D - lecineyog amino acid derivative uas zwm rau pawg ntawm ceg - saw amino acids (BCAAS). Nws cov mis molecular yog c6h13no2, thiab nws muaj lub cev hnyav molecular ntawm 131.17. Nws tshwm sim nyob rau hauv daim ntawv ntawm cov hmoov dawb lossis crystalline khoom. Nws yog soluble hauv dej thiab acetic acid, me ntsis soluble hauv ethanol, tab sis insoluble hauv ether. Nws yog qhov nruab nrab tseem ceeb hauv cov khoom siv hluav taws xob hauv cev thiab cov tshuaj tua yeeb tshuaj, thiab cov tshuaj tiv thaiv cov tshuaj muaj yees, thiab ua kev ntxiv hauv cov zaub mov thiab pub zaub mov noj. Txawm li cas los xij, tib neeg lub cev tsis tuaj yeem tsim thiab nws yuav tsum tau txais los ntawm kev noj haus kom muaj kev noj haus. Vim tias nws tsis tshua pom muaj nyob rau hauv cov khoom noj uas nquag, feem ntau nws tau txais los ntawm cov txheej txheem fermentation.
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 |
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Tshuaj Cov Qauv |
C6h13no2 |
|
Muaj pes tsawg leej |
131.09 |
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Molecular hnyav |
131.18 |
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m/z |
131.09 (100.0%), 132.10 (6.5%) |
|
Kev Ntsuam Xyuas |
C, 54.94; H, 9.99; N, 10.68; O, 24.39 |
- Kev Kho Mob Epilepy: Nws tau pom muaj peev xwm nyob hauv kev qaug dab peg epileptic. Nws siv tau qis ntev - xyoo muaj peev xwm tsis muaj kev cuam tshuam basal synaptic kis, qhia tias nws muaj txiaj ntsig hauv kev tswj hwm mob vwm.
- Peptide synthesis thiab kev hloov tshuaj yeeb: Feem ntau nws siv tau ua ib nrab hauv synthesis ntawm cov tshuaj polypeptide polecules thiab kev hloov kho cov tshuaj uas twb muaj lawm. Lub xub ntiag ntawm d - Daim ntawv amino acid tuaj yeem txhim kho kev ruaj khov, solubility, lossis roj ntsha ua haujlwm ntawm cov tshuaj.
- Cov Cuab Yeej Tshawb Nrhiav: Ua haujlwm ua cov cuab yeej tshawb fawb muaj nuj nqis hauv Biochemistry thiab Molecular Biology Kev Tshawb Nrhiav Biology. Nws tuaj yeem siv los soj ntsuam txoj haujlwm ntawm cov enzymes, receptors, thiab lwm cov biomolecules uas cuam tshuam nrog d- cov amino acids.
- Protein Labeling thiab Kev Ntsuam Xyuas: Tuaj yeem muab tso rau hauv cov protein siv cov qauv biosyynthetic, tso cai rau daim ntawv lo thiab kev xav ntawm cov protein nyob rau hauv cov ciaj sia thiab cov muaj sia.
- Khoom Noj Khoom Haus Ntxiv: Thaum nws tsis yog qhov tseem ceeb rau tib neeg, nws tuaj yeem siv los ua cov khoom noj muaj txiaj ntsig hauv cov khoom noj. Nws yuav muab cov txiaj ntsig ntxiv, xws li txhim kho cov leeg ua haujlwm lossis rov qab, thaum ua ke nrog lwm cov amino acids.
- Tsiaj pub: Nws kuj tseem siv tau los ua kev sib ntxiv hauv cov tsiaj pub rau txhim kho cov zaub mov muaj txiaj ntsig thiab kev ua haujlwm ntawm cov tsiaj txhu thiab tsiaj.
- Synthesis ntawm cov molecules complexules: Ua haujlwm ua qhov tseem ceeb hauv synthesis ntawm cov organic molecules, xws li cov tshuaj sib xyaw ua ke, tshuaj tua kab, thiab tuag.
- Chairal tsev thaiv: Raws li lub tsev chairal thaiv, uas tuaj yeem siv los tsim cov nkauj lwg chairules nrog cov khoom siv kho tshiab tshwj xeeb lossis cov khoom siv roj ntsha.
