Q0T9J5 ULAF_ECOL5 L-ribulose-5-phosphate 4-epimerase UlaF 5.1.3.4 L-ascorbate utilization protein F Phosphoribulose isomerase ulaF ECP_4443 Escherichia coli O6:K15:H31 (strain 536 / UPEC) Bacteria Pseudomonadati Pseudomonadota Gammaproteobacteria Enterobacterales Enterobacteriaceae Escherichia NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA] 536 / UPEC Catalyzes the isomerization of L-ribulose 5-phosphate to D-xylulose 5-phosphate. Is involved in the anaerobic L-ascorbate utilization. L-ribulose 5-phosphate = D-xylulose 5-phosphate Zn(2+) Binds 1 zinc ion per subunit. Cofactor degradation; L-ascorbate degradation; D-xylulose 5-phosphate from L-ascorbate: step 4/4. Induced by L-ascorbate. Repressed by UlaR. Belongs to the aldolase class II family. AraD/FucA subfamily. Carbohydrate metabolism Isomerase Metal-binding Zinc substrate substrate substrate Zn(2+) Zn(2+) Zn(2+) Zn(2+) MQKLKQQVFEANMDLPHYGLVTFTWGNVSAIDRERGLVVIKPSGVAYETMKADDMVVVDMSGNVVEGEYRPSSDTATHLELYRRYPSLGGIVHTHSTHATAWAQAGLAIPALGTTHADYFFGDIPCTRGLSEEEVQGEYELNTGKVIIETLGDAEPLHTPGIVVYQHGPFAWGKDAHDAVHNAVVMEEVAKMAWIARSINPQLNHIDSFLMNKHFMRKHGPNAYYGQK Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms Distributed under the Creative Commons Attribution (CC BY 4.0) License