Patlisiso ea AnaSpec Membrane-Peptide: Litlhaloso tsa ho Lokisetsa Kopo

Patlisiso ea AnaSpec Membrane-Peptide: Litlhaloso tsa ho Lokisetsa Kopo

Phapang Pakeng Tsa Setifikeiti sa Bohloeki le Boikemisetso ba Teko

Peptide e tloaelehileng ea sehlopha sa lipatlisiso CoA e tlaleha lintlha tse tharo: tatelano, HPLC bohloeki (hangata e hlahisoa joalo ka peresente ea sebaka se phahameng ho 215 nm kapa 220 nm), le netefatso ea boitsebiso ba spectrometry. Bakeng sa li-peptide tse ngata tse qhibilihang tse sebelisoang litekong tse tlamang, ELISA-based quantification, kapa pharmacology ea receptor, likarolo tsena tse tharo li lekane ka 'nete. Peptide e qhibiliha ka har'a buffer e nang le metsi, e sebetsa joalo ka monomer maemong a tlhahlobo, mme e hlahisa sesupo se hlwekileng.

Patlisiso ea AnaSpec Membrane-Peptide: Litlhaloso tsa ho Lokisetsa Kopo

Li-peptide tsa Membrane ha li arolelane motheo ona. Li hlalosoa ka mokhoa o hlophisitsoeng ke sebopeho se tšoanang sa hydrophobic se li lumellang hore li arohane le ho tšela lipid bilayers.. Sebopeho seo se etsa hore ho be thata ho qhala, e tloaetse ho bokellana libakeng tse nang le metsi, le ho nahanela maemo a tsosoloso ka litsela tseo nomoro e le 'ngoe ea HPLC e ke keng ea e hapa. Tlaleho ea peptide 95% bohloeki ka RP-HPLC bo ka fihla bencheng ea hau e le lyophilized solid e etsang gel ho DMSO ho fapana le tharollo., e potlakisa ka mor'a ho hlapolloa ho buffer ea fisioloji, mme e hlahisa lipalo tsa cytotoxicity tse hlahisoang ke likakaretso ho fapana le tatellano e reriloeng.

Joalo ka 2013 Moralo oa tlhahlobo ea Transmembrane Peptides ho Mekhoa ho Biology ea Limolek'hule (PubMed: 23975779) e hlalosa ka botlalo, esita le tatellano ea TM e entsoeng hantle e tlameha ho loantšana le ho kopanya, tharollo e mpe ea HPLC ka lebaka la ho putlama ha hydrophobic ka mekhahlelo e emeng, le ho hlōleha ho tsosolosa tlas'a maemo a tloaelehileng a metsi. Tsena ha se mefokolo ea boleng boemong ba ho kopanya - ke karolo ea mantlha ea sehlopha sa physicochemical. Se fetolang sephetho sa liteko ha se sepheo se phahameng sa bohloeki feela; ke tlhahisoleseling le maemo a fanoeng hammoho le peptide.

Patlisiso ea AnaSpec Membrane-Peptide: Litlhaloso tsa ho Lokisetsa Kopo


Hobaneng ha Membrane Peptides e le Sehlopha se arohaneng

Hydrophobicity e etsang hore likarolo tsa transmembrane li sebetse ke tsona tse li etsang hore li be thata ka mokhoa o hlakileng.. A 1995 ithuta ka Journal of Chromatography A (PubMed: 7496489) e ngotse phephetso ea mantlha: Li-peptide tsa hydrophobic tse tsamaellanang le likarolo tsa transmembrane li bonts'a ho qhibiliha ho tlase haholo methating e tloaelehileng ea RP-HPLC le ho bolokoa ho matla ka mokhoa o sa tloaelehang maemong a emisang a C18., ho etsa hore tlhoekiso le sebopeho li se tšepahale tlas'a maemo a tloaelehileng a gradient. Bohloeki bo hlahlojoang tlas'a maemo ao bo ka hlahisa sebopeho sa sebele hampe.

Hofeta tlhoekiso, bothata ba ho tsosolosa bo fapane le ntho leha e le efe e kopanang le li-peptide tse tloaelehileng tsa lipatlisiso. Peptide ea hydrophobic e qhibilihang ho DMSO ka 10 mg/mL e ka theoha hang hang 1:10 ho hlapolla ka hara buffer e nang le metsi, e fetoha e le likarolo tsa amorphous tse ferekanyang liteko tsa karabelo ea lethal dose le ho hlahisa matšoao a bohata a cytotoxicity.. Tharollo ea sena ha se tlhaloso e phahameng ea bohloeki - ke tataiso ea tsosoloso e lumellanang le tefiso e khethehileng ea peptide., boemo ba hydrophobicity, le assay matrix e reretsoeng.

