Protein: Cytokinin riboside 5'-monophosphate phosphoribohydrolase LOG (EC 3.2.2.n1) (Protein LONELY GUY) (Q5ZC82)
Organism: Oryza sativa subsp. japonica (Rice)
Function: Cytokinin-activating enzyme working in the direct activation pathway. Controls the shoot meristem activity. Phosphoribohydrolase that converts inactive cytokinin nucleotides to the biologically active free-base forms. Reacts specifically with cytokinin nucleoside 5'-monophosphates, but not with di- or triphosphate.
Subcellular location: Cytoplasm {ECO:0000269|PubMed:17287810}.
Sequence: MAMEAAAERSAGAGAAATAAPESGGGGAGERRSRFRRICVYCGSAKGRKASYQDAAVELGKELVERGIDLVYGGGSIGLMGLVSHAVHDGGRHVIGVIPKSLMPREVTGEPVGEVRAVSGMHERKAEMARFADAFIALPGGYGTLEELLEVITWAQLGIHKKPVGLLNVDGFYDPFLSFIDMAVSEGFIAEDARRIIISAPTARELVLKLEEYVPEYEVGLVWDDQMPHSFAPDLETRITSS
InterPro domains: - IPR005269: Cytokinin riboside 5'-monophosphate phosphoribohydrolase LOG (family) [37-213]
- IPR031100: LOG family (family) [80-209]
Interaction partners: - Nitrate reductase
- Nitrate reductase
- Nitrate reductase 1
- protein-serine/threonine phosphatase
- Os04g0589400 protein
- Small ribosomal subunit protein uS2c
- Os01g0220300 protein
- Os06g0255200 protein
- Os02g0102400 protein
- Small ribosomal subunit protein mS29
Gene Ontology annotations:
Molecular Function (MF): GO:0003674 (molecular function), GO:0003824 (catalytic activity), GO:0016787 (hydrolase activity), GO:0016798 (hydrolase activity, acting on glycosyl bonds), GO:0004553 (hydrolase activity, hydrolyzing O-glycosyl compounds)
Biological Process (BP): GO:0008150 (biological process), GO:0008152 (metabolic process), GO:0009987 (cellular process), GO:0009058 (biosynthetic process), GO:0044237 (cellular metabolic process), GO:0044281 (small molecule metabolic process), GO:0006807 (nitrogen compound metabolic process), GO:0071704 (organic substance metabolic process), GO:0044238 (primary metabolic process), GO:1901360 (organic cyclic compound metabolic process), GO:1901564 (organonitrogen compound metabolic process), GO:1901576 (organic substance biosynthetic process), GO:0006139 (nucleobase-containing compound metabolic process), GO:0046483 (heterocycle metabolic process), GO:0055086 (nucleobase-containing small molecule metabolic process), GO:0019637 (organophosphate metabolic process), GO:0044249 (cellular biosynthetic process), GO:0006725 (cellular aromatic compound metabolic process), GO:0034641 (cellular nitrogen compound metabolic process), GO:1901135 (carbohydrate derivative metabolic process), GO:0006793 (phosphorus metabolic process), GO:1901566 (organonitrogen compound biosynthetic process), GO:1901362 (organic cyclic compound biosynthetic process), GO:0006753 (nucleoside phosphate metabolic process), GO:0019438 (aromatic compound biosynthetic process), GO:0019693 (ribose phosphate metabolic process), GO:0018130 (heterocycle biosynthetic process), GO:0090407 (organophosphate biosynthetic process), GO:0044271 (cellular nitrogen compound biosynthetic process), GO:0006796 (phosphate-containing compound metabolic process), GO:0072521 (purine-containing compound metabolic process), GO:1901137 (carbohydrate derivative biosynthetic process), GO:0034654 (nucleobase-containing compound biosynthetic process), GO:0009259 (ribonucleotide metabolic process), GO:0009117 (nucleotide metabolic process), GO:0046390 (ribose phosphate biosynthetic process), GO:0006163 (purine nucleotide metabolic process), GO:0034032 (purine nucleoside bisphosphate metabolic process), GO:0072522 (purine-containing compound biosynthetic process), GO:1901293 (nucleoside phosphate biosynthetic process), GO:0033865 (nucleoside bisphosphate metabolic process), GO:0015936 (coenzyme A metabolic process), GO:0009165 (nucleotide biosynthetic process), GO:0006164 (purine nucleotide biosynthetic process), GO:0009150 (purine ribonucleotide metabolic process), GO:0009260 (ribonucleotide biosynthetic process), GO:0034033 (purine nucleoside bisphosphate biosynthetic process), GO:0033866 (nucleoside bisphosphate biosynthetic process), GO:0033875 (ribonucleoside bisphosphate metabolic process), GO:0009152 (purine ribonucleotide biosynthetic process), GO:0015937 (coenzyme A biosynthetic process), GO:0034030 (ribonucleoside bisphosphate biosynthetic process)
Cellular Component (CC): GO:0005575 (cellular component), GO:0110165 (cellular anatomical entity), GO:0005622 (intracellular anatomical structure), GO:0043226 (organelle), GO:0005737 (cytoplasm), GO:0043229 (intracellular organelle), GO:0043227 (membrane-bounded organelle), GO:0043231 (intracellular membrane-bounded organelle), GO:0005634 (nucleus)