產(chǎn)品訂購信息：
英文名稱  Anti-RAB38 

中文名稱   G蛋白結(jié)合蛋白R(shí)AB38抗體說明書 

別    名  Cell membrane; Lipid anchor; Cytoplasmic side (Potential). Melanosome; RAB38_HUMAN.

濃    度   1mg/1ml

規(guī) 格  0.2ml/200μg

抗體來源   Rabbit

克隆類型   polyclonal

交叉反應(yīng)   Human, Mouse, Rat, Dog, Pig, Cow, Horse, Rabbit, Sheep 

產(chǎn)品類型   一抗  

研究領(lǐng)域    信號(hào)轉(zhuǎn)導(dǎo) G蛋白信號(hào)

蛋白分子量  predicted molecular weight: 24kDa

性    狀   Lyophilized or Liquid

免 疫 原 KLH conjugated synthetic peptide derived from human RAB38 

亞    型   IgG

純化方法   affinity purified by Protein A

儲(chǔ) 存 液   Preservative: 15mM Sodium Azide, Constituents: 1% BSA, 0.01M PBS, pH 7.4

G蛋白結(jié)合蛋白R(shí)AB38抗體說明書 產(chǎn)品應(yīng)用    WB=1:100-500 ELISA=1:500-1000 IP=1:20-100 IHC-P=1:100-500 IHC-F=1:100-500 ICC=1:100-500 IF=1:100-500

（石蠟切片需做抗原修復(fù)） 

 not yet tested in other applications.

 optimal dilutions/concentrations should be determined by the end user.  

保存條件  Store at -20 °C for one year. Avoid repeated freeze/thaw cycles. The lyophilized antibody is stable at room temperature for at least one month and for greater than a year when kept at -20°C. When reconstituted in sterile pH 7.4 0.01M PBS or diluent of antibody the antibody is stable for at least two weeks at 2-4 °C. 

Important Note  This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications. 

產(chǎn)品介紹 The Ras-related superfamily of guanine nucleotide binding proteins, which includes the R-Ras, Rap, Ral/Rec and Rho/Rab superfamilies exhibit 30-60% homology with Ras p21. Accumulating data suggests an important role for Rab proteins, either in endocytosis or in biosynthetic protein transport. The transport of newly synthesized proteins from the endoplasmic reticulum to various stacks of the Golgi complex and to secretory vesicles involves at each stage the movement of carrier vesicles, a process that appears to involve Rab protein function. The possiblity that Rab proteins might also direct the exocytosis from secretory vesicles to the plasma membrane is supported by the observation that in yeast, the SEC4 protein, which is 40% homologous to Rab proteins, is associated with secretory vesicles. At least eight members of the Rab family have been identified, each of which is found at a particular stage of a membrane transport pathway.

Function : May be involved in melanosomal transport and docking. Involved in the proper sorting of TYRP1. Plays a role in the maturation of phagosomes that engulf pathogens, such as S.aureus and M.tuberculosis.

Subcellular Location : Cell membrane; Lipid-anchor; Cytoplasmic side (Potential). Melanosome. Cytoplasmic vesicle, phagosome. Cytoplasmic vesicle, phagosome membrane; Lipid-anchor; Cytoplasmic side (By similarity). Note=Recruited to phagosomes containing S.aureus or M.tuberculosis.

Tissue Specificity : Expressed in melanocytes.

Post-translational modifications : Although at least one in vitro system can process and methylate the prenylated C-terminal, in an in vitro system that normally express Rab-38 and in vivo the prenylated C-terminal is not proteolytically processed and not methylated.

Similarity : Belongs to the small GTPase superfamily. Rab family.

