Q6AEX8 (SYP_LEIXX) Reviewed, UniProtKB/Swiss-Prot

Names and origin

Protein names

Recommended name:
Proline--tRNA ligase
EC=6.1.1.15

Alternative name(s):
Prolyl-tRNA synthetase
Short name=ProRS

Gene names

Name:	proS
Ordered Locus Names:	Lxx12210

Organism

Leifsonia xyli subsp. xyli (strain CTCB07) [Complete proteome] [HAMAP]

Taxonomic identifier

281090 [NCBI]

Taxonomic lineage

Bacteria › Actinobacteria › Actinobacteridae › Actinomycetales › Micrococcineae › Microbacteriaceae › Leifsonia

Protein attributes

Sequence length	590 AA.
Sequence status	Complete.
Protein existence	Inferred from homology

General annotation (Comments)

Function	Catalyzes the attachment of proline to tRNA(Pro) in a two-step reaction: proline is first activated by ATP to form Pro-AMP and then transferred to the acceptor end of tRNA(Pro). As ProRS can inadvertently accommodate and process non-cognate amino acids such as alanine and cysteine, to avoid such errors it has two additional distinct editing activities against alanine. One activity is designated as 'pretransfer' editing and involves the tRNA(Pro)-independent hydrolysis of activated Ala-AMP. The other activity is designated 'posttransfer' editing and involves deacylation of mischarged Ala-tRNA(Pro). The misacylated Cys-tRNA(Pro) is not edited by ProRS By similarity. HAMAP MF_01569
Catalytic activity	ATP + L-proline + tRNA(Pro) = AMP + diphosphate + L-prolyl-tRNA(Pro). HAMAP MF_01569
Subunit structure	Homodimer By similarity. HAMAP MF_01569
Subcellular location	Cytoplasm By similarity HAMAP MF_01569.
Domain	Consists of three domains: the N-terminal catalytic domain, the editing domain and the C-terminal anticodon-binding domain By similarity. HAMAP MF_01569
Sequence similarities	Belongs to the class-II aminoacyl-tRNA synthetase family. ProS type 1 subfamily.

Ontologies

Keywords
Biological process	Protein biosynthesis
Cellular component	Cytoplasm
Ligand	ATP-binding Nucleotide-binding
Molecular function	Aminoacyl-tRNA synthetase Ligase
Technical term	Complete proteome
Gene Ontology (GO)
Biological process	prolyl-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 proline-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 – 590	590	Proline--tRNA ligase HAMAP MF_01569		PRO_0000248715

Sequences

	Sequence		Length	Mass (Da)
	Q6AEX8 [UniParc]. Last modified September 13, 2004. Version 1. Checksum: DB78C50088703BFD	FASTA	590	63,697
	10 20 30 40 50 60 MPTRLTNYFL RTLREDPADA EVTSHRLLVR AGYIRRQAPG VFAWLPLGLR VKAKIERIIR 70 80 90 100 110 120 EELAAAGAHE VHFPALLPRE PYEITGRWEE YGDALFHLKD RKGADYLLAP THEEAFTLLV 130 140 150 160 170 180 KDLYSSYKDL PLTIFQIQDK YRDEARPRAG LLRGREFTMK DAYSFDATDA GLDVSYQAQR 190 200 210 220 230 240 DAYERIFARL GLDFVIVQAD AGAMGGSRSE EFLHPTPIGE DTFVRSAGGY AANVEAFTTV 250 260 270 280 290 300 APPARPFEGL PSPEVHDTPN APTIQALVEV ANEQSPRPDG RVWTAADTLK NVVLALTHLD 310 320 330 340 350 360 GTRELVVVGL PGDREVDLKR AEVAFAPAGV EAATEDDFAA NPGLVKGYIG PWSAGGPVLG 370 380 390 400 410 420 EEAATGLRFL VDLRVVDGSG WITGANLPGK HVFGLVAGRD FDWDGTVEVA EVKAGDPAPD 430 440 450 460 470 480 GSGPVELARG MEIGHVFQLG RKYADALGLT VLDENGKLVT VTMGSYGIGV TRILAIIAEE 490 500 510 520 530 540 NNDDKGLVWP EAVAPFDVHV VAAGREQVAF DVAEQAVAQL EAVGLDVLYD DRPKVSPGVK 550 560 570 580 590 FGDAELIGVP RVLVVGRGAA QGEVELWDRR GGNHTTLPLS EAVAALTTSS

