threonine--tRNA ligase family protein such as threonine--tRNA ligase ThrRS, also termed cytoplasmic threonine--tRNA ligase, a class II aminoacyl-tRNA synthetase (aaRS) that plays an essential role in protein synthesis by catalyzing the aminoacylation of tRNA(Thr), generating aminoacyl-tRNA, and editing misacylation, and such as the large ribosomal subunit protein mL39.
Threonyl-tRNA synthetase [Translation, ribosomal structure and biogenesis]; Threonyl-tRNA ...
255-749
0e+00
Threonyl-tRNA synthetase [Translation, ribosomal structure and biogenesis]; Threonyl-tRNA synthetase is part of the Pathway/BioSystem: Aminoacyl-tRNA synthetases
Pssm-ID: 440210 [Multi-domain] Cd Length: 639 Bit Score: 604.33 E-value: 0e+00
threonyl-tRNA synthetase; This model represents the threonyl-tRNA synthetase found in most ...
284-749
3.54e-170
threonyl-tRNA synthetase; This model represents the threonyl-tRNA synthetase found in most organisms. This protein is a class II tRNA synthetase, and is recognized by the pfam model tRNA-synt_2b. Note that B. subtilis has closely related isozymes thrS and thrZ. The N-terminal regions are quite dissimilar between archaeal and eubacterial forms, while some eukaryotic forms are missing sequence there altogether. . [Protein synthesis, tRNA aminoacylation]
Pssm-ID: 273068 [Multi-domain] Cd Length: 563 Bit Score: 501.09 E-value: 3.54e-170
Threonyl-tRNA synthetase (ThrRS) class II core catalytic domain. ThrRS is a homodimer. It is ...
424-695
1.92e-155
Threonyl-tRNA synthetase (ThrRS) class II core catalytic domain. ThrRS is a homodimer. It is responsible for the attachment of threonine to the 3' OH group of ribose of the appropriate tRNA. This domain 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.
Pssm-ID: 238394 [Multi-domain] Cd Length: 298 Bit Score: 453.16 E-value: 1.92e-155
Threonyl and Alanyl tRNA synthetase second additional domain; The catalytically active form of ...
357-397
1.30e-05
Threonyl and Alanyl tRNA synthetase second additional domain; The catalytically active form of threonyl/alanyl tRNA synthetase is a dimer. Within the tRNA synthetase class II dimer, the bound tRNA interacts with both monomers making specific interactions with the catalytic domain, the C-terminal domain, and this SAD domain (the second additional domain). The second additional domain is comprised of a pair of perpendicularly orientated antiparallel beta sheets, of four and three strands, respectively, that surround a central alpha helix that forms the core of the domain.
Pssm-ID: 197931 [Multi-domain] Cd Length: 43 Bit Score: 42.75 E-value: 1.30e-05
Threonyl-tRNA synthetase [Translation, ribosomal structure and biogenesis]; Threonyl-tRNA ...
255-749
0e+00
Threonyl-tRNA synthetase [Translation, ribosomal structure and biogenesis]; Threonyl-tRNA synthetase is part of the Pathway/BioSystem: Aminoacyl-tRNA synthetases
Pssm-ID: 440210 [Multi-domain] Cd Length: 639 Bit Score: 604.33 E-value: 0e+00
threonyl-tRNA synthetase; This model represents the threonyl-tRNA synthetase found in most ...
284-749
3.54e-170
threonyl-tRNA synthetase; This model represents the threonyl-tRNA synthetase found in most organisms. This protein is a class II tRNA synthetase, and is recognized by the pfam model tRNA-synt_2b. Note that B. subtilis has closely related isozymes thrS and thrZ. The N-terminal regions are quite dissimilar between archaeal and eubacterial forms, while some eukaryotic forms are missing sequence there altogether. . [Protein synthesis, tRNA aminoacylation]
Pssm-ID: 273068 [Multi-domain] Cd Length: 563 Bit Score: 501.09 E-value: 3.54e-170
Threonyl-tRNA synthetase (ThrRS) class II core catalytic domain. ThrRS is a homodimer. It is ...
424-695
1.92e-155
Threonyl-tRNA synthetase (ThrRS) class II core catalytic domain. ThrRS is a homodimer. It is responsible for the attachment of threonine to the 3' OH group of ribose of the appropriate tRNA. This domain 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.