Patlisiso ea AnaSpec Membrane-Peptide: Litlhaloso tsa ho Lokisetsa Kopo

Bakeng sa li-peptide tse kenang liseleng (CPPs) le tatellano e etsang pore, lipalo tsa liteko lia kopanngoa. Li-peptide tsena li sebelisana ka kotloloho le lera la lisele; boits'oaro ba bona ho sehokelo lipakeng tsa stock solution le assay media bo etsa qeto ea hore na teko e lekanya phello ea membrane kapa artifact ea solubility.. Peptide e kopanyang mohatong oa ho hlapolla e tla bonts'a kinetics e fapaneng ea membrane-permeabilizing ho feta tatellano e ts'oanang e qhibilihisitsoeng joalo ka monoma ea 'nete kapa oligomer e nyane.. Lintlha tsa litlhaku tse nkang maemo a kopaneng tlas'a maemo a amanang le tlhahlobo li ka khetholla liphetho tsena.. Karolo ea bohloeki feela ha e etse joalo.


Tataiso ea Solubility ke Tlhaloso ea Pele ea Taelo, Eseng Mongolo o botlaaseng ba leqephe

Litokomane tsa AnaSpec's FAQ bakeng sa tloaelo le li-peptide tsa lethathamo li kenyelletsa tataiso e hlakileng ea ho theha bocha bakeng sa li-peptide tsa hydrophobic.: qhala pele ho DMSO ho isa ho hoo e ka bang 1 mg/mL, ebe o hlapolla ka har'a buffer. Bakeng sa tatellano ea acidic, koloi ea pele e khothalletsoang ke dilute ammonium hydroxide; bakeng sa li-peptide tsa hydrophilic, aqueous buffer kapa metsi a sa hloekang a loketse. Sena ha se mohopolo oa morao-rao - ke tlhaiso-leseling ea maemo a ikhethileng e tsamaisanang le boitsebiso le bohloeki..

Motheo oa tataiso ena o thehiloe hantle. Sigma-Aldrich's Peptide Solubility Guidelines (2023) bolela seo ka ho hlaka, haeba tlhahisoleseding ea solubility e sa tsejoe, ho khetha mokelikeli o sa lumellaneng ho ka hlahisa phoso ea liteko kapa ho baka ho hloleha hoa ho lokisa bocha. Litlhoko tse tharo tseo ba li hlalosang bakeng sa khetho ea solvent - ho qhibiliha ka katleho, ho tsamaellana le teko, le botsitso ba lik'hemik'hale - ho qhibiliha ha foreimi e le qeto ea pele ho tlhahlobo, eseng lintlha tse iketsahallang feela.

Bakeng sa Keletso: Pele o theha peptide ea membrane ea hydrophobic, lumella lyophilized e tiileng hore e futhumale ho mocheso oa kamore ka desiccator ho thibela condensation ea mongobo. The condensation artifact ke e 'ngoe ea mehloli e atileng haholo ea liphetho tse sa khoneheng tsa membrane-peptide..

Bakeng sa li-peptide tsa lethathamo la GMP-grade, AnaSpec e kenyelletsa ka ho hlaka tlhahlobo ea ho qhibiliha hammoho le bioburden, endotoxin, metsi, solvent e setseng, litaba tsa counter-ion, le data ea ho khetholla boholo - phanele ea liteko e sebetsang ho itokisetsa ts'ebeliso joalo ka sehlopha sa lintlha. Karolo ea sehlopha sa lipatlisiso ha e kenyelle litšobotsi tsena kaofela ka bo eona, e leng sona hantle seo bafuputsi ba tobaneng le sona: ho odara peptide ka bohloeki le netefatso ea MS feela khahlano le ho kopa sephutheloana se felletseng sa libapali.