Database links : UniProtKB/Swiss-Prot: P57729.1

GM-CSF(Granulocyte-Macrophage Colony Stimulating Factors) 粒細(xì)胞-巨噬細(xì)胞克隆刺激因子抗原Multi-class antibodies規(guī)格： 0.5mg

MME CD10 / Neprilysin / MME 鼠單抗 (PE) Human

Rhesus antibody Rh Phospho-Cyclin B1(Ser126) 磷酸化周期素B1抗體 規(guī)格 0.1ml

Western封閉液 100ml 自產(chǎn)

Zic1 英文名稱： 鋅指蛋白201抗體 0.1ml

DUX4 英文名稱： 雙同源框蛋白4抗體 0.2ml

MME CD10 / Neprilysin / MME 鼠單抗 (PE) Human

Shiga-like toxin IIe variant subunit A/FITC 熒光素標(biāo)記抗豬病大腸桿菌志賀樣毒素Ⅱ型突變體(O139菌株)抗體IgGMulti-class antibodies規(guī)格： 0.2ml

TIMP-3(Tissue Inhibitor of Metalloproteinase-3) 金屬蛋白酶組織抑制因子(抗原)Multi-class antibodies規(guī)格： 0.5mg

神經(jīng)束蛋白-155 Anti-Neurofascin-155 0.2ml

Synaptotagmin XII 英文名稱： 突觸結(jié)合蛋白12抗體 0.2ml

EGF 英文名稱： 表皮生長因子抗體 0.1ml

Rhesus antibody Rh Phospho-PAK1 (Ser199/204)/PAK2 (Ser192/197) 磷酸化p21激活激酶1/2抗體 規(guī)格 0.1ml

TIMP-3(Tissue Inhibitor of Metalloproteinase-3) 金屬蛋白酶組織抑制因子(抗原)Multi-class antibodies規(guī)格： 0.5mg

zinc finger protein 830 英文名稱： 鋅指蛋白830抗體 0.2ml

phospho-DNA PKcs (Thr2609) 英文名稱： 磷酸化DNA依賴性蛋白激酶抗體 0.1ml

禽腦脊髓炎病毒抗體 Anti-AEV 0.1ml

Anti-AT1R/AGTR1/FITC 熒光素標(biāo)記緊張素Ⅱ-1型受體抗體IgGMulti-class antibodies規(guī)格： 0.2ml

Rhesus antibody Rh phospho-FANCG (Ser383) 磷酸化DNA損傷修復(fù)基因XRCC9抗體 規(guī)格 0.1ml

Cripto-1(N-Terminus) 衍化生長因子抗原(表皮生長因子相關(guān)肽)N端Multi-class antibodies規(guī)格： 0.5mg

VEGFA Protein Human 重組人 VEGF 183 / VEGF-A 蛋白

Ishikawa 人細(xì)胞

IL12A & IL12B Others Mouse 小鼠 IL12A & IL12B Heterodimer 人細(xì)胞裂解液 (陽性對(duì)照)

T84人腺癌肺轉(zhuǎn)移細(xì)胞 The cell T84 of human colon adenocarcinoma of lung metastasis D-MEM/F-12培養(yǎng)基+5%FBS

兔腎細(xì)胞;RK-13

小鼠腦膜細(xì)胞(MMC)(5×105) CNE1, 人細(xì)胞系 Human

CL-0359HLF-a(人肺細(xì)胞)5×106cells/瓶×2

CD28 Others Human 人 CD28 / TP44 人細(xì)胞裂解液 (陽性對(duì)照)

人腎皮質(zhì)上皮細(xì)胞總RNAHRCEpiC NA

MDA-MB-468細(xì)胞，人癌細(xì)胞 猴的骨髓間充質(zhì)干細(xì)胞,MSCS細(xì)胞 HT-29, 人細(xì)胞

NCI-H460(人細(xì)胞) 5×106cells/瓶×2

HDMEC pre-screened Pellet 人真皮微內(nèi)皮細(xì)胞團(tuán)塊(預(yù)選型) > 1 mio.cells 成骨細(xì)胞培養(yǎng)基ObM-prf

G蛋白結(jié)合蛋白R(shí)AB38抗體說明書 VEGFA Protein Human 重組人 VEGF 183 / VEGF-A 蛋白

Ishikawa 人細(xì)胞

IL12A & IL12B Others Mouse 小鼠 IL12A & IL12B Heterodimer 人細(xì)胞裂解液 (陽性對(duì)照)

T84人腺癌肺轉(zhuǎn)移細(xì)胞 The cell T84 of human colon adenocarcinoma of lung metastasis D-MEM/F-12培養(yǎng)基+5%FBS

