4HFX

Crystal structure of a transcription elongation factor B polypeptide 3 from Homo sapiens, Northeast Structural Genomics consortium target id HR4748B.

• PDB DOI: https://doi.org/10.2210/pdb4HFX/pdb

• Classification: TRANSCRIPTION
• Organism(s): Homo sapiens
• Mutation(s): No 


• Deposited: 2012-10-05 Released: 2012-12-12 
• Deposition Author(s): Seetharaman, J., Su, M., Ciccosanti, C., Sahdev, S., Acton, T.B., Xiao, R., Everett, J.K., Montelione, G.T., Hunt, J.F., Tong, L., Northeast Structural Genomics Consortium (NESG)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.54 Å
• R-Value Free: 0.263 
• R-Value Work: 0.235 
• R-Value Observed: 0.236 

Literature

Crystal structure of a transcription elongation factor B polypeptide 3 from Homo sapiens, Northeast Structural Genomics consortium target id HR4748B. (CASP Target)

Seetharaman, J., Su, M., Ciccosanti, C., Sahdev, S., Acton, T.B., Xiao, R., K Everett, J., T Montelione, G., Hunt, J.F., Tong, L.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 Pseudo Symmetry: Cyclic - C2  (Explore in 3D)
Pseudo Stoichiometry: Homo 2-mer - A2 

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

Biological Assembly 2  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 48.87 kDa 
• Atom Count: 1,872 
• Modelled Residue Count: 223 
• Deposited Residue Count: 388 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Transcription elongation factor B polypeptide 3	A, B, C, D	97	Homo sapiens	Mutation(s): 0
UniProt & NIH Common Fund Data Resources
Find proteins for Q14241 (Homo sapiens) Explore Q14241  Go to UniProtKB:  Q14241
PHAROS:  Q14241 GTEx:  ENSG00000011007

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SO4	E [auth B], F [auth C], G [auth D]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
MSE	A, B, C, D	L-PEPTIDE LINKING	C5 H11 N O2 Se		MET

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.54 Å
• R-Value Free: 0.263 
• R-Value Work: 0.235 
• R-Value Observed: 0.236 
• Space Group: P 3₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 80.643	α = 90
b = 80.643	β = 90
c = 63.222	γ = 120

Software Package:

Software Name	Purpose
ADSC	data collection
SHELXS	phasing
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2012-12-12 
Deposition Author(s): Seetharaman, J., Su, M., Ciccosanti, C., Sahdev, S., Acton, T.B., Xiao, R., Everett, J.K., Montelione, G.T., Hunt, J.F., Tong, L., Northeast Structural Genomics Consortium (NESG)

Revision History  

• Version 1.0: 2012-12-12
  Type: Initial release
  
• Version 1.1: 2018-01-24
  Changes: Database references, Structure summary
• Version 1.2: 2024-10-30
  Changes: Data collection, Database references, Derived calculations, Structure summary