Any feedback?
Literature summary for 2.4.1.345 extracted from
- Definition of the first mannosylation step in phosphatidylinositol: Mannoside Synthesis. PimA IS essential for growth of mycobacteria (2002), J. Biol. Chem., 277, 31335-31344.
Application
| Application | Comment | Organism |
|---|---|---|
| analysis | development of a cell-free assay. Membranes from Mycobacterium smegmatis overexpressing the pimA gene incorporate mannose from GDP-[14C]Man into di- and tri-acylated phosphatidylinositol mono-mannosides | Mycolicibacterium smegmatis |
Cloned(Commentary)
| Cloned (Comment) | Organism |
|---|---|
| expression in Escherichia coli | Mycolicibacterium smegmatis |
Localization
| Localization | Comment | Organism | GeneOntology No. | Textmining |
|---|---|---|---|---|
| membrane | sequence contains a putative transmembrane segment, residues 275-298 | Mycolicibacterium smegmatis | 16020 | - |
Molecular Weight [Da]
| Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
|---|---|---|---|
| 40000 | - |
x * 40000, SDS-PAGE | Mycolicibacterium smegmatis |
Natural Substrates/ Products (Substrates)
| Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| GDP-mannose + phosphatidylinositol | Mycolicibacterium smegmatis | involved in the early steps of phosphatidylinositol mannoside synthesis, the synthesis of phosphatidylinositol monomannosides and derived higher phosphatidylinositol mannosides in M. smegmatis appears to be dependent on PimA and essential for growth | GDP + phosphatidyl-(2-O-alpha-D-manno-pyranosyl)-myo-inositol | - |
? |  |
Organism
| Organism | UniProt | Comment | Textmining |
|---|---|---|---|
| Mycolicibacterium smegmatis | - |
- |
- |
| Mycolicibacterium smegmatis | A0QWG6 | - |
- |
| Mycolicibacterium smegmatis ATCC 700084 | A0QWG6 | - |
- |
Substrates and Products (Substrate)
| Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| GDP-alpha-D-mannose + 1-phosphatidyl-1D-myo-inositol | - |
Mycolicibacterium smegmatis | GDP + 2-O-(alpha-D-mannosyl)-1-phosphatidyl-1D-myo-inositol | - |
? | |
| GDP-alpha-D-mannose + 1-phosphatidyl-1D-myo-inositol | - |
Mycolicibacterium smegmatis ATCC 700084 | GDP + 2-O-(alpha-D-mannosyl)-1-phosphatidyl-1D-myo-inositol | - |
? | |
| GDP-mannose + phosphatidylinositol | - |
Mycolicibacterium smegmatis | GDP + phosphatidyl-(2-O-alpha-D-manno-pyranosyl)-myo-inositol | - |
? | |
| GDP-mannose + phosphatidylinositol | involved in the early steps of phosphatidylinositol mannoside synthesis, the synthesis of phosphatidylinositol monomannosides and derived higher phosphatidylinositol mannosides in M. smegmatis appears to be dependent on PimA and essential for growth | Mycolicibacterium smegmatis | GDP + phosphatidyl-(2-O-alpha-D-manno-pyranosyl)-myo-inositol | - |
? | |
| additional information | the PimA enzyme catalyzes the transfer of the first Man residue from GDP-Man to the myo-inositol residue of phosphatidylinositol, yielding diacylated forms of phosphatidylinositol mono-mannoside | Mycolicibacterium smegmatis | ? | - |
? | |
| additional information | the PimA enzyme catalyzes the transfer of the first Man residue from GDP-Man to the myo-inositol residue of phosphatidylinositol, yielding diacylated forms of phosphatidylinositol mono-mannoside | Mycolicibacterium smegmatis ATCC 700084 | ? | - |
? | |
Subunits
| Subunits | Comment | Organism |
|---|---|---|
| ? | x * 40000, SDS-PAGE | Mycolicibacterium smegmatis |
Synonyms
| Synonyms | Comment | Organism |
|---|---|---|
| alpha-D-mannose-alpha(1,2)-phosphatidyl-myoinositol transferase | - |
Mycolicibacterium smegmatis |
| PimA | - |
Mycolicibacterium smegmatis |
| Rv2610c enzyme | - |
Mycolicibacterium smegmatis |
pI Value
| Organism | Comment | pI Value Maximum | pI Value |
|---|---|---|---|
| Mycolicibacterium smegmatis | calculated, N-terminal half of the protein, residues 1-202 | - |
9.5 |
General Information
| General Information | Comment | Organism |
|---|---|---|
| physiological function | PimA is involved in the metabolic pathway producing phosphatidylinositol dimannoside PIM2 and phosphatidylinositol hexamannosidePIM6. Crude extracts from Escherichia coli producing recombinant PimA protein synthesize diacylated phosphatidylinositol mono-mannoside from GDP-[14C]Man and bovine phosphatidylinositol. A conditional mutant is unable to grow at the higher temperature at which the rescue plasmid is lost. The synthesis of phosphatidylinositol mono-mannosides and derived higher phosphatidylinositol mannosides appears to be dependent on PimA and essential for growth | Mycolicibacterium smegmatis |
Use of this online version of BRENDA is free under the CC BY 4.0 license. See terms of use for full details.
Release 2023.1 (January 2023)
Legal
Curated at
Member of
