Structure of PDB 5n90 Chain B

Receptor sequence

>5n90B (length=849) Species: 7227 (Drosophila melanogaster)

IRLGCNVSAPSGVLERVKELMEDYSRAPDAKFQQQFRHLLSVNFEEFVAE
TKERNADLDWVNPKLDERLQLELGQRQLEENAKKRLEARKKLPTMKYADD
IIQAVRENQVILIVGSTGCGKTTQVPQILLDDAISRGCASSCRIICTQPR
RISAIAIAEWVSYERCESLGNSVGYQIRLESRKARERASITYCTTGVLLQ
QLQSDPLMHNLSVLILDEIHERSVETDLLMGLLKVILPHRPDLKVILMSA
TVREQDFCDYFNNCPMFRIEGVMFPVKMLYLEDVLSKTNYEFQKRMKHEA
MIEPYLRRIRNSYDSRVLDKLRLPESEGCEDIDFIADLVYYICENEPEGA
ILVFLPGYDKISQLYNILDKPKTSKGQRWRDHMAVFPLHSLMQSGEQQAV
FRRPPAGQRKVIISTIIAETSVTIDDVVYVINSGRTKATNYDIETNIQSL
DEVWVTKANTQQRRGRAGRVRPGICYNLFSRAREDRMDDIPTPEILRSKL
ESIILSLKLLHIDDPYRFLQTLINAPNPEAIKMGVELLKRIEALDQTGTL
TPLGMHLAKLPIDPQMGKMILMSALFCCLDPITSAAAALSFKSPFYSPLG
KESRVDEIKRRMARNMRSDHLMVHNTIIAYRDSRYSHAERDFCYKNFLSS
MTLQQLERMKNQFSELLYNYKFLASSNCKDAASNKNSEKIPLLRAIIGAG
LYPNMAHLRKSRRAIHTMATDDGRRVNFHPSSVNSGESGFDSAYFVYFQR
QKSTDLFLLDSTMVFPMALIIFGDGVEAGVTQNTPYLCVAKTYYFKCNRE
TADVVIQLRSNLEKLLLKKALYPAPIEENGYEKQLIKAIELLLSLDERL

3D structure

• PDB: 5n90 Molecular Mechanistic Insights into Drosophila DHX36-Mediated G-Quadruplex Unfolding: A Structure-Based Model.
• Chain: B
• Resolution: 3.069 Å

Enzymatic activity

• Enzyme Commision number: 3.6.4.13: RNA helicase.

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	dna	B	R211 R212 R239 T255 Q262 Q264 S265 G431 Y432 H463 S464 L465 T489 S495 K511 T513 E568 P635 I636 S664 F665 E676 R793 H809 P810 S833 T834 F837	R150 R151 R178 T194 Q201 Q203 S204 G357 Y358 H389 S390 L391 T415 S421 K437 T439 E494 P561 I562 S590 F591 E602 R713 H729 P730 S753 T754 F757

Gene Ontology

Molecular Function

• GO:0002151 G-quadruplex RNA binding
• GO:0003676 nucleic acid binding
• GO:0003678 DNA helicase activity
• GO:0003723 RNA binding
• GO:0003724 RNA helicase activity
• GO:0004386 helicase activity
• GO:0005524 ATP binding
• GO:0016787 hydrolase activity
• GO:0051880 G-quadruplex DNA binding

Biological Process

• GO:0032508 DNA duplex unwinding
• GO:0044806 G-quadruplex DNA unwinding

Cellular Component

• GO:0005634 nucleus
• GO:0005737 cytoplasm

External links

• PDB: RCSB:5n90, PDBe:5n90, PDBj:5n90
• PDBsum: 5n90
• PubMed: 29429875
• UniProt: Q8SWT2