Pssm-ID: 238394 [Multi-domain] Cd Length: 298 Bit Score: 453.16 E-value: 1.92e-155
Gly_His_Pro_Ser_Thr_tRNA synthetase class II core domain. This domain is the core catalytic ...
431-682
5.31e-17
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: 80.90 E-value: 5.31e-17
ThrRS Threonyl-anticodon binding domain. ThrRS belongs to class II aminoacyl-tRNA synthetases ...
695-749
7.11e-17
ThrRS Threonyl-anticodon binding domain. ThrRS belongs to class II aminoacyl-tRNA synthetases (aaRS). This alignment contains the anticodon binding domain, which is responsible for specificity in tRNA-binding, so that the activated amino acid is transferred to a ribose 3' OH group of the appropriate tRNA only.
Pssm-ID: 238437 [Multi-domain] Cd Length: 91 Bit Score: 76.00 E-value: 7.11e-17
Class II tRNA amino-acyl synthetase-like catalytic core domain. Class II amino acyl-tRNA ...
432-677
8.71e-17
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: 79.85 E-value: 8.71e-17
Threonyl and Alanyl tRNA synthetase second additional domain; The catalytically active form of ...
357-397
1.30e-05
Threonyl and Alanyl tRNA synthetase second additional domain; The catalytically active form of threonyl/alanyl tRNA synthetase is a dimer. Within the tRNA synthetase class II dimer, the bound tRNA interacts with both monomers making specific interactions with the catalytic domain, the C-terminal domain, and this SAD domain (the second additional domain). The second additional domain is comprised of a pair of perpendicularly orientated antiparallel beta sheets, of four and three strands, respectively, that surround a central alpha helix that forms the core of the domain.
Pssm-ID: 197931 [Multi-domain] Cd Length: 43 Bit Score: 42.75 E-value: 1.30e-05
Threonyl and Alanyl tRNA synthetase second additional domain; The catalytically active from of ...
357-397
1.57e-05
Threonyl and Alanyl tRNA synthetase second additional domain; The catalytically active from of threonyl/alanyl tRNA synthetase is a dimer. Within the tRNA synthetase class II dimer, the bound tRNA interacts with both monomers making specific interactions with the catalytic domain, the C-terminal domain, and this domain (the second additional domain). The second additional domain is comprised of a pair of perpendicularly orientated antiparallel beta sheets, of four and three strands, respectively, that surround a central alpha helix that forms the core of the domain.
Pssm-ID: 429764 [Multi-domain] Cd Length: 43 Bit Score: 42.43 E-value: 1.57e-05
TGS (ThrRS, GTPase and SpoT) domain found in threonyl-tRNA synthetase (ThrRS) and similar ...
255-283
4.00e-05
TGS (ThrRS, GTPase and SpoT) domain found in threonyl-tRNA synthetase (ThrRS) and similar proteins; ThrRS, also termed cytoplasmic threonine--tRNA ligase, is a class II aminoacyl-tRNA synthetase (aaRS) that plays an essential role in protein synthesis by catalyzing the aminoacylation of tRNA(Thr), generating aminoacyl-tRNA, and editing misacylation. In addition to its catalytic and anticodon-binding domains, ThrRS has an N-terminal TGS domain, named after the ThrRS, GTPase, and SpoT/RelA proteins where it occurs. TGS is a small domain with a beta-grasp ubiquitin-like fold, a common structure involved in protein-protein interactions.
Pssm-ID: 340458 [Multi-domain] Cd Length: 65 Bit Score: 42.09 E-value: 4.00e-05
TGS domain; The TGS domain is named after ThrRS, GTPase, and SpoT. Interestingly, TGS domain ...
255-283
2.77e-04
TGS domain; The TGS domain is named after ThrRS, GTPase, and SpoT. Interestingly, TGS domain was detected also at the amino terminus of the uridine kinase from the spirochaete Treponema pallidum (but not any other organizm, including the related spirochaete Borrelia burgdorferi). TGS is a small domain that consists of ~50 amino acid residues and is predicted to possess a predominantly beta-sheet structure. There is no direct information on the functions of the TGS domain, but its presence in two types of regulatory proteins (the GTPases and guanosine polyphosphate phosphohydrolases/synthetases) suggests a ligand (most likely nucleotide)-binding, regulatory role.
Pssm-ID: 427005 [Multi-domain] Cd Length: 60 Bit Score: 39.45 E-value: 2.77e-04
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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