Lintlha tsa Litšobotsi Tseo Bafuputsi ba Membrane-Peptide Ha e le Hantle ba li Hlokang

Counter-ion Content le TFA Moroalo

Boholo ba li-peptide tsa maiketsetso tse hlahisoang ke Fmoc SPPS li hloekisoa ka RP-HPLC e itokisang e sebelisa li-gradients tse nang le TFA mme li arotsoe joalo ka letsoai la trifluoroacetate.. Bakeng sa liteko tse tloaelehileng tsa biochemical, Hangata moroalo oa TFA o khona ho laoleha. Bakeng sa litlhahlobo tse thehiloeng ho lisele - haholo-holo bakeng sa lithuto tsa ho sebelisana le membrane moo peptide e sebelisoang ka ho toba litsong tsa lisele - TFA e setseng ke phetoho e ferekanyang e lokelang ho laoloa..

Tlhahlobo ea Proxiva Labs ea litlamorao tsa counter-ion ho li-peptide tsa lipatlisiso e hlokomela hore TFA e ka hatella pH litharollong tse sa tsitsang tsa tokiso ho pH 4.0-5.5 mme ea sebetsa joalo ka chefo ea metabolism moetlong oa lisele maemong a holimo.. Peptide e shebahalang e hloekile ke HPLC empa e na le moroalo o phahameng oa TFA e ka hlahisa cytotoxicity e hlakileng kapa ho feto-fetoha ha membrane e bonts'ang counter-ion ho fapana le tatellano e reriloeng..

Liphetoho tsa MOL' tataiso mabapi le ho sebetsana le TFA ea counterion tlhahlobong ea bafani e re phapanyetsano ea TFA-to-acetate e lokela ho netefatsoa ke ion chromatography kapa capillary electrophoresis., ka masala a TFA a theohang ka tlase 1.0% w/w ho theha meketjana ea biosafety bakeng sa liteko tsa lisele. A CoA e tlalehang bohloeki ntle le ho tsebahatsa mofuta oa letsoai ha ea phethahala bakeng sa boithuto bofe kapa bofe ba lera la lisele.

Endotoxin: Phapang e Khutsitseng Lithutong tsa Membrane tse Thehiloeng Liseleng

Bohloeki ba HPLC le boima bo sa fetoheng ba MS ha bo fane ka leseli mabapi le litaba tsa endotoxin ea baktheria. Endotoxins ke lipopolysaccharides tse tsoang ho libaktheria tse gram-negative; ha ba na signature ea UV ea peptide-bond mme ha ba hlahise enfelopo ea boima ba tlhahlobo e bonoang ke ESI-MS e tloaelehileng.. Ba feta ka mekhoa ka bobeli ba sa bonahale ka ho feletseng, leha ho le joalo ka likhakanyo tse tlase joalo ka 0.1 EU/mg ba ka kenya tšebetsong litsela tsa TLR4 tse bonts'ang litloaelong tsa mantlha tsa lisele le mela ea macrophage., ho hlahisa li-profiles tsa cytokine tsa ho ruruha tse iketsang e le membrane-peptide bioactivity.

Sena ha se kotsi ea khopolo-taba. A 2003 phatlalatso ka Lipatlisiso tsa Microvascular (PubMed: 14579737) e bontšitse hore tšilafalo ea endotoxin ho litokisetso tsa protheine e kopaneng e felisitse ts'ebetso e hlakileng ea anti-angiogenic - phello e bonoang ea biological e hlahisitsoe ke tšilafalo ho fapana le molek'hule e shebiloeng.. Mokhoa o ts'oanang oa pherekano o sebetsa ho peptide efe kapa efe e sebelisoang lits'ebetsong tsa lisele tse utloang endotoxin.

Bakeng sa lithuto tsa membrane-peptide haholo-holo, tlhahlobo ea endotoxin ha e ka buisanoa. The MOL Liphetoho Beyond-the-CoA moralo oa peptide QC e tiisa hore tekanyetso e tloaelehileng ea ho amohela lipatlisiso bakeng sa endotoxin e ka tlase 5.0 EU/mg (e lekoa ke kinetic chromogenic LAL ka USP <85>), ka litekanyetso tsa biopharmaceutical-grade at 0.1 EU/mg kapa ka tlase. A CoA bakeng sa peptide e sebetsang ka membrane e reretsoeng setso sa lisele e lokela ho tlaleha sephetho se hlakileng sa endotoxin ho EU/mg., ka mokhoa o boletsoeng - eseng feela "endotoxin: tested” kapa lebitso la pasa/feile ntle le tekanyo ya palo.

