QUANTITATIVE STUDIES UPON SOME BLOOD CONSTITUENTS OF HELIX POMATIA

Studies on the specificity of choline esterase in Helix pomatia.

The Mucoproteins of the Snails, Helix Aspersa and Helix Pomatia

The problem of the structure of complex proteins containing carbohydrates in their molecule is still a subject of discussion. The fundamental questions which have been debated during the last decades and which have been the subject of many controversies are concerned with the nature of the carbohydrate group present in the molecule of these substances. Since the discovery of mucoproteins or muc...

[Small-angle x-ray-scattering studies on the substructure of Helix pomatia hemocyanin].

Hemocyanin of the snail helix pomatia was studied by small angle X-ray scattering in 0.15 M phosphate buffer pH 6. The outer portion of the scattering curve showed minima, which indicated that the hemocyanin molecule is composed of a large number of identical (or very similar) nearly spherical subunits. From the position of the minima the radius of gyration R u of the subunit was calculated to ...

Partial purification and some properties of a cellulase from Helix pomatia.

The properties of cellulases from Helix pomatia have been studied by many workers, including Seilliere (1906), Karrer, Schubert & Wehrli (1925), Karrer & Schubert (1926, 1928) and de Stevens (1955). Cellulolytic enzymes have also been found in other invertebrates, such as Teredo (Greenfield, 1955) and Ctenolep8ima lineata (Lasker & Giese, 1956), and in a wide range ofmicro-organisms which inclu...

An Electron Microscope Study of the Cells Lining the Small Blood Vessels of Helix pomatia Linn

identified between neighbouring Schwann cells at nodes of Ranvier (Robertson, 1957; Uzman and Nogueira-Graf, 1957), in the latter situation there is no multiplicity of cytoplasmic layers, as is the case in the former. Since the cells of the inner core bear some resemblance to both fibrocytes and Schwann cells, i t might be supposed that they would best be provisionally classified as "neural fib...