ID   SYL_HAEIN               Reviewed;         861 AA.
AC   P43827;
DT   01-NOV-1995, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1995, sequence version 1.
DT   03-AUG-2022, entry version 145.
DE   RecName: Full=Leucine--tRNA ligase {ECO:0000255|HAMAP-Rule:MF_00049};
DE            EC=6.1.1.4 {ECO:0000255|HAMAP-Rule:MF_00049};
DE   AltName: Full=Leucyl-tRNA synthetase {ECO:0000255|HAMAP-Rule:MF_00049};
DE            Short=LeuRS {ECO:0000255|HAMAP-Rule:MF_00049};
GN   Name=leuS {ECO:0000255|HAMAP-Rule:MF_00049}; OrderedLocusNames=HI_0921;
OS   Haemophilus influenzae (strain ATCC 51907 / DSM 11121 / KW20 / Rd).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Pasteurellales;
OC   Pasteurellaceae; Haemophilus.
OX   NCBI_TaxID=71421;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 51907 / DSM 11121 / KW20 / Rd;
RX   PubMed=7542800; DOI=10.1126/science.7542800;
RA   Fleischmann R.D., Adams M.D., White O., Clayton R.A., Kirkness E.F.,
RA   Kerlavage A.R., Bult C.J., Tomb J.-F., Dougherty B.A., Merrick J.M.,
RA   McKenney K., Sutton G.G., FitzHugh W., Fields C.A., Gocayne J.D.,
RA   Scott J.D., Shirley R., Liu L.-I., Glodek A., Kelley J.M., Weidman J.F.,
RA   Phillips C.A., Spriggs T., Hedblom E., Cotton M.D., Utterback T.R.,
RA   Hanna M.C., Nguyen D.T., Saudek D.M., Brandon R.C., Fine L.D.,
RA   Fritchman J.L., Fuhrmann J.L., Geoghagen N.S.M., Gnehm C.L., McDonald L.A.,
RA   Small K.V., Fraser C.M., Smith H.O., Venter J.C.;
RT   "Whole-genome random sequencing and assembly of Haemophilus influenzae
RT   Rd.";
RL   Science 269:496-512(1995).
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + L-leucine + tRNA(Leu) = AMP + diphosphate + L-leucyl-
CC         tRNA(Leu); Xref=Rhea:RHEA:11688, Rhea:RHEA-COMP:9613, Rhea:RHEA-
CC         COMP:9622, ChEBI:CHEBI:30616, ChEBI:CHEBI:33019, ChEBI:CHEBI:57427,
CC         ChEBI:CHEBI:78442, ChEBI:CHEBI:78494, ChEBI:CHEBI:456215; EC=6.1.1.4;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00049};
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00049}.
CC   -!- SIMILARITY: Belongs to the class-I aminoacyl-tRNA synthetase family.
CC       {ECO:0000255|HAMAP-Rule:MF_00049}.
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DR   EMBL; L42023; AAC22581.1; -; Genomic_DNA.
DR   PIR; H64102; H64102.
DR   RefSeq; NP_439081.1; NC_000907.1.
DR   RefSeq; WP_005693268.1; NC_000907.1.
DR   AlphaFoldDB; P43827; -.
DR   SMR; P43827; -.
DR   STRING; 71421.HI_0921; -.
DR   EnsemblBacteria; AAC22581; AAC22581; HI_0921.
DR   KEGG; hin:HI_0921; -.
DR   PATRIC; fig|71421.8.peg.962; -.
DR   eggNOG; COG0495; Bacteria.
DR   HOGENOM; CLU_004427_0_0_6; -.
DR   OMA; TFMVLAP; -.
DR   PhylomeDB; P43827; -.
DR   BioCyc; HINF71421:G1GJ1-960-MON; -.
DR   Proteomes; UP000000579; Chromosome.
DR   GO; GO:0005829; C:cytosol; IBA:GO_Central.
DR   GO; GO:0002161; F:aminoacyl-tRNA editing activity; IEA:InterPro.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0004823; F:leucine-tRNA ligase activity; IBA:GO_Central.
DR   GO; GO:0006429; P:leucyl-tRNA aminoacylation; IBA:GO_Central.
