DBR1 protein (Saccharomyces cerevisiae) - STRING interaction network
"DBR1" - RNA lariat debranching enzyme, involved in intron turnover in Saccharomyces cerevisiae
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Known Interactions
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experimentally determined
Predicted Interactions
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Gene Fusion
DBR1RNA lariat debranching enzyme, involved in intron turnover; required for efficient Ty1 transposition; Cleaves the 2’-5’ phosphodiester linkage at the branch point of lariat intron pre-mRNAs after splicing and converts them into linear molecules that are subsequently degraded. It thereby facilitates ribonucleotide turnover. It also participates in Ty1 retrovirus-like transposition via an RNA lariat intermediate in cDNA synthesis (405 aa)    
Predicted Functional Partners:
Putative protein of unconfirmed function; green fluorescent protein (GFP)-fusion protein localizes to the nucleus; Involved in branched RNA metabolism, modulating the turnover of lariat-intron pre-mRNAs by the lariat-debranching enzyme DBR1. Enhances the debranching activity of DBR1 in vitro (507 aa)
DEAH-box RNA-dependent ATPase/ATP-dependent RNA helicase, associates with lariat intermediates before the second catalytic step of splicing; mediates ATP-dependent mRNA release from the spliceosome and unwinds RNA duplexes; Acts late in the splicing of pre-mRNA. Mediates the release of the spliced mRNA from spliceosomes (1145 aa)
DEAH-box RNA helicase involved in second catalytic step of splicing; exhibits ATP-dependent RNA unwinding activity; mediates the release of Yju2p and Cwc25p in the second step; in the absence of ATP, stabilizes the binding of Cwc25p to the spliceoso /.../the first catalytic step; Influences the fidelity of branchpoint recognition in yeast splicing. This is RNA-dependent ATPase which is essential for viability. It may mediate one of the many ATP-requiring steps of spliceosome assembly and that accuracy of branchpoint recognition may be coupled to ATP binding and/or hydrolysis (1071 aa)
ATP-dependent 3’-5’ RNA helicase of the Dead-box family, involved in nuclear RNA processing and degradation both as a component of the TRAMP complex and in TRAMP independent processes; has a KOW domain that shows RNA binding activity; ATP-dependent RNA helicase required for the 3’-end formation of 5.8S RNA. Cofactor for the exosome complex that unwinds secondary structure in pre-rRNA. Required for nucleocytoplasmic transport of mRNA. May serve as a chaperone which translocates or normalizes the structure of mRNAs in preparation for export. Component of the TRAMP complex which has a pol [...] (1073 aa)
Ski complex component and putative RNA helicase, mediates 3’-5’ RNA degradation by the cytoplasmic exosome; null mutants have superkiller phenotype of increased viral dsRNAs and are synthetic lethal with mutations in 5’-3’ mRNA decay; RNA helicase component of the SKI complex involved in 3’-mRNA degradation pathway. Represses dsRNA virus propagation by specifically blocking translation of viral mRNAs, perhaps recognizing the absence of CAP or poly(A). Essential for cell growth only in the presence of M1 replicon (1287 aa)
Evolutionarily-conserved 5’-3’ exonuclease component of cytoplasmic processing (P) bodies involved in mRNA decay; plays a role in microtubule-mediated processes, filamentous growth, ribosomal RNA maturation, and telomere maintenance; Multifunctional protein that exhibits several independent functions at different levels of the cellular processes. 5’-3’ exonuclease component of the nonsense-mediated mRNA decay (NMD) which is a highly conserved mRNA degradation pathway, an RNA surveillance system whose role is to identify and rid cells of mRNA with premature termination codons and thus p [...] (1528 aa)
RNA helicase in the DEAH-box family, functions in both RNA polymerase I and polymerase II transcript metabolism, involved in release of the lariat-intron from the spliceosome; Pre-mRNA processing factor involved in disassembly of spliceosomes after the release of mature mRNA (767 aa)
RNA-dependent ATPase in the DEAH-box family, required for activation of the spliceosome before the first transesterification step in RNA splicing; orthologous to human protein DHX16; Involved in pre-mRNA splicing. Is required together with ATP and at least one other factor, for the first cleavage-ligation reaction. Functions as a molecular motor in the activation of the precatalytic spliceosome for the first transesterification reaction of pre-mRNA splicing by hydrolyzing ATP to cause the activation of the spliceosome without the occurrence of splicing. Capable of hydrolyzing nucleosid [...] (876 aa)
RNAase III; involved in rDNA transcription and rRNA processing; also cleaves a stem-loop structure at the 3’ end of U2 snRNA to ensure formation of the correct U2 3’ end; involved in polyadenylation-independent transcription termination; DsRNA-specific nuclease that cleaves eukaryotic pre- ribosomal RNA at the U3 snoRNP-dependent A0 site in the 5’- external transcribed spacer (ETS) and in the 3’-ETS. In vitro, cleaves synthetic 5’-ETS RNA A0 site in the absence of snoRNA or other factors. Has an essential growth function in addition to pre-rRNA processing (471 aa)
Subunit of box H/ACA snoRNP complex; required for pseudouridylation and processing of pre-18S rRNA; Required for ribosome biogenesis. Part of a complex which catalyzes pseudouridylation of rRNA. This involves the isomerization of uridine such that the ribose is subsequently attached to C5, instead of the normal N1. Pseudouridine ("psi") residues may serve to stabilize the conformation of rRNAs. Essential for growth (58 aa)
Your Current Organism:
Saccharomyces cerevisiae
NCBI taxonomy Id: 4932
Other names: Candida robusta, Pachytichospora, S. cerevisiae, Saccharomyces, Saccharomyces capensis, Saccharomyces cerevisiae, Saccharomyces italicus, Saccharomyces oviformis, Saccharomyces uvarum var. melibiosus, lager beer yeast, yeast
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