兔腎細(xì)胞;RK-13

小鼠腦膜細(xì)胞(MMC)(5×105) CNE1, 人細(xì)胞系 Human

抗體的生物素化標(biāo)記實(shí)驗(yàn)要點(diǎn)：

1. G蛋白結(jié)合蛋白R(shí)AB38抗體說明書 如在反應(yīng)混合液中有疊氮鈉或游離氨基存在,會(huì)抑制標(biāo)記反應(yīng)。因此,蛋白質(zhì)在反應(yīng)前要對(duì) 0.1mol/L碳酸氫鈉緩沖液或0.5mol/L硼酸緩沖液充分透析；

2.所用的NHSB及待生物素化蛋白質(zhì)之間的分子比按蛋白質(zhì)表面的ε-氨基的密度會(huì)有所不同,選擇不當(dāng)則影響標(biāo)記的效率,應(yīng)先用幾個(gè)不同的分子比來篩選最適條件；

3.用NHSB量過量也是不利的,抗原的結(jié)合位點(diǎn)可能因此被封閉,導(dǎo)致抗體失活；

4.由于抗體的氨基不易接近可能造成生物素化不足,此時(shí)可加入去污劑如 Triton x-100, Tween20等；

5.當(dāng)游離ε-氨基(賴氨酸殘基的氨基)存在于抗體的抗原結(jié)合位點(diǎn)時(shí),或位于酶的催化位點(diǎn)時(shí),生物素化會(huì)降低或損傷抗體蛋白的結(jié)合力或活性；

6.生物素還可能與不同的功能基團(tuán),如羰基、氨基、巰基、異咪唑基及苯酚基,也可與糖基共價(jià)結(jié)合；

7.交聯(lián)反應(yīng)后,應(yīng)充分透析,否則,殘余的生物素會(huì)對(duì)生物素化抗體與親和素的結(jié)合產(chǎn)生競爭作用；

8.在細(xì)胞的熒光標(biāo)記實(shí)驗(yàn)中,中和親和素的本底低,但由于鏈霉親和素含有少量正電荷,故對(duì)某些細(xì)胞可導(dǎo)致高本底。

抗體的鑒定：

1）G蛋白結(jié)合蛋白R(shí)AB38抗體說明書 抗體的效價(jià)鑒定：不管是用于診斷還是用于,制備抗體的目的都是要求較高效價(jià)。不同的抗原制備的抗體,要求的效價(jià)不一。鑒定效價(jià)的方法很多,包括有試管凝集反應(yīng),瓊脂擴(kuò)散試驗(yàn),酶聯(lián)免疫吸附試驗(yàn)等。常用的抗原所制備的抗體一般都有約成的鑒定效價(jià)的方法,以資比較。如制備抗抗體的效價(jià),一般就采用瓊脂擴(kuò)散試驗(yàn)來鑒定。

2）抗體的特異性鑒定：抗體的特異性是指與相應(yīng)抗原或近似抗原物質(zhì)的識(shí)別能力?？贵w的特異性高,它的識(shí)別能力就強(qiáng)。衡量特異性通常以交叉反應(yīng)率來表示。交叉反應(yīng)率可用競爭抑制試驗(yàn)測定。以不同濃度抗原和近似抗原分別做競爭抑制曲線,計(jì)算各自的結(jié)合率,求出各自在IC50時(shí)的濃度,并按公式計(jì)算交叉反應(yīng)率。 

如果所用抗原濃度IC50濃度為pg/管,而一些近似抗原物質(zhì)的IC50濃度幾乎是無窮大時(shí),表示這一抗血清與其他抗原物質(zhì)的交叉反應(yīng)率近似為0,即該血清的特異性較好。

3）抗體親和力：是指抗體和抗原結(jié)合的牢固程度。親和力的高低是由抗原分子的大小,抗體分子的結(jié)合位點(diǎn)與抗原決定簇之間立體構(gòu)型的合適度決定的。有助于維持抗原抗體復(fù)合物穩(wěn)定的分子間力有氫鍵,疏水鍵,側(cè)鏈相反電荷基因的庫侖力,范德華力和空間斥力。親和力常以親和常數(shù)K表示,K的單位是L/mol。抗體親和力的測定對(duì)抗體的篩選,確定抗體的用途,驗(yàn)證抗體的均一性等均有重要意義。