Cov ntawv thov hauv cov chaw ua haujlwm
- Nws tau pom tias ua kom qhov mob pib hauv cov tsiaj, qhia txog nws lub peev xwm los ua tus sawv cev analgesic. Nws tuaj yeem siv los ua cov tshuaj pab txo cov tshuaj rau laser acupuncture anuplucts anepluctia, muab kev kho mob los ntawm ntau yam mob tshwm sim los ntawm ntau yam mob, rheumatic mob, thiab ntau dhau los.
- Thaum ua ke nrog d - Phenyino acids, nws ua pov thawj ua tau zoo hauv kev kho mob hauv nees, tshwj xeeb yog rau kev mob siab}} kev ua haujlwm. Qhov kev sib xyaw ua ke no muaj kev nyab xeeb, ua tau zoo, thiab tsis - muaj yees.
- Nws pabcuam ua cov khoom noj muaj txiaj ntsig, muab cov amino acids ntxiv rau cov neeg mob uas xav tau. Qhov no tuaj yeem pab cov neeg mob rov muaj zog thiab tawm tsam tus kab mob, tshwj xeeb yog cov uas muaj cov khoom noj uas ua rau cov khoom noj kua txiv.
Nws muaj nyob rau hauv qee cov tshuaj tua kab mob, xws li polymyxin e, uas ua kom pom cov kab mob ant,, tshwj xeeb yog Pseudomonas aeruginosa. Qhov no ua rau nws muaj txiaj ntsig sib xyaw ua ke hauv kev sib ntaus tawm tsam cov kab mob sib kis.
Raws li cov organic acid, uas ua ib lub luag haujlwm tseem ceeb hauv cov synymetricesis ntawm chairal tebchaw. Qhov no yog qhov tshwj xeeb tshaj yog hauv kev lag luam kws tshuaj, qhov twg chiral purity yog qhov tseem ceeb rau kev ua haujlwm roj ntsha thiab kev nyab xeeb tshuaj.
Kev Tshawb Nrhiav thiab Kev Loj Hlob
Cov lus ntawmD - lecinePib xyoo 1819, thaum Yauxej Luis hasutred cais ib cov hmoov dawb los ntawm cov cheese, uas nws pib ua leadine. Nws yog tom qab tau pom tias cov amino acid, leucine, ua tau muaj nyob hauv ob daim ntawv: l} leecine, sib txawv ntawm lawv cov chairality.
Xyoo 1820, cov kws tshawb nrhiav tau rho tawm cov leucine los ntawm cov leeg nqaij, lees paub nws qhov tseem ceeb hauv cov leeg protein synthesis. Lawv tau txheeb xyuas nws ua ib qho ntawm cov amino acids tseem ceeb uas yuav tsum muaj rau kev tswj hwm tib neeg kev noj qab haus huv thiab lub cev muaj sia. Txawm li cas los xij, qhov sib txawv ntawm l - lecine thiab nws tseem tsis tau ua.
Tshaj dhau ntawm cov pua xyoo tom ntej, cov kws tshawb fawb delved ntxaum rau hauv lub chairality ntawm amino acids, pom tau hais tias l - cov ntawv yog qhov tsawg dua. Tshwj xeeb, tau pom tias muaj cov khoom tshwj xeeb thiab cov ntawv thov hauv cov kev tshawb fawb biochemical.
Nyob rau hauv xyoo tsis ntev los no, nws tau mus txog kev saib xyuas tseem ceeb vim nws lub peev xwm hauv Biomedical kev tshawb fawb, cov protein lab, thiab peptide synthesis. Nws chairality tso cai rau cov kev tshawb fawb ntawm cov protein thiab cov enzymes koom nrog kev paub txog chairal lees paub thiab kev ntxub ntxaug. Ib qho ntxiv, nws tau qhia cov lus cog tseg hauv kev tshem tawm epileptic uas muaj kev qaug dab peg thiab lwm yam kev tsis sib haum xeeb neurological.
Hauv kev xaus, kev tshawb pom thiab kev loj hlob ntawmD - lecineTau ua tim khawv rau lub zog ntawm kev tshawb fawb thiab nws lub peev xwm los qhib cov lus zais ntawm biochemistry. Nws cov khoom tshwj xeeb txuas ntxiv mus txhawb cov kev tshawb fawb tshiab thiab kev siv hauv ntau thaj teb.
