thiolase; Chain A, domain 1 / Thiolase-like / 3-Layer(aba) Sandwich / Alpha Beta Similarity search - Domain/homology
Method to determine structure: MAD, AB INITIO PHASING / Resolution: 2.22→40.39 Å / Rfactor Rfree error: 0.007 / Data cutoff high absF: 3024240.02 / Data cutoff low absF: 0 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0 / Stereochemistry target values: Engh & Huber Details: Initial low-resolution experimental phases obtained using SOLVE and a separate 2.9 Angstrom Pt-derivative MAD data set. A THNS homology model (based on CHS structure) was then manually fit ...Details: Initial low-resolution experimental phases obtained using SOLVE and a separate 2.9 Angstrom Pt-derivative MAD data set. A THNS homology model (based on CHS structure) was then manually fit and rebuilt into the resulting 3.9 Angstrom electron density. This rebuilt model was subsequently refined only against the higher 2.2 Angstrom native data set deposited here.
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