Litaba tsa Peptide vs. Boima bo felletseng

Lekhalo le amanang le litlhaloso le amana le litaba tsa peptide: karoloana ea thepa e lekantsoeng eo ha e le hantle e leng peptide e shebiloeng, e fapane le letsoai la TFA le setseng, metsi, le tse ling tse non-peptide boima. Barekisi ba tlalehang feela bafuputsi ba HPLC ba tlohelang bohloeki ho bala dosing khahlano le boima bo feteletseng ba vial - e fetelletseng ka 10-30% bakeng sa li-peptide tsa hygroscopic kapa tse letsoai haholo.. AnaSpec's GMP-grade CoA e kenyelletsa boikemisetso ba litaba tsa peptide e le tšobotsi e tloaelehileng; bakeng sa litaelo tsa tloaelo tsa sehlopha sa lipatlisiso, e fumaneha e le tlatsetso ea boikhethelo (hangata ka tlhahlobo ea CHN kapa tlhahlobo ea bongata ba amino acid).

Bakeng sa liteko tsa karabelo ea lethal dose ea membrane-peptide, phapang ena ke lintho tse bonahalang. Peptide e lekantsoe 1 mg mme e tšeloa ka 10 µM, empa ho jara 20% boima bo se nang peptide, e hlile e tšeloa 8 µM. Litekong tsa ho lekanya ho kenngoa ha membrane, IC₅₀ bakeng sa pore ea pore, kapa katleho ea phetisetso ea CPP, a 20% phoso ka mahloriso ka lebitso e ata ka kotloloho liqetong tsa bongata.


Boemo ba Kopo: Litlhaloso tse Bapisang le Moralo oa Teko

Poleloana "app-reading" e fana ka maikutlo a hore litlhaloso li lokela ho bonts'oa ho latela teko e reriloeng, eseng sehlopheng se akaretsang sa "ts'ebeliso ea lipatlisiso." Transmembrane peptide e sebelisitsoeng e le mohlala oa sebopeho ho sebopeho se tiileng sa NMR se na le litlhoko tse fapaneng tse fapaneng ho feta tatellano e tšoanang e sebelisoang e le taolo ea liteko tsa ho kenya lera moetlong oa lisele tse phelang.. Kopo ea NMR e ka mamella DMSO e setseng tharollong ea setoko; tshebediso ya sele-setso e ka se. Boithuto ba NMR ha bo na taba le endotoxin; teko ea ho ruruha e khethoa ka ho feletseng ke eona.

Litlaleho tsa lihlahisoa tsa AnaSpec bakeng sa li-peptide tse sebetsang ka har'a lethathamo la li-membrane - ho kenyeletsoa tatelano ea TM e entsoeng ka prion., Li-peptide tsa GALA tse etsang pore, le CPP e aha - e kenyelletsa lintlha tsa kopo tse lebisang mofuputsi maemong a khethehileng a ts'ebeliso eo peptide e netefalitsoeng ho eona.. Ena ke moelelo oa ts'ebeliso joalo ka tlhaloso: eseng setatemente sa papatso empa ke phatlalatso ea tekheniki e bolellang mosebelisi moo sephutheloana sa sebopeho sa sehlahisoa se leng teng le hore ha se lekane..

Tlhaloso

E lekane bakeng sa tlhahlobo e tlamang ea biochemical?

E lekane bakeng sa thuto ea membrane ea lisele tse phelang?

HPLC bohloeki + MS boitsebiso

Ee

Che

+ Counter-ion / sebopeho sa letsoai

Ee

Ee (karohano)

+ Endotoxin (LAL, EU/mg)

Ee

Ee (tlhokahalo ea mantlha)

+ Teko ea ho qhibiliha (CoA)

Ee

Ee

+ Likahare tsa Peptide (eseng boima bo feteletseng)

Bakeng sa lipapiso tse lekanyelitsoeng

E, - ho hlokahala bakeng sa ho nosetsa ka nepo

Peptide Synthesis + Tataiso ea tsosoloso

Taba ea boikhethelo

Ka matla r Li-Peptide tsa Synthetic khothaletsoa

+ Polelo ea sebaka sa kopo

Taba ea boikhethelo

E khothalelitsoe ka matla

Tafole e kaholimo ha se karete ea lintlha tsa barekisi - ke sesebelisoa sa moralo o ikhethileng. Bafuputsi ba laelang li-peptide tse sebetsang ka membrane ba lokela ho sebelisa moralo oa bona oa liteko ho fumana hore na ho sebetsa litšiea life, ebe u kopa kapa u netefatse liparamente tseo pele taelo e etsoa.


