TY  - JOUR
A1  - Reimer, Georg
A1  - Raska, Ivan
A1  - Tan, Eng M.
A1  - Scheer, Ulrich
T1  - Human autoantibodies: probes for nucleolus structure and function
N2  - No abstract available
Y1  - 1987
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-41410
ER  - 
TY  - JOUR
A1  - Scheer, Ulrich
A1  - Thiry, Marc
A1  - Goessens, Guy
T1  - Structure, function and assembly of the nucleolus
N2  - No abstract available
Y1  - 1993
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-32057
ER  - 
TY  - JOUR
A1  - Fischer, Dagmar
A1  - Weißenberger, Dieter
A1  - Scheer, Ulrich
T1  - Assigning functions to nucleolar structures
N2  - Nucleoli provide the fascinating possibility of linking morphologically distinct structures such as those seen in the electron microscope with biochemical f eatures of the formation and step wise maturation of ribosomes. Localization of proteins by immunocytochemistry and of rRNA genes and their transcripts by in situ hybridization has greatly improved our understanding of the structural-functional relationships of the nucleolus. The present review describes some recent results obtained by electron microscopic in situ hybridization and argues that this approach has the potential to correlate each step of the complex pre-rRNA maturation pathway with nucleolar structures. Evidence is accumulating that the nucleolus-specific U3 snRNPs (small nuclear ribonucleoprotein particles) participate in rRNA processing events, similar to the role played by the nucleoplasmic snRNPs in mRNA maturation. The intranucleolar distribution of U3 snRNA is consistent with the view that it is involved in both early and late stages of pre-rRNA processing.
Y1  - 1991
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-34258
ER  - 
TY  - JOUR
A1  - Scheer, Ulrich
A1  - Benavente, Ricardo
T1  - Functional and dynamic aspects of the mammalian nucleolus
N2  - Nucleoli are the sites of ribosome biogenesis. Transcription of the ribosomal RNA genes as well as processing and initial packaging of their transcripts with ribosomal and non-ribosomal proteins all occur within the nucleolus in an ordered manner and under defined topological conditions. Components of the nucleolus have been localized by immunocytochemistry and their functional aspects investigated by microinjection of antibodies directed against the enzyme responsible for rDNA transcription, RNA polymerase I. The role of nascent transcripts in postmitotic formation of nucleoli will be discussed.
Y1  - 1990
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-34269
ER  - 
TY  - JOUR
A1  - Dabauvalle, Marie-Christine
A1  - Scheer, Ulrich
T1  - Assembly of nuclear pore complexes in Xenopus egg extract
N2  - No abstract available
Y1  - 1991
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-41194
ER  -