How to extract specific information from json database?

[Alberto]

Here I upload the data that is a subsample of pandas df. I saved it as csv. I tried to run the code (skipping the first line as my df is not saved as a separate file on the hard disk) and got the error:

Error:
AttributeError: 'DataFrame' object has no attribute 'read'

The list of Amino Acids is as follows:

AminoAcid = ['Alaninecp1252', 'Argininecp1252', 'Aspartic acidcp1252', 'Cystinecp1252', 'Glutamic acidcp1252', 'Glycinecp1252', 'Histidinecp1252',  'Hydroxyprolinecp1252',  'Isoleucinecp1252', 'Leucinecp1252', 'Lysinecp1252', 'Methioninecp1252', 'Phenylalaninecp1252', 'Prolinecp1252', 'Serinecp1252', 'Threoninecp1252', 'Tryptophancp1252', 'Tyrosinecp1252', 'Valinecp1252']    

Can you, please take a look at the data and advise me how to proceed.