Litlhaloso tsa Fit-for-Purpose: Moralo oa Tekolo ea Bafani

Moelelo o sebetsang ke hore ho odara li-peptide tse sebetsang ka membrane ho hloka puisano ea barekisi e fetang ho khetha boemo bo hloekileng le bongata.. Tlhahlobo e hlophisitsoeng e lokela ho sebetsana le lipotso tse hlano:

1. Sebopeho sa letsoai ke eng, mme TFA e fapanyetsane? Kopa netefatso ea foromo ea counter-ion ho CoA. Bakeng sa litlhahlobo tse thehiloeng ho lisele, Hlalosa letsoai la acetate kapa hydrochloride. Haeba phapanyetsano ea TFA e etsoa, kopa netefatso ea tlhahlobo (IC kapa data ea capillary electrophoresis).

2. E lekoa ka endotoxin, 'me ke palo ea sephetho? Ho pasa/ho hloleha ha hoa lekana. Kopa EU/mg e tlalehile khahlano le USP e boletsoeng <85> kapa mokhoa oa LAL, ka moeli oa ho lemoha o senotsoe.

3. Na litaba tsa peptide li tlalehiloe ka thoko ho boima ba 'mele? Haeba morekisi a tlaleha boima ba 'mele feela, e ka kopa qeto ea litaba e le tlatsetso kapa sebelisa phokotso e tloaelehileng e tsamaellanang le sehlopha sa hygroscopicity se tsebahalang sa tatelano..

4. E tobane le ts'ebeliso ea tataiso ea solubility? Botsa hore na mofani oa thepa o fana ka tataiso ea ho kopanya bocha ho latela tefiso ea peptide le hydrophobicity, kapa keletso ea generic solubility feela. Bakeng sa likarolo tsa TM le li-CPP tsa hydrophobic tse matla, DMSO pre-dissolution e lateloang ke ho hlapolla ka metsi hoa hlokahala; mofani oa thepa o lokela ho khona ho netefatsa sena kapa ho fana ka maemo a lekiloeng a ho tsosolosa.

5. Na lisebelisoa tsa tlhahlobo tsa morekisi li lumellana le litlhoko tsa hau tsa tlhahlobo? Bafani ba sebetsang ka Sehlopha 100 libaka tsa likamore tse hloekileng tse nang le tlhokomelo e tsoelang pele ea tikoloho le li-endotoxin tse netefalitsoeng li maemong a betere bakeng sa li-peptide tsa sehlopha sa lisele ho feta barekisi ba nang le maemo a tloaelehileng a laboratori.. Liphetoho tsa MOL' tloaelo ea peptide synthesis meralo ya motheo e kenyeletsa Sehlopha 100 tlhahiso e nyopa, ka lethathamo le felletseng la tlhahlobo - solubility, litaba tsa counterion, endotoxin, boima ba mmele, nyopa, pH, le maemo a mongobo - a fumaneha joalo ka litšobotsi tse boletsoeng ho CoA. Tlhahiso ea Peptide

Bakeng sa bafuputsi ba hlokang moralo o ikemetseng oa ho hlahloba boleng ba litokomane tsa mofani oa thepa, the ho hlahloba barekisi ba peptide ka tataiso ea likhatiso ho molchanges.com e fana ka mokhoa o thehiloeng ho qotso ho lekola hore na likopo tsa semelo sa mofani oa thepa li lumellana le hore na li-peptide tsa bona li sebetsa joang lipatlisisong tse hlahlojoang ke lithaka..


Khahlano e Matla ka ho Fetisisa - le Ke Hobane'ng ha Bohloeki bo ntse bo le Bohlokoa

Khang e ka holimo ha ea lokela ho baloa e le tseko ea hore bohloeki ha bo na thuso. Bohloeki bo phahameng ba HPLC e ntse e le tlhoko ea motheo. Lera peptide ka 70% bohloeki bo jara 30% litšila - hangata ho hlakolwa tatelano, truncations, le li-artifacts tsa sehlopha sa tšireletso tse ka kenngoa ka har'a li-membrane tse nang le geometry e fapaneng, kinetics, kapa stoichiometry ho feta tatellano ea sepheo. Teko e etselitsoeng ho lekanya phello e itseng ea TM peptide ho potency ea bilayer ha e lekanye hore ha karolo ea boraro ea thepa e fapane le lik'hemik'hale..

