SYNTHESIS OF ASPARTIC ACID-2,3-C14-N15 AND ITS CONVERSION TO URIC ACID IN THE PIGEON
نویسندگان
چکیده
منابع مشابه
Enzymatic conversion of formylaspartic acid to aspartic acid.
In previous investigations imidazoleacetic acid was shown to be quantitatively converted to formylaspartic acid by a partially purified enzyme preparation obtained from Pseudomonas sp. that requires DPNH’ and oxygen (2, 3). An intermediate in this process was isolated from the incubation mixture with highly purified enzyme preparations and was characterized as N-formimino-L-aspartic acid (4). E...
متن کاملRATE OF EXCRETION OF N15 AFTER FEEDING N15-LABELED l-ASPARTIC ACID IN MAN
1. l-Aspartic acid labeled with N(15) was fed to one human adult and six infants, and the total N and N(15) were determined in the urine from time to time. 2. The N(15) concentration (or isotopic ratio) of urinary N reached its maximum in the adult about 2 hours and in the infants about 4 hours after feeding, then fell off logarithmically. 3. Assuming that the N of aspartic acid readily entered...
متن کاملThe Synthesis of Aspartic Acid
No one of the methods proposed for the synthesis of aspartic acid is entirely satisfactory as a practical procedure. The synthesis, described in a recent paper (1) from this laboratory, has been utilized in preparing 50 to 60 gm. lots of recrystallized aspartic acid but even here the beginning reagents are expensive, the over-all yield is only about 30 per cent of the theoretical, and the proce...
متن کاملConversion of acetate and pyruvate to aspartic acid in yeast.
Recent investigations by Ehrensviird et al. (1) have revealed that the carbon skeleton of aspartic acid in Torula yeast can arise readily from administered acetate. With C1aH&“OOH, the aspartic acid formed during growth contained Cl4 equally distributed between the two carboxyl groups, and most of the C** equally distributed between the 2 central carbon atoms. In the preceding papers (2, 3) the...
متن کاملextraction and characterization of allium irancum plant extract and its application in the green synthesis of silver nano particles and oxidation of thiocarbony1 compounds
سنتز سبز نانوذرات فلزی (nps) درسالهای اخیر توجه بسیارزیادی را به خود جلب کرده است. زیرا این پروتوکل کم هزینه وسازگار با محیط زیست از روش های استاندارد سنتز. در این پایان نامه ما گزارش میکنیم یک روش ساده و سازگار با محیط زیست برای سنتز نانوذرات نقره با استفاده از محلول آبی عصاره گیاه allium iranicum به عنوان یک عامل کاهش دهنده ی طبیعی. نانو ذرات نقره مشخص شد با استفاده از تکنیک های uv-visible، x...
ذخیره 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: 1952
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)55520-4