9X2B | pdb_00009x2b

Cryo-EM structure of PsoA in apo state (PsoA-PKS-II)

PDB DOI: https://doi.org/10.2210/pdb9X2B/pdb
EM Map EMD-66476: EMDB EMDataResource

Classification: BIOSYNTHETIC PROTEIN
Organism(s): Aspergillus fumigatus Af293
Expression System: Saccharomyces cerevisiae
Mutation(s): No

Deposited: 2025-10-04 Released: 2026-04-08
Deposition Author(s): Sun, L., Bai, L.
Funding Organization(s): National Natural Science Foundation of China (NSFC)

Experimental Data Snapshot

Method: ELECTRON MICROSCOPY
Resolution: 3.39 Å
Aggregation State: CELL
Reconstruction Method: SINGLE PARTICLE

wwPDB Validation 3D Report Full Report

Validation slider image for 9X2B

This is version 1.1 of the entry. See complete history.

Literature

Mechanistic Insights Into the Biosynthesis of Pseurotin A in Aspergillus fumigatus

Sun, L., You, Z.L., Lyu, R.Q., Wang, Z.B., Ma, M., Bai, L.

(2026) Small Struct 7

DOI: https://doi.org/10.1002/sstr.202500830

Macromolecule Content

Total Structure Weight: 872.4 kDa
Atom Count: 36,254
Modeled Residue Count: 4,733
Deposited Residue Count: 8,014
Unique protein chains: 1

Macromolecules

Find similar proteins by:

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
PKS-NRPS hybrid synthetase psoA	A, B	4,007	Aspergillus fumigatus Af293	Mutation(s): 0 Gene Names: NRPS14, pesO, AFUA_8G00540 EC: 2.3.1 (PDB Primary Data), 6.3.2 (PDB Primary Data)
UniProt
Find proteins for Q4WAZ9 (Aspergillus fumigatus (strain ATCC MYA-4609 / CBS 101355 / FGSC A1100 / Af293)) Explore Q4WAZ9 Go to UniProtKB: Q4WAZ9
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	Q4WAZ9
Sequence Annotations Expand
Reference Sequence

Experimental Data & Validation

Experimental Data

Method: ELECTRON MICROSCOPY
Resolution: 3.39 Å
Aggregation State: CELL
Reconstruction Method: SINGLE PARTICLE

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	PHENIX	1.21.1_5286
RECONSTRUCTION	cryoSPARC

Structure Validation

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View more in-depth experimental data

Entry History

& Funding Information

Deposition Data

Released Date: 2026-04-08

Deposition Author(s):

Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	32171212

Revision History (Full details and data files)

Version 1.0: 2026-04-08
Type: Initial release
Version 1.1: 2026-04-22
Changes: Data collection, Database references

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RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.