Q81XF9 (SYM2_BACAN) Reviewed, UniProtKB/Swiss-Prot

Names and origin

Protein names

Recommended name:
Methionine--tRNA ligase 2
EC=6.1.1.10

Alternative name(s):
Methionyl-tRNA synthetase 2
Short name=MetRS 2

Gene names

Name:	metG2
Ordered Locus Names:	BA_5278, GBAA_5278, BAS4903

Organism

Bacillus anthracis

Taxonomic identifier

1392 [NCBI]

Taxonomic lineage

Bacteria › Firmicutes › Bacillales › Bacillaceae › Bacillus › Bacillus cereus group

Protein attributes

Sequence length	544 AA.
Sequence status	Complete.
Protein existence	Inferred from homology

General annotation (Comments)

Function	Is required not only for elongation of protein synthesis but also for the initiation of all mRNA translation through initiator tRNA(fMet) aminoacylation By similarity. HAMAP MF_00098
Catalytic activity	ATP + L-methionine + tRNA(Met) = AMP + diphosphate + L-methionyl-tRNA(Met). HAMAP MF_00098
Cofactor	Binds 1 zinc ion per subunit By similarity. HAMAP MF_00098
Subunit structure	Monomer By similarity. HAMAP MF_00098
Subcellular location	Cytoplasm HAMAP MF_00098.
Sequence similarities	Belongs to the class-I aminoacyl-tRNA synthetase family. MetG type 1 subfamily.

Ontologies

Keywords
Biological process	Protein biosynthesis
Cellular component	Cytoplasm
Ligand	ATP-binding Metal-binding Nucleotide-binding Zinc
Molecular function	Aminoacyl-tRNA synthetase Ligase
Technical term	Complete proteome Reference proteome
Gene Ontology (GO)
Biological process	methionyl-tRNA aminoacylation Inferred from electronic annotation. Source: InterPro
Cellular component	cytoplasm Inferred from electronic annotation. Source: UniProtKB-SubCell
Molecular function	ATP binding Inferred from electronic annotation. Source: UniProtKB-KW metal ion binding Inferred from electronic annotation. Source: UniProtKB-KW methionine-tRNA ligase activity Inferred from electronic annotation. Source: EC
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 544	544	Methionine--tRNA ligase 2 HAMAP MF_00098		PRO_0000139098
Regions
	Motif	10 – 20	11	"HIGH" region HAMAP MF_00098
	Motif	329 – 333	5	"KMSKS" region HAMAP MF_00098
Sites
	Metal binding	141	1	Zinc By similarity
	Metal binding	144	1	Zinc By similarity
	Metal binding	153	1	Zinc By similarity
	Metal binding	156	1	Zinc By similarity
	Binding site	332	1	ATP By similarity

Sequences

	Sequence		Length	Mass (Da)
	Q81XF9 [UniParc]. Last modified June 1, 2003. Version 1. Checksum: 74CE88873970DC34	FASTA	544	62,879
	10 20 30 40 50 60 MSIFIGGAWP YANGSLHLGH IASLLPGDIL ARYYRAKGEN VLYVSGSDCN GTPIAIRAKQ 70 80 90 100 110 120 EGVTAKEIAN KYHEEFERCF RNLGFTYDCY TRTDSEHHHE TVQNVFLRLL EEGHIYKKTV 130 140 150 160 170 180 EQAYCETCTQ FLPDCYVEGV CPHCHEEARG DQCDACSAIL DPLDLLEKKC KLCGSTPSIQ 190 200 210 220 230 240 ETEHFYFALH TFQEQIKRAV EIAKQTGTWR DNAIQLTERY VKEGLLDRAV SRDLPIGVPI 250 260 270 280 290 300 PVEGYEDKKI YVWIEAVTGY YSASKHWAEE TGKDDREFWD GEAKTYYVHG KDNIPFHSVI 310 320 330 340 350 360 WPAVLLGIGE GTIPRHIVSN EYLTVEKRKL STSKNWAVWV PDILERYDPD SIRYFLIVNA 370 380 390 400 410 420 PENRDTDFSW REFIYSHNSE LLGAYGNFVN RTLKFIEKYY GGIMPKGSID VELKDKIERL 430 440 450 460 470 480 YKHVGEAIEQ TKFKVALESI FDAVRFANKY FDERQPWKER EDDPVSCEET IYNCVYLIAN 490 500 510 520 530 540 FANLLEPFLP FSSERIRNTL SIVNRNWEPQ HTLPSRIDSV QPLFERIDVK QIECELEKLY GAVK

