HAMAP rule MF_03179
General rule information
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Accession | MF_03179 |
Dates | 17-OCT-2013 (Created)
1-JUN-2023 (Last updated, Version 16) |
Name | GCP1_TsaD |
Scope(s) |
Eukaryota |
Template(s) | P43122 (QRI7_YEAST); O22145 (OSGP2_ARATH); O05518 (TSAD_BACSU); P05852 (TSAD_ECOLI); P36175 (TSAD_MANHA); Q2FWL2 (TSAD_STAA8); [ Recover all ] |
Triggered by |
case c? <OC:Eukaryota>
HAMAP; MF_01445 (Get profile general information and statistics) end case
|
Propagated annotation
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Identifier, protein and gene names
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case <OC:Fungi> | |
Identifier | QRI7 |
Protein name | RecName: Full=tRNA N6-adenosine threonylcarbamoyltransferase, mitochondrial; EC=2.3.1.234; AltName: Full=N6-L-threonylcarbamoyladenine synthase; Short=t(6)A synthase; AltName: Full=t(6)A37 threonylcarbamoyladenosine biosynthesis protein AltName: Full=tRNA threonylcarbamoyladenosine biosynthesis protein |
else case <OC:Vertebrata> | |
Identifier | OSGL1 |
Protein name | RecName: Full=tRNA N6-adenosine threonylcarbamoyltransferase, mitochondrial; EC=2.3.1.234; AltName: Full=N6-L-threonylcarbamoyladenine synthase; Short=t(6)A synthase; AltName: Full=t(6)A37 threonylcarbamoyladenosine biosynthesis protein AltName: Full=tRNA threonylcarbamoyladenosine biosynthesis protein |
else | |
Identifier | OSGP2 |
Protein name | RecName: Full=Probable tRNA N6-adenosine threonylcarbamoyltransferase, mitochondrial; EC=2.3.1.234; AltName: Full=N6-L-threonylcarbamoyladenine synthase; Short=t(6)A synthase; AltName: Full=t(6)A37 threonylcarbamoyladenosine biosynthesis protein AltName: Full=tRNA threonylcarbamoyladenosine biosynthesis protein |
end case | |
case <OC:Vertebrata> | |
Protein name | + AltName: Full=O-sialoglycoprotein endopeptidase-like protein 1; |
Gene name | Name=OSGEPL1; |
else case <OC:Viridiplantae> | |
Protein name | + AltName: Full=Glycoprotease 1; |
Gene name | Name=GCP1; |
else case <OC:Caenorhabditis> | |
Gene name | Name=osgl-1; |
else case <OC:Saccharomycotina> | |
Gene name | Name=QRI7; |
end case |
Comments
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FUNCTION | Required for the formation of a threonylcarbamoyl group on adenosine at position 37 (t(6)A37) in mitochondrial tRNAs that read codons beginning with adenine. Probably involved in the transfer of the threonylcarbamoyl moiety of threonylcarbamoyl-AMP (TC-AMP) to the N6 group of A37. Involved in mitochondrial genome maintenance. |
CATALYTIC ACTIVITY | Reaction=adenosine(37) in tRNA + L-threonylcarbamoyladenylate = AMP + H(+) + N(6)-L-threonylcarbamoyladenosine(37) in tRNA; Xref=Rhea:RHEA:37059, Rhea:RHEA-COMP:10162, Rhea:RHEA-COMP:10163, ChEBI:CHEBI:15378, ChEBI:CHEBI:73682, ChEBI:CHEBI:74411, ChEBI:CHEBI:74418, ChEBI:CHEBI:456215; EC=2.3.1.234; |
COFACTOR | Name=a divalent metal cation; Xref=ChEBI:CHEBI:60240; Note=Binds 1 divalent metal cation per subunit.; |
case <OC:Vertebrata> | |
SUBUNIT | Monomer. |
else | |
SUBUNIT | Homodimer. |
end case | |
SUBCELLULAR LOCATION | Mitochondrion. |
SIMILARITY | Belongs to the KAE1 / TsaD family. |
case not <AnyFeature:TransitM> | |
MISCELLANEOUS | This protein may be expected to contain an N-terminal transit peptide but none has been predicted. |
end case |
Keywords
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Gene Ontology
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GO:0005739; Cellular component:mitochondrion |
GO:0016747; Molecular function:acyltransferase activity, transferring groups other than amino-acyl groups |
GO:0002949; Biological process:tRNA threonylcarbamoyladenosine modification |
Cross-references
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PROSITE | PS01016; GLYCOPROTEASE; 1; |
Pfam | PF00814; Peptidase_M22; 1; |
PRINTS | PR00789; OSIALOPTASE; 1; |
NCBIfam | TIGR00329; Gcp_kae1; 1; |
NCBIfam | TIGR03723; T6A_YgjD; 1; |
General | TransitM; -; 0-1; |
Features
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From: QRI7_YEAST (P43122) | ||||||||||||
Key | From | To | Description | Tag | Condition | FTGroup | ||||||
BINDING | 170 | 174 | /ligand="substrate" | x-x-S-G-x | ||||||||
BINDING | 328 | 329 | /ligand="substrate" | x-N | ||||||||
BINDING | 145 | 145 | /ligand="a divalent metal cation" /ligand_id="ChEBI:CHEBI:60240" |
H | ||||||||
BINDING | 149 | 149 | /ligand="a divalent metal cation" /ligand_id="ChEBI:CHEBI:60240" |
H | ||||||||
BINDING | 361 | 361 | /ligand="a divalent metal cation" /ligand_id="ChEBI:CHEBI:60240" |
D | ||||||||
BINDING | 203 | 203 | /ligand="substrate" | D | ||||||||
BINDING | 217 | 217 | /ligand="substrate" | [GA] | ||||||||
BINDING | 221 | 221 | /ligand="substrate" | [DE] | ||||||||
BINDING | 360 | 360 | /ligand="substrate" | [ST] | ||||||||
From: OSGL1_HUMAN (Q9H4B0) | ||||||||||||
Key | From | To | Description | Tag | Condition | FTGroup | ||||||
case <OC:Mammalia> | ||||||||||||
MOD_RES | 74 | 74 | /note="N6-acetyllysine" | K | ||||||||
MOD_RES | 140 | 140 | /note="N6-acetyllysine" | K | ||||||||
MOD_RES | 203 | 203 | /note="N6-acetyllysine" | K | ||||||||
MOD_RES | 230 | 230 | /note="N6-acetyllysine" | K | ||||||||
MOD_RES | 240 | 240 | /note="N6-acetyllysine" | K | ||||||||
MOD_RES | 299 | 299 | /note="N6-acetyllysine" | K | ||||||||
end case |
Additional information
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Size range | 376-560 amino acids |
Related rules |
None |
Fusion | Nter: None Cter: None |
Comments | The well-known t(6)A modification appears to be a hydrolyzed artifact of natural cyclic t(6)A (ct(6)A) that occurs during the preparation and handling of tRNA in E.coli, B.subtilis and many other species including fungi and plants (PubMed:23242255). In these species, the t(6)A modification is processed further by dehydration into ct(6)A, a reaction catalyzed by tRNA threonylcarbamoyladenosine dehydratase (TcdA). |