ID 2.4.1.243 DE 6(G)-fructosyltransferase. AN 6(G)-FFT. AN 6(G)-fructotransferase. AN 6(G)-FT. AN fructan:fructan 6(G)-fructosyltransferase. CA [1-beta-D-fructofuranosyl-(2->1)-]m+1 alpha-D-glucopyranoside + [1-beta- CA D-fructofuranosyl-(2->1)-]n+1 alpha-D-glucopyranoside = [1-beta-D- CA fructofuranosyl-(2->1)-]m alpha-D-glucopyranoside + [1-beta-D- CA fructofuranosyl-(2->1)-]n+1 beta-D-fructofuranosyl-(2->6)-alpha-D- CA glucopyranoside (m > 0, n >= 0). CC -!- This enzyme catalyzes the transfer of the terminal (2->1)-linked CC beta-D-fructosyl group of a mono- or oligosaccharide substituent on CC O-1 of the fructose residue of sucrose onto O-6 of its glucose CC residue. CC -!- For example, if 1-kestose [1(F)-(beta-D-fructofuranosyl)sucrose] is CC both the donor and recipient in the reaction shown above, i.e., if m CC = 1 and n = 1, then the products will be sucrose and 6(G)-di-beta-D- CC fructofuranosylsucrose. CC -!- In this notation, the superscripts F and G are used to specify CC whether the fructose or glucose residue of the sucrose carries the CC substituent; alternatively, this may be indicated by the presence CC and/or absence of primes. CC -!- Sucrose cannot be a donor substrate in the reaction (i.e. m cannot be CC zero) and inulin cannot act as an acceptor. CC -!- Side reactions catalyzed are transfer of a beta-D-fructosyl group CC between compounds of the structure 1(F)-(1-beta-D- CC fructofuranosyl)m-6(G)-(1-beta-D-fructofuranosyl)n sucrose, where m CC >= 0 and n = 1 for the donor, and m >= 0 and n >= 0 for the acceptor. DR P92916, GFT_ALLCE ; Q5FC15, GFT_ASPOF ; //