References

[1]

"The genome sequence of the Gram-positive sugarcane pathogen Leifsonia xyli subsp. xyli." Monteiro-Vitorello C.B., Camargo L.E.A., Van Sluys M.A., Kitajima J.P., Truffi D., do Amaral A.M., Harakava R., de Oliveira J.C.F., Wood D., de Oliveira M.C., Miyaki C.Y., Takita M.A., da Silva A.C.R., Furlan L.R., Carraro D.M., Camarotte G., Almeida N.F. Jr., Carrer H. , Coutinho L.L., El-Dorry H.A., Ferro M.I.T., Gagliardi P.R., Giglioti E., Goldman M.H.S., Goldman G.H., Kimura E.T., Ferro E.S., Kuramae E.E., Lemos E.G.M., Lemos M.V.F., Mauro S.M.Z., Machado M.A., Marino C.L., Menck C.F., Nunes L.R., Oliveira R.C., Pereira G.G., Siqueira W., de Souza A.A., Tsai S.M., Zanca A.S., Simpson A.J.G., Brumbley S.M., Setubal J.C. Mol. Plant Microbe Interact. 17:827-836(2004) [PubMed: 15305603] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: CTCB07.

Cross-references

Sequence databases
EMBL GenBank DDBJ	AE016822 Genomic DNA. Translation: AAT89067.1.
RefSeq	YP_062172.1. NC_006087.1.
3D structure databases
ProteinModelPortal	Q6AEX8.
ModBase	Search...
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Genome annotation databases
GeneID	2939517.
GenomeReviews	Gene locus Lxx12210 in contig AE016822_GR.
KEGG	lxx:Lxx12210.
NMPDR	fig|281090.3.peg.689.
PATRIC	22336033. VBILeiXyl11655_1265.
Organism-specific databases
CMR	Search...
Phylogenomic databases
HOGENOM	HBG403504.
OMA	IQPAELW.
ProtClustDB	PRK09194.
Enzyme and pathway databases
BioCyc	LXYL281090:LXX12210-MONOMER.
Family and domain databases
HAMAP	MF_01569. Pro_tRNA_synth_type1. [Tree]
InterPro	IPR002314. aa-tRNA-synt_IIb_cons-dom. IPR006195. aa-tRNA-synth_II. IPR004154. Anticodon-bd. IPR002316. Pro-tRNA-synth_IIa. IPR004500. Pro-tRNA-synth_IIa_bac-type. IPR023717. Pro-tRNA-Synthase_IIa_type1. IPR007214. YbaK/aa-tRNA-synth-assoc-dom. [Graphical view]
Gene3D	G3DSA:3.40.50.800. Anticodon_bd. 1 hit.
KO	K01881.
PANTHER	PTHR11451:SF3. PTHR11451:SF3. 1 hit.
Pfam	PF03129. HGTP_anticodon. 1 hit. PF00587. tRNA-synt_2b. 1 hit. PF04073. YbaK. 1 hit. [Graphical view]
PRINTS	PR01046. TRNASYNTHPRO.
SUPFAM	SSF52954. Anticodon_bd. 1 hit. SSF55826. YbaK/aa-tRNA-synth-assoc-reg. 1 hit.
TIGRFAMs	TIGR00409. ProS_fam_II. 1 hit.
PROSITE	PS50862. AA_TRNA_LIGASE_II. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

SYP_LEIXX

Accession

Primary (citable) accession number: Q6AEX8

Entry history

Integrated into UniProtKB/Swiss-Prot:	September 5, 2006
Last sequence update:	September 13, 2004
Last modified:	January 25, 2012
This is version 56 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Prokaryotic Protein Annotation Program