Atlantic cod cDNA encoding a psychrophilic chymotrypsinogen.

A cDNA clone encoding a psychrophilic cod chymotrypsinogen has been isolated and characterized. The predicted amino acid sequence reveals a preproenzyme of 263 amino acids containing a unique 18 residue signal sequence. Amino acid sequence identity between the cod and mammalian chymotrypsinogens is 64-68%.

Membrane-associated proteins encoded by the nisin gene cluster may function as a receptor for the lantibiotic carnocin UI49.

Carnocin UI49, a lantibiotic produced by Carnobacterium piscicola shows bactericidal activity against many lactic acid bacteria. This paper describes the results of a study on the mode of action of carnocin UI49. It has previously been observed that nisin-producing Lactococcus lactis subsp.

Period prevalence rates of specific mental disorders in an Icelandic cohort.

This paper presents the 1-month, 6-month and 1-year prevalence rates for mental disorders in a random sample of people born in Iceland in 1931 and interviewed at the age of 55-57 years. The diagnoses were made according to DSM-III, on the basis of the National Institute of Mental Health's Diagnostic Interview Schedule (DIS) used by trained lay interviewers. The period prevalence rates were found to be similar to those obtained by other studies using the DIS as a survey instrument.

Isolation and properties of a bacteriocin-producing Carnobacterium piscicola isolated from fish.

A facultative psychrotrophic lactic acid bacterium isolated from fresh fish was identified as Carnobacterium piscicola on the basis of carbohydrate utilization, G + C content and 16S RNA analysis. Its bacteriocin, designated carnocin UI49, is produced during the mid-exponential phase of growth at temperatures between 15 degrees C and 34 degrees C. Carnocin UI49 is active against a large number of closely-related lactic acid bacteria including carnobacteria, lactobacilli, pediococci and lactococci.