High impact information on ATSUC9

• The ability of AtSUC9 to transport 10 glucosides was compared directly with that of AtSUC2, HvSUT1 (from barley [Hordeum vulgare]), and ShSUT1 (from sugarcane [Saccharum hybrid]), and results indicate that type I and type II Suc transporters have different substrate specificities [1].
• AtSUC9 (At5g06170), a sucrose (Suc) transporter from Arabidopsis (Arabidopsis thaliana) L [1].
• The mutant phenotype of atsuc9 alleles indicates that AtSUC9 activity leads to a delay in floral transition [1].
• AtSUC9 showed low substrate specificity, similar to AtSUC2 (At1g22710), and transported a wide range of glucosides, including helicin, salicin, arbutin, maltose, fraxin, esculin, turanose, and alpha-methyl-d-glucose [1].
• AtSUC9 protein was localized to the plasma membrane by transient expression in onion (Allium cepa) epidermis [1].

Biological context of ATSUC9

• A fourth sucrose transporter gene, AtSUC9 (At5g06170), which is on the same branch of the AtSUC-phylogenetic tree, shows only slightly less sequence homology [2].
• Plants containing mutations in Suc transporter gene AtSUC9 were found to have an early flowering phenotype under short-day conditions [1].

Associations of ATSUC9 with chemical compounds

• No incorrect splicing and no sequence polymorphism were detected in the cDNAs of AtSUC8 and AtSUC9, which encode functional sucrose transporters and are expressed in floral tissue [2].

Other interactions of ATSUC9

• Finally, promoter-reporter gene plants and T-DNA insertion lines were analyzed for AtSUC8 and AtSUC9 [2].

References