ABCR abbreviation for ATP-binding cassette transporter retina; other name: rim protein. A protein found in the disc membrane of the outer segment of photoreceptor cells of the retina. It consists of 2273 amino acids, and is presumed to function in the transport of retinoids. Mutations in the ABCR gene, at 1p21-p23, are associated with Stargardt

A23187 or calcimycin a toxic and weakly antibiotic substance isolated from cultures of Streptomyces chartreusensis. It is a lipophilic 523 Da monocarboxylic acid of complex structure, two molecules of which form stable lipid-soluble complexes at pH 7.4 with one atom of certain divalent metal cations, especially Mn2+, Ca2+, and Mg2+; monovalent cations are bound only

ملخص الفصل الرابع عشر :الحموض و القواعد من كتاب الكيمياء للعالم زومدال Chapter 14 notes:Acids and Bases, Chemistry Zumdahl إذا كنت تبحث عن باقي الفصول فالرجاء الضغط على الروابط الآتية : الفصل الأول : ملخص الفصل الأول :أساسيات الكيمياء للعالم زومدال Chapter 1 chemistry foundation Notes Zumdahl AP الفصل الثاني  :ملخص الفصل الثاني :الذرات و الجزيئات