Reviewed, UniProtKB/Swiss-Prot B7JJ97 (SYP_BACC0)

Names and origin

Protein names

Recommended name:
    Prolyl-tRNA synthetase
    EC=6.1.1.15
Alternative name(s):
    Proline--tRNA ligase
      Short name=ProRS

Gene names

Name:	proS
Ordered Locus Names:	BCAH820_3831

Organism

Bacillus cereus (strain AH820) [Complete proteome] [HAMAP]

Taxonomic identifier

405535 [NCBI]

Taxonomic lineage

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

Protein attributes

Sequence length	566 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is not processed.
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.
Catalytic activity	ATP + L-proline + tRNA(Pro) = AMP + diphosphate + L-prolyl-tRNA(Pro). HAMAP MF_01569
Subunit structure	Homodimer By similarity.
Subcellular location	Cytoplasm By similarity.
Domain	Consists of three domains: the N-terminal catalytic domain, the editing domain and the C-terminal anticodon-binding domain By similarity.
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: HAMAP
Cellular component	cytoplasm Inferred from electronic annotation. Source: UniProtKB-SubCell
Molecular function	ATP binding Inferred from electronic annotation. Source: HAMAP proline-tRNA ligase activity Inferred from electronic annotation. Source: HAMAP
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 566	566	Prolyl-tRNA synthetase HAMAP MF_01569		PRO_1000199352

Sequences

	Sequence		Length	Mass (Da)
	B7JJ97-1 [UniParc]. Last modified February 10, 2009. Version 1. Checksum: 5953A84E3E4C1108	FASTA	566	63,179
	10 20 30 40 50 60 MKQSMVFSPT LREVPADAEI KSHQLLLRAG FMRQNASGIY SFLPFGLKVL HKVERIVREE 70 80 90 100 110 120 MERAGAVELL MPAMQAAELW QESGRWYSYG SELMRMKDRN AREFALGATH EEVITDLVRD 130 140 150 160 170 180 EVKSYKKLPL TLYQIQTKFR DEQRPRFGLL RGREFLMKDA YSFHATQESL DEVYDRLYKA 190 200 210 220 230 240 YSNIFARCGL NFRAVIADSG AMGGKDTHEF MVLSDVGEDT IAYSDTSDYA ANIEMAPVVA 250 260 270 280 290 300 TYTKSDEAEK ELEKVATPDQ KAIEEVSAFL NIEADKCIKS MVFKVDEKLV VVLVRGDHEV 310 320 330 340 350 360 NDVKVKNVYG ASVVELASHE EVKELLNCEV GSLGPIGVNG DIEIIADHAV ASIVNGCSGA 370 380 390 400 410 420 NEEGFHYVNV NPERDFKVSQ YTDLRFIQEG DQSPDGNGTI LFARGIEVGH VFKLGTRYSE 430 440 450 460 470 480 AMNATFLDEN GKTQPLIMGC YGIGVSRTVA AIAEQFNDEN GLVWPKAVAP FHVHVIPVNM 490 500 510 520 530 540 KSDAQREMGE NIYNSLQEQG YEVLLDDRAE RAGVKFADAD LFGLPVRVTV GKKADEGIVE 550 560 VKVRATGESE EVKVEELQTY IANILK

References

[1]	"Genome sequence of Bacillus cereus AH820." Dodson R.J., Durkin A.S., Rosovitz M.J., Rasko D.A., Hoffmaster A., Ravel J., Sutton G. Submitted (OCT-2008) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].

Cross-references

Sequence databases
EMBLGenBankDDBJ	CP001283 Genomic DNA. Translation: ACK88107.1.
RefSeq	YP_002452781.1.
3D structure databases
ModBase	Search...
Genome annotation databases
GeneID	7188922.
GenomeReviews	Gene locus BCAH820_3831 in contig CP001283_GR.
KEGG	bcu:BCAH820_3831.
Organism-specific databases
CMR	Search...
Family and domain databases
HAMAP	MF_01569. [Tree]
InterPro	IPR002314. aa-tRNA-synt_IIb_cons-reg. IPR006195. aa-tRNA-synth_II_cons-reg. IPR004154. Anticodon_bd. IPR004500. Pro-tRNA-synth_IIa_bac. IPR002316. Pro-tRNA-synth_IIa_cons-reg. IPR007214. YbaK/aa-tRNA-synth-assoc-reg. [Graphical view]
Gene3D	G3DSA:3.40.50.800. Anticodon_bd. 1 hit.
Pfam	PF03129. HGTP_anticodon. 1 hit. PF00587. tRNA-synt_2b. 1 hit. PF04073. YbaK. 1 hit. [Graphical view]
PRINTS	PR01046. TRNASYNTHPRO.
TIGRFAMs	TIGR00409. proS_fam_II. 1 hit.
PROSITE	PS50862. AA_TRNA_LIGASE_II. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

SYP_BACC0

Accession

Primary (citable) accession number: B7JJ97

Entry history

Integrated into UniProtKB/Swiss-Prot:	April 14, 2009
Last sequence update:	February 10, 2009
Last modified:	July 28, 2009
This is version 7 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

HAMAP (High-quality Automated and Manual Annotation of microbial Proteomes)