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| Enzyme Name | | Swiss-prot | KEGG |
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| Q9Z1N4 |
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| Protein name | 3''(2''),5''-bisphosphate nucleotidase 1 | 3'(2'),5'-bisphosphate nucleotidase (EC 3.1.3.7)phosphoadenylate 3'-nucleotidase (EC 3.1.3.7)3'-phosphoadenylylsulfate 3'-phosphatase (EC 3.1.3.7)phosphoadenylate 3'-nucleotidase (EC 3.1.3.7)3'(2'),5'-bisphosphonucleoside 3'(2')-phosphohydrolase (EC 3.1.3.7)inositol-1,4-bisphosphate 1-phosphatase (EC 3.1.3.57)inositol-polyphosphate 1-phosphatase (EC 3.1.3.57) |
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| Synonyms | EC 3.1.3.7Bisphosphate 3''-nucleotidase 1PAP-inositol-1,4-phosphatasePIPscHAL2 analogous 3 |
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| Swiss-prot:Accession Number | Q9Z1N4 |
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| Entry name | BPNT1_RAT |
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| Activity | Adenosine 3'',5''-bisphosphate + H(2)O = adenosine 5''-phosphate + phosphate. |
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| Subunit |
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| Subcellular location |
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| Cofactor | Magnesium. |
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| Cofactors | Substrates | Products |
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| KEGG-id | C00305 | C00054 | C00053 | C01220 | C01243 | C00001 | C00009 | C00020 | C00224 | C03546 | C04063 |
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| E.C. | 3.1.3.7,3.1.3.57 | 3.1.3.7 | 3.1.3.7 | 3.1.3.57 | 3.1.3.57 | 3.1.3.7,3.1.3.57 | 3.1.3.7,3.1.3.57 | 3.1.3.7 | 3.1.3.7 | 3.1.3.57 | 3.1.3.57 |
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| Compound | Magnesium | Adenosine 3',5'-bisphosphate | 3'-Phosphoadenylylsulfate | D-myo-Inositol 1,4-bisphosphate | 1D-myo-Inositol 1,3,4-trisphosphate | H2O | Orthophosphate | Adenosine 5'-phosphate | Adenylylsulfate | D-myo-Inositol 4-phosphate | D-myo-Inositol 3,4-bisphosphate |
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| Type | divalent metal (Ca2+, Mg2+) | amine group,nucleotide | amine group,nucleotide,sulfate group | carbohydrate,phosphate group/phosphate ion | carbohydrate,phosphate group/phosphate ion | H2O | phosphate group/phosphate ion | amine group,nucleotide | amine group,nucleotide,sulfate group | carbohydrate,phosphate group/phosphate ion | carbohydrate,phosphate group/phosphate ion |
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| 1jp4A01 |  | Bound:3x_MG | Unbound | Unbound | Unbound | Unbound |
| Bound:PO4 | Unbound | Unbound | Unbound | Unbound |
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| 1jp4A02 |  | Unbound | Unbound | Unbound | Unbound | Unbound |
| Unbound | Bound:AMP | Unbound | Unbound | Unbound |
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| Active-site residues | | resource |
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| PDB;1jp4 & Swiss-prot;Q9Z1N4 & literature [9] | | pdb | Catalytic residues | Cofactor-binding residues | Main-chain involved in catalysis |
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| 1jp4A01 |  | ASP 51;THR 122
| GLU 74(Magnesium-1 & -3);ASP 117(Magnesium-1 & -2);VAL 119(Magnesium-1);ASP 120(Magnesium-2)
| GLY 121;THR 122
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| 1jp4A02 |  |
| ASP 247(Magnesium-2)
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| References for Catalytic Mechanism | | References | Sections | No. of steps in catalysis |
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| [8] | Fig.3, p.1092 |
| | [9] | Fig.5, p.681-682 |
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| references | | [1] |
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| Medline ID | 95034747 |
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| PubMed ID | 7947723 |
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| Journal | Biochemistry |
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| Year | 1994 |
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| Volume | 33 |
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| Pages | 13164-71 |
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| Authors | York JD, Ponder JW, Chen ZW, Mathews FS, Majerus PW |
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| Title | Crystal structure of inositol polyphosphate 1-phosphatase at 2.3-A resolution. |
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| [2] |
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| PubMed ID | 7946962 |
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| Journal | Cell Signal |
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| Year | 1994 |
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| Volume | 6 |
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| Pages | 355-62 |
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| Authors | Luttrell BM |
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| Title | Cellular actions of inositol phosphates and other natural calcium and magnesium chelators. |
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| [3] |
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| PubMed ID | 8107142 |
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| Journal | J Mol Biol |
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| Year | 1994 |
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| Volume | 236 |
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| Pages | 584-9 |
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| Authors | York JD, Chen ZW, Ponder JW, Chauhan AK, Mathews FS, Majerus PW |
