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csl4

Gene
CSL4
Protein
Exosome complex component CSL4
Organism
Saccharomyces cerevisiae (strain ATCC 204508 / S288c)
Length
292 amino acids
Function
Non-catalytic component of the RNA exosome complex which has 3'->5' exoribonuclease activity and participates in a multitude of cellular RNA processing and degradation events. In the nucleus, the RNA exosome complex is involved in proper maturation of stable RNA species such as rRNA, snRNA and snoRNA, in the elimination of RNA processing by-products and non-coding 'pervasive' transcripts, such as antisense RNA species and cryptic unstable transcripts (CUTs), and of mRNAs with processing defects, thereby limiting or excluding their export to the cytoplasm. In the cytoplasm, the RNA exosome complex is involved in general mRNA turnover and in RNA surveillance pathways, preventing translation of aberrant mRNAs. The catalytic inactive RNA exosome core complex of 9 subunits (Exo-9) is proposed to play a pivotal role in the binding and presentation of RNA for ribonucleolysis, and to serve as a scaffold for the association with catalytic subunits and accessory proteins or complexes.
Similarity
Belongs to the CSL4 family.
Mass
31.583 kDa
Sequence
MACNFQFPEIAYPGKLICPQYGTENKDGEDIIFNYVPGPGTKLIQYEHNGRTLEAITATLVGTVRCEEEKKTDQEEEREGTDQSTEEEKSVDASPNDVTRRTVKNILVSVLPGTEKGRKTNKYANNDFANNLPKEGDIVLTRVTRLSLQRANVEILAVEDKPSPIDSGIGSNGSGIVAAGGGSGAATFSVSQASSDLGETFRGIIRSQDVRSTDRDRVKVIECFKPGDIVRAQVLSLGDGTNYYLTTARNDLGVVFARAANGAGGLMYATDWQMMTSPVTGATEKRKCAKPF

Gene
csl4
Protein
Exosome complex component Csl4
Organism
Saccharolobus solfataricus (strain ATCC 35092 / DSM 1617 / JCM 11322 / P2)
Length
189 amino acids
Function
Non-catalytic component of the exosome, which is a complex involved in RNA degradation. Increases the RNA binding and the efficiency of RNA degradation. Helpful for the interaction of the exosome with A-poor RNAs.
Similarity
Belongs to the CSL4 family.
Mass
21.004 kDa
Sequence
MRTQGELTLPGEELAVIEEFMTGDGTYEQNGIVRAAVVGKIFYDMLNRKSNVLGFKKIIFQHLKKAKYVIGIVNSIKEDSALVSIVGIEERGLASPISAYLHISQISNKKINNVTDAIKIGDVIKAKLLSYTFPLALTIKMKDLGVIYARCSRCGYLLIKQDENNLKCQRCGNIEQRKIGSYMVKKGGN

Gene
csl4
Protein
Exosome complex component csl4
Organism
Schizosaccharomyces pombe (strain 972 / ATCC 24843)
Length
181 amino acids
Function
Non-catalytic component of the RNA exosome complex which has 3'->5' exoribonuclease activity and participates in a multitude of cellular RNA processing and degradation events. In the nucleus, the RNA exosome complex is involved in proper maturation of stable RNA species such as rRNA, snRNA and snoRNA, in the elimination of RNA processing by-products and non-coding 'pervasive' transcripts, such as antisense RNA species and cryptic unstable transcripts (CUTs), and of mRNAs with processing defects, thereby limiting or excluding their export to the cytoplasm. In the cytoplasm, the RNA exosome complex is involved in general mRNA turnover and in RNA surveillance pathways, preventing translation of aberrant mRNAs. The catalytic inactive RNA exosome core complex of 9 subunits (Exo-9) is proposed to play a pivotal role in the binding and presentation of RNA for ribonucleolysis, and to serve as a scaffold for the association with catalytic subunits and accessory proteins or complexes (By similarity).
Similarity
Belongs to the CSL4 family.
Mass
19.89 kDa
Sequence
MNLVLPGQVVARGAPNGEGTVKRGDYIISTRTGIFDPEKNSVTYPRKVEETAVLPNVGSIVLARVSRINARQATVNISVVDDVCTKDEFQGVIHVQDIRATEKNKVKVQNSFRPGDIVRALVISLGDGSSYFLTTARNDLGVIFAQSSETGEQMFPVDYQHMQTKSGYTEMRKCAKPILDE

Gene
csl4
Protein
Exosome complex component Csl4
Organism
Archaeoglobus fulgidus (strain ATCC 49558 / VC-16 / DSM 4304 / JCM 9628 / NBRC 100126)
Length
179 amino acids
Function
Non-catalytic component of the exosome, which is a complex involved in RNA degradation. Increases the RNA binding and the efficiency of RNA degradation. Helpful for the interaction of the exosome with A-poor RNAs (Probable).
Similarity
Belongs to the CSL4 family.
Mass
19.597 kDa
Sequence
MRFVMPGDRIGSAEEYVKGEGVYEEGGELFAAVAGKLIIKDRVAKVESISPIPEIVKGDVVLGRVVDLRNSIALIEVSSKKGENRGPSNRGIGILHVSNVDEGYVKEISEAVGYLDILKARVIGDNLRLSTKEEEMGVLRALCSNCKTEMVREGDILKCPECGRVEKRKISTDYGKGEW