3FYH

Recombinase in complex with ADP and metatungstate

PDB DOI: https://doi.org/10.2210/pdb3FYH/pdb

Classification: RECOMBINATION
Organism(s): Methanococcus voltae
Expression System: Escherichia coli
Mutation(s): Yes

Deposited: 2009-01-22 Released: 2009-09-01
Deposition Author(s): Li, Y., He, Y., Luo, Y.

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 1.90 Å
R-Value Free: 0.227
R-Value Work: 0.200
R-Value Observed: 0.200

wwPDB Validation 3D Report Full Report

Ligand Structure Quality Assessment

This is version 1.4 of the entry. See complete history.

Literature

Crystal structure of an archaeal Rad51 homologue in complex with a metatungstate inhibitor.

Li, Y., He, Y., Luo, Y.

(2009) Biochemistry 48: 6805-6810

PubMed: 19555119 Search on PubMed
DOI: https://doi.org/10.1021/bi900832t
Primary Citation of Related Structures:
3FYH

PubMed Abstract:
Archaeal RadAs are close homologues of eukaryal Rad51s ( approximately 40% sequence identities). These recombinases promote a hallmark strand exchange process between homologous single-stranded and double-stranded DNA substrates. This DNA-repairing function also plays a key role in cancer cells' resistance to chemo- and radiotherapy. Inhibition of the strand exchange process may render cancer cells more susceptible to therapeutic treatment. We found that metatungstate is a potent inhibitor of RadA from Methanococcus voltae. The tungsten cluster binds RadA in the axial DNA-binding groove. This polyanionic species appears to inhibit RadA by locking the protein in its inactive conformation.

Organizational Affiliation

Department of Biochemistry, University of Saskatchewan, A3 Health Sciences Building, 107 Wiggins Road, Saskatoon, Saskatchewan, Canada S7N 5E5.

Macromolecule Content

Total Structure Weight: 40.11 kDa
Atom Count: 2,460
Modelled Residue Count: 296
Deposited Residue Count: 322
Unique protein chains: 1

Macromolecules

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(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
DNA repair and recombination protein radA	A	322	Methanococcus voltae	Mutation(s): 1 Gene Names: radA
UniProt
Find proteins for O73948 (Methanococcus voltae) Explore O73948 Go to UniProtKB: O73948
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	O73948
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 4 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
ADP Query on ADP Download Ideal Coordinates CCD File SDF format, chain B [auth A] MOL2 format, chain B [auth A]	B [auth A]	ADENOSINE-5'-DIPHOSPHATE C₁₀ H₁₅ N₅ O₁₀ P₂ XTWYTFMLZFPYCI-KQYNXXCUSA-N		Interactions Focus chain B [auth A] Interactions & Density Focus chain B [auth A]
W Query on W Download Ideal Coordinates CCD File SDF format, chain AA [auth A] SDF format, chain BA [auth A] SDF format, chain CA [auth A] SDF format, chain F [auth A] SDF format, chain G [auth A] SDF format, chain H [auth A] SDF format, chain I [auth A] SDF format, chain J [auth A] SDF format, chain K [auth A] SDF format, chain L [auth A] SDF format, chain M [auth A] SDF format, chain N [auth A] SDF format, chain O [auth A] SDF format, chain P [auth A] SDF format, chain Q [auth A] SDF format, chain R [auth A] SDF format, chain S [auth A] SDF format, chain T [auth A] SDF format, chain U [auth A] SDF format, chain V [auth A] SDF format, chain W [auth A] SDF format, chain X [auth A] SDF format, chain Y [auth A] SDF format, chain Z [auth A] MOL2 format, chain AA [auth A] MOL2 format, chain BA [auth A] MOL2 format, chain CA [auth A] MOL2 format, chain F [auth A] MOL2 format, chain G [auth A] MOL2 format, chain H [auth A] MOL2 format, chain I [auth A] MOL2 format, chain J [auth A] MOL2 format, chain K [auth A] MOL2 format, chain L [auth A] MOL2 format, chain M [auth A] MOL2 format, chain N [auth A] MOL2 format, chain O [auth A] MOL2 format, chain P [auth A] MOL2 format, chain Q [auth A] MOL2 format, chain R [auth A] MOL2 format, chain S [auth A] MOL2 format, chain T [auth A] MOL2 format, chain U [auth A] MOL2 format, chain V [auth A] MOL2 format, chain W [auth A] MOL2 format, chain X [auth A] MOL2 format, chain Y [auth A] MOL2 format, chain Z [auth A]	AA [auth A] BA [auth A] CA [auth A] F [auth A] G [auth A] AA [auth A], BA [auth A], CA [auth A], F [auth A], G [auth A], H [auth A], I [auth A], J [auth A], K [auth A], L [auth A], M [auth A], N [auth A], O [auth A], P [auth A], Q [auth A], R [auth A], S [auth A], T [auth A], U [auth A], V [auth A], W [auth A], X [auth A], Y [auth A], Z [auth A]	TUNGSTEN ION W FZFRVZDLZISPFJ-UHFFFAOYSA-N		Interactions Focus chain AA [auth A] Focus chain BA [auth A] Focus chain CA [auth A] Focus chain F [auth A] Focus chain G [auth A] Focus chain H [auth A] Focus chain I [auth A] Focus chain J [auth A] Focus chain K [auth A] Focus chain L [auth A] Focus chain M [auth A] Focus chain N [auth A] Focus chain O [auth A] Focus chain P [auth A] Focus chain Q [auth A] Focus chain R [auth A] Focus chain S [auth A] Focus chain T [auth A] Focus chain U [auth A] Focus chain V [auth A] Focus chain W [auth A] Focus chain X [auth A] Focus chain Y [auth A] Focus chain Z [auth A] Interactions & Density Focus chain AA [auth A] Focus chain BA [auth A] Focus chain CA [auth A] Focus chain F [auth A] Focus chain G [auth A] Focus chain H [auth A] Focus chain I [auth A] Focus chain J [auth A] Focus chain K [auth A] Focus chain L [auth A] Focus chain M [auth A] Focus chain N [auth A] Focus chain O [auth A] Focus chain P [auth A] Focus chain Q [auth A] Focus chain R [auth A] Focus chain S [auth A] Focus chain T [auth A] Focus chain U [auth A] Focus chain V [auth A] Focus chain W [auth A] Focus chain X [auth A] Focus chain Y [auth A] Focus chain Z [auth A]
MG Query on MG Download Ideal Coordinates CCD File SDF format, chain C [auth A] SDF format, chain D [auth A] MOL2 format, chain C [auth A] MOL2 format, chain D [auth A]	C [auth A], D [auth A]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N		Interactions Focus chain C [auth A] Focus chain D [auth A] Interactions & Density Focus chain C [auth A] Focus chain D [auth A]
NA Query on NA Download Ideal Coordinates CCD File SDF format, chain E [auth A] MOL2 format, chain E [auth A]	E [auth A]	SODIUM ION Na FKNQFGJONOIPTF-UHFFFAOYSA-N		Interactions Focus chain E [auth A] Interactions & Density Focus chain E [auth A]