Kev tshawb fawb ywj siab: tawg nyob rau hauv synthesis thiab application
D - lecine, as the D-isomer of leucine, exhibits distinct metabolic activities from the L-isomer due to its unique chiral structure in the biological system, gradually becoming a research focus in the scientific community. Nyob rau hauv xyoo tsis ntev los no, nrog kev ua kom zoo ntawm synthesis kev ua haujlwm hauv kev ua haujlwm tseem ceeb hauv kev siv tshuaj, d} Kev tshawb fawb nurodise, thiab cov kev tshawb fawb biochemical.
Tawg nyob rau hauv synthesis technology: los ntawm tshuaj txau tshuaj synthesis rau bio - charealysis
Cov kev tshawb fawb ntawm synthesis ntawm d - leecine tau undergone kev hloov pauv los ntawm cov tshuaj lom neeg rau niaj hnub bio- catynyan txoj kev. Cov lus tseem ceeb nyob rau hauv kev daws teeb meem xws li chairal xaiv, tawm los, thiab ib puag ncig ua phooj ywg.
Kev ua kom zoo ntawm cov tshuaj synthesis txoj kev
Cov kev tshawb fawb thaum ntxov kev sib haum xeeb nyob ntawm cov cuab yeej ntawm Rapamic cov ntaub ntawv thiab daws teeb meem kho tshiab. Piv txwv li, siv Isobutyl bromide thiab acetylacetamide li cov ntaub ntawv raw, uas thaum kawg tau txais dl {{} leeceme (ib qho kev sib tw sib xyaw). Tom qab, siv tartaric acid thiab lwm yam chairal reagents los ua cov khoom lag luam enantiomicer, tab sis tus lej no tau sib cais, tab sis cov} isherer li - cov khoom. Nyob rau hauv xyoo tsis ntev los no, chiecists tau ua tiav cov lus schseple raws (xws li chiral phosphalates) lossis cov tshuaj tiv thaiv (xws li tsawg- ib puag ncig). Piv txwv li, kev kawm qee qhov kev kawm npaj siab kho qhov muag tau siv isopentyl cawv raws li cov khoom siv raw, tom qab carboxylation, thiab cov kauj ruam kev tsim kho. Txawm li cas los xij, cov tshuaj tiv thaiv kev hnyav thiab nyuaj rau nplai nce.
Qhov nce ntawm biocatalysis txoj kev
Biocatalysis tau maj mam dhau los ua cov txheej txheem tseem ceeb rau cov synthesis ntawm d {}}}}} tus mob thiab kev xaiv siab.
Microbial Fermentation Txoj Kev:Los ntawm kev ua kom dav dav dav hlau cov kab mob (xws li Escherichia coli, poov xab), ua rau lawv pom tias muaj kua me me (}}}}}}}}}}}}}}}}}}}}} Piv txwv li, pab pawg tshawb fawb qhia cov leucine dehydrogenase cov kev cai (xws li cov kab ke d-lecheric)
Enzyme catalysis txoj kev:Siv D - Amin} kua qaub oxidase lucidize l {{1} {l {luchine yog khaws cia. Qhov tshuaj tiv thaiv no tsis muaj kev tswj hwm ph (7.0-8.0) thiab kub (30-35 degree), zam kev enzyme inactivation. Ib qho kev tshawb fawb siv immobilized enzyme thev naus laus zis, tso cai rau cov enzyme yuav tsum tau siv ntau tshaj 10 zaug, nrog cov txiaj ntsig tseem tshuav saum 85%, txo tus nqi.
Kev tawg hauv biological kev ua: los ntawm kev tshawb fawb yooj yim rau cov ntawv thov kev kho mob
Cov qauv chiral tshwj xeeb ntawm d -}} {{{{{{{{}}} Cov kab mob spressression, thiab cov qog nqaij saws daim teb, ntawm lwm tus.
Antiepilepticic kev ua si
Cov kev ua ub no antiepileptptic ntawm d - leucine yog nws qhov kev tshawb fawb tseem ceeb tshaj plaws. Cov kev tshawb fawb tau pom tias d uas d - leceeb, thiab nws cov nyhuv tiv thaiv epileptic muaj piv rau qhov tseeb ntawm diazepam, tab sis tsis muaj txiaj ntsig zoo. Hauv cov kev sim vitro tau qhia tawm uas d {4 4}}}}}}}} Cov hom phiaj} thiab xws li ion raws lossis receptors). Qhov kev tshawb pom no yog muab cov lus taw qhia rau kev txhim kho cov tshuaj tshiab, thiab tam sim no, kev tshawb fawb tau muab tso ua ke nrog kev nce qib ntawm tus txha caj qaum.
