4a6g

From Proteopedia

(Difference between revisions)

Current revision

N-acyl amino acid racemase from Amycalotopsis sp. Ts-1-60: G291D- F323Y mutant in complex with N-acetyl methionine

Structural highlights

4a6g is a 4 chain structure with sequence from Amycolatopsis sp.. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 2.71Å
Ligands:	,
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

NSAR_AMYSP Acts as a N-succinylamino acid racemase (NSAR) that catalyzes the racemization of N-succinyl-phenylglycine and N-succinyl-methionine (PubMed:14705949, PubMed:24955846). Can catalyze the racemization of a broad range of N-acylamino acids, including N-acetyl-D/L-methionine, N-propionyl-D/L-methionine, N-butyryl-D/L-methionine and N-chloroacetyl-L-valine (PubMed:7766084, PubMed:10194342, PubMed:14705949, PubMed:23130969). Also converts 2-succinyl-6-hydroxy-2,4-cyclohexadiene-1-carboxylate (SHCHC) to 2-succinylbenzoate (OSB) (PubMed:10194342, PubMed:14705949, PubMed:24955846). Catalyzes both N-succinylamino acid racemization and OSB synthesis at equivalent rates (PubMed:14705949, PubMed:24955846). NSAR is probably the biological function of this enzyme (Probable).^[1] ^[2] ^[3] ^[4] ^[5] ^[6] ^[7]

Publication Abstract from PubMed

Using directed evolution, a variant N-acetyl amino acid racemase (NAAAR G291D/F323Y) has been developed with up to 6-fold higher activity than the wild-type on a range of N-acetylated amino acids. The variant has been coupled with an enantiospecific acylase to give a preparative scale dynamic kinetic resolution which allows 98% conversion of N-acetyl-dl-allylglycine into d-allylglycine in 18 h at high substrate concentrations (50 g L(-1)). This is the first example of NAAAR operating under conditions which would allow it to be successfully used on an industrial scale for the production of enantiomerically pure alpha-amino acids. X-ray crystal analysis of the improved NAAAR variant allowed a comparison with the wild-type enzyme. We postulate that a network of novel interactions that result from the introduction of the two side chains is the source of improved catalytic performance.

An Improved Racemase/Acylase Biotransformation for the Preparation of Enantiomerically Pure Amino Acids.,Baxter S, Royer S, Grogan G, Brown F, Holt-Tiffin KE, Taylor IN, Fotheringham IG, Campopiano DJ J Am Chem Soc. 2012 Nov 15. PMID:23130969^[8]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Palmer DR, Garrett JB, Sharma V, Meganathan R, Babbitt PC, Gerlt JA. Unexpected divergence of enzyme function and sequence: "N-acylamino acid racemase" is o-succinylbenzoate synthase. Biochemistry. 1999 Apr 6;38(14):4252-8. PMID:10194342 doi:10.1021/bi990140p
↑ Taylor Ringia EA, Garrett JB, Thoden JB, Holden HM, Rayment I, Gerlt JA. Evolution of enzymatic activity in the enolase superfamily: functional studies of the promiscuous o-succinylbenzoate synthase from Amycolatopsis. Biochemistry. 2004 Jan 13;43(1):224-9. PMID:14705949 doi:10.1021/bi035815+
↑ Baxter S, Royer S, Grogan G, Brown F, Holt-Tiffin KE, Taylor IN, Fotheringham IG, Campopiano DJ. An Improved Racemase/Acylase Biotransformation for the Preparation of Enantiomerically Pure Amino Acids. J Am Chem Soc. 2012 Nov 15. PMID:23130969 doi:http://dx.doi.org/10.1021/ja305438y
↑ McMillan AW, Lopez MS, Zhu M, Morse BC, Yeo IC, Amos J, Hull K, Romo D, Glasner ME. Role of an active site loop in the promiscuous activities of Amycolatopsis sp. T-1-60 NSAR/OSBS. Biochemistry. 2014 Jul 15;53(27):4434-44. PMID:24955846 doi:10.1021/bi500573v
↑ Tokuyama S, Hatano K. Purification and properties of thermostable N-acylamino acid racemase from Amycolatopsis sp. TS-1-60. Appl Microbiol Biotechnol. 1995 Mar;42(6):853-9. PMID:7766084 doi:10.1007/BF00191181
↑ Glasner ME, Fayazmanesh N, Chiang RA, Sakai A, Jacobson MP, Gerlt JA, Babbitt PC. Evolution of structure and function in the o-succinylbenzoate synthase/N-acylamino acid racemase family of the enolase superfamily. J Mol Biol. 2006 Jun 30;360(1):228-50. PMID:16740275 doi:10.1016/j.jmb.2006.04.055
↑ McMillan AW, Lopez MS, Zhu M, Morse BC, Yeo IC, Amos J, Hull K, Romo D, Glasner ME. Role of an active site loop in the promiscuous activities of Amycolatopsis sp. T-1-60 NSAR/OSBS. Biochemistry. 2014 Jul 15;53(27):4434-44. PMID:24955846 doi:10.1021/bi500573v
↑ Baxter S, Royer S, Grogan G, Brown F, Holt-Tiffin KE, Taylor IN, Fotheringham IG, Campopiano DJ. An Improved Racemase/Acylase Biotransformation for the Preparation of Enantiomerically Pure Amino Acids. J Am Chem Soc. 2012 Nov 15. PMID:23130969 doi:http://dx.doi.org/10.1021/ja305438y

