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At least 613 records · Page 34Linked to original sources
PubMed1995

RNase P--a 'Scarlet Pimpernel'.

RNase P is responsible for the maturation of the 5'-termini of tRNA molecules in all cells studied to date. This ribonucleoprotein has to recognize and identify its cleavage site on a large number of different precursors. This review covers what is currently known about the function of the catalytic subunit of Escherichia coli RNase P, M1 RNA, and the protein subunit, C5, in particular with respect to cleavage-site selection. Recent genetic and biochemical data show that the two C residues in the 3'-terminal CCA sequence of a precursor interact with the enzyme through Watson-Crick base-pairing. This is suggested to result in unfolding of the amino acid acceptor-stem and exposure of the cleavage site. Furthermore, other close contact points between M1 RNA and its substrate have recently been identified. These data, together with the two existing three-dimensional structure models of M1 RNA in complex with its substrate, establish a platform that will enable us to seek an understanding of the underlying mechanism of cleavage by this elusive enzyme.

Base Sequence↗
PubMed1992

HLA class I nucleotide sequences, 1992.

The HLA Class I sequences included in this compilation are taken from publications listed in the papers: Nomenclature for factors of the HLA system, 1991 (1), Nomenclature for factors of the HLA system, 1990 (2), and Nomenclature for factors of the HLA system, 1989 (3). Due to the increased number of sequences, we have only included sequences for exons 2, 3 and 4 in this compilation. Where discrepancies have arisen between reported sequences, the original authors have been contacted where possible, and necessary amendments to published sequences have been incorporated into this alignment. Future sequencing may identify errors in this list and we would welcome any evidence that helps to maintain the accuracy of this compilation. In the sequence alignments, identity between nucleotides is indicated by a hyphen (-). An unavailable sequence is indicated by a period (.). Gaps in the sequence are inserted to maintain the alignment between different alleles showing variation in amino acid number.

Base Sequence↗
PubMed1992

HLA class II nucleotide sequences, 1992.

The HLA Class II sequences included in this compilation are taken from publications listed in the papers: Nomenclature for factors of the HLA system, 1991 (1), Nomenclature for factors of the HLA system, 1990 (2), and Nomenclature for factors of the HLA system, 1989 (3). Where discrepancies have arisen between reported sequences, the original authors have been contacted, where possible, and necessary amendments to published sequences have been incorporated into this alignment. Future sequencing may identify errors in this list and we would welcome any evidence that helps to maintain the accuracy of this compilation. In the sequence alignments, identity between residues is indicated by a hyphen (-). An unavailable sequence is indicated by an asterisk (*), gaps in the sequence are inserted to maintain the alignment between different alleles showing variation in amino acid number.

Base Sequence↗