9NHQ | pdb_00009nhq

The cryo-EM structure of NmTbpA and NmTbpB in a complex

PDB DOI: https://doi.org/10.2210/pdb9NHQ/pdb
EM Map EMD-49421: EMDB EMDataResource

Classification: MEMBRANE PROTEIN
Organism(s): Neisseria meningitidis serogroup B
Expression System: Escherichia coli
Mutation(s): No

Deposited: 2025-02-25 Released: 2026-03-04
Deposition Author(s): Dubey, S.D., Noinaj, N.
Funding Organization(s): National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)

Experimental Data Snapshot

Method: ELECTRON MICROSCOPY
Resolution: 4.20 Å
Aggregation State: PARTICLE
Reconstruction Method: SINGLE PARTICLE

wwPDB Validation 3D Report Full Report

This is version 1.0 of the entry. See complete history.

Literature

The cryo-EM structure of NmTbpA and NmTbpB in a complex

Dubey, S.D., Noinaj, N.

To be published.

Macromolecule Content

Total Structure Weight: 180.45 kDa
Atom Count: 10,738
Modeled Residue Count: 1,400
Deposited Residue Count: 1,628
Unique protein chains: 2

Macromolecules

Find similar proteins by:

(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Transferrin-binding protein A	A	915	Neisseria meningitidis serogroup B	Mutation(s): 0 Gene Names: tbpA
UniProt
Find proteins for Q9JPJ0 (Neisseria meningitidis) Explore Q9JPJ0 Go to UniProtKB: Q9JPJ0
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	Q9JPJ0
Sequence Annotations Expand
Reference Sequence

Find similar proteins by:

(by identity cutoff) | 3D Structure

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Transferrin-binding protein B	B	713	Neisseria meningitidis serogroup B	Mutation(s): 0 Gene Names: tbpB
UniProt
Find proteins for Q9JPI9 (Neisseria meningitidis) Explore Q9JPI9 Go to UniProtKB: Q9JPI9
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	Q9JPI9
Sequence Annotations Expand
Reference Sequence

Experimental Data & Validation

Experimental Data

Method: ELECTRON MICROSCOPY
Resolution: 4.20 Å
Aggregation State: PARTICLE
Reconstruction Method: SINGLE PARTICLE

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	PHENIX	1.18rc1_3777:

Structure Validation

View Full Validation Report

Entry History & Funding Information

Deposition Data

Released Date: 2026-03-04

Deposition Author(s):

Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	1R01GM127884

Revision History (Full details and data files)

Version 1.0: 2026-03-04
Type: Initial release

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.