Z-Gly-D-Ala-Ser-Pro-OH is a synthetic peptide composed of five amino acids: Z-protected glycine (Z-Gly), D-alanine (D-Ala), serine (Ser), and proline (Pro). This sequence is of particular interest in the field of medicinal chemistry due to its structural similarity to the N-terminus of certain penicillin-binding proteins, which are essential for bacterial cell wall synthesis. The presence of D-alanine, an unnatural amino acid, is noteworthy as it contributes to the peptide's resistance to enzymatic degradation, potentially enhancing its stability and effectiveness in antimicrobial applications. The Z-group (benzyl group) is a protecting group that shields the glycine's amino group during synthesis, ensuring that the peptide链 maintains its integrity until the desired point of deprotection. This specific sequence is often studied for its potential role in the development of new antibiotics, especially in the context of antibiotic resistance.
The CAS Registry Mumber 73538-49-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,5,3 and 8 respectively; the second part has 2 digits, 4 and 9 respectively. Calculate Digit Verification of CAS Registry Number 73538-49: (7*7)+(6*3)+(5*5)+(4*3)+(3*8)+(2*4)+(1*9)=145 145 % 10 = 5 So 73538-49-5 is a valid CAS Registry Number.