I-TianJia Yokungeza Ukudla Umkhiqizi u-L-Tyrosine

Umkhiqizi Wokungezelela Wokudla we-TianJia u-L-Tyrosine Isithombe Esifakiwe

Incazelo emfushane:

Inombolo ye-CAS:60-18-4

Ukupakishwa:25kg/Isikhwama

Inani elincane le-oda:1000kgs

Ukuminyana1.34

Iphoyinti lokuncibilika290℃

Iphuzu elibilayo314.29℃(isilinganiso esinzima)

Ukuzungezisa okuqondile-11.65 ° (C=5, DIL HCL/H2O 50/50)

Iphoyinti le-Flash176 ℃

Ukuncibilika kwamanzi0.45 g/L (25℃)

UkuncibilikaAyincibiliki emanzini (0.04%, 25℃), ayincibiliki ku-ethanol engena-hydrous, i-ether, ne-acetone, futhi inyibilika kuma-asidi axubile noma izisekelo.

Inkomba ye-refractive-12 ° (C=5, 1mol/LH

I-acidity coefficient2.2 (ku-25 ℃)

PH inani6.5 (0.1g/l, H2O)

Thumela i-imeyili kithi

Imininingwane Yomkhiqizo

Omaka bomkhiqizo

I-l-tyrosine

isingeniso esifushane

I-Tyrosine (efushanisiwe ngokuthi i-Tyr noma i-Y) noma i-4-hydroxyphenylalanine ingenye yama-amino acid angu-22 asetshenziswa amaseli ukuze ahlanganise amaprotheni.Ingasetshenziselwa ukuhlanganisa amaprotheni kumaseli, nama-codons UAC kanye ne-UAU.Kuyi-amino acid engabalulekile equkethe amaqembu aseceleni kwe-polar futhi ingahlanganiswa ngumzimba womuntu.Igama elithi 'tyrosine' livela kwelesiGreki elithi tyros, okusho ushizi.Ekuqaleni kwekhulu le-19, yatholwa okokuqala ngusokhemisi waseJalimane u-Eustus von Libich kushizi we-casein, futhi lapho isetshenziswa njengeqembu elisebenzayo noma elihlangothini, libizwa nge-tyrosine.

umsebenzi

Ngaphezu kokuba i-protein amino acid, i-tyrosine idlala indima ekhethekile ekudluliseleni isignali kumaprotheni ngokuthembela emaqenjini asebenzayo e-phenolic.Umsebenzi wayo unjengesamukeli samaqembu e-phosphate adluliswa ama-protein kinases (okuthiwa i-tyrosine kinase receptors), kuyilapho i-phosphorylation yamaqembu e-hydroxyl ishintsha umsebenzi wephrotheni eqondiwe.

I-Tyrosine futhi idlala indima ebalulekile ku-photosynthesis, isebenza njengomhlinzeki we-electron ekunciphiseni ukusabela kwe-chlorophyll ene-oxidized kuma-chloroplasts (Photosystem II), ukuchithwa kwamaqembu e-phenolic OH, futhi ekugcineni kwehliswe ngamaqoqo amane ayinhloko e-manganese ku-Photosystem II.

Imithombo yokudla

I-Tyrosine ingahlanganiswa kusuka ku-phenylalanine emzimbeni futhi ingatholakala ekudleni okuningi kwamaprotheni aphezulu njengenkukhu, i-turkey, inhlanzi, ubisi, iyogathi, ushizi, ushizi, amantongomane, ama-alimondi, imbewu yethanga, isesame, ubhontshisi wesoya, ubhontshisi bama-lima, ukwatapheya, kanye nobhanana.

I-L-tyrosine iyi-amino acid engabalulekile futhi ingenye yezinto ezibalulekile endleleni ye-methionine metabolism.Ikhona kakhulu ezintweni eziphilayo futhi idlala indima ebalulekile ezinqubweni eziningi zezinto eziphilayo.

I-L-tyrosine iyingxenye yamaprotheni futhi ibamba iqhaza ohlelweni lokuhlanganisa amaprotheni.Kubuye kube ngumanduleli wezinto ezihlukahlukene ze-bioactive, kuhlanganise ne-catecholamine neurotransmitters njenge-dopamine, i-norepinephrine, ne-adrenaline, kanye namahomoni egilo kanye ne-melanin.

Ngaphezu kwalokho, i-L-tyrosine iphinde ihileleke ekuhlanganiseni kwama-molecule abalulekile ezinto eziphilayo ngokusebenzisa uchungechunge lwama-enzyme emzimbeni, njenge-tyrosine kinase ne-tyrosine hydroxylase, ehilelekile emigwaqweni yokubonisa i-kinase kanye nokulawulwa komzimba.

Ukuthathwa kwe-L-tyrosine kungatholakala ngokudla, ngemithombo yokudla eningi ehlanganisa amantongomane, imbewu, inyama, inhlanzi, nemikhiqizo yobisi.Ngaphezu kwalokho, i-L-tyrosine ingabuye iguqulwe isuka kwenye i-amino acid, i-phenylalanine, ngokusebenzisa indlela ye-tyrosine synthesis emzimbeni.

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