lysine--tRNA ligase catalyzes the specific attachment of an amino acid to its cognate tRNA in a 2 step reaction: the amino acid (AA) is first activated by ATP to form AA-AMP and then transferred to the acceptor end of the tRNA(Lys)
Lysyl-tRNA synthetase, class I [Translation, ribosomal structure and biogenesis]; Lysyl-tRNA ...
1-520
0e+00
Lysyl-tRNA synthetase, class I [Translation, ribosomal structure and biogenesis]; Lysyl-tRNA synthetase, class I is part of the Pathway/BioSystem: Aminoacyl-tRNA synthetases
Pssm-ID: 440994 [Multi-domain] Cd Length: 525 Bit Score: 627.22 E-value: 0e+00
catalytic core domain of class I lysyl tRNA synthetase; Class I lysyl tRNA synthetase (LysRS) ...
2-357
0e+00
catalytic core domain of class I lysyl tRNA synthetase; Class I lysyl tRNA synthetase (LysRS) catalytic core domain. This class I enzyme is a monomer which aminoacylates the 2'-OH of the nucleotide at the 3' of the appropriate tRNA. The core domain is based on the Rossman fold and is responsible for the ATP-dependent formation of the enzyme bound aminoacyl-adenylate. It contains the characteristic class I HIGH and KMSKS motifs, which are involved in ATP binding. The class I LysRS is found only in archaea and some bacteria and has evolved separately from class II LysRS, as the two do not share structural or sequence similarity.
Pssm-ID: 173900 [Multi-domain] Cd Length: 353 Bit Score: 548.46 E-value: 0e+00
lysyl-tRNA synthetase, archaeal and spirochete; This model represents the lysyl-tRNA ...
3-521
7.24e-172
lysyl-tRNA synthetase, archaeal and spirochete; This model represents the lysyl-tRNA synthetases that are class I amino-acyl tRNA synthetases. It includes archaeal and spirochete examples of the enzyme. All other known examples are class IIc amino-acyl tRNA synthetases and seem to form a separate orthologous set. [Protein synthesis, tRNA aminoacylation]
Pssm-ID: 273094 [Multi-domain] Cd Length: 515 Bit Score: 495.20 E-value: 7.24e-172
Lysyl-tRNA synthetase, class I [Translation, ribosomal structure and biogenesis]; Lysyl-tRNA ...
1-520
0e+00
Lysyl-tRNA synthetase, class I [Translation, ribosomal structure and biogenesis]; Lysyl-tRNA synthetase, class I is part of the Pathway/BioSystem: Aminoacyl-tRNA synthetases
Pssm-ID: 440994 [Multi-domain] Cd Length: 525 Bit Score: 627.22 E-value: 0e+00
catalytic core domain of class I lysyl tRNA synthetase; Class I lysyl tRNA synthetase (LysRS) ...
2-357
0e+00
catalytic core domain of class I lysyl tRNA synthetase; Class I lysyl tRNA synthetase (LysRS) catalytic core domain. This class I enzyme is a monomer which aminoacylates the 2'-OH of the nucleotide at the 3' of the appropriate tRNA. The core domain is based on the Rossman fold and is responsible for the ATP-dependent formation of the enzyme bound aminoacyl-adenylate. It contains the characteristic class I HIGH and KMSKS motifs, which are involved in ATP binding. The class I LysRS is found only in archaea and some bacteria and has evolved separately from class II LysRS, as the two do not share structural or sequence similarity.
Pssm-ID: 173900 [Multi-domain] Cd Length: 353 Bit Score: 548.46 E-value: 0e+00
lysyl-tRNA synthetase, archaeal and spirochete; This model represents the lysyl-tRNA ...
3-521
7.24e-172
lysyl-tRNA synthetase, archaeal and spirochete; This model represents the lysyl-tRNA synthetases that are class I amino-acyl tRNA synthetases. It includes archaeal and spirochete examples of the enzyme. All other known examples are class IIc amino-acyl tRNA synthetases and seem to form a separate orthologous set. [Protein synthesis, tRNA aminoacylation]
Pssm-ID: 273094 [Multi-domain] Cd Length: 515 Bit Score: 495.20 E-value: 7.24e-172
catalytic core domain of class I amino acyl-tRNA synthetase; Class I amino acyl-tRNA ...
23-284
1.13e-30
catalytic core domain of class I amino acyl-tRNA synthetase; Class I amino acyl-tRNA synthetase (aaRS) catalytic core domain. These enzymes are mostly monomers which aminoacylate the 2'-OH of the nucleotide at the 3' of the appropriate tRNA. The core domain is based on the Rossman fold and is responsible for the ATP-dependent formation of the enzyme bound aminoacyl-adenylate. It contains the characteristic class I HIGH and KMSKS motifs, which are involved in ATP binding.
