4RF1: ORF1ab protein

Crystal structure of the Middle-East respiratory syndrome coronavirus papain-like protease in complex with ubiquitin (space group P63). Determined by X-ray diffraction at 2.15 Å resolution. Released 22 Oct 2014.

Method
X-ray diffraction
Resolution
2.15 Å
Organisms
Human betacoronavirus 2c Jordan-N3/2012, Homo sapiens
Chains
2
Atoms
3,227
Mol. weight
45.07 kDa
Ligands
ZN, PGO, 3CN
Released
22 Oct 2014

Explore 4RF1 in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

4RF1 contains 17 α-helices and 30 β-strands across 2 chains. Residue ranges use author residue numbering, as in the PDB file, from PDBe. To see them in 3D, choose the Cartoon representation with Secondary structure coloring: helices, sheets and coils get different colors.

Chain A: 13 helices, 22 β-strands

ElementResiduesLengthSheet
β-strand1484-149071
β-strand1497-150261
α-helix1507-15104
β-strand1514-151631
β-strand1519-152021
α-helix1528-15303
β-strand1534-153741
α-helix1543-155311
α-helix1560-157011
α-helix1571-15733
β-strand1576-157942
β-strand1582-158542
α-helix1586-15872
α-helix1592-160110
β-strand1607-160933
α-helix1612-162312
α-helix1627-163610
α-helix1647-16559
β-strand1658-166033
β-strand1665-167284
β-strand1676-168384
α-helix1684-16885
β-strand1689-169135
α-helix1696-16994
α-helix17021
β-strand1703-170644
β-strand1712-1722114
β-strand1725-1737135
β-strand1746-175165
β-strand175716
β-strand1759-176575
β-strand1770-177455
β-strand1777-178155
β-strand1783-1793115
β-strand1796-179944
Chain B: 4 helices, 8 β-strands
ElementResiduesLengthSheet
β-strand2-657
β-strand12-1657
β-strand2218
α-helix23-319
α-helix38-403
β-strand41-4557
β-strand48-4927
α-helix50-512
β-strand5518
α-helix57-593
β-strand66-7167
β-strand7416

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
ORF1ab proteinAprotein324Human betacoronavirus 2c Jordan-N3/2012M4STU1
Ubiquitin-60S ribosomal protein L40Bprotein75Homo sapiensP62987 (AlphaFold model)
Sequence of entity 1 (A), FASTA
>4RF1_1 ORF1ab protein (chains A)
TQQLTIEVLVTVDGVNFRTVVLNNKNTYRSQLGCVFFNGADISDTIPDEKQNGHSLYLAD
NLTADETKALKELYGPVDPTFLHRFYSLKAAVHGWKMVVCDKVRSLKLSDNNCYLNAVIM
TLDLLKDIKFVIPALQHAFMKHKGGDSTDFIALIMAYGNCTFGAPDDASRLLHTVLAKAE
LCCSARMVWREWCNVCGIKDVVLQGLKACCYVGVQTVEDLRARMTYVCQCGGERHRQLVE
HTTPWLLLSGTPNEKLVTTSTAPDFVAFNVFQGIETAVGHYVHARLKGGLILKFDSGTVS
KTSDWKCKVTDVLFPGQKYSSDCN
Sequence of entity 2 (B), FASTA
>4RF1_2 Ubiquitin-60S ribosomal protein L40 (chains B)
MQIFVKTLTGKTITLEVEPSDTIENVKAKIQDKEGIPPDQQRLIFAGKQLEDGRTLSDYN
IQKESTLHLVLRLRG

Ligands and cofactors

IDNameFormulaCopies
ZNZinc ionZn1
PGOS-1,2-propanediolC3 H8 O25
3CN3-aminopropaneC3 H9 N1

Primary citation

Crystal Structure of the Middle East Respiratory Syndrome Coronavirus (MERS-CoV) Papain-like Protease Bound to Ubiquitin Facilitates Targeted Disruption of Deubiquitinating Activity to Demonstrate Its Role in Innate Immune Suppression. Bailey-Elkin, B.A., Knaap, R.C., Johnson, G.G. et al. J Biol Chem (2014) 289:34667-34682. DOI 10.1074/jbc.M114.609644 · PubMed

Other PDB entries of the same protein (UniProt M4STU1), best resolution first:

Browse structure collections

About this viewer

MolViewer shows 4RF1 directly in your browser with nothing to install. Switch between cartoon, ball-and-stick, spacefill and surface views, color by chain, secondary structure or B-factor, measure distances, angles and dihedrals, and share or embed the view.