8TRW | pdb_00008trw

Structure of human LIAS

• PDB DOI: https://doi.org/10.2210/pdb8TRW/pdb

• Classification: BIOSYNTHETIC PROTEIN
• Organism(s): Homo sapiens
• Expression System: Escherichia
• Mutation(s): No 


• Deposited: 2023-08-10 Released: 2025-06-11 
• Deposition Author(s): Esakova, O.A., Warui, D.M., Neti, S.S., Alumasa, J.N., Booker, S.J.
• Funding Organization(s): National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS), National Science Foundation (NSF, United States), Howard Hughes Medical Institute (HHMI)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.54 Å
• R-Value Free: 
  0.180 (Depositor), 0.180 (DCC) 
• R-Value Work: 
  0.152 (Depositor), 0.152 (DCC) 
• R-Value Observed: 
  0.153 (Depositor) 

Literature

Structural basis for the mechanism of the human lipoyl synthase (LIAS) and its complex with the H-protein

Esakova, O.A., Warui, D.M., Neti, S.S., Alumasa, J.N., Booker, S.J.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 42.84 kDa 
• Atom Count: 2,849 
• Modeled Residue Count: 294 
• Deposited Residue Count: 368 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Lipoyl synthase, mitochondrial	A	368	Homo sapiens	Mutation(s): 0  Gene Names: LIAS EC: 2.8.1.8
UniProt & NIH Common Fund Data Resources
Find proteins for O43766 (Homo sapiens) Explore O43766  Go to UniProtKB:  O43766
PHAROS:  O43766 GTEx:  ENSG00000121897

Oligosaccharides

Help

Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
alpha-D-glucopyranose-(1-1)-alpha-D-glucopyranose	B [auth E]	2		N/A
Glycosylation Resources
GlyTouCan:  G92130SN GlyCosmos:  G92130SN

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SF4 (Subject of Investigation/LOI)	E [auth A], F [auth A]	IRON/SULFUR CLUSTER Fe4 S4 LJBDFODJNLIPKO-UHFFFAOYSA-N
DTT	C [auth A]	2,3-DIHYDROXY-1,4-DITHIOBUTANE C4 H10 O2 S2 VHJLVAABSRFDPM-IMJSIDKUSA-N
SO4	D [auth A]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.54 Å
• R-Value Free:  0.180 (Depositor), 0.180 (DCC) 
• R-Value Work:  0.152 (Depositor), 0.152 (DCC) 
• R-Value Observed: 0.153 (Depositor) 

Space Group: I 2 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 68.353	α = 90
b = 88.789	β = 90
c = 108.166	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
HKL-2000	data scaling
HKL-2000	data reduction
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-06-11 
Deposition Author(s): Esakova, O.A., Warui, D.M., Neti, S.S., Alumasa, J.N., Booker, S.J.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	GM-122595
National Science Foundation (NSF, United States)	United States	MCB1716686
Howard Hughes Medical Institute (HHMI)	United States	SJB

Revision History  

• Version 1.0: 2025-06-11
  Type: Initial release