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| Title | Crystallization and initial X-ray crystallographic characterization of recombinant bovine inositol polyphosphate 1-phosphatase produced in Spodoptera frugiperda cells. |
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| [4] |
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| PubMed ID | 7493934 |
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| Journal | J Biol Chem |
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| Year | 1995 |
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| Volume | 270 |
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| Pages | 29105-10 |
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| Authors | Peng Z, Verma DP |
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| Title | A rice HAL2-like gene encodes a Ca(2+)-sensitive 3'(2'),5'-diphosphonucleoside 3'(2')-phosphohydrolase and complements yeast met22 and Escherichia coli cysQ mutations. |
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| [5] |
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| PubMed ID | 7761465 |
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| Journal | Proc Natl Acad Sci U S A |
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| Year | 1995 |
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| Volume | 92 |
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| Pages | 5149-53 |
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| Authors | York JD, Ponder JW, Majerus PW |
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| Title | Definition of a metal-dependent/Li(+)-inhibited phosphomonoesterase protein family based upon a conserved three-dimensional core structure. |
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| [6] |
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| PubMed ID | 9762363 |
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| Journal | Adv Enzyme Regul |
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| Year | 1998 |
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| Volume | 38 |
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| Pages | 365-74 |
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| Authors | York JD, Xiong JP, Spiegelberg B |
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| Title | Nuclear inositol signaling: a structural and functional approach. |
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| [7] |
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| Medline ID | 20123982 |
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| PubMed ID | 10656801 |
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| Journal | J Mol Biol |
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| Year | 2000 |
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| Volume | 295 |
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| Pages | 927-38 |
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| Authors | Albert A, Yenush L, Gil-Mascarell MR, Rodriguez PL, Patel S, Martinez-Ripoll M, Blundell TL, Serrano R |
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| Title | X-ray structure of yeast Hal2p, a major target of lithium and sodium toxicity, and identification of framework interactions determining cation sensitivity. |
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| [8] |
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| PubMed ID | 12126627 |
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| Journal | J Mol Biol |
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| Year | 2002 |
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| Volume | 320 |
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| Pages | 1087-94 |
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| Authors | Patel S, Martinez-Ripoll M, Blundell TL, Albert A |
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| Title | Structural enzymology of Li(+)-sensitive/Mg(2+)-dependent phosphatases. |
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| [9] |
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| Comments | X-RAY CRYSTALLOGRAPHY (1.69 ANGSTROMS) OF 5-308. |
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| PubMed ID | 11812139 |
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| Journal | J Mol Biol |
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| Year | 2002 |
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| Volume | 315 |
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| Pages | 677-85 |
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| Authors | Patel S, Yenush L, Rodriguez PL, Serrano R, Blundell TL |
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| Title | Crystal structure of an enzyme displaying both inositol-polyphosphate-1-phosphatase and 3'-phosphoadenosine-5'-phosphate phosphatase activities: a novel target of lithium therapy. |
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| Related PDB | 1jp4 |
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| Related Swiss-prot | Q9Z1N4 |
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| comments | This enzyme belongs to the inositol monophosphatase family. This enzyme has got both the catalytic activities of phosphoadenylate 3'-nucleotidase (PAPase; EC 3.1.3.7) and inositol-polyphosphate 1-phosphatase (IPPase;EC 3.1.3.57). This enzyme binds three magnesium ions, according to the literature [9]. The mechanism of this enzyme is similar to that of its homologous enzymes (D00148, D00153 & T00053 in EzCatDB).
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| created | updated |
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| 2004-02-19 | 2009-02-26 |
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