glutathione s transferase crystal structure RCSB PDB RCSB PDB - 2C3N: Human
Description
This is the number one reason injection site rotation matters

Ferroptosis, characterized by GPX4 inhibition and iron-dependent lipid peroxidation, occurs in iron-rich cells such as glioblastomas and neurons, and is often triggered by decreased SLC7A11 expression or cystine depletion

Amide I and II bands (1,650 cm and 1,550 cm) shift upon copper binding, indicating interaction with peptide carbonyl and amine groups

EJ Erica J

Grundy SM, Brewer HB Jr, Cleeman JI, Smith SC Jr, Lenfant C