Taba ke hore bohloeki ke fatše, eseng siling. Membrane-peptide CoA e tlalehang bohloeki ba HPLC feela le boitsebahatso ba MS e hlakisitse fatše. Ha ea fana ka siling: sephutheloana se felletseng sa sebopeho se hlokahalang ho hokahanya lintho tse ka har'a vial ho liphetho tse tšepahalang tsa liteko ts'ebelisong eo e rekiloeng bakeng sa eona.. Lekhalo pakeng tsa fatše le siling ke sebaka se sebetsang sa litlhaloso tse lokiselitsoeng ho sebelisoa.

Tataiso ea ICH Q6B mabapi le litlhaloso tsa lihlahisoa tsa biotechnology le baeloji e totobatsa hore litšoaneleho tsa CoA li lokela ho hlalosoa ho ipapisitsoe le ts'ebeliso e reriloeng ea thepa - molao-motheo o sebetsang ka ho lekana ho li-peptide tsa maiketsetso tse sebelisoang tlhahlobong., cellular, le maemo a preclinical. Sebopeho se hlophisitsoeng sa tlhahlobo sa AnaSpec bakeng sa li-peptide tsa lethathamo la lipatlisiso tsa sehlopha sa lipatlisiso khahlanong le GMP ke ts'ebetsong ea molao-motheo ona.: phanele e felletseng ea likarolo tsa GMP (boima ba mmele, endotoxin, ho qhibiliha, counter-ion, metsoako e setseng, metsi) e bonts'a litlhoko tse hlakileng tsa lits'ebetso tse kotsi haholo, eseng feela lipheo tse phahameng tsa bohloeki.


Se Boleloang ke Tekanyetso ea AnaSpec Bakeng sa Balekane ba Custom Synthesis

Mokhoa oa lethathamo la AnaSpec ho li-peptide tse sebetsang ka membrane - tataiso e netefalitsoeng ea ho theha bocha, liphanele tsa libopeho tsa tiered, litokomane tsa koporo - e beha sebaka sa litšupiso bakeng sa seo bafuputsi ba lokelang ho se lebella ho tsoa ho balekane ba tloaelo ba sebetsang sehlopheng sena sa peptide. Litaelo tse ikhethileng bakeng sa likarolo tsa TM, CPPs, ka lipopeptides, kapa tatellano ea pore-forming e lokela ho hlahlojoa khahlano le moelelo o tšoanang oa litlhaloso: eseng “bohloeki boo u ka bo fihlelang?” empa “ke phanele efe ea liteko, tataiso ea tsosoloso, le litokomane tsa kopo li tla romelloa ka thepa?”

Sebaka sa peptide ha se e-s'o tloaelehe ho li-CoAs tse itokiselitseng kopo ho pholletsa le motsoako oa tloaelo oa sehlopha sa lipatlisiso. Barekisi ba bangata ba fana ka HPLC le MS joalo ka sephutheloana sa kamehla, e nang le endotoxin, phapanyetsano ea counter-ion, le tlhahlobo ea solubility e fumaneha feela ka kopo e hlakileng le ka litšenyehelo tse ling. Bakeng sa lilaboratori tse bileng le liteko tse ke keng tsa hlahisoa tsa membrane-peptide ntle le ho hloleha ho beha molato, lekhalo lena la litlhaloso hangata ke sesosa sa motso.

Qeto e sebetsang ke ho nka moqoqo oa litlhaloso e le karolo ea mokhoa oa ho hlophisa ho fapana le ho nahana ka morao. Litšebeletso tsa tlhahlobo ea peptide ea MOL Liphetoho - ho koahela bohloeki, dikahare, nyopa, pH, mongobo, ho qhibiliha, litaba tsa counter-ion, dikahare tsa tshepe, endotoxin, le bioburden - e emela mefuta e mengata ea litšobotsi tseo sephutheloana se itokiselitseng ts'ebeliso e lokelang ho tsoa ho sona. Ha se tšobotsi e 'ngoe le e' ngoe e sebetsang ho peptide e 'ngoe le e' ngoe kapa sesebelisoa se seng le se seng; taeo ke ho tseba hore na ke bafe ba etsang le ho ba kopa pele ho qalisoa ha synthesis.