References

[1]	"The genome sequence of Bacillus anthracis Ames and comparison to closely related bacteria." Read T.D., Peterson S.N., Tourasse N.J., Baillie L.W., Paulsen I.T., Nelson K.E., Tettelin H., Fouts D.E., Eisen J.A., Gill S.R., Holtzapple E.K., Okstad O.A., Helgason E., Rilstone J., Wu M., Kolonay J.F., Beanan M.J., Dodson R.J. , Brinkac L.M., Gwinn M.L., DeBoy R.T., Madpu R., Daugherty S.C., Durkin A.S., Haft D.H., Nelson W.C., Peterson J.D., Pop M., Khouri H.M., Radune D., Benton J.L., Mahamoud Y., Jiang L., Hance I.R., Weidman J.F., Berry K.J., Plaut R.D., Wolf A.M., Watkins K.L., Nierman W.C., Hazen A., Cline R.T., Redmond C., Thwaite J.E., White O., Salzberg S.L., Thomason B., Friedlander A.M., Koehler T.M., Hanna P.C., Kolstoe A.-B., Fraser C.M. Nature 423:81-86(2003) [PubMed: 12721629] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: Ames / isolate Porton.
[2]	"Bacillus anthracis comparative genomics." Ravel J., Rasko D.A., Shumway M.F., Jiang L., Cer R.Z., Federova N.B., Wilson M., Stanley S., Decker S., Read T.D., Salzberg S.L., Fraser C.M. Submitted (MAY-2004) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: Ames ancestor.
[3]	"Complete genome sequence of Bacillus anthracis Sterne." Brettin T.S., Bruce D., Challacombe J.F., Gilna P., Han C., Hill K., Hitchcock P., Jackson P., Keim P., Longmire J., Lucas S., Okinaka R., Richardson P., Rubin E., Tice H. Submitted (JAN-2004) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: Sterne.
+	Additional computationally mapped references.

Cross-references

Sequence databases
EMBL GenBank DDBJ	AE016879 Genomic DNA. Translation: AAP28943.1. AE017334 Genomic DNA. Translation: AAT34410.1. AE017225 Genomic DNA. Translation: AAT57194.1.
RefSeq	NP_847457.1. NC_003997.3. YP_021935.1. NC_007530.2. YP_031144.1. NC_005945.1.
3D structure databases
ProteinModelPortal	Q81XF9.
ModBase	Search...
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Genome annotation databases
EnsemblBacteria	EBBACT00000012382; EBBACP00000012138; EBBACG00000012374. EBBACT00000016381; EBBACP00000016002; EBBACG00000016373. EBBACT00000019669; EBBACP00000019154; EBBACG00000019660.
GeneID	1084759. 2818346. 2852523.
GenomeReviews	Gene locus BA_5278 in contig AE016879_GR. Gene locus BAS4903 in contig AE017225_GR. Gene locus GBAA_5278 in contig AE017334_GR.
KEGG	ban:BA_5278. bar:GBAA_5278. bat:BAS4903.
TIGR	BA_5278. GBAA_5278.
Phylogenomic databases
GeneTree	EBGT00070000031891.
HOGENOM	HBG721667.
OMA	CGNQLDP.
ProtClustDB	PRK12268.
Enzyme and pathway databases
BioCyc	BANT260799:BAS4903-MONOMER. BANT261594:GBAA5278-MONOMER.
Family and domain databases
HAMAP	MF_00098. Met_tRNA_synth_type1. [Tree]
InterPro	IPR015413. aa-tRNA-synt_I. IPR001412. aa-tRNA-synth_I_CS. IPR014758. Met-tRNA_synth. IPR023458. Met-tRNA_synth_1. IPR014729. Rossmann-like_a/b/a_fold. IPR009080. tRNAsynth_1a_anticodon-bd. IPR013155. V/L/I-tRNA-synth_anticodon-bd. [Graphical view]
Gene3D	G3DSA:3.40.50.620. Rossmann-like_a/b/a_fold. 2 hits.
KO	K01874.
Pfam	PF08264. Anticodon_1. 1 hit. PF09334. tRNA-synt_1g. 1 hit. [Graphical view]
PRINTS	PR01041. TRNASYNTHMET.
SUPFAM	SSF47323. tRNAsyn_1a_bind. 1 hit.
TIGRFAMs	TIGR00398. MetG. 1 hit.
PROSITE	PS00178. AA_TRNA_LIGASE_I. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

SYM2_BACAN

Accession

Primary (citable) accession number: Q81XF9
Secondary accession number(s): Q6HR94, Q6KKK9

Entry history

Integrated into UniProtKB/Swiss-Prot:	July 5, 2005
Last sequence update:	June 1, 2003
Last modified:	January 25, 2012
This is version 65 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Prokaryotic Protein Annotation Program