凝血酶(凝血因子II)重鏈抗體
產(chǎn)品編號(hào) LM1914R
英文名稱 Thrombin heavy chain
中文名稱 凝血酶(凝血因子II)重鏈抗體
別 名 coagulation factor II; prothrombin; F2; Cf-2; Cf2; FII; F 2; coagulation factor II (thrombin); Coagulation factor II; Coagulation factor II precursor; F2; Factor II; Factor-II; Prothrombin; prothrombin B-chain; PT; serine protease; THRB; THRB_HUMAN; Thrombin; Thrombin heavy chain.
研究領(lǐng)域 心血管 細(xì)胞生物 激酶和磷酸酶 合成與降解
抗體來源 Rabbit
克隆類型 Polyclonal
交叉反應(yīng) Human, Mouse, Rat, Chicken, Pig, Cow, Horse, Rabbit, Fish,
產(chǎn)品應(yīng)用 ELISA=1:500-1000 IHC-P=1:400-800 IHC-F=1:400-800 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.
分 子 量 28/68kDa
細(xì)胞定位 細(xì)胞外基質(zhì) 分泌型蛋白
性 狀 Lyophilized or Liquid
濃 度 1mg/ml
免 疫 原 KLH conjugated synthetic peptide derived from human Thrombin heavy chain:551-622/622
亞 型 IgG
純化方法 affinity purified by Protein A
儲(chǔ) 存 液 0.01M TBS(pH7.4) with 1% BSA, 0.03% Proclin300 and 50% Glycerol.
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.
PubMed PubMed
產(chǎn)品介紹 Thrombin is the final protease in the blood coagulation cascade and serves both pro- and anticoagulant functions through the cleavage of several targets. The ability of thrombin to specifically recognize a wide range of substrates derives from interactions which occur outside of the active site of thrombin. Thrombin possesses two anion binding exosites which mediate many of its interactions with cofactors and substrates, and although many structures of thrombin have been solved, few such interactions have been described in molecular detail. Glycosaminoglycan binding to exosite II of thrombin plays a major role in switching off the procoagulant functions of thrombin by mediating its irreversible inhibition by circulating serpins and by its binding to the endothelial cell surface receptor thrombomodulin.
抗原與抗體的關(guān)系
①抗體和相應(yīng)的抗原結(jié)合后,可以促進(jìn)白細(xì)胞的吞噬作用而將抗原消除,使抗原失去致病作用。
②一種抗體只能抵抗一種抗原,而且一種抗體只能受相應(yīng)的抗原刺激后才能形成。
免疫的功能:
免疫具有三方面的功能:
①防御功能:抵抗抗原的侵入、防止疾病的產(chǎn)生。
②自我穩(wěn)定:清除體內(nèi)衰老、死亡和損傷的細(xì)胞。
③免疫監(jiān)視:監(jiān)視、識(shí)別和清除體內(nèi)產(chǎn)生的異常細(xì)胞。
特別提醒:過敏反應(yīng):當(dāng)人體抵抗抗原侵入的功能過強(qiáng)時(shí),在過敏原(引起過敏反應(yīng)的物質(zhì),如某些食物、藥物)的刺激下,人體就會(huì)發(fā)生過敏反應(yīng)。
1.抗體名稱容易出錯(cuò)
抗體一般以抗原來命名,名稱核對(duì)時(shí)最簡(jiǎn)單也最容易犯錯(cuò),有些蛋白質(zhì)有不同亞基(HIF-1α、HIF-1β);有些蛋白質(zhì)有不同磷酸化狀態(tài),例如EGFR和p-EGFR的區(qū)別,等等。
除了蛋白質(zhì)的名稱外,有其他后綴。
2.多抗和單抗不同
單抗上面介紹過了,而多抗(polyclonal antibodies)一般用兔子、山羊等大型動(dòng)物,因?yàn)槎嗫故侵苯訌难褐屑兓崛〕鰜淼?,而不像單抗是用?xì)胞培養(yǎng)出來的。
單克隆抗體的優(yōu)點(diǎn)是產(chǎn)量持續(xù)穩(wěn)定、特異性較高、但靈敏度不如多抗。如果對(duì)抗體的特異性要求高,用量較大或需要長(zhǎng)期使用一致的抗體,制備的抗體應(yīng)用要求多(WB/IP/IF/ICC等),可以選擇單克隆抗體。
多抗的特異性較差,存在批間差(因?yàn)橥米拥难环殴鈷斓袅耍窖蚩梢猿D牮B(yǎng)著,放點(diǎn)血出來,在養(yǎng)幾天再放血,好殘忍),易造成背景,例如在WB中有雜帶,在IHC中背景較深等等。但由于多抗識(shí)別多個(gè)抗原表位,對(duì)于豐度偏低的蛋白也更容易檢出。