THE UNIENZYMATIC NATURE OF YEAST POLYGALACTURONASE
نویسندگان
چکیده
منابع مشابه
The unienzymatic nature of yeast polygalacturonase.
Yeast polygalacturonase (YPG) catalyzes the hydrolysis of pectic acid to a mixture of digalacturonic and galacturonic acids (1). The reaction course consists of (a) an initial rapid attack on the linear chain by a random mechanism until about 25 per cent hydrolysis has occurred, (b) a slower phase during which an additional 25 per cent of the available bonds are broken, and (c) an extremely slo...
متن کاملHydrolysis of the oligogalacturonides and pectic acid by yeast polygalacturonase.
Yeast polygalacturonase (YPG) is a constitutive type enzyme, produced exocellularly and free of pectinesterase by Saccharomyces jragilis (1). It has an optimal pH of 4.4 and appears to be specific in its activity towards polygalacturonides (2). YPG differs from preparations of commercial fungus polygalacturonase in that it cannot carry out a complete breakdown of pectic acid to galacturonic aci...
متن کاملNature of the G1 phase of the yeast Saccharomyces cerevisiae.
Under conditions that protract the S phase for Saccharomyces cerevisiae without affecting steady-state rates of cell growth or proliferation, there were striking decreases in the length of the G1 period. These decreases were localized in the period between mitosis and the start event that initiates a new cell cycle. We conclude that this major fraction of the G1 period has no functional role in...
متن کاملThe Nature and Structure of Ethical Papers
Nowadays, because of their innovative and scholarly nature, the scientific-research articles are taken into account as the best and sometimes the only judging criterion of their authors and scientific community. Therefore, all those who work in the academic fields and are working as A.M. and doctorate students or teachers are required to test their proficiency and to show that they are qualifie...
متن کاملThe nature of public-private partnership
To explaining the public-private partnership matter, we have to search about the answer of this questions: public-private partnership Is subject of what kind of legal contracts? private law? Administrate law? And what kind of Outstanding feature make it difference from other contracts.in order to finding the answer we Explained the concept of partnership, the definition of governmental contract...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1956
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)65850-8