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- Anja Philippi, Robert Steinbauer, +5 authors Herbert Tschochner
- Nucleic acids research
- 2010

Ribosome biogenesis is tightly linked to cellular growth. A crucial step in the regulation of ribosomal RNA (rRNA) gene transcription is the formation of the complex between RNA polymerase I (Pol I) and the Pol I-dependent transcription factor Rrn3p. We found that TOR inactivation leads to proteasome-dependent degradation of Rrn3p and a strong reduction in… (More)

- Birgit Blaul, Robert Steinbauer, Philipp E Merkl, Rainer Merkl, Herbert Tschochner, Joachim Ruther
- Insect biochemistry and molecular biology
- 2014

Linoleic acid (C18:2(Δ9,12), LA) is crucial for many cell functions in organisms. It has long been a paradigm that animals are unable to synthesize LA from oleic acid (C18:1(Δ9), OA) because they were thought to miss Δ(12)-desaturases for inserting a double bound at the Δ(12)-position. Today it is clear that this is not true for all animals because some… (More)

- Alarich Reiter, Robert Steinbauer, +4 authors Joachim Griesenbeck
- Molecular and cellular biology
- 2011

Ribosome synthesis depends on nutrient availability, sensed by the target of rapamycin (TOR) signaling pathway in eukaryotes. TOR inactivation affects ribosome biogenesis at the level of rRNA gene transcription, expression of ribosomal proteins (r-proteins) and biogenesis factors, preribosome processing, and transport. Here, we demonstrate that upon TOR… (More)

- Franz Peherstorfer, Robert Steinbauer
- SIAM J. Math. Analysis
- 2000

- Michael Pilsl, Corinne Crucifix, +6 authors Patrick Schultz
- Nature communications
- 2016

Eukaryotic RNA polymerase I (Pol I) is specialized in rRNA gene transcription synthesizing up to 60% of cellular RNA. High level rRNA production relies on efficient binding of initiation factors to the rRNA gene promoter and recruitment of Pol I complexes containing initiation factor Rrn3. Here, we determine the cryo-EM structure of the Pol I-Rrn3 complex… (More)

- Jochen Gerber, Alarich Reiter, +6 authors Herbert Tschochner
- Nucleic acids research
- 2008

All nuclear RNA polymerases are phosphoprotein complexes. Yeast RNA polymerase I (Pol I) contains approximately 15 phosphate groups, distributed to 5 of the 14 subunits. Information about the function of the single phosphosites and their position in the primary, secondary and tertiary structure is lacking. We used a rapid and efficient way to purify yeast… (More)

- Francisco Marcellán, Franz Peherstorfer, Robert Steinbauer
- Adv. Comput. Math.
- 1996

Let {P.} be a sequence of orthogoual polynomials with respect to the measure d# on the unit circle and let 7vn = P. + Y']~=I A,,jP._j for n _> l. where A.j E C. It is shown that the sequence of linear combinations {7~.}, n >_ 2/, is orthogonal with respect to a positive measure da if and only if &r is a Bernstein-Szeg6 measure and d# is the product of a… (More)

Let {Φn}n∈N0 and {Φ̃n}n∈N0 be such systems of orthonormal polynomials on the unit circle that the recurrence coefficients of the perturbed polynomials Φ̃n behave asymptotically like those of Φn. We give, under weak assumptions on the system {Φn}n∈N0 and the perturbations, comparative asymptotics as for Φ̃n(z)/Φ ∗ n(z) etc., Φ ∗ n(z) := z Φ̄n( 1 z ), on the… (More)

- Franz Peherstorfer, Robert Steinbauer
- Journal of Approximation Theory
- 2009

- Francisco Marcellán, Franz Peherstorfer, Robert Steinbauer
- Adv. Comput. Math.
- 1997