The sequence "Trp-Ala-Gly-Gly-Phe-Ala-Ser-Gly-Glu" represents a peptide chain composed of nine amino acids. This specific arrangement of amino acids is known as a nonapeptide. Each amino acid abbreviation corresponds to a particular molecule: Trp for tryptophan, Ala for alanine, Gly for glycine, Phe for phenylalanine, Ser for serine, and Glu for glutamic acid. The sequence is held together by peptide bonds formed between the carboxyl group of one amino acid and the amino group of the next, creating a linear structure. This particular peptide may have specific biological functions or properties, depending on its role within a larger protein or its interaction with other molecules. The sequence's significance can vary widely, from being a part of a hormone to serving as an antigen or playing a role in cellular signaling.
The CAS Registry Mumber 77756-33-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,7,5 and 6 respectively; the second part has 2 digits, 3 and 3 respectively. Calculate Digit Verification of CAS Registry Number 77756-33: (7*7)+(6*7)+(5*7)+(4*5)+(3*6)+(2*3)+(1*3)=173 173 % 10 = 3 So 77756-33-3 is a valid CAS Registry Number.