Polynucleotide phosphorylase from Streptomyces aureofaciens: purification and properties

Gender differentials in the choice of in-patient healthcare services among the older adults in India: A cross-sectional study

India is presently undergoing a rapid demographic transition and experiencing a gradual increase in an ageing population. As a result, the households were continuously exposed to catastrophic economic impacts, ultimately influencing the healthcare utilisation of older people. The study examined the gender differentials in the choice of in-patient private and public hospitalisation among Indian elderly using Andersen's Health Behaviour Model. The database was acquired from the nationally representative cross-sectional survey (NSSO, 2017-18). Bivariate chi-square and binomial logistic regression techniques were used to fulfill the objective. In addition, the poor-rich ratio and concentration index was used to understand the inherent socioeconomic inequalities in healthcare preferences. The findings suggest that aged men were 27 percent more prone to avail private healthcare facilities than aged women. Further, older adults, who are married, belong to the upper caste, have higher education and gone through surgery, and primarily reside in an affluent society were more likely to prefer private in-patient hospitalisation. It represents negligence of older women in access to better healthcare who had financial strain and economically dependent. The study can be used to reframe existing public health policies and programs, particularly focusing on the older women, to avail cost-effective treatment.

DNA-dependent RNA polymerase from the chlorotetracycline producing strain of Streptomyces aureofaciens

RNA polymerase from Streptomyces aureofaciens has been purified by polyethyleneimine precipitation followed by chromatography first on DEAE-cellulose, then heparin-Sepharose and finally on an aminooxybutylcellulose matrix containing immobilised S. aureofaciens DNA. The enzyme is composed of three subunits of approximately 145, 136 and 44 kDa that are in a ratio of approx. 1:1:2. In many isolations two additional subunits of approximately 68 and 39 kDa and some minor protein bands of approximately 110, 85 and 61 kDa are also present. Thus, the structure of this enzyme is very similar to other bacterial RNA polymerases, exhibiting an alpha 2 beta beta' core and the additional proteins rho and sigma.

Specific endonucleases in Streptomyces aureofaciens

Two strains of Streptomyces aureofaciens were found to contain restriction endodeoxynucleases; S. aureofaciens IKA 18/4 contains Sau I which splits lambda DNA into three fragments, S. aureofaciens IKA 22201 Sau Ii which splits lambda DNA into more than 15 fragments.