1B7Y

PHENYLALANYL TRNA SYNTHETASE COMPLEXED WITH PHENYLALANINYL-ADENYLATE

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Structure Motif: Primary M-CSA Annotation

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1b7ya_	Alpha and beta proteins (a+b)	Class II aaRS and biotin synthetases	Class II aaRS and biotin synthetases	Class II aminoacyl-tRNA synthetase (aaRS)-like, catalytic domain	Phenyl-tRNA synthetase (PheRS) alpha subunit, PheS	(Thermus thermophilus ) [TaxId: 274 ],	SCOPe (2.08)
B	d1b7yb1	All alpha proteins	Putative DNA-binding domain	Putative DNA-binding domain	Domains B1 and B5 of PheRS-beta, PheT	Domains B1 and B5 of PheRS-beta, PheT	(Thermus thermophilus ) [TaxId: 274 ],	SCOPe (2.08)
B	d1b7yb3	All beta proteins	OB-fold	Nucleic acid-binding proteins	Myf domain	Domain B2 of PheRS-beta, PheT	(Thermus thermophilus ) [TaxId: 274 ],	SCOPe (2.08)
B	d1b7yb6	All beta proteins	PheT/TilS domain	PheT/TilS domain	B3/B4 domain of PheRS, PheT	B3/B4 domain of PheRS, PheT	(Thermus thermophilus ) [TaxId: 274 ],	SCOPe (2.08)
B	d1b7yb4	Alpha and beta proteins (a+b)	Ferredoxin-like	Anticodon-binding domain of PheRS	Anticodon-binding domain of PheRS	Phenylalanyl-tRNA synthetase	(Thermus thermophilus ) [TaxId: 274 ],	SCOPe (2.08)
B	d1b7yb5	Alpha and beta proteins (a+b)	Class II aaRS and biotin synthetases	Class II aaRS and biotin synthetases	Class II aminoacyl-tRNA synthetase (aaRS)-like, catalytic domain	Phenyl-tRNA synthetase (PheRS) beta subunit, PheT, central domain	(Thermus thermophilus ) [TaxId: 274 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Class II aaRS and biotin synthetases	8101535	3000058	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	tRNA-synt_2d	e1b7yA1	A: a+b three layers	X: Class II aaRS and biotin synthetases (From Topology)	H: Class II aaRS and biotin synthetases (From Topology)	T: Class II aaRS and biotin synthetases	F: tRNA-synt_2d	ECOD (1.6)
B	tRNA_bind_1	e1b7yB1	A: beta barrels	X: OB-fold	H: Nucleic acid-binding proteins (From Topology)	T: Nucleic acid-binding proteins	F: tRNA_bind_1	ECOD (1.6)
B	B3_4	e1b7yB2	A: beta complex topology	X: PheT/TilS domain (From Topology)	H: PheT/TilS domain (From Topology)	T: PheT/TilS domain	F: B3_4	ECOD (1.6)
B	B5	e1b7yB4	A: alpha arrays	X: HTH	H: HTH	T: Putative DNA-binding domain	F: B5	ECOD (1.6)
B	pheT	e1b7yB3	A: alpha arrays	X: HTH	H: HTH	T: Putative DNA-binding domain	F: pheT	ECOD (1.6)
B	FDX-ACB	e1b7yB5	A: a+b two layers	X: Alpha-beta plaits	H: Anticodon-binding domain of PheRS (From Topology)	T: Anticodon-binding domain of PheRS	F: FDX-ACB	ECOD (1.6)
B	tRNA-synt_2d_1	e1b7yB6	A: a+b three layers	X: Class II aaRS and biotin synthetases (From Topology)	H: Class II aaRS and biotin synthetases (From Topology)	T: Class II aaRS and biotin synthetases	F: tRNA-synt_2d_1	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.30.930.10	Alpha Beta	2-Layer Sandwich	BirA Bifunctional Protein	domain 2	CATH (4.3.0)
B	3.30.56.10	Alpha Beta	2-Layer Sandwich	Phenylalanyl-tRNA Synthetase	Chain B, domain 1	CATH (4.3.0)
B	2.40.50.140	Mainly Beta	Beta Barrel	OB fold (Dihydrolipoamide Acetyltransferase, E2P)	Nucleic acid-binding proteins	CATH (4.3.0)
B	3.50.40.10	Alpha Beta	3-Layer(bba) Sandwich	Phenylalanyl-tRNA Synthetase	Chain B, domain 3	CATH (4.3.0)
B	3.30.930.10	Alpha Beta	2-Layer Sandwich	BirA Bifunctional Protein	domain 2	CATH (4.3.0)
B	3.30.70.380	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits	Ferrodoxin-fold anticodon-binding domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B	PF03483	B3/4 domain (B3_4)	B3/4 domain	This domain is found in tRNA synthetase beta subunits as well as in some non tRNA synthetase proteins.	Domain
B	PF03484	tRNA synthetase B5 domain (B5)	tRNA synthetase B5 domain	This domain is found in phenylalanine-tRNA synthetase beta subunits.	Domain
B	PF03147	Ferredoxin-fold anticodon binding domain (FDX-ACB)	Ferredoxin-fold anticodon binding domain	This is the anticodon binding domain found in some phenylalanyl tRNA synthetases. The domain has a ferredoxin fold [1,2].	Domain
B	PF17759	Phenylalanyl tRNA synthetase beta chain CLM domain (tRNA_synthFbeta)	Phenylalanyl tRNA synthetase beta chain CLM domain	This domain corresponds to the catalytic like domain (CLM) in the beta chain of phe tRNA synthetase [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	PROTEIN (PHENYLALANYL-TRNA SYNTHETASE)	cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding purine nucleotide binding organic cyclic compound binding anion binding cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding ligase activity, forming carbon-oxygen bonds aminoacyl-tRNA ligase activity catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid phenylalanine-tRNA ligase activity catalytic activity, acting on a tRNA catalytic activity ligase activity RNA binding tRNA binding nucleic acid binding	amino acid activation tRNA aminoacylation RNA metabolic process primary metabolic process amino acid metabolic process translation gene