Sandbox Reserved 1691
From Proteopedia
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Inositol (1,4)-bisphosphate is a substrate that binds in the active site of INPP1D54A. The phosphate <scene name='89/892734/Ligand_view_1/1'>(1-PO4 )</scene> in the substrate serves as a ligand for both the calcium ions- CA1 and CA2.<scene name='89/892734/Important_amino_acid_view_2/1'>The important amino acids</scene>; Glutamic acid (290), Lysine (294), Serine (157), Threonine (158), Glutamic acid (269), and Alanine (291) largely contributed an extensive role in interactions between 1-PO4 and 4-PO4 of the substrate to the active site. <ref> PMID 33172890 </ref> | Inositol (1,4)-bisphosphate is a substrate that binds in the active site of INPP1D54A. The phosphate <scene name='89/892734/Ligand_view_1/1'>(1-PO4 )</scene> in the substrate serves as a ligand for both the calcium ions- CA1 and CA2.<scene name='89/892734/Important_amino_acid_view_2/1'>The important amino acids</scene>; Glutamic acid (290), Lysine (294), Serine (157), Threonine (158), Glutamic acid (269), and Alanine (291) largely contributed an extensive role in interactions between 1-PO4 and 4-PO4 of the substrate to the active site. <ref> PMID 33172890 </ref> | ||
- | Threonine is Amphipathic, which means it has both hydrophilic and hydrophobic parts. Serine, Threonine, and Lysine are Polar. Polar hydrophilic amino acids are important in ligand binding to the substrate because it makes the binding site precisely positioned for hydrogen bonding to the hydroxy and carboxylate groups of the substrate. I found that the Inotisol rings on the end have a lot to do with binding.<scene name='89/892734/The_other_amino_acids_view_3/1'> The other Amino acids</scene> for binding are Thr 312, Lys 270, Ala 291, Asp 156. These key amino acids are important because they participate in hydrogen bonds, hydrophobic, and ionic bonds. | + | Threonine is Amphipathic, which means it has both hydrophilic and hydrophobic parts. Serine, Threonine, and Lysine are Polar. Polar hydrophilic amino acids are important in ligand binding to the substrate because it makes the binding site precisely positioned for hydrogen bonding to the hydroxy and carboxylate groups of the substrate. Or in a different way, The charges have become important for locating or identifying the accessible area that helped the protein function. Moreover, in this article, the motif of enzymes in this family is DPIDxT, (x can be anything) but in this case, the <scene name='89/892734/Lithium_binding_motif/4'>six important catalytic amino acids</scene> D54, E80, E79, D153, D317, and T158. These amino acids hold the metal ions and the metals hold on to the water and substrates. The protein would not function without this holding process. |
+ | I also found that the Inotisol rings on the end have a lot to do with binding.<scene name='89/892734/The_other_amino_acids_view_3/1'> The other Amino acids</scene> for binding are Thr 312, Lys 270, Ala 291, Asp 156. These key amino acids are important because they participate in hydrogen bonds, hydrophobic, and ionic bonds. | ||
<scene name='89/892734/Final_view_of_the_active_site/2'>Final View</scene> of the active site with all the important amino acids | <scene name='89/892734/Final_view_of_the_active_site/2'>Final View</scene> of the active site with all the important amino acids | ||
- | + | <ref>33172890 </ref>. | |
- | + | ||
== Structural highlights == | == Structural highlights == | ||
The protein is 90% transparent. The <scene name='89/892734/Secondary_structure_view_1/1'>secondary structure</scene> contains 77% alpha-helices, 23% beta-sheets. More specific is 13 secondary structural elements of which 10 are alpha helices and 3 are beta-sheets. Alpha helix contains 3 catalytic amino acids, and beta-sheet contains the other one catalytic acid. | The protein is 90% transparent. The <scene name='89/892734/Secondary_structure_view_1/1'>secondary structure</scene> contains 77% alpha-helices, 23% beta-sheets. More specific is 13 secondary structural elements of which 10 are alpha helices and 3 are beta-sheets. Alpha helix contains 3 catalytic amino acids, and beta-sheet contains the other one catalytic acid. |
Revision as of 01:30, 8 December 2021
This Sandbox is Reserved from 10/01/2021 through 01/01//2022 for use in Biochemistry taught by Bonnie Hall at Grand View University, Des Moines, USA. This reservation includes Sandbox Reserved 1690 through Sandbox Reserved 1699. |
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References
- ↑ Hanson, R. M., Prilusky, J., Renjian, Z., Nakane, T. and Sussman, J. L. (2013), JSmol and the Next-Generation Web-Based Representation of 3D Molecular Structure as Applied to Proteopedia. Isr. J. Chem., 53:207-216. doi:http://dx.doi.org/10.1002/ijch.201300024
- ↑ Herraez A. Biomolecules in the computer: Jmol to the rescue. Biochem Mol Biol Educ. 2006 Jul;34(4):255-61. doi: 10.1002/bmb.2006.494034042644. PMID:21638687 doi:10.1002/bmb.2006.494034042644
- ↑ Dollins DE, Xiong JP, Endo-Streeter S, Anderson DE, Bansal VS, Ponder JW, Ren Y, York JD. A Structural Basis for Lithium and Substrate Binding of an Inositide Phosphatase. J Biol Chem. 2020 Nov 10. pii: RA120.014057. doi: 10.1074/jbc.RA120.014057. PMID:33172890 doi:http://dx.doi.org/10.1074/jbc.RA120.014057
- ↑ 33172890