4XSV

Human CTP: Phosphoethanolamine Cytidylyltransferase in complex with CTP

• PDB DOI: https://doi.org/10.2210/pdb4XSV/pdb

• Classification: TRANSFERASE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2015-01-22 Released: 2016-03-16 
• Deposition Author(s): Schuler, H., Karlberg, T.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.70 Å
• R-Value Free: 0.264 
• R-Value Work: 0.191 
• R-Value Observed: 0.195 

Starting Model: experimental

Literature

Human CTP: Phosphoethanolamine Cytidylyltransferase

Schuler, H., Karlberg, T.

To be published.

Biological Assembly 1  

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

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

Macromolecule Content

• Total Structure Weight: 39.69 kDa 
• Atom Count: 2,522 
• Modelled Residue Count: 306 
• Deposited Residue Count: 341 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Ethanolamine-phosphate cytidylyltransferase	A	341	Homo sapiens	Mutation(s): 0  Gene Names: PCYT2 EC: 2.7.7.14
UniProt & NIH Common Fund Data Resources
Find proteins for Q99447 (Homo sapiens) Explore Q99447  Go to UniProtKB:  Q99447
PHAROS:  Q99447 GTEx:  ENSG00000185813

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CTP	C [auth A]	CYTIDINE-5'-TRIPHOSPHATE C9 H16 N3 O14 P3 PCDQPRRSZKQHHS-XVFCMESISA-N
C5P	B [auth A]	CYTIDINE-5'-MONOPHOSPHATE C9 H14 N3 O8 P IERHLVCPSMICTF-XVFCMESISA-N
GOL	D [auth A]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.70 Å
• R-Value Free: 0.264 
• R-Value Work: 0.191 
• R-Value Observed: 0.195 
• Space Group: P 4₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 73.39	α = 90
b = 73.39	β = 90
c = 140.03	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
XDS	data reduction
XSCALE	data scaling
MOLREP	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2016-03-16 
Deposition Author(s): Schuler, H., Karlberg, T.

Revision History  

• Version 1.0: 2016-03-16
  Type: Initial release
  
• Version 1.1: 2024-01-10
  Changes: Data collection, Database references, Refinement description