Type: | Family | Name: | Trichome birefringence/trichome birefringence-like 1/4 |
Description: | Trichome birefringence-like (TBL) proteins are proposed to encode wall poly- saccharidespecific O-acetyltransferases based on the existing data for some members of the TBL family: altered xyloglucan 4 (AXY4/TBL270) and altered xyloglucan 4-like (AXY4L/TBL22), two xyloglucan specific O-acetyltransferases in non-seed tissues and seeds, respectively [, ].This entry includes TBR (Trichome birefringence), TBL1 and TBL4 from Arabidopsis. TBR is the original gene after which this family was named. The tbr-mutant exhibits a defect in cellulose crystallinity in its trichomes and shows alterations in pectin esterification []. Trichome birefringence-like 1 (TBL1) can complement TBR and is therefore functionally equivalent, but it is not expressed in trichomes and may work in different tissue []. | Short Name: | TBR/TBL1/TBL4 |