Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

ChainsDomain InfoClassFoldSuperfamilyFamilyDomainSpeciesProvenance Source (Version)
Ad2xaua3 All alpha proteins DNA/RNA-binding 3-helical bundle 'Winged helix' DNA-binding domain automated matches automated matches BAKER'S YEAST (Saccharomyces cerevisiae ) [TaxId: 4932 ], SCOPe (2.08)
Ad2xaua4 All alpha proteins Sec63 N-terminal domain-like Sec63 N-terminal domain-like automated matches automated matches BAKER'S YEAST (Saccharomyces cerevisiae ) [TaxId: 4932 ], SCOPe (2.08)
Ad2xaua5 All beta proteins OB-fold Nucleic acid-binding proteins automated matches automated matches BAKER'S YEAST (Saccharomyces cerevisiae ) [TaxId: 4932 ], SCOPe (2.08)
Ad2xaua1 Alpha and beta proteins (a/b) P-loop containing nucleoside triphosphate hydrolases P-loop containing nucleoside triphosphate hydrolases automated matches automated matches BAKER'S YEAST (Saccharomyces cerevisiae ) [TaxId: 4932 ], SCOPe (2.08)
Bd2xaub3 All alpha proteins DNA/RNA-binding 3-helical bundle 'Winged helix' DNA-binding domain automated matches automated matches BAKER'S YEAST (Saccharomyces cerevisiae ) [TaxId: 4932 ], SCOPe (2.08)
Bd2xaub4 All alpha proteins Sec63 N-terminal domain-like Sec63 N-terminal domain-like automated matches automated matches BAKER'S YEAST (Saccharomyces cerevisiae ) [TaxId: 4932 ], SCOPe (2.08)
Bd2xaub5 All beta proteins OB-fold Nucleic acid-binding proteins automated matches automated matches BAKER'S YEAST (Saccharomyces cerevisiae ) [TaxId: 4932 ], SCOPe (2.08)
Bd2xaub1 Alpha and beta proteins (a/b) P-loop containing nucleoside triphosphate hydrolases P-loop containing nucleoside triphosphate hydrolases automated matches automated matches BAKER'S YEAST (Saccharomyces cerevisiae ) [TaxId: 4932 ], SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
AOB_NTP_binde2xauA5 A: beta barrelsX: OB-foldH: Nucleic acid-binding proteins (From Topology)T: Nucleic acid-binding proteinsF: OB_NTP_bindECOD (1.6)
AHA2_Ne2xauA3 A: alpha arraysX: HTHH: HTHT: wingedF: HA2_NECOD (1.6)
AHA2_Ce2xauA4 A: alpha arraysX: Sec63 N-terminal subdomain-like (From Topology)H: Sec63 N-terminal subdomain-like (From Topology)T: Sec63 N-terminal subdomain-likeF: HA2_CECOD (1.6)
AKOG0925e2xauA6 A: a+b two layersX: C-terminal domain in RNA helicases (From Topology)H: C-terminal domain in RNA helicases (From Topology)T: C-terminal domain in RNA helicasesF: KOG0925ECOD (1.6)
AHelicase_C_7e2xauA2 A: a/b three-layered sandwichesX: P-loop domains-likeH: P-loop domains-relatedT: P-loop containing nucleoside triphosphate hydrolasesF: Helicase_C_7ECOD (1.6)
ADEAD_3e2xauA1 A: a/b three-layered sandwichesX: P-loop domains-likeH: P-loop domains-relatedT: P-loop containing nucleoside triphosphate hydrolasesF: DEAD_3ECOD (1.6)
BOB_NTP_binde2xauB1 A: beta barrelsX: OB-foldH: Nucleic acid-binding proteins (From Topology)T: Nucleic acid-binding proteinsF: OB_NTP_bindECOD (1.6)
BHA2_Ne2xauB2 A: alpha arraysX: HTHH: HTHT: wingedF: HA2_NECOD (1.6)
BHA2_Ce2xauB3 A: alpha arraysX: Sec63 N-terminal subdomain-like (From Topology)H: Sec63 N-terminal subdomain-like (From Topology)T: Sec63 N-terminal subdomain-likeF: HA2_CECOD (1.6)
BHelicase_C_7e2xauB5 A: a/b three-layered sandwichesX: P-loop domains-likeH: P-loop domains-relatedT: P-loop containing nucleoside triphosphate hydrolasesF: Helicase_C_7ECOD (1.6)
BDEAD_3e2xauB4 A: a/b three-layered sandwichesX: P-loop domains-likeH: P-loop domains-relatedT: P-loop containing nucleoside triphosphate hydrolasesF: DEAD_3ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, B
