久久精品酒店无码视频_g∨天堂在线观看免费_av之高清在线_午夜福利资源片在线

浙江省科技型企業(yè)---加速您的多肽研究
首頁 >多肽產(chǎn)品 >二肽Fluorogenic DPP IV substrate; APCE substrate

多肽產(chǎn)品

125791-92-6,二肽Fluorogenic DPP IV substrate; APCE substrate,H2N-Ala-Pro-AFC,H2N-AP-AFC,杭州專肽生物的產(chǎn)品

二肽Fluorogenic DPP IV substrate; APCE substrate

Fluorogenic substrate for dipeptidyl peptidase IV (DPP IV) and Xaa-Pro dipeptidase. Substrate for fibroblast activation protein alpha (FAP, also called antiplasmin-cleaving enzyme, APCE).

編號:181847

CAS號:125791-92-6

單字母:H2N-AP-AFC

糾錯(cuò)
  • 編號:181847
    中文名稱:二肽Fluorogenic DPP IV substrate; APCE substrate
    中文同義詞:二肽基肽酶IV(DPP IV)底物
    CAS號:125791-92-6
    單字母:H2N-AP-AFC
    三字母:H2N

    N端氨基

    -Ala

    丙氨酸

    -Pro

    脯氨酸

    -AFC

    7-氨基-4-三氟甲基香豆素

    氨基酸個(gè)數(shù):2
    分子式:C18H18N2O4F3
    平均分子量:383.34
    精確分子量:383.12
    等電點(diǎn)(PI):-
    pH=7.0時(shí)的凈電荷數(shù):0.97
    平均親水性:-0.5
    疏水性值:0.1
    外觀與性狀:白色粉末狀固體
    消光系數(shù):-
    來源:人工化學(xué)合成,僅限科學(xué)研究使用,不得用于人體。
    純度:95%、98%
    鹽體系:可選TFA、HAc、HCl或其它
    儲(chǔ)存條件:負(fù)80℃至負(fù)20℃
    標(biāo)簽:AFC修飾肽    二肽(Dipeptide)   

  • Fluorogenic substrate for dipeptidyl peptidase IV (DPP IV) and Xaa-Pro dipeptidase. Substrate for fibroblast activation protein alpha (FAP, also called antiplasmin-cleaving enzyme, APCE).

    多肽熒光標(biāo)記由于沒有放射性,實(shí)驗(yàn)操作簡單。因此,目前在生物學(xué)研究中多肽熒光標(biāo)記應(yīng)用非常廣泛,多肽熒光標(biāo)記方法與熒光試劑的結(jié)構(gòu)有關(guān)系,對于有游離羧基的采用的方法與接多肽反應(yīng)相同,也采用HBTU/HOBt/DIEA方法連接。 在N端標(biāo)記FITC的多肽需經(jīng)歷環(huán)化作用來形成熒光素,通常會(huì)伴有最后一個(gè)氨基酸的去除,但當(dāng)有一個(gè)間隔器如氨基己酸,或者是通過非酸性環(huán)境將目的多肽從樹脂上切下來時(shí),這種情況可避免在切割的過程中被TFA切割掉。
            人們利用利用熒光標(biāo)記的多肽來檢測目標(biāo)蛋白的活性,并將 其發(fā)展的高通量活性篩選方法應(yīng)用于疾病治療靶點(diǎn)蛋白的藥物篩選和藥物開發(fā)(例如,各種激 酶、磷酸酶、肽酶等)。
            專肽生物能夠提供技術(shù)成熟的各種熒光標(biāo)記多肽。

     

     

    下面是一些常見的多肽修飾熒光物質(zhì)結(jié)構(gòu):




    FITC標(biāo)記

          FITC(異硫氰酸熒光素)具有比較高的活性,我們公司可以通過兩種方式將FITC標(biāo)記于多肽 上:(1) 將FITC標(biāo)記于賴氨酸(Lys)或被選擇性地脫保護(hù)的鳥氨酸(ornithine)側(cè)鏈氨基 上;(2) 將FITC標(biāo)記于多肽N端氨基。

          當(dāng)在N端標(biāo)記時(shí),建議在最后一個(gè)氨基和由異硫氰酸酯與氨基反應(yīng)產(chǎn)生的硫脲鍵之間引入 烷基間隔器(alkyl spacer),如氨基己酸(Ahx)。鏈接切割需要酸性環(huán)境,在N端標(biāo)記FITC 的多肽需經(jīng)歷環(huán)化作用來形成熒光素,通常會(huì)伴有最后一個(gè)氨基酸的去除,但當(dāng)有一個(gè)間隔器 如氨基己酸,或者是通過非酸性環(huán)境將目的肽從樹脂上切下來時(shí),這種情況可避免。空間位阻 被認(rèn)為是在熒光染料前使用Ahx的主要原因,而不是為什么FITC不能直接偶聯(lián)在多肽上的原因。

