7ASK

43S preinitiation complex from Trypanosoma cruzi with the kDDX60 helicase bound with ATP

External Resource: Annotation

Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth F]	PF23002	ATP-dependent RNA helicase DDX60, PIN-like domain (PIN-like_DDX60)	ATP-dependent RNA helicase DDX60, PIN-like domain	This domain is found N-terminal in the homologues of ATP-dependent RNA helicase DDX60 (also known as DEAD-box RNA helicase). This helicase binds ssRNA, dsRNA and dsDNA and can promote the binding of RIGI to dsRNA. DDX60 is non-essential in mammals [1 ...	This domain is found N-terminal in the homologues of ATP-dependent RNA helicase DDX60 (also known as DEAD-box RNA helicase). This helicase binds ssRNA, dsRNA and dsDNA and can promote the binding of RIGI to dsRNA. DDX60 is non-essential in mammals [1] but it is required for the cell fitness in kinetoplastids and trypanosomatids and plays a specific role in translation initiation in these parasites [2]. In Trypanosoma cruzi, k-DDX60 binds both to the head and the body of the 40S ribosome subunit. It is also involved in the stabilization of the 43S PIC and the remodeling of the 43S PIC mRNA channel [2]. The domain represented by this entry adopts a globular structure with a significant structural similarity to PIN domains.	Domain
A [auth F]	PF00270	DEAD/DEAH box helicase (DEAD)	DEAD/DEAH box helicase	Members of this family include the DEAD and DEAH box helicases. Helicases are involved in unwinding nucleic acids. The DEAD box helicases are involved in various aspects of RNA metabolism, including nuclear transcription, pre mRNA splicing, ribosome ...	Members of this family include the DEAD and DEAH box helicases. Helicases are involved in unwinding nucleic acids. The DEAD box helicases are involved in various aspects of RNA metabolism, including nuclear transcription, pre mRNA splicing, ribosome biogenesis, nucleocytoplasmic transport, translation, RNA decay and organellar gene expression.	Domain
A [auth F]	PF00271	Helicase conserved C-terminal domain (Helicase_C)	Helicase conserved C-terminal domain	The Prosite family is restricted to DEAD/H helicases, whereas this domain family is found in a wide variety of helicases and helicase related proteins. It may be that this is not an autonomously folding unit, but an integral part of the helicase.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth F]	kDDX60	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding nucleic acid binding	-	intracellular anatomical structure cytoplasm cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth F]	IPR001650	Helicase, C-terminal domain-like	Domain
A [auth F]	IPR014001	Helicase superfamily 1/2, ATP-binding domain	Domain
A [auth F]	IPR011545	DEAD/DEAH box helicase domain	Domain
A [auth F]	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.