Structure of a mammalian hormone oxtocin

Draw a positive repressible with a high concentration
August 4, 2017
What is the correct structure of the native protein
August 4, 2017
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Structure of a mammalian hormone oxtocin

Question: The structure of a mammalian hormone oxtocin, a nine-amino acid polypeptide as follows:  cys-tur-ile-glan-asn-cys-pro-leu-gly. At the carboxyl end, the -OH is replaced by an amino group.  

[1] Where is the disulfide bridge?
[2] Draw the hormone and show all the side chains.  (I think leu is one of them).

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