d cystine

D-Cystine, the D-enantiomer of L-Cystine, functions as an inhibitor of L-aspartate-β-semialdehyde dehydrogenase (ASADH) derived from Escherichia coli.

L-Cysteine S-sulfate (S-Sulfo-L-cysteine) is an effective N-methyl-d-aspartate (NMDA) glutamatergic receptors agonist. L-Cysteine S-sulfate is the substrate for cystine lyase [1].

Loxosceles Bergeri venom, derived from Loxosceles Bergeri, comprises a sophisticated blend of toxins featuring proteins, glycoproteins, and low molecular mass peptides. Identified protein classes within this venom include astacin-like metalloprotease, insecticidal peptides of low molecular mass, inhibitor cystine knot peptides (ICK), and phospholipase-D, with the enzyme sphingomyelinase D playing a pivotal role in necrosis development [1].