Dietary supplement
According to US & Canadian Dietary Reference Intake guidelines, the protein Recommended Dietary Allowance (RDA) for adults is based on 0.8 grams protein per kilogram body weight. The recommendation is for sedentary and lightly active people. Scientific reviews can conclude that a high protein diet, when combined with exercise, will increase muscle mass and strength, or conclude the opposite. The International Olympic Committee recommends protein intake targets for both strength and endurance athletes at about 1.2-1.8 g/kg body mass per day. One review proposed a maximum daily protein intake of approximately 25% of energy requirements, i.e., approximately 2.0 to 2.5 g/kg.
SSMEM1
In humans, serine-rich single pass membrane protein 1 is 244 amino acids long with a transmembrane domain region spanning amino acids 35-55. This protein has a domain of unknown function (DUF4636) that spans almost all of the protein (amino acids 1-243). DUF4636 belongs to pfam15468 which is a part of the superfamily cl21285 that is found in eukaryotes and typically 196 to 244 amino acids long. The human protein has a molecular weight of 28036 Da and an isoelectric point of 7.64.