ID   GATB_NAEGR              Reviewed;         514 AA.
AC   D2V9W6;
DT   19-OCT-2011, integrated into UniProtKB/Swiss-Prot.
DT   02-MAR-2010, sequence version 1.
DT   25-MAY-2022, entry version 54.
DE   RecName: Full=Glutamyl-tRNA(Gln) amidotransferase subunit B, 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   ORFNames=NAEGRDRAFT_36099;
OS   Naegleria gruberi (Amoeba).
OC   Eukaryota; Discoba; Heterolobosea; Tetramitia; Eutetramitia;
OC   Vahlkampfiidae; Naegleria.
OX   NCBI_TaxID=5762;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 30224 / NEG-M;
RX   PubMed=20211133; DOI=10.1016/j.cell.2010.01.032;
RA   Fritz-Laylin L.K., Prochnik S.E., Ginger M.L., Dacks J.B., Carpenter M.L.,
RA   Field M.C., Kuo A., Paredez A., Chapman J., Pham J., Shu S., Neupane R.,
RA   Cipriano M., Mancuso J., Tu H., Salamov A., Lindquist E., Shapiro H.,
RA   Lucas S., Grigoriev I.V., Cande W.Z., Fulton C., Rokhsar D.S., Dawson S.C.;
RT   "The genome of Naegleria gruberi illuminates early eukaryotic
RT   versatility.";
RL   Cell 140:631-642(2010).
CC   -!- FUNCTION: Allows the formation of correctly charged Gln-tRNA(Gln)
CC       through the transamidation of misacylated Glu-tRNA(Gln) in the
CC       mitochondria. The reaction takes place in the presence of glutamine and
CC       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   -!- 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; GG738859; EFC46319.1; -; Genomic_DNA.
DR   AlphaFoldDB; D2V9W6; -.
DR   SMR; D2V9W6; -.
DR   STRING; 5762.XP_002679063.1; -.
DR   PRIDE; D2V9W6; -.
DR   EnsemblProtists; EFC46319; EFC46319; NAEGRDRAFT_36099.
DR   VEuPathDB; AmoebaDB:NAEGRDRAFT_36099; -.
DR   eggNOG; KOG2438; Eukaryota.
DR   InParanoid; D2V9W6; -.
DR   OMA; ARKWWMG; -.
DR   Proteomes; UP000006671; Unassembled WGS sequence.
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; 1.
DR   TIGRFAMs; TIGR00133; gatB; 1.
DR   PROSITE; PS01234; GATB; 1.
PE   3: Inferred from homology;
KW   ATP-binding; Ligase; Mitochondrion; Nucleotide-binding;
KW   Protein biosynthesis; Reference proteome.
FT   CHAIN           1..514
FT                   /note="Glutamyl-tRNA(Gln) amidotransferase subunit B,
FT                   mitochondrial"
FT                   /id="PRO_0000413287"
SQ   SEQUENCE   514 AA;  57647 MW;  C2815A239AC92FCC CRC64;
     MHTNKKYLHT SGDESVLKGY KPVIGLEIHA QIKSKSKLFS TSSTEFTNSM PNVNVTLFDA
     SFPGTLPSLN EYCIRQAVKT GLAVGGKINL YSQFDRKHYF YPDLPLGYQI TQQFYPLVSE
     GKLRIDIPQG DGTYKPKYIR IARIQVEQDS GKSVHDLDNT LIDLNRAGNP LMEIITYPDL
     NSSLEAELFV KKLQFMLRHI GTCDGNMEEG SLRCDVNVSV YNASAGDHPL SGTRCEVKNI
     SSANNIPRAI DFEIKRHIEL LTNGQKIEQQ TRTFDAKKGE TLLLRSKENI PDYKFFPDPD
     LPYVELTEDY VESVKTTIPS LPDDIVEKLT SEPYNLNFYD ANILLTNNGG VEFFETILHD
     SRWSSKLNPK LVANWIASEL MGLLNASEIT LSDSPVSYIQ IGSIVEAIQH EDISGKMAKK
     IIKIMFDEKS GEMALDIAEK NGWRQITDKN VIGELCDKII AEHPTEVGNL RNGKENVFQF
     LVAQVIKLSK GNASPSLVNQ ILREKATNKP TTTD