6E78 | pdb_00006e78

Structure of Human Transthyretin Asp38Ala Mutant in Complex with Diflunisal

• PDB DOI: https://doi.org/10.2210/pdb6E78/pdb

• Classification: TRANSPORT PROTEIN
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2018-07-25 Released: 2019-07-31 
• Deposition Author(s): Chung, K., Saelices, L., Sawaya, M.R., Cascio, D., Eisenberg, D.
• Funding Organization(s): National Institutes of Health/National Institute on Aging (NIH/NIA)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.50 Å
• R-Value Free: 
  0.213 (Depositor), 0.210 (DCC) 
• R-Value Work: 
  0.188 (Depositor), 0.190 (DCC) 
• R-Value Observed: 
  0.191 (Depositor) 

Literature

Structural Variants of Transthyretin

Saelices, L., Chung, K., Esswein, S., Chou, J., Liang, W., Li, J.H., Sawaya, M.R., Cascio, D., Eisenberg, D.

To be published.

Biological Assembly 1  

Global Symmetry: Dihedral - D2  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly Evidence: gel filtration

Macromolecule Content 

• Total Structure Weight: 25.72 kDa 
• Atom Count: 1,939 
• Modeled Residue Count: 230 
• Deposited Residue Count: 230 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Transthyretin	A, B	115	Homo sapiens	Mutation(s): 1  Gene Names: TTR, PALB
UniProt & NIH Common Fund Data Resources
Find proteins for P02766 (Homo sapiens) Explore P02766  Go to UniProtKB:  P02766
PHAROS:  P02766 GTEx:  ENSG00000118271

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
1FL	C [auth A], D [auth B]	5-(2,4-DIFLUOROPHENYL)-2-HYDROXY-BENZOIC ACID C13 H8 F2 O3 HUPFGZXOMWLGNK-UHFFFAOYSA-N

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
OCS	A, B	L-PEPTIDE LINKING	C3 H7 N O5 S		CYS

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.50 Å
• R-Value Free:  0.213 (Depositor), 0.210 (DCC) 
• R-Value Work:  0.188 (Depositor), 0.190 (DCC) 
• R-Value Observed: 0.191 (Depositor) 

Space Group: P 2₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 43.21	α = 90
b = 85.44	β = 90
c = 64.15	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
PDB_EXTRACT	data extraction
XDS	data reduction
XSCALE	data scaling

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2019-07-31 
Deposition Author(s): Chung, K., Saelices, L., Sawaya, M.R., Cascio, D., Eisenberg, D.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute on Aging (NIH/NIA)	United States	AG048120

Revision History  

• Version 1.0: 2019-07-31
  Type: Initial release
  
• Version 1.1: 2019-12-18
  Changes: Author supporting evidence
• Version 1.2: 2025-04-02
  Changes: Data collection, Database references, Structure summary