The preparation of homogeneous monkey and human pituitary growth hormones.

نویسنده

  • W D Peckham
چکیده

Simian pituitary growth hormone was prepared in homogeneous form by sequential application of exclusion chromatography on Sephadex G-100, ion exchange chromatography on diethylaminoethyl Sephadex with a single eluent, and density gradient column electrophoresis. DEAESephadex chromatography with a single eluent was also used to separate two biologically active components of human pituitary growth hormone. All three primate growth hormone preparations possessed similar activity in the tibia test. The homogeneity of these preparations was shown by disc electrophoresis on polyacrylamide gel under both acidic and alkaline conditions and also by analytical exclusion chromatography on Sephadex G-100. The latter technique also indicated a close similarity in molecular size of all three hormonal preparations.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

The C-terminal amino acid sequence of growth hormones from human, monkey, whale, and sheep pituitary glands.

In another communication we have reported partial Nterminal amino acid sequences for growth hormones (somatotropins) of several species (1) ; these studies have indicated that whale, monkey, and human growth hormones are singlechain polypeptides at their N-terminus. To seek further evidence that these proteins are made up of single polypeptide chains, as well as to make additional comparisons w...

متن کامل

N-terminal amino acid analysis of growth hormones from human, monkey, whale, and beef pituitary glands.

The isolation of growth hormone (somatotropin) from human, monkey, and whale pituitary glands has recently been reported (l-3). Preliminary studies on the hormone proteins from these species have suggested that phenylalanine is their sole N-terminal amino acid residue (l-3), in contrast to the two N-terminal residues, alanine and phenylalanine, which have been reported for the bovine somatotrop...

متن کامل

Tissue-specific expression of squirrel monkey chorionic gonadotropin.

Pituitary gonadotropins LH and FSH play central roles in reproductive function. In Old World primates, LH stimulates ovulation in females and testosterone production in males. Recent studies have found that squirrel monkeys and other New World primates lack expression of LH in the pituitary. Instead, chorionic gonadotropin (CG), which is normally only expressed in the placenta of Old World prim...

متن کامل

An investigation on body weights, blood glucose levels and pituitary-gonadal axis hormones in diabetic and metformin-treated diabetic female rats

Diabetes is a metabolic disorder which affects whole body systems including reproductive system. Diabetes is also a contributing factor to infertility. Metformin is one of the most common drugs to control hyperglycemia. In this study, 36 adult Sprague-Dawley female rats (170-210 g) were divided into 3 groups (control, diabetic and diabetic-treated by metformin). In second and third groups, diab...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • The Journal of biological chemistry

دوره 242 2  شماره 

صفحات  -

تاریخ انتشار 1967