1 Structural highlights
2 Function
3 Publication Abstract from PubMed
4 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/4a6g"

@@ Line 4: / Line 4: @@
 == Structural highlights ==
 <table><tr><td colspan='2'>[[4a6g]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Amycolatopsis_sp. Amycolatopsis sp.]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4A6G OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4A6G FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=AME:N-ACETYLMETHIONINE'>AME</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr>
+</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.71&#8491;</td></tr>
-<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1sjb|1sjb]], [[1sja|1sja]], [[1sjc|1sjc]], [[1sjd|1sjd]]</div></td></tr>
+<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=AME:N-ACETYLMETHIONINE'>AME</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr>
-<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/o-succinylbenzoate_synthase o-succinylbenzoate synthase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=4.2.1.113 4.2.1.113] </span></td></tr>
 <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=4a6g FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4a6g OCA], [https://pdbe.org/4a6g PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4a6g RCSB], [https://www.ebi.ac.uk/pdbsum/4a6g PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4a6g ProSAT]</span></td></tr>
 </table>
+== Function ==
+[https://www.uniprot.org/uniprot/NSAR_AMYSP NSAR_AMYSP] Acts as a N-succinylamino acid racemase (NSAR) that catalyzes the racemization of N-succinyl-phenylglycine and N-succinyl-methionine (PubMed:14705949, PubMed:24955846). Can catalyze the racemization of a broad range of N-acylamino acids, including N-acetyl-D/L-methionine, N-propionyl-D/L-methionine, N-butyryl-D/L-methionine and N-chloroacetyl-L-valine (PubMed:7766084, PubMed:10194342, PubMed:14705949, PubMed:23130969). Also converts 2-succinyl-6-hydroxy-2,4-cyclohexadiene-1-carboxylate (SHCHC) to 2-succinylbenzoate (OSB) (PubMed:10194342, PubMed:14705949, PubMed:24955846). Catalyzes both N-succinylamino acid racemization and OSB synthesis at equivalent rates (PubMed:14705949, PubMed:24955846). NSAR is probably the biological function of this enzyme (Probable).<ref>PMID:10194342</ref> <ref>PMID:14705949</ref> <ref>PMID:23130969</ref> <ref>PMID:24955846</ref> <ref>PMID:7766084</ref> <ref>PMID:16740275</ref> <ref>PMID:24955846</ref>
 <div style="background-color:#fffaf0;">
 == Publication Abstract from PubMed ==
@@ Line 24: / Line 25: @@
 [[Category: Amycolatopsis sp]]
 [[Category: Large Structures]]
-[[Category: O-succinylbenzoate synthase]]
+[[Category: Baxter S]]
-[[Category: Baxter, S]]
+[[Category: Campopiano DJ]]
-[[Category: Campopiano, D J]]
+[[Category: Fotheringham IG]]
-[[Category: Fotheringham, I G]]
+[[Category: Grogan G]]
-[[Category: Grogan, G]]
+[[Category: Holt-Tiffin KE]]
-[[Category: Holt-Tiffin, K E]]
+[[Category: Royer S]]
-[[Category: Royer, S]]
+[[Category: Taylor IN]]
-[[Category: Taylor, I N]]
-[[Category: Biocatalysis]]
-[[Category: Lyase]]

4a6g

From Proteopedia

Current revision

N-acyl amino acid racemase from Amycalotopsis sp. Ts-1-60: G291D- F323Y mutant in complex with N-acetyl methionine

Structural highlights

Function

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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