優(yōu)點如下：

1、快速簡便：全程約50分鐘，可測100例左右樣本。

2、取樣量微：本法取手指或耳垂等末梢血20ul～50ul即可測紅細(xì)胞中的SOD，只需2ml靜脈血可測白細(xì)胞中的SOD及血小板中SOD，只需50mg左右組織就可測組織勻漿、胞漿中的SOD，0.2g組織可測線粒體及微粒體中的SOD。

3、靈敏度高：IC50=0.05g/ml，是鄰苯三酚法的18倍。

4、穩(wěn)定性好：試劑盒2～8℃存放6個月有效。

5、再現(xiàn)性好：變異系數(shù)CV=1.7%。

6、回收試驗： X =103.3%。

7、受外界影響因素小：干擾因素少，重復(fù)性強(qiáng)。

8、測試面廣：可測動物血液、組織、各種體液、灌流液等、各種培養(yǎng)細(xì)胞、植物組織、各種水產(chǎn)以及化妝品、保健品等，效果均佳。

產(chǎn)品參數(shù)：

特點：

       1、優(yōu)化設(shè)計的實驗方案，1小時即可完成

       2、靈敏度高，操作便捷

       3、試劑盒提供檢測所需的全套試劑 

操作步驟(僅供參考)：  

1.配制65mM H2O2基液：本試劑盒提供的H2O2基液中的H2O2濃度約為1M。由于過氧化氫不是非常穩(wěn)定，使用前需自行測定過氧化氫的實際濃度。把濃度約為1M的H2O2基液用本試劑盒提供的CAT Assay buffer稀釋100倍，使H2O2基液中的H2O2濃度約為10mM。

2.準(zhǔn)備樣品：  

a,細(xì)胞或組織樣品：取恰當(dāng)細(xì)胞或組織進(jìn)行裂解，可以采用Leagene Western及IP 細(xì)胞裂解液，如果有必要需進(jìn)行適當(dāng)勻漿，低速離心取上清，-70℃凍存，用于CAT的檢測。  

b,血漿、血清和尿液樣品：血漿、血清按照常規(guī)方法制備，用生理鹽水10倍稀釋后， 可以直接用于本試劑盒的測定，尿液通常也可以直接用于測定，-70℃凍存，用于CAT的檢測。  

c,全血樣品：收集適量的全血(whole blood)至一抗凝管內(nèi)，顛倒混勻。取100μl全 血凍融一次，用CAT Assay buffer1000倍后進(jìn)行CAT檢測。

d,血液中的紅細(xì)胞裂解液：用抗凝管收集血液，顛倒混勻。取至少500μl全血4℃ 3000g離心5min，棄上清，沉淀用預(yù)冷的生理鹽水洗滌3次。  

e,高活性樣品：如果樣品中含有較高活性的CAT，可以使用CAT Assay buffer稀釋。

f,(選做)樣品準(zhǔn)備完畢后可以用BCA蛋白濃度測定試劑盒測定蛋白濃度，以便于后續(xù) 計算單位蛋白重量組織或細(xì)胞內(nèi)的CAT含量。  

3、 CAT檢測：按照下表設(shè)置空白管、自身對照管、測定管，溶液應(yīng)按照順序依次加入，并 注意避免產(chǎn)生氣泡。如果樣品中的酶活性過高，可以減少樣品用量或適當(dāng)稀釋后再進(jìn)行測定。樣品的檢測能設(shè)置平行孔。

4、分光光度計檢測405nm處吸光度，分光光度計比色杯光徑0.5cm。如果沒有分光光度計，亦可用酶標(biāo)儀檢測，但如果有條件，盡量采用分光光度計檢測。蒸餾水調(diào)零，讀取各管吸光度值。一般應(yīng)數(shù)小時內(nèi)檢測完畢。

