Class II tRNA amino-acyl synthetase-like catalytic core domain. Class II amino acyl-tRNA ...
100-394
3.38e-142
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.
The actual alignment was detected with superfamily member cd00770:
Pssm-ID: 444800 [Multi-domain] Cd Length: 297 Bit Score: 406.95 E-value: 3.38e-142
Seryl-tRNA synthetase (SerRS) class II core catalytic domain. SerRS is responsible for the ...
100-394
3.38e-142
Seryl-tRNA synthetase (SerRS) class II core catalytic domain. SerRS is responsible for the attachment of serine to the 3' OH group of ribose of the appropriate tRNA. This domain It is primarily responsible for ATP-dependent formation of the enzyme bound aminoacyl-adenylate. Class II assignment is based upon its structure and the presence of three characteristic sequence motifs in the core domain. SerRS synthetase is a homodimer.
Pssm-ID: 238393 [Multi-domain] Cd Length: 297 Bit Score: 406.95 E-value: 3.38e-142
Seryl-tRNA synthetase [Translation, ribosomal structure and biogenesis]; Seryl-tRNA synthetase ...
60-401
1.15e-95
Seryl-tRNA synthetase [Translation, ribosomal structure and biogenesis]; Seryl-tRNA synthetase is part of the Pathway/BioSystem: Aminoacyl-tRNA synthetases
Pssm-ID: 439942 [Multi-domain] Cd Length: 421 Bit Score: 293.06 E-value: 1.15e-95
seryl-tRNA synthetase; This model represents the seryl-tRNA synthetase found in most organisms. ...
64-394
2.77e-94
seryl-tRNA synthetase; This model represents the seryl-tRNA synthetase found in most organisms. This protein is a class II tRNA synthetase, and is recognized by the pfam model tRNA-synt_2b. The seryl-tRNA synthetases of two archaeal species, Methanococcus jannaschii and Methanobacterium thermoautotrophicum, differ considerably and are included in a different model. [Protein synthesis, tRNA aminoacylation]
Pssm-ID: 273066 [Multi-domain] Cd Length: 418 Bit Score: 289.26 E-value: 2.77e-94
Seryl-tRNA synthetase (SerRS) class II core catalytic domain. SerRS is responsible for the ...
100-394
3.38e-142
Seryl-tRNA synthetase (SerRS) class II core catalytic domain. SerRS is responsible for the attachment of serine to the 3' OH group of ribose of the appropriate tRNA. This domain It is primarily responsible for ATP-dependent formation of the enzyme bound aminoacyl-adenylate. Class II assignment is based upon its structure and the presence of three characteristic sequence motifs in the core domain. SerRS synthetase is a homodimer.
Pssm-ID: 238393 [Multi-domain] Cd Length: 297 Bit Score: 406.95 E-value: 3.38e-142
Seryl-tRNA synthetase [Translation, ribosomal structure and biogenesis]; Seryl-tRNA synthetase ...
60-401
1.15e-95
Seryl-tRNA synthetase [Translation, ribosomal structure and biogenesis]; Seryl-tRNA synthetase is part of the Pathway/BioSystem: Aminoacyl-tRNA synthetases
Pssm-ID: 439942 [Multi-domain] Cd Length: 421 Bit Score: 293.06 E-value: 1.15e-95
seryl-tRNA synthetase; This model represents the seryl-tRNA synthetase found in most organisms. ...
64-394
2.77e-94
seryl-tRNA synthetase; This model represents the seryl-tRNA synthetase found in most organisms. This protein is a class II tRNA synthetase, and is recognized by the pfam model tRNA-synt_2b. The seryl-tRNA synthetases of two archaeal species, Methanococcus jannaschii and Methanobacterium thermoautotrophicum, differ considerably and are included in a different model. [Protein synthesis, tRNA aminoacylation]
Pssm-ID: 273066 [Multi-domain] Cd Length: 418 Bit Score: 289.26 E-value: 2.77e-94
Gly_His_Pro_Ser_Thr_tRNA synthetase class II core domain. This domain is the core catalytic ...
150-375
1.44e-15
Gly_His_Pro_Ser_Thr_tRNA synthetase class II core domain. This domain is the core catalytic domain of tRNA synthetases of the subgroup containing glycyl, histidyl, prolyl, seryl and threonyl tRNA synthetases. It is primarily responsible for ATP-dependent formation of the enzyme bound aminoacyl-adenylate. These enzymes belong to class II aminoacyl-tRNA synthetases (aaRS) based upon their structure and the presence of three characteristic sequence motifs in the core domain. This domain is also found at the C-terminus of eukaryotic GCN2 protein kinase and at the N-terminus of the ATP phosphoribosyltransferase accessory subunit, HisZ and the accessory subunit of mitochondrial polymerase gamma (Pol gamma b) . Most class II tRNA synthetases are dimers, with this subgroup consisting of mostly homodimers. These enzymes attach a specific amino acid to the 3' OH group of ribose of the appropriate tRNA.
Pssm-ID: 238359 [Multi-domain] Cd Length: 235 Bit Score: 75.51 E-value: 1.44e-15
Class II tRNA amino-acyl synthetase-like catalytic core domain. Class II amino acyl-tRNA ...
153-370
1.35e-05
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.
Pssm-ID: 238391 [Multi-domain] Cd Length: 211 Bit Score: 45.96 E-value: 1.35e-05
Database: CDSEARCH/cdd Low complexity filter: no Composition Based Adjustment: yes E-value threshold: 0.01
References:
Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
Marchler-Bauer A et al. (2017), "CDD/SPARCLE: functional classification of proteins via subfamily domain architectures.", Nucleic Acids Res.45(D)200-3.
of the residues that compose this conserved feature have been mapped to the query sequence.
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