RHM1 cDNA ORF clone, Arabidopsis thaliana(thale cress)

Sequence and analysis of chromosome 1 of the plant Arabidopsis thaliana.
Theologis A, Ecker JR, Palm CJ, Federspiel NA, Kaul S, White O, Alonso J, Altafi H, Araujo R, Bowman CL, Brooks SY, Buehler E, Chan A, Chao Q, Chen H, Cheuk RF, Chin CW, Chung MK, Conn L, Conway AB, Conway AR, Creasy TH, Dewar K, Dunn P, Etgu P, Feldblyum TV, Feng J, Fong B, Fujii CY, Gill JE, Goldsmith AD, Haas B, Hansen NF, Hughes B, Huizar L, Hunter JL, Jenkins J, Johnson-Hopson C, Khan S, Khaykin E, Kim CJ, Koo HL, Kremenetskaia I, Kurtz DB, Kwan A, Lam B, Langin-Hooper S, Lee A, Lee JM, Lenz CA, Li JH, Li Y, Lin X, Liu SX, Liu ZA, Luros JS, Maiti R, Marziali A, Militscher J, Miranda M, Nguyen M, Nierman WC, Osborne BI, Pai G, Peterson J, Pham PK, Rizzo M, Rooney T, Rowley D, Sakano H, Salzberg SL, Schwartz JR, Shinn P, Southwick AM, Sun H, Tallon LJ, Tambunga G, Toriumi MJ, Town CD, Utterback T, Van Aken S, Vaysberg M, Vysotskaia VS, Walker M, Wu D, Yu G, Fraser CM, Venter JC, Davis RW
Nature408(6814)816-20(2000 Dec)

GFP::AtRHM1 fusion protein was found to be localized in the cytosol of cotyledon cells and of petiole cells of cotyledon, indicating that AtRHM1 is a cytosol-localized protein. Overexpression resulted in an increase of rhamnose in the leaf cell wall as well as an alteration in galactose and glucose
Title: Overexpression of a cytosol-localized rhamnose biosynthesis protein encoded by Arabidopsis RHM1 gene increases rhamnose content in cell wall.

AtRHM1 is induced at transcriptional level by glucose and the regulatory elements involved in the glucose response are located in the region of -931 bp - -752 bp which contains three G-box motifs.
Title: [Identification of glucose-responsive elements in the promoter of UDP-L-rhamnose biosynthesis gene RHM1 in Arabidopsis thaliana].

A comparison of flavonol profile in RHM knockout mutants indicated that RHM1 plays a major role in supplying UDP-rhamnose for flavonol modification.
Title: Comprehensive flavonol profiling and transcriptome coexpression analysis leading to decoding gene-metabolite correlations in Arabidopsis.

In rol1 mutants of Arabidopsis thaliana, flavonols in the cell are glycosylated, rhamnose biosynthesis is affected, flavonol glycosylation profile is modified, and plant development and cell shape are changed.
Title: The modified flavonol glycosylation profile in the Arabidopsis rol1 mutants results in alterations in plant growth and cell shape formation.

Data show that the Arabidopsis root hair cell wall formation mutant of LRX1 is suppressed by mutations in the RHM1 gene encoding a UDP-L-rhamnose synthase.
Title: The Arabidopsis root hair cell wall formation mutant lrx1 is suppressed by mutations in the RHM1 gene encoding a UDP-L-rhamnose synthase.