樣品制備：

1）. 直接或稀釋使用清亮無色中性液體樣品，體積可達(dá)2.000ml。

2）. 過濾混濁溶液。

3）. 除去樣品中的CO 2 （測試盒說明書過過濾）。

4 ）. 測試盒說明書過加氫氧化鉀或氫氧化鈉將酸性樣品的PH值調(diào)至8.0。

5 ）. 調(diào)整酸性淺色樣品的PH值至8.0，孵育約15分鐘。

6 ）. 用空白樣品做對照測定有色樣品（如有必要調(diào)整PH值至8.0）。

7 ）. 用PVPP（ 聚乙烯吡咯烷酮）或聚酰胺處理深色未經(jīng)稀釋或體積更大的樣品。

8 ）. 壓碎、攪勻固體或半固體樣品，用水溶解提取。

9 ）. 用Carrez試劑將含有蛋白質(zhì)的樣品去蛋白。

10）.含脂肪的樣品用熱水提取。
交叉反應(yīng)  Human, Mouse, Rat, Dog, Cow, Horse, Sheep

產(chǎn)品類型  一抗    

研究領(lǐng)域  細(xì)胞生物 學(xué) 表觀遺傳學(xué)  

蛋白分子量  predicted molecular weight: 73kDa

性    狀  Lyophilized or Liquid

免 疫 原  KLH conjugated synthetic peptide derived from human OTUB1

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

產(chǎn)品應(yīng)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(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 OTUB1 is a 271 amino acid protein that contains one OTU (ovarian tumor) domain and belongs to the OTU family of predicted cysteine proteases. Expressed as two isoforms (one of which is present throughout the body and the other of which is present only in lymphoid tissues), OTUB1 functions as a hydrolase that can remove ubiquitin residues from target proteins, thereby preventing protein degradation and playing an important role in protein turnover. OTUB1 interacts with GRAIL and, via this interaction, plays a role in the regulation and the induction of T-cell anergy, a phenomenon that occurs when T-cells are rendered unresponsive to their cognate antigens. Due to its interaction with GRAIL, OTUB1 is an important regulator of immune responses in secondary lymphoid organs.

Function : Hydrolase that can specifically remove 'Lys-48'-linked conjugated ubiquitin from proteins and plays an important regulatory role at the level of protein turnover by preventing degradation. Regulator of T-cell anergy, a phenomenon that occurs when T-cells are rendered unresponsive to antigen rechallenge and no longer respond to their cognate antigen. Acts via its interaction with RNF128/GRAIL, a crucial inductor of CD4 T-cell anergy. Isoform 1 destabilizes RNF128, leading to prevent anergy. In contrast, isoform 2 stabilizes RNF128 and promotes anergy. Surprisingly, it regulates RNF128-mediated ubiquitination, but does not deubiquitinate polyubiquitinated RNF128. Deubiquitinates estrogen receptor alpha (ESR1). Mediates deubiquitination of 'Lys-48'-linked polyubiquitin chains, but not 'Lys-63'-linked polyubiquitin chains. Not able to cleave di-ubiquitin. Also capable of removing NEDD8 from NEDD8 conjugates, but with a much lower preference compared to 'Lys-48'-linked ubiquitin.

Plays a key non-catalytic role in DNA repair regulation by inhibiting activity of RNF168, an E3 ubiquitin-protein ligase that promotes accumulation of 'Lys-63'-linked histone H2A and H2AX at DNA damage sites. Inhibits RNF168 independently of ubiquitin thioesterase activity by binding and inhibiting UBE2N/UBC13, the E2 partner of RNF168, thereby limiting spreading of 'Lys-63'-linked histone H2A and H2AX marks. Inhibition occurs by binding to free ubiquitin: free ubiquitin acts as an allosteric regulator that increases affinity for UBE2N/UBC13 and disrupts interaction with UBE2V1. The OTUB1-UBE2N/UBC13-free ubiquitin complex adopts a configuration that mimics a cleaved 'Lys48'-linked di-ubiquitin chain.
甜菜堿含量測檢測試劑盒活性依賴性神經(jīng)保護(hù)因子檢測試劑盒三(4-基) 97%S(-)-2-甲基-1-丁 98%

饑餓素檢測試劑盒烯酰氯, 96%,含~0.05% 噻吩穩(wěn)定劑D-脯氨酸甲酯鹽酸鹽 97%

肌鈣蛋白I檢測試劑盒乙酰氯 AR,98.5%吡啶-N-氧化物 95%

肌鈣蛋白T檢測試劑盒正丁酰氯  98%(S)-(-)-1, 2, 4-丁三 98%

血肌酐檢測試劑盒氯代異烷 CP,97%L-絲氨酸乙酯鹽酸鹽 99%

肌紅蛋白檢測試劑盒氯代異烷 GR,99%D-色氨 97%

肌腱蛋白R檢測試劑盒氯乙酰氯 98%1-(2,4,6-三異基苯基磺酰)咪唑  98%