{"id":2089,"date":"2022-04-04T23:33:17","date_gmt":"2022-04-04T16:33:17","guid":{"rendered":"http:\/\/sibenzyme.com\/product\/fok-i\/"},"modified":"2026-01-11T17:38:25","modified_gmt":"2026-01-11T10:38:25","slug":"fok-i","status":"publish","type":"product","link":"https:\/\/sibenzyme.com\/en\/product\/fok-i\/","title":{"rendered":"Fok I"},"content":{"rendered":"

Recognition site and hydrolysis position<\/strong>:<\/p>\n\n\n\n\n
GGATG(N)9<\/sub><\/td>\nGGATG(N)9<\/sub>\u2191<\/td>\n<\/tr>\n
CCTAC(N)13<\/sub><\/td>\nCCTAC(N)13<\/sub>\u2193<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Source:<\/strong> An E.coli strain that carries the cloned Fok I gene from Flavobacterium okeanokoites
Unit definition:<\/strong>
One unit of the enzyme is the amount required to hydrolyze 1 μg of Lambda DNA in 1 hour at 37°C in a total reaction volume of 50 μl.
Assayed on:<\/strong>
Lambda DNA
Optimal SE-buffer:<\/strong> SE-buffer Y
Enzyme activity (%)<\/strong>:<\/p>\n\n\n\n\n\n
B<\/td>\nG<\/td>\nO<\/td>\nW<\/td>\nY<\/td>\nROSE<\/td>\n<\/tr>\n
50<\/td>\n50<\/td>\n25<\/td>\n25<\/td>\n100<\/td>\n100<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Storage conditions<\/strong>: 10 mM Tris-HCl (pH 7.5); 50 mM NaCl; 0,1 mM EDTA; 1 mM DTT; 200 μg\/ml BSA; 50% glycerol; Store at -20°C.
Ligations<\/strong>:
After 2-fold overdigestion with enzyme more than 95% of the DNA fragments can be ligated and recut.
Non-specific hydrolisis<\/strong>:
No nonspecific activity was detected after incubation of 1 μg of Lambda DNA with 1 u.a. of enzyme for 16 hours at 37°C<\/td>\n<\/tr>\n

Reagents Supplied with Enzyme<\/b><\/td>\n10 X SE-buffer Y
Reagents Supplied with Enzyme<\/strong>:
Methylation sensitivity<\/strong>: not tested
Notes:<\/strong> Overdigestions of > 5 units of Fok I per 1μg of DNA and incubations > 2 hours are not recommended.
References:<\/strong>
Sugisaki, H., Kanazawa, S., Gene 16: 73-78 (1981).<\/p>","protected":false},"excerpt":{"rendered":"

Restriction endonuclease Fok I<\/p>\n","protected":false},"featured_media":58,"template":"","meta":[],"product_brand":[],"product_cat":[23],"product_tag":[],"class_list":{"0":"post-2089","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-re","7":"pa_285b89be-pa_285b89b_2d3edf","8":"pa_4ebaafd1-4e5410d785","9":"pa_50b54da1-pa_50b54da_6e490e","10":"pa_be110261-pa_be11026_383772-2","11":"pa_concentration-pa_concent_8cc665-9","12":"pa_fasovka-pa_fasovka_e7d4b7-4","13":"pa_fasovka-3a4f8ebe60","14":"pa_package-d20caec3b4","15":"pa_package-5dbc98dcc9","16":"pa_site-a6ace5b545","17":"pa_variant-d2203cb123","19":"first","20":"instock","21":"taxable","22":"shipping-taxable","23":"purchasable","24":"product-type-variable","25":"berocket_lgv_grid","26":"berocket_lgv_list_grid"},"_links":{"self":[{"href":"https:\/\/sibenzyme.com\/en\/wp-json\/wp\/v2\/product\/2089","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sibenzyme.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/sibenzyme.com\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sibenzyme.com\/en\/wp-json\/wp\/v2\/media\/58"}],"wp:attachment":[{"href":"https:\/\/sibenzyme.com\/en\/wp-json\/wp\/v2\/media?parent=2089"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/sibenzyme.com\/en\/wp-json\/wp\/v2\/product_brand?post=2089"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/sibenzyme.com\/en\/wp-json\/wp\/v2\/product_cat?post=2089"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/sibenzyme.com\/en\/wp-json\/wp\/v2\/product_tag?post=2089"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}