GATB_OSTLU
ID GATB_OSTLU Reviewed; 499 AA.
AC A4S450;
DT 19-OCT-2011, integrated into UniProtKB/Swiss-Prot.
DT 15-MAY-2007, sequence version 1.
DT 25-MAY-2022, entry version 81.
DE RecName: Full=Glutamyl-tRNA(Gln) amidotransferase subunit B, chloroplastic/mitochondrial {ECO:0000255|HAMAP-Rule:MF_03147};
DE Short=Glu-AdT subunit B {ECO:0000255|HAMAP-Rule:MF_03147};
DE EC=6.3.5.- {ECO:0000255|HAMAP-Rule:MF_03147};
GN Name=GATB {ECO:0000255|HAMAP-Rule:MF_03147}; ORFNames=OSTLU_17170;
OS Ostreococcus lucimarinus (strain CCE9901).
OC Eukaryota; Viridiplantae; Chlorophyta; Mamiellophyceae; Mamiellales;
OC Bathycoccaceae; Ostreococcus; unclassified Ostreococcus.
OX NCBI_TaxID=436017;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CCE9901;
RX PubMed=17460045; DOI=10.1073/pnas.0611046104;
RA Palenik B., Grimwood J., Aerts A., Rouze P., Salamov A., Putnam N.,
RA Dupont C., Jorgensen R., Derelle E., Rombauts S., Zhou K., Otillar R.,
RA Merchant S.S., Podell S., Gaasterland T., Napoli C., Gendler K.,
RA Manuell A., Tai V., Vallon O., Piganeau G., Jancek S., Heijde M.,
RA Jabbari K., Bowler C., Lohr M., Robbens S., Werner G., Dubchak I.,
RA Pazour G.J., Ren Q., Paulsen I., Delwiche C., Schmutz J., Rokhsar D.,
RA Van de Peer Y., Moreau H., Grigoriev I.V.;
RT "The tiny eukaryote Ostreococcus provides genomic insights into the paradox
RT of plankton speciation.";
RL Proc. Natl. Acad. Sci. U.S.A. 104:7705-7710(2007).
CC -!- FUNCTION: Allows the formation of correctly charged Gln-tRNA(Gln)
CC through the transamidation of misacylated Glu-tRNA(Gln) in chloroplasts
CC and mitochondria. The reaction takes place in the presence of glutamine
CC and ATP through an activated gamma-phospho-Glu-tRNA(Gln).
CC {ECO:0000255|HAMAP-Rule:MF_03147}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=ATP + H2O + L-glutamine + L-glutamyl-tRNA(Gln) = ADP + H(+) +
CC L-glutamate + L-glutaminyl-tRNA(Gln) + phosphate;
CC Xref=Rhea:RHEA:17521, Rhea:RHEA-COMP:9681, Rhea:RHEA-COMP:9684,
CC ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:29985,
CC ChEBI:CHEBI:30616, ChEBI:CHEBI:43474, ChEBI:CHEBI:58359,
CC ChEBI:CHEBI:78520, ChEBI:CHEBI:78521, ChEBI:CHEBI:456216;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_03147};
CC -!- SUBUNIT: Subunit of the heterotrimeric GatCAB amidotransferase (AdT)
CC complex, composed of A, B and C subunits. {ECO:0000255|HAMAP-
CC Rule:MF_03147}.
CC -!- SUBCELLULAR LOCATION: Mitochondrion {ECO:0000255|HAMAP-Rule:MF_03147}.
CC Plastid, chloroplast {ECO:0000255|HAMAP-Rule:MF_03147}.
CC -!- MISCELLANEOUS: This protein may be expected to contain an N-terminal
CC transit peptide but none has been predicted. {ECO:0000255|HAMAP-
CC Rule:MF_03147}.
CC -!- SIMILARITY: Belongs to the GatB/GatE family. GatB subfamily.
CC {ECO:0000255|HAMAP-Rule:MF_03147}.
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DR EMBL; CP000590; ABO98500.1; -; Genomic_DNA.
DR RefSeq; XP_001420207.1; XM_001420170.1.
DR AlphaFoldDB; A4S450; -.
DR SMR; A4S450; -.
DR STRING; 436017.A4S450; -.
DR PRIDE; A4S450; -.
