4KK7

Structure of EccB1 from the type VII (ESX-1) secretion system of Mycobacterium tuberculosis.

PDB DOI: https://doi.org/10.2210/pdb4KK7/pdb

Classification: PROTEIN TRANSPORT
Organism(s): Mycobacterium tuberculosis H37Rv
Expression System: Escherichia coli
Mutation(s): No

Deposited: 2013-05-05 Released: 2013-06-19
Deposition Author(s): Korotkov, K.V., Evans, T.J.

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 1.68 Å
R-Value Free: 0.214
R-Value Work: 0.177
R-Value Observed: 0.179

wwPDB Validation 3D Report Full Report

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

Literature

Structures of EccB1 and EccD1 from the core complex of the mycobacterial ESX-1 type VII secretion system.

Wagner, J.M., Chan, S., Evans, T.J., Kahng, S., Kim, J., Arbing, M.A., Eisenberg, D., Korotkov, K.V.

(2016) BMC Struct Biol 16: 5-5

PubMed: 26922638 Search on PubMedSearch on PubMed Central
DOI: https://doi.org/10.1186/s12900-016-0056-6
Primary Citation of Related Structures:
4KK7, 4KV2, 5CYU

PubMed Abstract:
The ESX-1 type VII secretion system is an important determinant of virulence in pathogenic mycobacteria, including Mycobacterium tuberculosis. This complicated molecular machine secretes folded proteins through the mycobacterial cell envelope to subvert the host immune response. Despite its important role in disease very little is known about the molecular architecture of the ESX-1 secretion system.

Organizational Affiliation

Department of Molecular & Cellular Biochemistry and Center for Structural Biology, University of Kentucky, 741 South Limestone, Lexington, KY, 40536, USA. jonw7782@gmail.com.

Macromolecule Content

Total Structure Weight: 42.28 kDa
Atom Count: 3,235
Modelled Residue Count: 385
Deposited Residue Count: 395
Unique protein chains: 1

Macromolecules

Find similar proteins by:

(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ESX-1 secretion system protein eccB1	A	395	Mycobacterium tuberculosis H37Rv	Mutation(s): 0 Gene Names: Rv3869, RVBD_3869
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
TRS Query on TRS Download Ideal Coordinates CCD File SDF format, chain F [auth A] MOL2 format, chain F [auth A]	F [auth A]	2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL C₄ H₁₂ N O₃ LENZDBCJOHFCAS-UHFFFAOYSA-O		Interactions Focus chain F [auth A] Interactions & Density Focus chain F [auth A]
GOL Query on GOL Download Ideal Coordinates CCD File SDF format, chain G [auth A] MOL2 format, chain G [auth A]	G [auth A]	GLYCEROL C₃ H₈ O₃ PEDCQBHIVMGVHV-UHFFFAOYSA-N		Interactions Focus chain G [auth A] Interactions & Density Focus chain G [auth A]
NI Query on NI Download Ideal Coordinates CCD File SDF format, chain B [auth A] SDF format, chain C [auth A] SDF format, chain D [auth A] SDF format, chain E [auth A] MOL2 format, chain B [auth A] MOL2 format, chain C [auth A] MOL2 format, chain D [auth A] MOL2 format, chain E [auth A]	B [auth A], C [auth A], D [auth A], E [auth A]	NICKEL (II) ION Ni VEQPNABPJHWNSG-UHFFFAOYSA-N		Interactions Focus chain B [auth A] Focus chain C [auth A] Focus chain D [auth A] Focus chain E [auth A] Interactions & Density Focus chain B [auth A] Focus chain C [auth A] Focus chain D [auth A] Focus chain E [auth A]