6K7R

Crystal structure of thymidylate synthase from shrimp

• PDB DOI: https://doi.org/10.2210/pdb6K7R/pdb

• Classification: TRANSFERASE
• Organism(s): Penaeus vannamei
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2019-06-08 Released: 2020-06-10 
• Deposition Author(s): Ma, Q., Zang, K., Liu, C.
• Funding Organization(s): Other government, Chinese Academy of Sciences, National Natural Science Foundation of China

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.54 Å
• R-Value Free: 0.179 
• R-Value Work: 0.165 
• R-Value Observed: 0.166 

Starting Model: experimental

Literature

Structural analysis of a shrimp thymidylate synthase reveals species-specific interactions with dUMP and raltitrexed.

Liu, C., Zang, K., Li, S., Li, F., Ma, Q.

(2020) J Oceanol Limnol 38: 1891-1899

• DOI: https://doi.org/10.1007/s00343-019-9184-8

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

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

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 68.06 kDa 
• Atom Count: 5,124 
• Modelled Residue Count: 556 
• Deposited Residue Count: 584 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Thymidylate synthase	A, B	292	Penaeus vannamei	Mutation(s): 0  Gene Names: TS EC: 2.1.1.45
UniProt
Find proteins for A0A423U5Z1 (Penaeus vannamei) Explore A0A423U5Z1  Go to UniProtKB:  A0A423U5Z1

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
UMP (Subject of Investigation/LOI)	C [auth A], D [auth B]	2'-DEOXYURIDINE 5'-MONOPHOSPHATE C9 H13 N2 O8 P JSRLJPSBLDHEIO-SHYZEUOFSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.54 Å
• R-Value Free: 0.179 
• R-Value Work: 0.165 
• R-Value Observed: 0.166 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 119.87	α = 90
b = 84.47	β = 93.31
c = 55.23	γ = 90

Software Package:

Software Name	Purpose
BUSTER	refinement
XDS	data reduction
Aimless	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2020-06-10 
Deposition Author(s): Ma, Q., Zang, K., Liu, C.

---

Funding Organization	Location	Grant Number
Other government	China	1000 talent program
Chinese Academy of Sciences	China	100 talent program
National Natural Science Foundation of China	China	--
National Natural Science Foundation of China	China	--

Revision History  

• Version 1.0: 2020-06-10
  Type: Initial release
  
• Version 1.1: 2021-06-30
  Changes: Database references
• Version 1.2: 2023-11-22
  Changes: Data collection, Database references, Refinement description