البحث
إكتشاف أشخاص جدد وإنشاء اتصالات جديدة وصداقات جديدة
- أخر الأخبار
- استكشف
- الصفحات
- المجموعات
- المناسبات
- راقب
لا توجد بيانات للعرض
an acid formed as an intermediate product of the metabolism of tyrosine and phenylalanine
a crystalline amino acid that occurs in many proteins
a crystalline amino acid that occurs in many proteins
a crystalline amino acid that occurs in many proteins
a crystalline amino acid that occurs in many proteins