Anthocyanin biosynthesis pathway

Anthocyanin biosynthesis refers to a **metabolic pathway** rather than a single molecule or receptor. It is responsible for the production of anthocyanins, which are polyphenolic pigments found widely in the plant kingdom. These pigments contribute to red, purple, and blue colors in flowers, fruits, and other tissues[1][5]. The pathway is an extension of general flavonoid metabolism and involves several key enzymes including chalcone synthase (CHS), chalcone isomerase (CHI), flavanone 3-hydroxylase (F3H), dihydroflavonol 4-reductase (DFR), anthocyanidin synthase (ANS), and various glycosyltransferases[1][2][5]. Regulation occurs at both enzymatic and transcriptional levels—most notably by MYB transcription factors as part of MBW complexes with bHLH proteins and WD40 repeat proteins[2][3]. This term does **not refer to a specific therapeutic target** such as an enzyme or receptor but rather describes a complex network of biochemical reactions within plants. Therefore, it should not be classified as a druggable target for human therapeutics. If you are seeking information on individual enzymes or regulatory proteins within this pathway—such as "chalcone synthase," "anthocyanidin synthase," or "MYB transcription factor"—those would be considered molecular targets with their own canonical names and properties[1][2]. > “The well-characterized anthocyanin biosynthetic pathway is a very conserved network in many plant species... The anthocyanin biosynthetic pathway... is an extension of the general flavonoid pathway...”[1] > “Anthocyanins belong to a parent class of molecules called flavonoids synthesized via the phenylpropanoid pathway.”[5]

Other names

Anthocyanin biosynthetic pathwayFlavonoid biosynthesis (branch)Anthocyanin synthesis pathway