Water content, adenylate kinase, and mitochondria drive adenylate balance in dehydrating and imbibing seeds
نویسندگان
چکیده
منابع مشابه
Conformational Transitions in Adenylate Kinase
Large conformational changes in the LID and NMP domains of adenylate kinase (AKE) are known to be key to ligand binding and catalysis, yet the order of binding events anddomainmotion is not well understood. Combining the multiple available structures for AKEwith the energy landscape theory for protein folding, a theoretical model was developed for allostery, order of binding events, and efficie...
متن کاملContent of adenosine phosphates and adenylate energy charge in germinating ponderosa pine seeds.
An average of 540 picomoles of total adenosine phosphates was found in the embryo of mature seeds of ponderosa pine (Pinus ponderosa Laws.) and 1140 picomoles in the gametophyte. Adenylate energy charges were 0.44 and 0.26, respectively. After stratification, total adenosine phosphates increased 7-fold and 6-fold in embryo and gametophyte, respectively, and energy charges rose to 0.85 and 0.75....
متن کاملAdenylate energy pool and energy charge in maturing rape seeds.
A study of energy state and chemical composition of pod walls and seeds of maturing rape (Brassica napus L.) was conducted on two varieties, Victor and Gorczanski. Total adenosine phosphates, ATP, and adenylate energy charge increased with increasing cell number and cellular synthesis during the early stages, remained high at maximum dry weight accumulation and maximum substrate influx time, an...
متن کاملUrinary adenylate kinase and urinary tract infections.
Positive correlations were found among the appearance of adenylate kinase activity in the urine and the existence of bacteriuria, the Fairley test, and other criteria of urinary infection. Since the adenylate kinase isozymes of human tissues are organ specific and can be distinguished from one another, the appearance of adenylate kinase isozymes in urine was used in this study to identify the e...
متن کاملMembrane potential, adenylate levels and Mg2+ are interconnected via adenylate kinase equilibrium in plant cells.
Concentrations of adenylate species and free magnesium (Mg(2+)) within cells are mediated by the equilibrium governed by adenylate kinase (AK), the enzyme abundant in plants in chloroplast stroma and intermembrane spaces of chloroplasts and mitochondria. Ratios of free and Mg-bound adenylates (linked to the values of [Mg(2+)] established under AK equilibrium) can be rationalized in terms of the...
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ژورنال
عنوان ژورنال: Journal of Experimental Botany
سال: 2017
ISSN: 0022-0957,1460-2431
DOI: 10.1093/jxb/erx182