Neuroprotective effect
D - Leucine qhia cov teebmeem kev tiv thaiv hauv Nurodegenerative cov qauv. Piv txwv li, hauv Par Paracinson tus qauv, D- leecine tuaj yeem txo cov lus sib sau ua ke ntawm {} Seruclein thiab Alleviate dopaminergic nuron kev puas tsuaj; Nyob rau hauv Alzheimer tus qauv, nws tuaj yeem txo cov tshuaj lom tsawg ntawm {{4} âroid protein thiab txhim kho kev ua haujlwm zoo nkauj. Cov teebmeem no yuav cuam tshuam nrog nws cov kev cai ntawm autophagy thiab inhibition ntawm oxidative kev ntxhov siab.
Mob qog Hluav Taws Xob
Cov kev tshawb fawb tau pom tias d - leecine tuaj yeem ua rau cov qog qog cell proliferation thiab induce Apoptosis. Piv txwv li, hauv qhov tsis - Cov qauv mob ntsws cancer me me ntawm cov 68.3% thiab cov qog nqaij hlav me me Ntxiv rau, d -} leece kuj tseem tuaj yeem txhim kho cov rhiab ntawm cov tshuaj tsis zoo thiab txo cov tshuaj tiv thaiv.
Kev nthuav dav ntawm daim ntawv thov cov xwm txheej: los ntawm kev kuaj los ntawm kev lag luam
Nrog kev vam meej ntawm synthesis technology thiab cov lus qhia meej ntawm kev ua si ntawm biological, daim ntawv thov cov xwm txheej ntawm d {} luecine yog tas li nthuav.
Kev Tsim Tshuaj Yeeb:Raws li tus yuam sij nruab nrab, nws yog siv nyob rau hauv synthesis ntawm anti {{ntshatau {{{{{{{}} ugilomiculatory siv yeeb tshuaj. Piv txwv li, ib lub tuam txhab kws tshuaj ntsuam muaj qee lub tsev tshuaj tau muab tso rau hauv lub anti-}}}}}}}}}} ay} Egnilepticic pipeline thiab kev npaj nkag mus hauv chaw kuaj mob hauv 2026.
Cov Khoom Noj Khoom Haus:Hauv cov khoom noj khoom noj khoom noj khoom haus, ntxiv rau kev saib xyuas d - leecine tau nce mus rau kev txhawb nqa cov khoom siv protein ntau tshaj 22%.
Kev Tshawb Fawb Biochemical:Raws li cov cuab yeej reagent, nws yog siv los tshawb txog amino acid metabolism, protein synalytic cov kev sib tw, pab cov kws tshawb fawb tob tob nkag siab cov cai ntawm biochemistry.
Yav Tom Ntej Outlook: Cov Kev Nyuaj Siab thiab Cov Caij Npuas
Txawm hais tias kev tshawb fawb ntawm D - Leucine tau ua rau muaj kev kawm tseem ceeb, nws tseem ntsib cov kev cov nyom:
Cov nqi hluavtaws:Txawm hais tias tus qauv biocatalytic yog ib puag ncig phooj ywg, tus nqi kev hloov kho tshiab thiab kev ua kom zoo dua yog tus txo qis thiab yuav tsum tau txo qis ntxiv.
Bioctivity tshuab:Lub hom phiaj tshwj xeeb thiab phiajcim kev sib tw ntawm d - leucine tsis tau meej meej meej. Cov kev tshawb fawb ntxiv yog xav tau.
Cov chaw kho mob:Nws yog qhov tsim nyog yuav tsum tau coj loj - teev cov kev sim mob kho mob kom txheeb xyuas nws txoj kev nyab xeeb thiab kev ua tau zoo, thiab txhawb nqa cov tshuaj lub khw muag khoom.
Nyob rau hauv lub neej yav tom ntej, nrog tus ntoo khaub lig- fusion ntawm cov txheej txheem biology thiab ib puag ncig biology thiab ib puag ncig biology thiab cov synthescent rau tib neeg kev noj qab haus huv thiab kev nce qib ntawm kev ua neej kev kawm.
Cim npe nrov: D - Case CAS "-38-1, Cov chaw tsim khoom, chaw tsim khoom, chaw tsim khoom, yuav khoom, nqe, loj, rau muag