The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The genes for the rod and rod-like green cone opsins in two avian species, the budgerigar, Melopsittacus undulatus, and the mallard duck, Anas platyrhynchus, are identified on the basis of amino acid identity with the equivalent chicken sequences and their placement into a single phylogenetic clade with the rod and rod-like green cone opsin genes from other vertebrate species. Since the two bird...
We have previously shown that large expansions of CAG (CTG) triplets are associated both with schizophrenia itself and with an early age-at-onset of the disease. However, the repeat expansion detection (RED) method used did not provide a chromosomal location for the expanded region(s) (Morris et al., 1995). In a further study of our schizophrenic and control patients, we have now examined the length...
Guanylate kinase (GK) catalyses the conversion of GMP to GTP as part of the cGMP cycle. In mammalian phototransduction, this cycle is essential for the regeneration of cGMP following its hydrolysis by phosphodiesterase. Mutations in different parts of this signalling cascade lead to retinal degeneration in humans. Protein studies have localized a locus for GK to a region of human chromosome 1 that...
A study of the sequences of the rhodopsin-encoding genes (Rh) in eight fish species from two of the major subdivisions of the teleosts reveals that no introns are present in the coding region. This contrasts with the opsin-encoding genes of all other vertebrates where either four or five introns are invariably found. Phylogenetic analysis shows that this intronless teleost Rh is homologous to the...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.