抗體的生物素化標記實驗要點：

1. 成對樣同源結構域轉錄因子2抗體說明書 如在反應混合液中有疊氮鈉或游離氨基存在,會抑制標記反應。因此,蛋白質在反應前要對 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之間的分子比按蛋白質表面的ε-氨基的密度會有所不同,選擇不當則影響標記的效率,應先用幾個不同的分子比來篩選最適條件；

3.用NHSB量過量也是不利的,抗原的結合位點可能因此被封閉,導致抗體失活；

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

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

6.生物素還可能與不同的功能基團,如羰基、氨基、巰基、異咪唑基及苯酚基,也可與糖基共價結合；

7.交聯(lián)反應后,應充分透析,否則,殘余的生物素會對生物素化抗體與親和素的結合產(chǎn)生競爭作用；

8.在細胞的熒光標記實驗中,中和親和素的本底低,但由于鏈霉親和素含有少量正電荷,故對某些細胞可導致高本底。

產(chǎn)品訂購信息：
英文名稱  Anti-PITX2 

中文名稱   成對樣同源結構域轉錄因子2抗體說明書 

別    名  All1 responsive gene 1; ALL1 responsive protein ARP1; ALL1-responsive protein ARP1; ARP 1; ARP1; Brx 1; Brx1; Homeobox protein PITX2; IDG 2; IDG2; IGDS 2; IGDS; IGDS2; IHG 2; IHG2; IRID 2; IRID2; Otlx 2; Otlx2; Paired like homeodomain transcription factor 2; Paired-like homeodomain transcription factor 2; Pituitary homeobox 2; PITX 2; pitx2; PITX2_HUMAN; PTX 2; PTX2; RGS; RIEG 1; RIEG; Rieg bicoid related homeobox transcription factor 1; RIEG bicoid related homeobox transcription factor; RIEG bicoid-related homeobox transcription factor; RIEG1; RS antibody solurshin.

濃    度   1mg/1ml

規(guī) 格  0.2ml/200μg

抗體來源   Rabbit

克隆類型   polyclonal

交叉反應   Human, Mouse, Rat, Chicken, Dog, Cow, Horse, Rabbit 

產(chǎn)品類型   一抗  

研究領域    心 發(fā)育生物學 轉錄調節(jié)因子 表觀遺傳學

蛋白分子量  predicted molecular weight: 35kDa

性    狀   Lyophilized or Liquid

免 疫 原 KLH conjugated synthetic peptide derived from human PITX2 

亞    型   IgG

純化方法   affinity purified by Protein A

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

成對樣同源結構域轉錄因子2抗體說明書 產(chǎn)品應用    WB=1:100-500 ELISA=1:500-1000 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） 

 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 Pitx2 also regulates lung symmetry by encoding “l(fā)eftness” of the lung. Pitx2 is asymmetrically expressed in the left lateral-plate mesoderm, and mutant mice with laterality defects show altered patterns of Pitx2 expression that correlate with changes in the visceral symmetry. The genes which encode Pitx1 and Pitx2 map to human chromosomes 5q31 and 4q25-q26, respectively.May play an important role in development and maintenance of anterior structures. Isoform PTX2C is involved in left-right asymmetry the developing embryo.

Function : Controls cell proliferation in a tissue-specific manner and is involved in morphogenesis. During embryonic development, exerts a role in the expansion of muscle progenitors. May play a role in the proper localization of asymmetric organs such as the heart and stomach. Isoform PTX2C is involved in left-right asymmetry the developing embryo.

Subcellular Location : Nucleus.

Post-translational modifications : Phosphorylation at Thr-90 impairs its association with the CCND1 mRNA-stabilizing complex thus shortening the half-life of CCND1.

Defects in PITX2 are the cause of iridogoniodysgenesis type 2 (IRID2) [MIM:137600]; also known as iridogoniodysgenesis syndrome 2 (IGDS2). It is an autosomal dominant inherited disease.

Defects in PITX2 are a cause of Peters anomaly (PAN) [MIM:604229]. It is a congenital defect of the anterior chamber of the eye.

Defects in PITX2 are associated with ring dermoid of cornea (RDC) [MIM:180550]. RDC is an autosomal dominantly inherited syndrome characterized by bilateral annular limbal dermoids with corneal and conjunctival extension.

Similarity : Belongs to the paired homeobox family. Bicoid subfamily.

Contains 1 homeobox DNA-binding domain.

Involvement in disease;

Defects in PITX2 are the cause of Axenfeld-Rieger syndrome type 1 (RIEG1); also known as Rieger syndrome type 1. RIEG1 is an autosomal dominant defect characterized by hypodontia (partial anodontia), anal stenosis, hypertelorism, mental deficiency, agenesis of the facial bones, with malformation of the anterior chamber of the eye.

Defects in PITX2 are the cause of iridogoniodysgenesis type 2 (IRID2); also known as iridogoniodysgenesis syndrome 2 (IGDS2). It is an autosomal dominant inherited disease.

Defects in PITX2 are a cause of Peters anomaly (PAN). It is a congenital defect of the anterior chamber of the eye.

Defects in PITX2 are associated with ring dermoid of cornea (RDC). RDC is an autosomal dominantly inherited syndrome characterized by bilateral annular limbal dermoids with corneal and conjunctival extension.

