Annotations: 3AMT

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	tRNA_anti-codon_3	e3amtA3	A: beta barrels	X: OB-fold	H: Nucleic acid-binding proteins (From Topology)	T: Nucleic acid-binding proteins	F: tRNA_anti-codon_3	ECOD (1.6)
A	DUF1743	e3amtA2	A: a+b two layers	X: Alpha-beta plaits	H: RNA-binding domain, RBD (From Topology)	T: RNA-binding domain, RBD	F: DUF1743	ECOD (1.6)
A	TiaS	e3amtA1	A: a+b two layers	X: Alpha-beta plaits	H: Adenylyl and guanylyl cyclase catalytic domain-like	T: Adenylyl and guanylyl cyclase catalytic domain-like	F: TiaS	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF22641	TiaS TCKD domain (TiaS_TCKD)	TiaS TCKD domain	This domain is found in tRNA(Ile2) 2-agmatinylcytidine synthetase TiaS and related proteins. TiaS is an ATP-dependent agmatine transferase that catalyses the formation of 2-agmatinylcytidine (agm2C) at the wobble position (C34) of tRNA(Ile2) [1]. Thi ...	This domain is found in tRNA(Ile2) 2-agmatinylcytidine synthetase TiaS and related proteins. TiaS is an ATP-dependent agmatine transferase that catalyses the formation of 2-agmatinylcytidine (agm2C) at the wobble position (C34) of tRNA(Ile2) [1]. This domain is found at the N-terminal of TiaS and it is responsible for ATP binding [1,2].	Domain
A	PF08489	TiaS FLD domain (TiaS_FLD)	TiaS FLD domain	This is the FLD domain found in tRNA(Ile2) 2-agmatinylcytidine synthetase TiaS. TiaS is an archaeal ATP-dependent agmatine transferase that catalyses the formation of 2-agmatinylcytidine (agm2C) at the wobble position (C34) of tRNA(Ile2) [1-3]. This ...	This is the FLD domain found in tRNA(Ile2) 2-agmatinylcytidine synthetase TiaS. TiaS is an archaeal ATP-dependent agmatine transferase that catalyses the formation of 2-agmatinylcytidine (agm2C) at the wobble position (C34) of tRNA(Ile2) [1-3]. This modified base specifically recognises AUA codons. TiaS consists of four domains, the TCKD domain (Pfam:PF22641) at the N-terminal followed by the FLD domain, an OB fold domain and a zinc ribbon domain (ZRD) domain at the C-terminal [2]. This domain is responsible for agmantine binding [1].	Domain
A	PF01336	OB-fold nucleic acid binding domain (tRNA_anti-codon)	OB-fold nucleic acid binding domain	This family contains OB-fold domains that bind to nucleic acids [4]. The family includes the anti-codon binding domain of lysyl, aspartyl, and asparaginyl -tRNA synthetases (See Pfam:PF00152). Aminoacyl-tRNA synthetases catalyse the addition of an am ...	This family contains OB-fold domains that bind to nucleic acids [4]. The family includes the anti-codon binding domain of lysyl, aspartyl, and asparaginyl -tRNA synthetases (See Pfam:PF00152). Aminoacyl-tRNA synthetases catalyse the addition of an amino acid to the appropriate tRNA molecule EC:6.1.1.-. This family also includes part of RecG helicase involved in DNA repair. Replication factor A is a hetero-trimeric complex, that contains a subunit in this family [2,3]. This domain is also found at the C-terminus of bacterial DNA polymerase III alpha chain.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Putative uncharacterized protein	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding nucleic acid binding catalytic activity ligase activity, forming carbon-nitrogen bonds ligase activity	tRNA modification RNA metabolic process primary metabolic process gene expression nucleobase-containing compound biosynthetic process macromolecule biosynthetic process nucleic acid metabolic process tRNA metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process RNA modification biosynthetic process tRNA processing macromolecule modification tRNA modification RNA metabolic process primary metabolic process gene expression nucleobase-containing compound biosynthetic process macromolecule biosynthetic process nucleic acid metabolic process tRNA metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process RNA modification biosynthetic process tRNA processing macromolecule modification tRNA wobble cytosine modification tRNA wobble base modification metabolic process cellular process macromolecule metabolic process RNA processing	cellular anatomical structure intracellular anatomical structure cytoplasm
B	RNA (78-MER)	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR055394	TiaS, C-terminal zinc ribbon domain	Domain
A	IPR013696	TiaS, FLD domain	Domain
A	IPR004365	OB-fold nucleic acid binding domain, AA-tRNA synthetase-type	Domain
A	IPR053434	tRNA(Ile2) 2-agmatinylcytidine synthetase	Family
A	IPR024913	tRNA(Ile2) 2-agmatinylcytidine synthetase TiaS	Family
A	IPR053870	TiaS-like, TCKD domain	Domain

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
A	MSE	Parent Component: MET
A	TPO	Parent Component: THR RESID: AA0038 PSI-MOD : O-phospho-L-threonine MOD:00047

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.