DR EnsemblPlants; ABO98500; ABO98500; OSTLU_17170.
DR GeneID; 5003932; -.
DR Gramene; ABO98500; ABO98500; OSTLU_17170.
DR KEGG; olu:OSTLU_17170; -.
DR eggNOG; KOG2438; Eukaryota.
DR HOGENOM; CLU_019240_0_0_1; -.
DR OMA; ARKWWMG; -.
DR OrthoDB; 898782at2759; -.
DR Proteomes; UP000001568; Chromosome 10.
DR GO; GO:0009507; C:chloroplast; IEA:UniProtKB-SubCell.
DR GO; GO:0030956; C:glutamyl-tRNA(Gln) amidotransferase complex; IEA:UniProtKB-UniRule.
DR GO; GO:0005739; C:mitochondrion; IEA:UniProtKB-SubCell.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR GO; GO:0050567; F:glutaminyl-tRNA synthase (glutamine-hydrolyzing) activity; IEA:UniProtKB-UniRule.
DR GO; GO:0070681; P:glutaminyl-tRNAGln biosynthesis via transamidation; IEA:UniProtKB-UniRule.
DR GO; GO:0032543; P:mitochondrial translation; IEA:UniProtKB-UniRule.
DR Gene3D; 1.10.10.410; -; 1.
DR HAMAP; MF_00121; GatB; 1.
DR InterPro; IPR004413; Apn/Gln-ADT_bsu.
DR InterPro; IPR017959; Asn/Gln-tRNA_amidoTrfase_suB/E.
DR InterPro; IPR006075; Asn/Gln-tRNA_Trfase_suB/E_cat.
DR InterPro; IPR018027; Asn/Gln_amidotransferase.
DR InterPro; IPR003789; Asn/Gln_tRNA_amidoTrase-B-like.
DR InterPro; IPR023168; GatB_Yqey_C_2.
DR InterPro; IPR017958; Gln-tRNA_amidoTrfase_suB_CS.
DR InterPro; IPR014746; Gln_synth/guanido_kin_cat_dom.
DR PANTHER; PTHR11659; PTHR11659; 1.
DR Pfam; PF02934; GatB_N; 1.
DR Pfam; PF02637; GatB_Yqey; 1.
DR SMART; SM00845; GatB_Yqey; 1.
DR SUPFAM; SSF55931; SSF55931; 1.
DR SUPFAM; SSF89095; SSF89095; 2.
DR TIGRFAMs; TIGR00133; gatB; 1.
DR PROSITE; PS01234; GATB; 1.
PE 3: Inferred from homology;
KW ATP-binding; Chloroplast; Ligase; Mitochondrion; Nucleotide-binding;
KW Plastid; Protein biosynthesis; Reference proteome.
FT CHAIN 1..499
FT /note="Glutamyl-tRNA(Gln) amidotransferase subunit B,
FT chloroplastic/mitochondrial"
FT /id="PRO_0000413231"
SQ SEQUENCE 499 AA; 54666 MW; D95B834DF525B779 CRC64;
MTTKQPTRFE AVIGIETHVQ LNSRTKAFCR CAYEYGAEPN TRVCPTCMGH PGTLPVLNSA
VVKKGIAIGT ALGAKIRRTS KFDRKQYFYP DLPKGYQISQ FDEPLCYDGS IDVVLPVEDG
GEVKRVGITR AHLEEDAGKL THAKGEDGKK YSYADFNRAG VALLEIVTEP DLRTGREVAA
YGSELRRIVR FLDACDGDMS RGSMRNDVNV SIRPVGRERF GTKVEVKNMN SFNAMARAID
YEIARQEELI RSGRGDEIVQ ETRTWDEAAQ KTVAMRKKEG LADYRYFPEP DIPKLRLSEE
FISNVVASMP ELPSMVRARY AALGLPPADV QVLVEDKELV TYFDAALSSS AKPSAKQVAN
WLTGDIMAHL KNSKMENVSQ LPLSPEALGE FCAMIDAGEI SGKIGKDLLP ELLEKGGSAK
KLVADRGLSQ VSDPREIEAL VDGVLEANAG QLEQYRAGKT KLKGFFVGAC LKASGGRANP
SLVDRILQAK LDGVPIDVA
