The DNA fragment d(CpGpCpGpCpG) crystallises as a left-handed double helical molecule with Watson-Crick base pairs and an antiparallel organisation of the sugar phosphate chains. The helix has two nucleotides in the asymmetric unit and contains twelve base pairs per turn. It differs significantly from right-handed B-DNA.

Molecular structure of a left-handed double helical DNA fragment at atomic resolution

https://mmbr.asm.org/content/mmbr/47/1/1.full.pdf

Comparison of initiation of protein synthesis in procaryotes, eucaryotes, and organelles.

https://www.cell.com/cell/pdf/0092-8674(78)90039-9.pdf

How do eucaryotic ribosomes select initiation regions in messenger RNA

The UNC operon nucleotide sequence, regulation and structure of ATP-synthase

Unique features in the ribosome binding site sequence of the gram-positive Staphylococcus aureus beta-lactamase gene.

Site-directed mutations in the initiator region of the bacteriophage Qβ coat cistron and their effect on ribosome binding☆

Preparation and characterization of form V DNA, the duplex DNA resulting from association of complementary, circular single-stranded DNA.

The 3′-termini of bacteriophage Qβ plus and minus strands

Modellversuche an 1,3,3-Trimethyl-2-formylmethylen-indolin und an 1-Formyl-11-methyl-2,3,4,11-tetrahydro-carbazol zeigen, dass diese vinylogen Formamide durch wasserige Mineralsaure unter Freisetzung von Ameisensaure zu den entsprechenden Desformyl-Verbindungen hydrolysiert werden. – Das Calebassenalkaloid Fluorocurarin (I) und sein N(a)-Methylderivat (IV) werden in analoger Weise in die Desformyl-Verbindungen III und VI umgewandelt. III entsteht auch durch Saurebehandlung von N(b)-Metho-akuammicin. Dadurch wird die von AGHORAMURTHY & ROBINSON postulierte Akuammicin-Formel V bewiesen. Das 19,20-Dihydro-Norderivat von III entsteht bei der Permanganatoxydation von Dihydro-desoxy-isostrychnin.

Ch. Weissmann

Papers

Site-directed mutations in the initiator region of the bacteriophage Qβ coat cistron and their effect on ribosome binding☆

Preparation and characterization of form V DNA, the duplex DNA resulting from association of complementary, circular single-stranded DNA.

The 3′-termini of bacteriophage Qβ plus and minus strands

Über Desformyl‐Verbindungen des C‐Fluorocurarins. Zur Konstitution des Akuammicins. 42. Mitteilung über Calebassen‐Alkaloide

Physical mapping of Qβ replicase binding sites on Qβ RNA