Ho ea ho Maemo a ho Itokisa-ts'ebeliso bakeng sa Membrane-Active Peptides

Tšimo ea membrane-peptide e ne e tla rua molemo ho tsoa lethathamong le hlalositsoeng la ho itokisa ts'ebeliso le khethollang lipakeng:

  • Boitshupo-le-hlweko-feela (HPLC bohloeki + MOF): e loketseng tlhahlobo ea laebrari, liteko tsa pele tsa in vitro, mosebetsi oa sebopeho moo tatellano e mengata e ntseng e hlahlojoa ka ho bapisa

  • Cell-culture-ready: boitsebiso le bohloeki mmoho le endotoxin (bongata LAL), foromo ea counter-ion e tiisitsoe, tlhahlobo ea ho qhibiliha, le litaba tsa peptide (eseng boima bo feteletseng)

  • Lipatlisiso tse nyopa li se li loketse: cell-culture-ready plus bioburden, tlhahlobo ea sterility, le litokomane tsa tlhahiso ea likamore tse hloekileng

Lethathamo la lethathamo la lethathamo la "GMP" la AnaSpec le hakanya boemo ba boraro bakeng sa tatellano e netefalitsoeng. Ho ba sieo ha se tšoanang ka mokhoa o pharalletseng bakeng sa motsoako oa sehlopha sa lipatlisiso ho bolela hore bafuputsi ba bangata ba membrane-peptide ba iketsetsa sephutheloana sena sa projeke e le 'ngoe ka nako - ba kopa tlhahlobo ea endotoxin ho morekisi a le mong., phapanyetsano ea counter-ion ho tsoa ho e 'ngoe, le ka tšepo ea hore tataiso ea tokiso bocha pampiring ea koranta e sebetsa ho tatellano ea bona.

Khang eo sehlooho sena se e etsang ke ea meralo: bakeng sa li-peptide tse sebetsang ka membrane, litlhaloso tse lokiselitsoeng kopo ha se tlatsetso ea premium. Ke lintlha tse fokolang tse behiloeng tse hlokahalang ho hokahanya thepa e sieang setsi sa motsoako ho sephetho se ka tšeptjoang sa liteko bencheng. Ho hloeka ka lebitso ho u bolella hore motsoako o sebelitse. Litlhaloso tse itokiselitseng ts'ebeliso li u joetsa hore na peptide e se e loketse liteko tseo u li entseng.


Mehato e Latelang

Haeba u etsa liteko ka li-peptide tsa transmembrane, CPPs, ka lipopeptides, kapa tatellano e meng e sebetsang ka membrane mme o hloka ho hlalosa sephutheloana sa sebopeho se loketseng sistimi ea hau ea tlhahlobo - kapa haeba o sebetsa ka liphetoho tse rarahaneng., tatellano e thata ea hydrophobic, kapa li-readouts tse thehiloeng liseleng tse hlokang endotoxin e tlase, thepa e entsoeng e hloekisitsoeng - Sehlopha sa botekgeniki sa MOL Changes se ka lekola tatelano ea hau le litlhoko tsa ts'ebeliso mme sa fana ka moralo o nepahetseng bakeng sa morero.. Finyella ho molchanges.com bakeng sa puisano ea bokhoni ba tekheniki.

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Zejun Peng

Ofisiri e ka Sehloohong ea Theknoloji; Setsebi sa Peptide Synthesis Tsebo ea Konokono: Motsoako o rarahaneng oa peptide, liphetoho tse seng tsa tlhaho tsa amino acid, le kaho ea cyclic peptides le stapled peptides.

Biography:Zejun Peng o na le boiphihlelo bo batsi ho chemistry ea tlhaho le peptide synthesis. O na le tsebo ea ho sebelisa motsoako oa peptide e tiileng-mohato (SPSS) le motsoako oa li-peptide tsa metsi (LPPS), 'me o na le tsebo e khethehileng ea ho hlola "tatelano eo ho leng thata haholo ho e kopanya" (joalo ka li-peptide tsa ultra-long-chain, tatelano e phahameng haholo ea hydrophobic, le multiple disulfide bond mene). Tlas'a boetapele ba hae, sehlopha se atlehile ho hlola mathata a tekheniki ka liphetoho tse 'maloa tse khethehileng (joalo ka N-methylation, PEGylation, le ho ngola fluorescent), ho boloka sekgahla sa katleho se qadileng hofeta 98%.

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