expression tRNA aminoacylation for protein translation macromolecule biosynthetic process nucleic acid metabolic process tRNA metabolic process nucleobase-containing compound metabolic process biosynthetic process metabolic process amino acid activation tRNA aminoacylation RNA metabolic process primary metabolic process amino acid metabolic process translation gene expression tRNA aminoacylation for protein translation macromolecule biosynthetic process nucleic acid metabolic process tRNA metabolic process nucleobase-containing compound metabolic process biosynthetic process metabolic process cellular process macromolecule metabolic process protein metabolic process phenylalanyl-tRNA aminoacylation	cellular anatomical structure intracellular anatomical structure cytoplasm
B	PROTEIN (PHENYLALANYL-TRNA SYNTHETASE)	cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding purine nucleotide binding organic cyclic compound binding anion binding cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding ligase activity, forming carbon-oxygen bonds aminoacyl-tRNA ligase activity catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid phenylalanine-tRNA ligase activity catalytic activity, acting on a tRNA catalytic activity ligase activity RNA binding tRNA binding nucleic acid binding	amino acid activation tRNA aminoacylation RNA metabolic process primary metabolic process amino acid metabolic process translation gene expression tRNA aminoacylation for protein translation macromolecule biosynthetic process nucleic acid metabolic process tRNA metabolic process nucleobase-containing compound metabolic process biosynthetic process metabolic process amino acid activation tRNA aminoacylation RNA metabolic process primary metabolic process amino acid metabolic process translation gene expression tRNA aminoacylation for protein translation macromolecule biosynthetic process nucleic acid metabolic process tRNA metabolic process nucleobase-containing compound metabolic process biosynthetic process metabolic process cellular process macromolecule metabolic process protein metabolic process phenylalanyl-tRNA aminoacylation	cellular anatomical structure intracellular anatomical structure cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR045864	Class II Aminoacyl-tRNA synthetase/Biotinyl protein ligase (BPL) and lipoyl protein ligase (LPL)	Homologous Superfamily
A	IPR002319	Phenylalanyl-tRNA synthetase	Domain
A	IPR004188	Phenylalanine-tRNA ligase, class II, N-terminal	Domain
A	IPR004529	Phenylalanyl-tRNA synthetase, class IIc, alpha subunit	Family
A	IPR022911	Phenylalanine-tRNA ligase alpha chain 1, bacterial	Family
A	IPR006195	Aminoacyl-tRNA synthetase, class II	Domain
A	IPR010978	Class I and II aminoacyl-tRNA synthetase, tRNA-binding arm	Homologous Superfamily
B	IPR009061	Putative DNA-binding domain superfamily	Homologous Superfamily
B	IPR045060	Phenylalanine-tRNA ligase, class IIc, beta subunit	Family
B	IPR020825	Phenylalanyl-tRNA synthetase-like, B3/B4	Homologous Superfamily
B	IPR045864	Class II Aminoacyl-tRNA synthetase/Biotinyl protein ligase (BPL) and lipoyl protein ligase (LPL)	Homologous Superfamily
B	IPR002547	tRNA-binding domain	Domain
B	IPR005147	tRNA synthetase, B5-domain	Domain
B	IPR005146	B3/B4 tRNA-binding domain	Domain
B	IPR041616	Phenylalanyl tRNA synthetase beta chain, core domain	Domain
B	IPR033714	Phenylalanly tRNA synthetase, tRNA-binding-domain	Domain
B	IPR005121	Ferrodoxin-fold anticodon-binding domain	Domain
B	IPR012340	Nucleic acid-binding, OB-fold	Homologous Superfamily
B	IPR036690	Ferrodoxin-fold anticodon-binding domain superfamily	Homologous Superfamily
B	IPR004532	Phenylalanine-tRNA ligase, class IIc, beta subunit, bacterial type	Family

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

Chains	Enzyme Name	Description	Catalytic Residues
A	phenylalanine---tRNA ligase M-CSA #539	Phenylalanine tRNA synthase is able to catalyse the addition of a phenylalanine residue to the specific tRNA needed to transfer it to the ribosome for protein synthesis. It is a member of the Class II group of amino acid tRNA synthases, which includes Histidine and Serine specific enzymes, as opposed to the Class I group including, among others, Arginine and Lysine specific enzymes. As a consequence, it shows homology with the rest of the Class II group in the residues surrounding the ATP binding site in particular, as well as some overall structural similarity. The enzyme is unusual however because it adds the amino acid to the 2' OH group of the tRNA rather than the 3'OH, the only Class II enzyme so far discovered with this functionality. Currently, there is insufficient evidence to create an exact enzyme mechanism and verify if divalent ions such as magnesium have a role at the active site.	Defined by 6 residues: TRP:A-149HIS:A-178ARG:A-204GLN:A-218VAL:A-261ALA:A-314 \| Explore in 3D: M-CSA Motif Definition Search M-CSA Motif EC: 6.1.1.20 (PDB Primary Data) Search M-CSA Motif + EC 6.1.1.20