3C9U

AaThiL complexed with ADP and TPP

PDB DOI: https://doi.org/10.2210/pdb3C9U/pdb

Classification: TRANSFERASE
Organism(s): Aquifex aeolicus
Expression System: Escherichia coli
Mutation(s): No

Deposited: 2008-02-18 Released: 2008-03-18
Deposition Author(s): McCulloch, K.M., Kinsland, C., Begley, T.P., Ealick, S.E.

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 1.48 Å
R-Value Free: 0.219
R-Value Work: 0.201
R-Value Observed: 0.201

wwPDB Validation 3D Report Full Report

Ligand Structure Quality Assessment

This is version 1.2 of the entry. See complete history.

Literature

Structural studies of thiamin monophosphate kinase in complex with substrates and products.

McCulloch, K.M., Kinsland, C., Begley, T.P., Ealick, S.E.

(2008) Biochemistry 47: 3810-3821

PubMed: 18311927 Search on PubMedSearch on PubMed Central
DOI: https://doi.org/10.1021/bi800041h
Primary Citation of Related Structures:
3C9R, 3C9S, 3C9T, 3C9U

PubMed Abstract:
Thiamin monophosphate kinase (ThiL) catalyzes the ATP-dependent phosphorylation of thiamin monophosphate (TMP) to form thiamin pyrophosphate (TPP), the active form of vitamin B 1. ThiL is a member of a small ATP binding superfamily that also includes the purine biosynthetic enzymes, PurM and PurL, NiFe hydrogenase maturation protein, HypE, and selenophosphate synthase, SelD. The latter four enzymes are believed to utilize phosphorylated intermediates during catalysis. To understand the mechanism of ThiL and its relationship to the other superfamily members, we determined the structure of Aquifex aeolicus ThiL (AaThiL) with nonhydrolyzable AMP-PCP and TMP, and also with the products of the reaction, ADP and TPP. The results suggest that AaThiL utilizes a direct, inline transfer of the gamma-phosphate of ATP to TMP rather than a phosphorylated enzyme intermediate. The structure of ThiL is compared to those of PurM, PurL, and HypE, and the ATP binding site is compared to that of PurL, for which nucleotide complexes are available.

Organizational Affiliation

Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, USA.

Macromolecule Content

Total Structure Weight: 78.89 kDa
Atom Count: 5,569
Modelled Residue Count: 620
Deposited Residue Count: 684
Unique protein chains: 1

Macromolecules

Find similar proteins by:

(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Thiamine monophosphate kinase	A, B	342	Aquifex aeolicus	Mutation(s): 0 Gene Names: thiL EC: 2.7.4.16
UniProt
Find proteins for O67883 (Aquifex aeolicus (strain VF5)) Explore O67883 Go to UniProtKB: O67883
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	O67883
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
ADP Query on ADP Download Ideal Coordinates CCD File SDF format, chain J [auth A] SDF format, chain O [auth B] MOL2 format, chain J [auth A] MOL2 format, chain O [auth B]	J [auth A], O [auth B]	ADENOSINE-5'-DIPHOSPHATE C₁₀ H₁₅ N₅ O₁₀ P₂ XTWYTFMLZFPYCI-KQYNXXCUSA-N		Interactions Focus chain J [auth A] Focus chain O [auth B] Interactions & Density Focus chain J [auth A] Focus chain O [auth B]
TPP Query on TPP Download Ideal Coordinates CCD File SDF format, chain I [auth A] SDF format, chain P [auth B] MOL2 format, chain I [auth A] MOL2 format, chain P [auth B]	I [auth A], P [auth B]	THIAMINE DIPHOSPHATE C₁₂ H₁₉ N₄ O₇ P₂ S AYEKOFBPNLCAJY-UHFFFAOYSA-O		Interactions Focus chain I [auth A] Focus chain P [auth B] Interactions & Density Focus chain I [auth A] Focus chain P [auth B]
MG Query on MG Download Ideal Coordinates CCD File SDF format, chain E [auth A] SDF format, chain M [auth B] SDF format, chain C [auth A] SDF format, chain D [auth A] SDF format, chain F [auth A] SDF format, chain G [auth A] SDF format, chain H [auth A] SDF format, chain K [auth B] SDF format, chain L [auth B] SDF format, chain N [auth B] MOL2 format, chain E [auth A] MOL2 format, chain M [auth B] MOL2 format, chain C [auth A] MOL2 format, chain D [auth A] MOL2 format, chain F [auth A] MOL2 format, chain G [auth A] MOL2 format, chain H [auth A] MOL2 format, chain K [auth B] MOL2 format, chain L [auth B] MOL2 format, chain N [auth B]	C [auth A] D [auth A] E [auth A] F [auth A] G [auth A] C [auth A], D [auth A], E [auth A], F [auth A], G [auth A], H [auth A], K [auth B], L [auth B], M [auth B], N [auth B]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N		Interactions Focus chain C [auth A] Focus chain D [auth A] Focus chain E [auth A] Focus chain F [auth A] Focus chain G [auth A] Focus chain H [auth A] Focus chain K [auth B] Focus chain L [auth B] Focus chain M [auth B] Focus chain N [auth B] Interactions & Density Focus chain C [auth A] Focus chain D [auth A] Focus chain E [auth A] Focus chain F [auth A] Focus chain G [auth A] Focus chain H [auth A] Focus chain K [auth B] Focus chain L [auth B] Focus chain M [auth B] Focus chain N [auth B]