Nortestosterone chemical structure

Chemical Name 170-hydroxyestr4-en-3-one 3-phenylpropionate Common Name 19-nortestosterone -phenylpropionate Structural Formula See Nandrolone Decanoate for the steroid structure Chemical Abstracts Registry No. 62-90-8 434-22-0 (Base)... 

Therapeutic Function Anabolic Chemical Name 17 -[(1-oxodecvl)oxy] estr-4-en-3-one Common Name 19-nortestosterone decanoate norandrostenolone decanoate Structural Formula ... 

During the period of time when the nature of the 19-nortestosterone acetate-dependent photoinactivation was under investigation, a new bacterial steroid isomerase was obtained from extracts of Pseudomonas putida (Biotype B) in nearly homogeneous form and some of its physical and enzymatic properties were characterized (64, 65, 66). The putida isomerase is similar in its molecular weight and quaternary structure to the testosteroni isomerase. Chemically, the most striking difference between the two isomerases is the presence of four residues of cysteine per polypeptide chain of the putida isomerase whereas no cysteine or cystine is present in the testosteroni isomerase. N-Terminal sequence analysis of the putida isomerase demonstrated substantial sequence homology between the two enzymes. 

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