L-Cysteine CAS: 52-90-4 98-101% budada crystalline cad
Lambarka buugaagta | XD90321 |
Magaca Alaabta | L-Cysteine |
CAS | 52-90-4 |
Qaanuunka molecular | HSCH2CH(NH2)CO2H |
Miisaanka Molecular | 121.16 |
Faahfaahinta Kaydinta | 2 ilaa 8 °C |
Xeerka Tarifka La Iswaafajiyay | 29309013 |
Tilmaamaha Alaabta
Muuqashada | Budada crystalline cad |
Qiimayn | 98.0% - 101.0% |
Wareegid gaar ah | +8.3°~ +9.5° |
pH | 4.5 ~ 5.5 |
SO4 | 0.03% ugu badnaan |
Fe | ugu badnaan 10ppm |
Khasaare xagga qallajinta | 0.5% ugu badnaan |
Hadhaaga dabka | 0.1% ugu badnaan |
NH4 | 0.02% ugu badnaan |
AS2O3 | ugu badnaan 1ppm |
Cl | ≤0.2% |
Biraha culus (sida Pb) | ugu badnaan 10ppm |
Xaalada Xalka | 95.0% min |
Kooxaha xadiidka iyo baaruuddu waxay u shaqeeyaan sidii isku-xidhayaal borotiinno kala duwan leh, oo leh doorar kelliyeed oo kala duwan oo ku jira unugyada prokaryotic iyo eukaryotic labadaba.Mashiinada la go'aamiyay waxay ururiyaan kutlada waxayna geeyaan unugyaraha aqbala ee ugu dambeeya si adag loo habeeyey.Bakteeriyada Prototypical Gram-negative Bakteeriyada Escherichia coli, labada nidaam ee isku xidhka kooxda xadiidka iyo baaruudda ee jira, kutlada baaruudda (ISC) iyo sulfur assimilation (SUF), ayaa si dhow isugu xidhan.Xakamaynta dariiqa ISC, IscR, waa qodobka qoraalka ee nooca helix-rogid-helix kaas oo isku dubaridi kara kooxda [2Fe-2S].Xaaladaha dib-u-habaynta iyo helitaanka birta ama baaruuddu waxay wax ka beddelaysaa heerka ligation ee kutlada IscR, taas oo iyaduna go'aamisa beddelka habka DNA-ga gaarka ah ee maamulaha: kutlada-ka kooban IscR waxay ku xidhmi kartaa qoyska dhiirrigeliyeyaasha hiddo-wadaha (nooca-1) halka qaabka clusterless wuxuu aqoonsanayaa kaliya koox labaad oo taxane ah (nooca-2).Si kastaba ha ahaatee, kooxda xadiidka-sulfur biogenesis ee bakteeriyada Gram-positive si fiican looguma sifoobo, inta badan noolaha kooxdani waxay soo bandhigaan mid ka mid ah hababka isku dhafka ah ee kooxda-sulfur.Waxaa xusid mudan in biraha kala duwanaanshiyaha Gram-positive-ga gaarka ah ee yareeya bakteeriyada Thermincola potens, halkaas oo hiddo-wadaha labada hab lagu aqoonsan karo, in kasta oo ay leeyihiin urur ka soocaya bakteeriyada Gram-negative.Waxaan soo bandhignay in mid ka mid ah hidde-sidayaashan uu qeexayo iscR homolog-ga shaqeynaya waxayna u badan tahay inay ku lug leedahay nidaaminta biogenesis-ka kooxda-sulfur biogenesis ee T. potens.Qaab dhismeedka iyo sifada biochemical ee T. potens iyo E. coli IscR ayaa daaha ka qaaday naqshad la yaab leh oo la mid ah waxayna daaha ka qaadeen ilaalinta lama filaanka ah ee habka gaarka ah ee habka takoorka isku xigxiga ee astaanta u ah kooxdan gaarka ah ee maamulayaasha qoraalka.