Pssm-ID: 173901 [Multi-domain] Cd Length: 143 Bit Score: 116.43 E-value: 1.13e-30
catalytic core domain of isoleucyl, leucyl, valyl and methioninyl tRNA synthetases; Catalytic ...
21-308
5.46e-04
catalytic core domain of isoleucyl, leucyl, valyl and methioninyl tRNA synthetases; Catalytic core domain of isoleucyl, leucyl, valyl and methioninyl tRNA synthetases. These class I enzymes are all monomers. However, in some species, MetRS functions as a homodimer, as a result of an additional C-terminal domain. These enzymes aminoacylate the 2'-OH of the nucleotide at the 3' of the appropriate tRNA. The core domain is based on the Rossman fold and is responsible for the ATP-dependent formation of the enzyme bound aminoacyl-adenylate. It contains the characteristic class I HIGH and KMSKS motifs, which are involved in ATP binding. Enzymes in this subfamily share an insertion in the core domain, which is subject to both deletions and rearrangements. This editing region hydrolyzes mischarged cognate tRNAs and thus prevents the incorporation of chemically similar amino acids. MetRS has a significantly shorter insertion, which lacks the editing function.
Pssm-ID: 185674 [Multi-domain] Cd Length: 312 Bit Score: 42.02 E-value: 5.46e-04
Cysteinyl-tRNA synthetase [Translation, ribosomal structure and biogenesis]; Cysteinyl-tRNA ...
27-120
7.69e-03
Cysteinyl-tRNA synthetase [Translation, ribosomal structure and biogenesis]; Cysteinyl-tRNA synthetase is part of the Pathway/BioSystem: Aminoacyl-tRNA synthetases
Pssm-ID: 439985 [Multi-domain] Cd Length: 465 Bit Score: 38.93 E-value: 7.69e-03
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.
Click on the triangle to view details about the feature, including a multiple sequence alignment
of your query sequence and the protein sequences used to curate the domain model,
where hash marks (#) above the aligned sequences show the location of the conserved feature residues.
The thumbnail image, if present, provides an approximate view of the feature's location in 3 dimensions.
Click on the triangle for interactive 3D structure viewing options.
Functional characterization of the conserved domain architecture found on the query.
Click here to see more details.
This image shows a graphical summary of conserved domains identified on the query sequence.
The Show Concise/Full Display button at the top of the page can be used to select the desired level of detail: only top scoring hits
(labeled illustration) or all hits
(labeled illustration).
Domains are color coded according to superfamilies
to which they have been assigned. Hits with scores that pass a domain-specific threshold
(specific hits) are drawn in bright colors.
Others (non-specific hits) and
superfamily placeholders are drawn in pastel colors.
if a domain or superfamily has been annotated with functional sites (conserved features),
they are mapped to the query sequence and indicated through sets of triangles
with the same color and shade of the domain or superfamily that provides the annotation. Mouse over the colored bars or triangles to see descriptions of the domains and features.
click on the bars or triangles to view your query sequence embedded in a multiple sequence alignment of the proteins used to develop the corresponding domain model.
The table lists conserved domains identified on the query sequence. Click on the plus sign (+) on the left to display full descriptions, alignments, and scores.
Click on the domain model's accession number to view the multiple sequence alignment of the proteins used to develop the corresponding domain model.
To view your query sequence embedded in that multiple sequence alignment, click on the colored bars in the Graphical Summary portion of the search results page,
or click on the triangles, if present, that represent functional sites (conserved features)
mapped to the query sequence.
Concise Display shows only the best scoring domain model, in each hit category listed below except non-specific hits, for each region on the query sequence.
(labeled illustration) Standard Display shows only the best scoring domain model from each source, in each hit category listed below for each region on the query sequence.
(labeled illustration) Full Display shows all domain models, in each hit category below, that meet or exceed the RPS-BLAST threshold for statistical significance.
(labeled illustration) Four types of hits can be shown, as available,
for each region on the query sequence:
specific hits meet or exceed a domain-specific e-value threshold
(illustrated example)
and represent a very high confidence that the query sequence belongs to the same protein family as the sequences use to create the domain model
non-specific hits
meet or exceed the RPS-BLAST threshold for statistical significance (default E-value cutoff of 0.01, or an E-value selected by user via the
advanced search options)
the domain superfamily to which the specific and non-specific hits belong
multi-domain models that were computationally detected and are likely to contain multiple single domains
Retrieve proteins that contain one or more of the domains present in the query sequence, using the Conserved Domain Architecture Retrieval Tool
(CDART).
Modify your query to search against a different database and/or use advanced search options