PF04408Helicase associated domain (HA2), winged-helix (HA2_N)Helicase associated domain (HA2), winged-helixThe helicase associated domain (HA2) has an all alpha-helical fold and consists of a N-terminal winged-helix (WH) domain and a C-terminal degenerate helical-bundle domain, referred to as the ratchet-like domain [1,2,3]. These domains collaborate wit ...The helicase associated domain (HA2) has an all alpha-helical fold and consists of a N-terminal winged-helix (WH) domain and a C-terminal degenerate helical-bundle domain, referred to as the ratchet-like domain [1,2,3]. These domains collaborate with RecA domains at the N-terminal in completing an RNA binding channel to allow the helicases to keep a stable grip on the RNA [3] and assure its correct function. This entry represents the WH domain, which connects the N- (RecA domains) and C-terminal domains (ratchet-like and OB-fold) of helicases.
Domain
A, B
PF07717Oligonucleotide/oligosaccharide-binding (OB)-fold (OB_NTP_bind)Oligonucleotide/oligosaccharide-binding (OB)-foldThis family is found towards the C-terminus of the DEAD-box helicases (Pfam:PF00270). In these helicases it is apparently always found in association with Pfam:PF04408. There do seem to be a couple of instances where it occurs by itself - e.g. Swiss: ...This family is found towards the C-terminus of the DEAD-box helicases (Pfam:PF00270). In these helicases it is apparently always found in association with Pfam:PF04408. There do seem to be a couple of instances where it occurs by itself - e.g. Swiss:Q84VZ2. The structure PDB:3i4u adopts an OB-fold. helicases (Pfam:PF00270). In these helicases it is apparently always found in association with Pfam:PF04408. This C-terminal domain of the yeast helicase contains an oligonucleotide/oligosaccharide-binding (OB)-fold which seems to be placed at the entrance of the putative nucleic acid cavity. It also constitutes the binding site for the G-patch-containing domain of Pfa1p. When found on DEAH/RHA helicases, this domain is central to the regulation of the helicase activity through its binding of both RNA and G-patch domain proteins [1].
Domain
A, B
PF00270DEAD/DEAH box helicase (DEAD)DEAD/DEAH box helicaseMembers 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, B
PF00271Helicase conserved C-terminal domain (Helicase_C)Helicase conserved C-terminal domainThe 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
A, B
PF21010Helicase associated domain (HA2), ratchet-like (HA2_C)Helicase associated domain (HA2), ratchet-likeThe helicase associated domain (HA2) has an all alpha-helical fold and consists of a N-terminal winged-helix (WH) domain (Pfam:PF04408) and a C-terminal degenerate helical-bundle domain, referred to as the ratchet-like domain [1,2,3]. These domains c ...The helicase associated domain (HA2) has an all alpha-helical fold and consists of a N-terminal winged-helix (WH) domain (Pfam:PF04408) and a C-terminal degenerate helical-bundle domain, referred to as the ratchet-like domain [1,2,3]. These domains collaborate with the RecA domains at the N-terminal in completing an RNA binding channel to allow the helicases to keep a stable grip on the RNA [3]. This entry represents the ratchet-like domain, which may be important for RNA translocation [1,2].
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A, B
PRE-MRNA-SPLICING FACTOR ATP-DEPENDENT RNA HELICASE PRP43