          Ahx或b-Ala均可作為間隔器用于FITC標(biāo)記的多肽上。

    普通熒光修飾

    熒光修飾中文名稱 N端 N端帶有l(wèi)inker
    生物素標(biāo)記多肽 Biotin- Biotin-Ahx-
    異硫氰酸熒光素 FITC-   FITC-Ahx-  
    5-羧基熒光素 5-FAM- 5-FAM-Ahx- 
    丹磺酰熒光素 Dansyl- Dansyl-Ahx- 
    5-羧基四甲基羅丹明 TMR-  (TAMRA-) TMR-Ahx-  (TAMRA-Ahx-) 
    通過Lys側(cè)鏈氨基連接的熒光修飾
    多肽N端 多肽序列中間 N端帶有l(wèi)inker
    生物素標(biāo)記多肽 Biotin- 多肽C端
    Lys(Biotin)-  -Lys(Biotin)-- -Lys(Biotin) 
    Lys(FITC)- -Lys(FITC)-  -Lys(FITC)
    Lys(5-FAM)- -Lys(5-FAM)- -Lys(5-FAM)
    Lys(Dansyl)-  -Lys(Dansyl)- -Lys(Dansyl)
    Lys(TMR)- -Lys(TMR)-  -Lys(TMR)
    Lys(Dnp)- -Lys(Dnp)-  -Lys(Dnp)

    專肽常做的熒光物質(zhì)的激發(fā)光波長和發(fā)射光波長??晒﹨⒖歼x擇:

    熒光基團(tuán) Ex(nm) Em(nm) 熒光基團(tuán) Ex(nm) Em(nm)
    羥基香豆素 325 386 R-phycoerythrin (PE) (489) 565 578
    丹磺酰氯 340 578 Rhodamine Red-X 560 580
    AMC 345 445 Tamara 565 580
    甲氧基香豆素 360 410 Alexa fluor 555 556 573
    Alexa fluor 系列 345 442 Alexa fluor 546 556 573
    氨基香豆素 350 445 Rox 575 602
    Dabcyl 453 - Alexa fluor 568 578 603
    Cy2 490 510 Texas Red 589 615
    FAM 495 517 Alexa fluor 594 590 617
    Alexa fluor 488 494 517 Alexa fluor 621 639
    FITC 495 519 Alexa fluor 633 650 668
    Alexa fluor 430 430 545 Cy5 (625) 650 670
    5-FAM 492 518 Alexa fluor 660 663 690
    Alexa fluor 532 530 530 Cy5.5 675 694
    HEX 535 556 TruRed 490; 675 695
    5-TAMRA 542 568 Alexa fluor 680 679 702
    Cy3 550 570 Cy7 743 767
    TRITC 547 572 Cy3.5 581 596

  • DOI名稱
    10.1006/prep.2001.1572Expression, purification, and kinetic characterization of full-length human fibroblast activation protein下載
    10.1042/BJ20021643Catalytic properties and inhibition of proline-specific dipeptidyl peptidases II, IV and VII下載
    10.1021/bi026846sStructural requirements for catalysis, expression, and dimerization in the CD26/DPIV gene family下載
    10.1110/ps.03352504N-linked glycosylation of dipeptidyl peptidase IV (CD26): effects on enzyme activity, homodimer formation, and adenosine deaminase binding下載
    10.1110/ps.03460604Crystal structure of human dipeptidyl peptidase IV in complex with a decapeptide reveals details on substrate specificity and tetrahedral intermediate formation下載
    10.1016/j.bbaexp.2004.03.010Dipeptidyl peptidase 9 has two forms, a broad tissue distribution, cytoplasmic localization and DPIV-like peptidase activity下載
    10.1111/j.1742-4658.2006.05253.xExtraenzymatic functions of the dipeptidyl peptidase IV-related proteins DP8 and DP9 in cell adhesion, migration and apoptosis下載
    10.1021/bi701921bFibroblast activation protein peptide substrates identified from human collagen I derived gelatin cleavage sites下載
    10.1016/j.ejphar.2008.04.047Pharmacokinetic, pharmacodynamic, and efficacy profiles of alogliptin, a novel inhibitor of dipeptidyl peptidase-4, in rats, dogs, and monkeys下載
    10.1002/art.27395Inhibition of fibroblast activation protein and dipeptidylpeptidase 4 increases cartilage invasion by rheumatoid arthritis synovial fibroblasts下載
    10.1002/pro.443The dimeric transmembrane domain of prolyl dipeptidase DPP-IV contributes to its quaternary structure and enzymatic activities下載
    10.1371/journal.pone.0038744Linagliptin improves insulin sensitivity and hepatic steatosis in diet-induced obesity下載
    10.1210/jc.2013-1029The DPP-4 inhibitor linagliptin restores β-cell function and survival in human isolated islets through GLP-1 stabilization下載
    10.1016/j.fob.2013.12.001Quantitation of fibroblast activation protein (FAP)-specific protease activity in mouse, baboon and human fluids and organs下載
    10.1038/srep14421A whole-cell tumor vaccine modified to express fibroblast activation protein induces antitumor immunity against both tumor cells and cancer-associated fibroblasts下載
    10.1111/bph.13549Glucagon-like peptide-1 receptor signalling reduces microvascular thrombosis, nitro-oxidative stress and platelet activation in endotoxaemic mice下載
    10.1046/j.1432-1327.1998.2540650.xMouse fibroblast-activation protein--conserved Fap gene organization and biochemical function as a serine protease下載
    10.1016/j.bbapap.2005.09.013Molecular characterization of a novel dipeptidyl peptidase like 2-short form (DPL2-s) that is highly expressed in the brain and lacks dipeptidyl peptidase activity下載
    10.1021/acs.jmedchem.6b00475Comparative Analysis of Binding Kinetics and Thermodynamics of Dipeptidyl Peptidase-4 Inhibitors and Their Relationship to Structure下載
  • 暫時(shí)沒有數(shù)據(jù)
  • 暫時(shí)沒有數(shù)據(jù)