Onye nrụpụta nri mgbakwunye nri TianJia L-Tyrosine
l-tyrosine
okwu mmeghe nkenke
Tyrosine (nke a na-akpọ Tyr ma ọ bụ Y) ma ọ bụ 4-hydroxyphenylalanine bụ otu n'ime amino acid 22 nke mkpụrụ ndụ na-eji emepụta protein.Enwere ike iji ya mepụta protein na sel, yana codons UAC na UAU.Ọ bụ amino acid na-adịghị mkpa nke nwere akụkụ dị iche iche nke pola ma nwee ike ịmepụta ya site na ahụ mmadụ.Okwu 'tyrosine' sitere na Greek tyros, nke putara cheese.Na mmalite narị afọ nke 19, onye German chemist Eustus von Libich chọtara ya na cheese casein, mgbe ejiri ya dị ka otu ọrụ ma ọ bụ akụkụ akụkụ, a na-akpọ ya tyrosine.
ọrụ
Na mgbakwunye na ịbụ protein amino acid, tyrosine na-arụ ọrụ pụrụ iche na ntụgharị mgbaàmà na protein site na ịdabere na otu ọrụ phenolic.Ọrụ ya dị ka onye na-anabata ndị otu phosphate na-ebufe site na protein kinases (nke a na-akpọ tyrosine kinase receptors), ebe phosphorylation nke otu hydroxyl na-agbanwe ọrụ nke protein ezubere iche.
Tyrosine na-arụkwa ọrụ dị mkpa na photosynthesis, na-eje ozi dị ka onye na-eweta electron na mbelata mmeghachi omume nke chlorophyll oxidized na chloroplasts (Photosystem II), mwepu nke otu phenolic OH, na n'ikpeazụ mbelata site na ụyọkọ manganese anọ dị na Photosystem II.
Isi mmalite nri
Enwere ike ịmepụta Tyrosine site na phenylalanine n'ime ahụ ma nwee ike ịchọta ya n'ọtụtụ nri protein dị elu dị ka ọkụkọ, toki, azụ, mmiri ara ehi, yogọt, cheese, cheese, ahụekere, almọnd, ugu osisi, sesame, soybeans, lima beans, avocados, na banana.
L-tyrosine bụ amino acid na-adịghị mkpa na otu n'ime ihe ndị bụ isi na methionine metabolism ụzọ.Ọ dị ebe niile na ntule ma na-arụ ọrụ dị mkpa n'ọtụtụ usoro ndu.
L-tyrosine bụ akụkụ nke protein ma na-ekere òkè na njikọ nke protein.Ọ bụkwa ihe mmalite nke ihe dị iche iche nke bioactive, gụnyere catecholamine neurotransmitters dị ka dopamine, norepinephrine, na adrenaline, yana hormones thyroid na melanin.
Tụkwasị na nke ahụ, L-tyrosine na-etinyekwa aka na njikọ nke ụmụ irighiri ihe ndị dị mkpa site na usoro nke enzymes dị n'ime ahụ, dị ka tyrosine kinase na tyrosine hydroxylase, bụ ndị na-etinye aka na ụzọ akara kinase na nhazi usoro ọmụmụ.
Enwere ike nweta oriri nke L-tyrosine site na nri, yana nri dị ukwuu gụnyere mkpụrụ, mkpụrụ, anụ, azụ, na ngwaahịa mmiri ara ehi.Na mgbakwunye, L-tyrosine nwekwara ike ịtụgharị site na amino acid ọzọ, phenylalanine, site na ụzọ njikọ tyrosine n'ime ahụ.
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