in contrast , when the mr approximately equal to 62,000 peptide containing the beta 1-adrenergic receptor-binding subunit derived from the rat heart is proteolyzed simultaneously with the mr approximately equal to 62,000 peptide containing the beta 2-adrenergic receptors from either lung or erythrocyte , the peptide fragments generated are distinctly different .
C0030956
peptide
C0030935
peptide fragments