Sandbox Reserved 1761: Difference between revisions

From Proteopedia
Jump to navigationJump to search
No edit summary
No edit summary
 
Line 15: Line 15:
== Important amino acids==
== Important amino acids==
The ligand of ''h''OAT is Pyridoxal-5'-Phosphate <scene name='93/934005/Plp/1'>(PLP)</scene>. The role of the catalytic amino acids in an enzyme is to bind to a substrate, changing the structure, causing bonds to break and new bonds to be formed. When there is a difficult reaction, the triad of amino acids works in tandem to facilitate the reaction. A <scene name='93/934005/Glu235/1'>Glu 235</scene>-<scene name='93/934005/Arg413/1'>Arg 413</scene> <scene name='93/934005/Arg_413_glu_235/1'>salt bridge</scene> was found on AVA, but not on GABA. In regards to GABA, the salt bridge was disrupted in 30% of the monomers.  
The ligand of ''h''OAT is Pyridoxal-5'-Phosphate <scene name='93/934005/Plp/1'>(PLP)</scene>. The role of the catalytic amino acids in an enzyme is to bind to a substrate, changing the structure, causing bonds to break and new bonds to be formed. When there is a difficult reaction, the triad of amino acids works in tandem to facilitate the reaction. A <scene name='93/934005/Glu235/1'>Glu 235</scene>-<scene name='93/934005/Arg413/1'>Arg 413</scene> <scene name='93/934005/Arg_413_glu_235/1'>salt bridge</scene> was found on AVA, but not on GABA. In regards to GABA, the salt bridge was disrupted in 30% of the monomers.  
The crystal soaking experiments created an opportunity to decipher the reaction intermediates of the structures. While GABA linked to PLP covalently, PLP and catalytic Lys 292 were linked by AVA.  
The crystal soaking experiments created an opportunity to decipher the reaction intermediates of the structures. While GABA linked to PLP covalently, PLP and catalytic <scene name='93/934005/Lys_292/1'>Lys 292</scene> were linked by AVA.  


== Structural highlights ==
== Structural highlights ==