Structure of PDB 2ay3 Chain B

Receptor sequence
>2ay3B (length=388) Species: 266 (Paracoccus denitrificans) [Search protein sequence]
MLGNLKPQAPDKILALMGEFGKIDLGVGVYKDATGHTPIMRAVHAAEQRM
LETETTKTYAGLSGEPEFQKAMGELILGDGLKSETTATLATVGGTGALRQ
ALELARMANPDLRVFVSDPTWPNHVSIMNFMGLPVQTYRYFDAETRGVDF
EGMKADLAAAKKGDMVLLHGCCHNPTGANLTLDQWAEIASILEKTGALPL
IDLAYQGFGDGLEEDAAGTRLIASRIPEVLIAASCSKNFGIYRERTGCLL
ALCADAATRELAQGAMAFLNRQTYSFPPFHGAKIVSTVLTTPELRADWMA
ELEAVRSGMLRLREQLAGELRDLSGSDRFGFVAEHRGMFSRLGATPEQVK
RIKEEFGIYMVGDSRINIAGLNDNTIPILARAIIEVGV
3D structure
PDB2ay3 The active site of Paracoccus denitrificans aromatic amino acid aminotransferase has contrary properties: flexibility and rigidity.
ChainB
Resolution2.4 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) W140 D222 A224 K258
Catalytic site (residue number reindexed from 1) W121 D202 A204 K237
Enzyme Commision number 2.6.1.57: aromatic-amino-acid transaminase.
Interaction with ligand
Site
#		 Ligand Ligand
chain		 Binding residues on receptor
(original residue number in PDB)		 Binding residues on receptor
(residue number reindexed from 1)		 Binding affinity
BS01 MPP B Y70 S296 Y59 S275 MOAD: Kd=0.28mM
PDBbind-CN: -logKd/Ki=3.55,Kd=0.28mM
BS02 PLP B G108 T109 W140 N194 D222 A224 Y225 S255 S257 K258 R266 G94 T95 W121 N174 D202 A204 Y205 S234 S236 K237 R245
BS03 MPP B D15 I17 L18 G38 W140 N142 R386 D11 I13 L14 G28 W121 N123 R365 MOAD: Kd=0.28mM
PDBbind-CN: -logKd/Ki=3.55,Kd=0.28mM
Gene Ontology
Molecular Function
GO:0004069 L-aspartate:2-oxoglutarate aminotransferase activity
GO:0004838 L-tyrosine-2-oxoglutarate transaminase activity
GO:0008483 transaminase activity
GO:0008793 aromatic-amino-acid transaminase activity
GO:0030170 pyridoxal phosphate binding
GO:0042802 identical protein binding
GO:0080130 L-phenylalanine-2-oxoglutarate transaminase activity
Biological Process
GO:0006520 amino acid metabolic process
GO:0008652 amino acid biosynthetic process
GO:0009058 biosynthetic process
GO:0009073 aromatic amino acid family biosynthetic process
GO:0033585 L-phenylalanine biosynthetic process from chorismate via phenylpyruvate
Cellular Component
GO:0005737 cytoplasm
GO:0005829 cytosol

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Cellular Component
External links
PDB RCSB:2ay3, PDBe:2ay3, PDBj:2ay3
PDBsum2ay3
PubMed9930977
UniProtP95468|TYRB_PARDE Aromatic-amino-acid aminotransferase (Gene Name=tyrB)

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