DR   Gene3D; 3.40.50.620; -; 2.
DR   HAMAP; MF_00049_B; Leu_tRNA_synth_B; 1.
DR   InterPro; IPR001412; aa-tRNA-synth_I_CS.
DR   InterPro; IPR002300; aa-tRNA-synth_Ia.
DR   InterPro; IPR002302; Leu-tRNA-ligase.
DR   InterPro; IPR025709; Leu_tRNA-synth_edit.
DR   InterPro; IPR013155; M/V/L/I-tRNA-synth_anticd-bd.
DR   InterPro; IPR014729; Rossmann-like_a/b/a_fold.
DR   InterPro; IPR009080; tRNAsynth_Ia_anticodon-bd.
DR   InterPro; IPR009008; Val/Leu/Ile-tRNA-synth_edit.
DR   PANTHER; PTHR43740; PTHR43740; 1.
DR   Pfam; PF08264; Anticodon_1; 1.
DR   Pfam; PF00133; tRNA-synt_1; 3.
DR   Pfam; PF13603; tRNA-synt_1_2; 1.
DR   PRINTS; PR00985; TRNASYNTHLEU.
DR   SUPFAM; SSF47323; SSF47323; 1.
DR   SUPFAM; SSF50677; SSF50677; 1.
DR   TIGRFAMs; TIGR00396; leuS_bact; 1.
DR   PROSITE; PS00178; AA_TRNA_LIGASE_I; 1.
PE   3: Inferred from homology;
KW   Aminoacyl-tRNA synthetase; ATP-binding; Cytoplasm; Ligase;
KW   Nucleotide-binding; Protein biosynthesis; Reference proteome.
FT   CHAIN           1..861
FT                   /note="Leucine--tRNA ligase"
FT                   /id="PRO_0000152023"
FT   MOTIF           42..52
FT                   /note="'HIGH' region"
FT   MOTIF           619..623
FT                   /note="'KMSKS' region"
FT   BINDING         622
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00049"
SQ   SEQUENCE   861 AA;  97751 MW;  EB93304F6B4C8FB7 CRC64;
     MQEQYRPDMI EPKVQQYWAE NKVFKAIKDE SKEKYYCLSM FPYPSGRLHM GHVRNYTIGD
     VISRYQRMLG KNVLQPFGWD AFGLPAEGAA IKNKTAPAKW TYENIAYMKK QLQLLGFGFD
     WDREIATCKP EYYKWEQWFF TELYKKGLVY KKTSTVNWCP NDETVLANEQ VHEGCCWRCD
     TPVEQKEIPQ WFIKITDYAE QLLGGLDTLP QWPDMVKTMQ RNWIGRSEGV EITFDVANTN
     EKVAVYTTRP DTFYGVSYLG IAAAHPLASL AAQNNSELAA FIQEAKNAKV AEADLATMEK
     KGMATGLFAI HPLTGDKLPI WVANFVLMHY GTGAVMAVPA HDQRDFEFAQ KYSLPIKQVI
     APLADEEIDL TKQAFVEHGK LVNSDEFDGK NFDGAFNGIA DKLEKLGVGK RQVNYRLRDW
     GVSRQRYWGA PIPMLTLENG DVVPAPMEDL PIILPEDVVM DGVKSPINAD PNWAKTTFND
     APALKETDTF DTFMESSWYY ARYTCPQYQN GMLDAEEANY WLPVDQYIGG IEHATMHLLY
     FRFFHKLLRD AGFVTSEEPA DKLLCQGMVL ADAFYYTSPT NERIWVSPTQ VTLERDEKGR
     IIKATDPEGR ELVHSGMTKM SKSKNNGIDP QEMVEKYGAD TVRLFMMFAS PAEMTLEWQE
     SGVEGAKRFL GRVWNLVYQY QQNPAKTSLD LTALSAEQKV LRREVHKTIA KVSDDIGRRQ
     TFNTAIAAVM ELMNKLTKAS LDSEQDRAVM AEALSAVVRM LYPITPHICF ELWQALGNES
     AIDTAEWVKA DEAAMVEDEK LIVVQVNGKV RGKVTVATDA DEDTVKTIAF ADENVKKFID
     NQHIVKVIYV VGKLLNVVVK P