Recombinant Human Sucrase-isomaltase, intestinal (SI), partial

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中文名稱：

人SI重組蛋白
品名簡稱：

Recombinant Human SI protein, partial
貨號：

CSB-EP021285HU(A4)
說明書：

MSDS Datasheet
規格：

￥1836
圖片：
(Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.
其他：

產品詳情
產品評價
相關產品
靶點詳情

產品詳情

純度：

Greater than 85% as determined by SDS-PAGE.
基因名：

SI
Uniprot No.：

P14410
種屬：

Homo sapiens (Human)
蛋白長度：

Partial
來源：

E.coli
分子量：

96.1 kDa
表達區域：

1008-1827aa
氨基酸序列

IKLPSDPISTLRVEVKYHKNDMLQFKIYDPQKKRYEVPVPLNIPTTPISTYEDRLYDVEIKENPFGIQIRRRSSGRVIWDSWLPGFAFNDQFIQISTRLPSEYIYGFGEVEHTAFKRDLNWNTWGMFTRDQPPGYKLNSYGFHPYYMALEEEGNAHGVFLLNSNAMDVTFQPTPALTYRTVGGILDFYMFLGPTPEVATKQYHEVIGHPVMPAYWALGFQLCRYGYANTSEVRELYDAMVAANIPYDVQYTDIDYMERQLDFTIGEAFQDLPQFVDKIRGEGMRYIIILDPAISGNETKTYPAFERGQQNDVFVKWPNTNDICWAKVWPDLPNITIDKTLTEDEAVNASRAHVAFPDFFRTSTAEWWAREIVDFYNEKMKFDGLWIDMNEPSSFVNGTTTNQCRNDELNYPPYFPELTKRTDGLHFRTICMEAEQILSDGTSVLHYDVHNLYGWSQMKPTHDALQKTTGKRGIVISRSTYPTSGRWGGHWLGDNYARWDNMDKSIIGMMEFSLFGMSYTGADICGFFNNSEYHLCTRWMQLGAFYPYSRNHNIANTRRQDPASWNETFAEMSRNILNIRYTLLPYFYTQMHEIHANGGTVIRPLLHEFFDEKPTWDIFKQFLWGPAFMVTPVLEPYVQTVNAYVPNARWFDYHTGKDIGVRGQFQTFNASYDTINLHVRGGHILPCQEPAQNTFYSRQKHMKLIVAADDNQMAQGSLFWDDGESIDTYERDLYLSVQFNLNQTTLTSTILKRGYINKSETRLGSLHVWGKGTTPVNAVTLTYNGNKNSLPFNEDTTNMILRIDLTTHNVTLEEPIEINWS
Note: The complete sequence may include tag sequence, target protein sequence, linker sequence and extra sequence that is translated with the protein sequence for the purpose(s) of secretion, stability, solubility, etc.
If the exact amino acid sequence of this recombinant protein is critical to your application, please explicitly request the full and complete sequence of this protein before ordering.
蛋白標簽：

C-terminal 6xHis-tagged
產品提供形式：

Liquid or Lyophilized powder Warning: in_array() expects parameter 2 to be array, null given in /www/web/cusabio_cn/public_html/caches/caches_template/default/content/show_product_protein.php on line 668
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
緩沖液：

If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol.If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose.
復溶：

We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20℃/-80℃. Our default final concentration of glycerol is 50%. Customers could use it as reference.
儲存條件：

Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
保質期：

The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
貨期：

3-7 business days
注意事項：

Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Datasheet & COA：

Please contact us to get it.

產品評價

靶點詳情

功能：

Plays an important role in the final stage of carbohydrate digestion. Isomaltase activity is specific for both alpha-1,4- and alpha-1,6-oligosaccharides.
基因功能參考文獻：
1. Three biosynthetic phenotypes for the novel SI mutations were identified. The first biosynthetic phenotype was defined by mutants that are intracellularly transported in a fashion similar to wild type SI and with normal, but varying, levels of enzymatic activity. The second biosynthetic phenotype was defined by mutants with delayed maturation and trafficking kinetics and reduced activity. The third is inactive. PMID: 28062276
2. Novel compound heterozygote V577G/C1531W SI mutations, which lead to lack of SI expression in the duodenal brush border, were found in a family with congenital sucrase-isomaltase deficiency. PMID: 27749612
3. A common mutation was found in the sucrase-isomaltase gene, c.273_274delAG, to be responsible for the high prevalence of congenital sucrase-isomaltase deficiency among Inuit people. PMID: 25452324
4. SI mutations result in loss of enzyme function by preventing the biosynthesis of catalytically competent SI at the cell surface in lymphocytic leukemia PMID: 23418305
5. study found four common mutations in the SI gene (3 of the 4 are in the sucrase domain, with 1 in the isomaltase domain) account for 59 percent of clinical symptoms of congenital sucrase-isomaltase deficiency (CSID); the remaining 41 percent were rare events PMID: 23103650
6. investigation of EIS (enzyme-inhibitor-substrate) complex of sucrase: kinetic studies of complex formation/stability; role of complex in prevention of hyperglycemia by L-arabinose PMID: 21165628
7. Core2 O-glycan structure is essential for expression of SI and DDP-IV during intestinal cell differentiation. PMID: 20841351
8. These results suggest that sucrase-isomaltase transcription might be unchanged or lower in maturity-onset diabetes of the young (MODY) type 3, but greater in MODY5. PMID: 15522234
9. phenylalanine cluster is required for shielding a folding determinant in the extracellular domain of SI; substitution of a Q by a P at residue 1098 of sucrase disrupts this determinant and elicits retention of SI(Q1098P) in ER and cis-Golgi PMID: 15944403
10. The sucrase-isomaltase (SI) gene from 11 patients of Hungarian origin with congenital sucrase-isomaltase deficiency was analysed.In six out of the 11 patients the phenotype of CSID could be explained by compound heterozygosity. PMID: 16329100
11. analysis of a mutation which affects an epitope responsible for the apical targeting fidelity of sucrase-isomaltase in congenital sucrase-isomaltase deficiency PMID: 16543230
12. hepatocyte nuclear factor (HNF)-1alpha and HNF-1beta would contribute to constitutive expression of the SI gene in the differentiated state in Caco-2 cells PMID: 16802690
13. glucose regulation of sucrase-isomaltase gene expression was attenuated in HNF-1alphaT539fsdelC cells, but was well maintained in empty vector & HNF-1betaR177X cells.Results suggest that HNF-1alpha participates in glucose regulation of SI gene expression. PMID: 17194452
14. The effects of mutations in the sucrase domain of SIC1229Y and SIF1745C indicate the importance of a direct interaction between isomaltase and sucrose and the role of sucrose as an intermolecular chaperone in the intracellular transport of SI PMID: 19121318
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相關疾病：

Congenital sucrase-isomaltase deficiency (CSID)
亞細胞定位：

Apical cell membrane; Single-pass type II membrane protein. Note=Brush border.
蛋白家族：

Glycosyl hydrolase 31 family
組織特異性：

Expressed in the poorly differentiated crypt cells of the small intestine as well as in the mature villous cells. Expressed at very low levels in the colon.
數據庫鏈接：

HGNC: 10856

OMIM: 222900

KEGG: hsa:6476

STRING: 9606.ENSP00000264382

UniGene: Hs.429596