Structure of PDB 5rl8 Chain B

Receptor sequence
>5rl8B (length=585) Species: 2697049 (Severe acute respiratory syndrome coronavirus 2) [Search protein sequence]
VGACVLCNSQTSLRCGACIRRPFLCCKCCYDHVISTSHKLVLSVNPYVCN
APGCDVTDVTQLYLGGMSYYCKSHKPPISFPLCANGQVFGLYKNTCVGSD
NVTDFNAIATCDWTNAGDYILANTCTERLKLFAAETLKATEETFKLSYGI
ATVREVLSDRELHLSWEVGKPRPPLNRNYVFTGYRVTKNSKVQIGEYTFE
KGAVVYRGTTTYKLNVGDYFVLTSHTVMPLSAPTLVPQEHYVRITGLYPT
LNISDEFSSNVANYQKVGMQKYSTLQGPPGTGKSHFAIGLALYYPSARIV
YTACSHAAVDALCEKALKYLPIDKCSRIIPAVECFDKFKVNSTLEQYVFC
TVNALPETTADIVVFDEISMATNYDLSVVNARLRAKHYVYIGDPAQLPAP
RTLLTKGTLEPEYFNSVCRLMKTIGPDMFLGTCRRCPAEIVDTVSALVYD
NKLKAHKDKSAQCFKMFYKGVITHDVSSAINRPQIGVVREFLTRNPAWRK
AVFISPYNSQNAVASKILGLPTQTVDSSQGSEYDYVIFTQTTETAHSCNV
NRFNVAITRAKVGILCIMSDRDLYDKLQFTSLEIP
3D structure
PDB5rl8 Structure, mechanism and crystallographic fragment screening of the SARS-CoV-2 NSP13 helicase.
ChainB
Resolution2.21 Å
3D
structure
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Enzymatic activity
Enzyme Commision number 2.1.1.56: mRNA (guanine-N(7))-methyltransferase.
2.1.1.57: methyltransferase cap1.
2.7.7.48: RNA-directed RNA polymerase.
2.7.7.50: mRNA guanylyltransferase.
3.1.13.-
3.4.19.12: ubiquitinyl hydrolase 1.
3.4.22.-
3.4.22.69: SARS coronavirus main proteinase.
3.6.4.12: DNA helicase.
3.6.4.13: RNA helicase.
4.6.1.-
Interaction with ligand
Site
#		 Ligand Ligand
chain		 Binding residues on receptor
(original residue number in PDB)		 Binding residues on receptor
(residue number reindexed from 1)		 Binding affinity
BS01 VVG B I333 N349 A362 L363 P364 I328 N341 A354 L355 P356
BS02 VVG B F81 A85 F90 F80 A84 F89
BS03 ZN B C16 C19 H33 H39 C15 C18 H32 H38
BS04 ZN B C5 C8 C26 C29 C4 C7 C25 C28
BS05 ZN B C50 C55 C72 H75 C49 C54 C71 H74
BS06 PO4 B G285 G287 K288 G280 G282 K283
BS07 PO4 B P284 K288 Q404 R443 G538 R567 P279 K283 Q396 R435 G530 R559
Gene Ontology
Molecular Function
GO:0004386 helicase activity
GO:0005524 ATP binding
GO:0008270 zinc ion binding

View graph for
Molecular Function
External links
PDB RCSB:5rl8, PDBe:5rl8, PDBj:5rl8
PDBsum5rl8
PubMed34381037
UniProtP0DTD1|R1AB_SARS2 Replicase polyprotein 1ab (Gene Name=rep)

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