抗體的鑒定：

1）成對樣同源結構域轉錄因子2抗體說明書 抗體的效價鑒定：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。不同的抗原制備的抗體,要求的效價不一。鑒定效價的方法很多,包括有試管凝集反應,瓊脂擴散試驗,酶聯(lián)免疫吸附試驗等。常用的抗原所制備的抗體一般都有約成的鑒定效價的方法,以資比較。如制備抗抗體的效價,一般就采用瓊脂擴散試驗來鑒定。

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

如果所用抗原濃度IC50濃度為pg/管,而一些近似抗原物質的IC50濃度幾乎是無窮大時,表示這一抗血清與其他抗原物質的交叉反應率近似為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,抗體分子的結合位點與抗原決定簇之間立體構型的合適度決定的。有助于維持抗原抗體復合物穩(wěn)定的分子間力有氫鍵,疏水鍵,側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?？贵w親和力的測定對抗體的篩選,確定抗體的用途,驗證抗體的均一性等均有重要意義。

Anti-Phospho-FHIT (Tyr114) /FITC 熒光素標記抗磷酸化脆性組氨酸三聯(lián)體抗體IgGMulti-class antibodies規(guī)格： 0.2ml

Anti-Phospho-NFKBp65 (Ser276)/FITC 熒光素標記磷酸化細胞核因子NF-κB p65抗體IgGMulti-class antibodies規(guī)格： 0.2ml

Rhesus antibody Rh BubR1 有絲分裂檢驗點蛋白BubR1抗體 規(guī)格 0.2ml

AVPR2(arginine vasopressin receptor 2) 精酸加壓素受體2抗原 0.5mg

HOOK1 英文名稱： HOOK1蛋白抗體 0.2ml

Rhesus antibody Rh RNF126 環(huán)指蛋白126抗體 規(guī)格 0.2ml

Anti-Phospho-NFKBp65 (Ser276)/FITC 熒光素標記磷酸化細胞核因子NF-κB p65抗體IgGMulti-class antibodies規(guī)格： 0.2ml

BrdU(Human Bromodeoxyuridine) ELISA Kit 人溴脫氧核苷尿嘧啶Multi-class antibodies規(guī)格： 48T

Anti-PIWIL1 piwi樣1蛋白抗體Multi-class antibodies規(guī)格： 0.1ml

Rhesus antibody Rh HIPK3 Fas相互作用蛋白激酶3抗體 規(guī)格 0.2ml

OVA sIgG(Human ovalbumin specific IgG) ELISA Kit 人卵清蛋白特異性IgG 96T

STK18 英文名稱： 絲酸/蘇酸蛋白激酶18 0.2ml

Connexin-37 英文名稱： 間隙連接蛋白37抗體 0.1ml

Anti-PIWIL1 piwi樣1蛋白抗體Multi-class antibodies規(guī)格： 0.1ml

PLAP(Human Placental alkaline pkosphatase) ELISA Kit 人胎盤堿性磷酸酶Multi-class antibodies規(guī)格： 48T

Anti-Phospho-NPM (Thr95) 磷酸化核仁磷酸蛋白抗體Multi-class antibodies規(guī)格： 0.1ml

Rhesus antibody Rh IGSF21 免疫球蛋白超家族成員21抗體 規(guī)格 0.2ml

AsAb ELISA Kit 大鼠抗抗體 96T

Phospho-PTEN(Ser385) 英文名稱： 磷酸化抑制基因PTEN抗體 0.1ml

CKIP-1 英文名稱： 酪蛋白激酶2相互作用蛋白1抗體 0.2ml

Anti-Phospho-NPM (Thr95) 磷酸化核仁磷酸蛋白抗體Multi-class antibodies規(guī)格： 0.1ml

CL-0456TM4(正常小鼠Sertoli細胞)5×106cells/瓶×2

SIGIRR Others Human 人 SIGIRR / TIR8 人細胞裂解液 (陽性對照)

人膀胱基質成纖維細胞RNAHBdSF miRNA5 μg

T24細胞，人膀胱移行細胞癌細胞 大鼠細胞(wistar 大鼠),CBRH7919細胞 RN-c, 大鼠皮質神經(jīng)元

Ishikawa(人細胞) 5×106cells/瓶×2

hPC-PL-c 人類胎盤周細胞(hPC-PL) 500,000cells 小鼠巨噬細胞MMa

CL-0454TE-11(人細胞)5×106cells/瓶×2

HA Others H7N9 甲型 H7N9 (A/Shanghai/2/2013) 血凝素 (Hemagglutinin / HA) 人細胞裂解液 (陽性對照)

人膀胱平滑肌細胞RNAHBdSMC miRNA5 μg

兔眼Tenon's囊成纖維細胞;RYTF 細胞，Hep 3B2.1-7細胞 IR983F細胞，大鼠細胞

人男性正常細胞;Hs68

HA Others H5N1 甲型 H5N1 (A/Hong Kong/483/97) 血凝素 (Hemagglutinin / HA) 人細胞裂解液 (陽性對照)

成對樣同源結構域轉錄因子2抗體說明書 CDH13 Others Rat 大鼠 CDH13 / Cadherin-13 / H Cadherin 人細胞裂解液 (陽性對照)

大鼠腎上腺嗜鉻細胞瘤細胞;PC-12 [PC12]

CM-M123小鼠角膜成纖維細胞完全培養(yǎng)基100mL

TU212細胞，人細胞 人臍內皮(具有T24細胞特性),ECV-304細胞 倉鼠卵巢細胞;Lec1

C4-2(人細胞) 5×106cells/瓶×2

MET Others Human 人 c-MET / HGFR 人細胞裂解液 (陽性對照)