Conserved Protein Domain Family
class_II_aaRS-like_core

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cl00268: class_II_aaRS-like_core Superfamily 
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Class II tRNA amino-acyl synthetase-like catalytic core domain. Class II amino acyl-tRNA synthetases (aaRS) share a common fold and generally attach an amino acid to the 3' OH of ribose of the appropriate tRNA. PheRS is an exception in that it attaches the amino acid at the 2'-OH group, like class I aaRSs. These enzymes are usually homodimers. This domain is primarily responsible for ATP-dependent formation of the enzyme bound aminoacyl-adenylate. The substrate specificity of this reaction is further determined by additional domains. Intererestingly, this domain is also found is asparagine synthase A (AsnA), in the accessory subunit of mitochondrial polymerase gamma and in the bacterial ATP phosphoribosyltransferase regulatory subunit HisZ.
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Statistics
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Accession: cl00268
PSSM Id: 294192
Name: class_II_aaRS-like_core
Created: 8-Feb-2008
Updated: 2-Feb-2016
Superfamily
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Curated CD Hierarchy
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cd00496:PheRS_alpha_corecd00645:AsnAcd00669:Asp_Lys_Asn_RS_corecd00670:Gly_His_Pro_Ser_Thr_tRS_corecd00673:AlaRS_corecd00733:GlyRS_alpha_corecd00768:class_II_aaRS-like_corecd00769:PheRS_beta_corecd00770:SerRS_corecd00771:ThrRS_corecd00772:ProRS_corecd00773:HisRS-like_corecd00774:GlyRS-like_corecd00775:LysRS_corecd00776:AsxRS_corecd00777:AspRS_corecd00778:ProRS_core_arch_eukcd00779:ProRS_core_prok
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Imported CD
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