The sequence "Tyr-Gln-Leu-Glu-Asn-Tyr-Cys(Trt)-Asn" represents a peptide composed of eight amino acids. Tyrosine (Tyr), glutamine (Gln), leucine (Leu), glutamic acid (Glu), asparagine (Asn), and cysteine (Cys) are all standard amino acids found in proteins. The presence of Cys(Trt) indicates that the cysteine residue is modified with a trityl group, which is a protecting group used in peptide synthesis to prevent unwanted side reactions. This peptide sequence is likely part of a larger protein or a bioactive peptide with specific functions, and the trityl-protected cysteine suggests it may be involved in a chemical synthesis process where the protecting group is later removed to allow for further reactions or folding.
The CAS Registry Mumber 52278-87-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,2,2,7 and 8 respectively; the second part has 2 digits, 8 and 7 respectively. Calculate Digit Verification of CAS Registry Number 52278-87: (7*5)+(6*2)+(5*2)+(4*7)+(3*8)+(2*8)+(1*7)=132 132 % 10 = 2 So 52278-87-2 is a valid CAS Registry Number.
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