Recombinant Escherichia coli CRISPR-associated endonuclease Cas1 (ygbT)

中文名稱：

大腸桿菌ygbT重組蛋白
貨號：

CSB-YP671609ENV
說明書：

MSDS Datasheet
規格：
來源：

Yeast
其他：

中文名稱：

大腸桿菌ygbT重組蛋白
貨號：

CSB-EP671609ENV
說明書：

MSDS Datasheet
規格：
來源：

E.coli
其他：

中文名稱：

大腸桿菌ygbT重組蛋白
貨號：

CSB-EP671609ENV-B
說明書：

MSDS Datasheet
規格：
來源：

E.coli
共軛：

Avi-tag Biotinylated
E. coli biotin ligase (BirA) is highly specific in covalently attaching biotin to the 15 amino acid AviTag peptide. This recombinant protein was biotinylated in vivo by AviTag-BirA technology, which method is BriA catalyzes amide linkage between the biotin and the specific lysine of the AviTag.
其他：

中文名稱：

大腸桿菌ygbT重組蛋白
貨號：

CSB-BP671609ENV
說明書：

MSDS Datasheet
規格：
來源：

Baculovirus
其他：

中文名稱：

大腸桿菌ygbT重組蛋白
貨號：

CSB-MP671609ENV
說明書：

MSDS Datasheet
規格：
來源：

Mammalian cell
其他：

產品詳情
產品評價
靶點詳情

產品詳情

純度：

>85% (SDS-PAGE)
基因名：

ygbT
Uniprot No.：

Q46896
別名：

ygbT; cas1; b2755; JW2725; CRISPR-associated endonuclease Cas1; EC 3.1.-.-
種屬：

Escherichia coli (strain K12)
蛋白長度：

full length protein
表達區域：

1-305
氨基酸序列

MTWLPLNPIP LKDRVSMIFL QYGQIDVIDG AFVLIDKTGI RTHIPVGSVA CIMLEPGTRV SHAAVRLAAQ VGTLLVWVGE AGVRVYASGQ PGGARSDKLL YQAKLALDED LRLKVVRKMF ELRFGEPAPA RRSVEQLRGI EGSRVRATYA LLAKQYGVTW NGRRYDPKDW EKGDTINQCI SAATSCLYGV TEAAILAAGY APAIGFVHTG KPLSFVYDIA DIIKFDTVVP KAFEIARRNP GEPDREVRLA CRDIFRSSKT LAKLIPLIED VLAAGEIQPP APPEDAQPVA IPLPVSLGDA GHRSS
蛋白標簽：

Tag?type?will?be?determined?during?the?manufacturing?process.

The tag type will be determined during production process. If you have specified tag type, please tell us and we will develop the specified tag preferentially.
產品提供形式：

Lyophilized powder
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.
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：

Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
Note: All of our proteins are default shipped with normal blue ice packs, if you request to ship with dry ice, please communicate with us in advance and extra fees will be charged.
注意事項：

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

Please contact us to get it.

產品評價

靶點詳情

功能：

CRISPR (clustered regularly interspaced short palindromic repeat), is an adaptive immune system that provides protection against mobile genetic elements (viruses, transposable elements and conjugative plasmids). CRISPR clusters contain sequences complementary to antecedent mobile elements and target invading nucleic acids. CRISPR clusters are transcribed and processed into CRISPR RNA (crRNA). The Cas1-Cas2 complex is involved in CRISPR adaptation, the first stage of CRISPR immunity, being required for the addition/removal of CRISPR spacers at the leader end of the CRISPR locus. The Cas1-Cas2 complex introduces staggered nicks into both strands of the CRISPR array near the leader repeat and joins the 5'-ends of the repeat strands with the 3'-ends of the new spacer sequence. Spacer DNA integration requires supercoiled target DNA and 3'-OH ends on the inserted (spacer) DNA and probably initiates with a nucleophilic attack of the C 3'-OH end of the protospacer on the minus strand of the first repeat sequence. Expression of Cas1-Cas2 in a strain lacking both genes permits spacer acquisition. Non-specifically binds DNA; the Cas1-Cas2 complex preferentially binds CRISPR-locus DNA. Highest binding is seen to a dual forked DNA complex with 3'-overhangs and a protospacer-adjacent motif-complement specifically positioned. The protospacer DNA lies across a flat surface extending from 1 Cas1 dimer, across the Cas2 dimer and contacting the other Cas1 dimer; the 23 bp-long ds section of the DNA is bracketed by 1 Tyr-22 from each of the Cas1 dimers. Cas1 cuts within the 3'-overhang, to generate a 33-nucleotide DNA that is probably incorporated into the CRISPR leader by a cut-and-paste mechanism. Cas1 alone endonucleolytically cleaves linear ssRNA, ssDNA and short (34 base) dsDNA as well as branched DNA substrates such as Holliday junctions, replication forks and 5'-flap DNA substrates. In vitro catalyzes a concerted transesterification reaction on branched DNA, as would be expected during integration of protospacers into the CRISPR leader sequence; Cas2 is not required in vitro. This reaction requires a 3'-OH group at the branch point. Genetic interactions suggest Cas1 interacts with components of the RecBC and RuvB DNA repair systems.
基因功能參考文獻：
1. in Escherichia coli cells undergoing primed adaptation, spacer-sized fragments of foreign DNA are associated with Cas1. PMID: 28204574
2. Cas1 from both Escherichia coli and Sulfolobus solfataricus display sequence specific activity, with a clear preference for the nucleotides flanking the integration site at the leader-repeat 1 boundary of the CRISPR locus. PMID: 26284603
3. CRISPR-Cas functions by integrating phage sequences into CRISPR loci on the host genome. PMID: 25772450
4. These results show that YgbT belongs to a novel, structurally distinct family of nucleases acting on branched DNAs and suggest that, in addition to antiviral immunity, at least some components of the CRISPR-Cas system have a function in DNA repair. PMID: 21219465
亞細胞定位：

Cytoplasm.
蛋白家族：

CRISPR-associated endonuclease Cas1 family
數據庫鏈接：

KEGG: ecj:JW2725

STRING: 316385.ECDH10B_2923