Reviewed, UniProtKB/Swiss-Prot Q492S4 (SYS_BLOPB)

Names and origin

Protein names

Recommended name:
    Seryl-tRNA synthetase
    EC=6.1.1.11
Alternative name(s):
    Seryl-tRNA(Ser/Sec) synthetase
    Serine--tRNA ligase
      Short name=SerRS

Gene names

Name:	serS
Ordered Locus Names:	BPEN_395

Organism

Blochmannia pennsylvanicus (strain BPEN) [Complete proteome] [HAMAP]

Taxonomic identifier

291272 [NCBI]

Taxonomic lineage

Bacteria › Proteobacteria › Gammaproteobacteria › Enterobacteriales › Enterobacteriaceae › ant endosymbionts › Candidatus Blochmannia

Protein attributes

Sequence length	428 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 serine to tRNA(Ser). Is also able to aminoacylate tRNA(Sec) with serine, to form the misacylated tRNA L-seryl-tRNA(Sec), which will be further converted into selenocysteinyl-tRNA(Sec) By similarity.
Catalytic activity	ATP + L-serine + tRNA(Ser) = AMP + diphosphate + L-seryl-tRNA(Ser). HAMAP MF_00176 ATP + L-serine + tRNA(Sec) = AMP + diphosphate + L-seryl-tRNA(Sec). HAMAP MF_00176
Pathway	Aminoacyl-tRNA biosynthesis; selenocysteinyl-tRNA(Sec) biosynthesis; L-seryl-tRNA(Sec) from L-serine and tRNA(Sec): step 1/1. HAMAP MF_00176
Subunit structure	Homodimer. The tRNA molecule binds across the dimer By similarity.
Subcellular location	Cytoplasm By similarity.
Domain	Consists of two distinct domains, a catalytic core and a N-terminal extension that is involved in tRNA binding By similarity.
Sequence similarities	Belongs to the class-II aminoacyl-tRNA synthetase family. Type-1 seryl-tRNA synthetase 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	selenocysteine biosynthetic process Inferred from electronic annotation. Source: HAMAP seryl-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 serine-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 – 428	428	Seryl-tRNA synthetase HAMAP MF_00176		PRO_1000019620
Regions
	Nucleotide binding	266 – 268	3	ATP By similarity
	Nucleotide binding	353 – 356	4	ATP By similarity
	Region	235 – 237	3	Serine binding By similarity
Sites
	Binding site	289	1	Serine By similarity
	Binding site	389	1	Serine By similarity

Sequences

	Sequence		Length	Mass (Da)
	Q492S4-1 [UniParc]. Last modified September 13, 2005. Version 1. Checksum: 8F15902A6680B518	FASTA	428	49,049
	10 20 30 40 50 60 MIDPNLLRSN LDLVAKKLAR RKFILNINKF RQQESLRKIL QKKTESLQTE RKAKAKIIGV 70 80 90 100 110 120 AKSRGENVEF LCQEAYVLGK KLTSLKLENK ELKNRIKQFE LSLPNIPDDQ VPYGFRDQDN 130 140 150 160 170 180 LEIMRWGKPG QYNFPIRDHV ALGALTNGLD FSNATKLTGS RFIVMKGQIA HLHRALSQFM 190 200 210 220 230 240 IDLHVKRHGY EEYYLPYLVN QDSLYGAGQL PKFYEDLFHI QHLQSGTNPY ALIPTAEVPL 250 260 270 280 290 300 INLVRDVILD EEELPIKMVA HTPCFRYEAG SYGHHTRGLI RMHQFDKVEM VQVVHPDKSM 310 320 330 340 350 360 QILEEITSHA EQVLQLLKLP YRKILLCTGN IGFSSCKTYD LEVWLPAYNA YCEVSSCSNV 370 380 390 400 410 420 GDFQARRIRA RYKGRMNRKA RLLHTLNASG VAIGRALAAV LENYQLEDGR VAIPSVLSPY MSDITHIN

References

[1]	"Genome sequence of Blochmannia pennsylvanicus indicates parallel evolutionary trends among bacterial mutualists of insects." Degnan P.H., Lazarus A.B., Wernegreen J.J. Genome Res. 15:1023-1033(2005) [PubMed: 16077009] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].

Cross-references

Sequence databases
EMBLGenBankDDBJ	CP000016 Genomic DNA. Translation: AAZ41019.1.
RefSeq	YP_277894.1.
3D structure databases
ModBase	Search...
Genome annotation databases
GeneID	3562760.
GenomeReviews	Gene locus BPEN_395 in contig CP000016_GR.
KEGG	bpn:BPEN_395.
Organism-specific databases
CMR	Search...
Phylogenomic databases
HOGENOM	Q492S4.
OMA	Q492S4. LKPYMGG.
Enzyme and pathway databases
BioCyc	CBLO291272:BPEN_395-MON.
Family and domain databases
HAMAP	MF_00176. [Tree]
InterPro	IPR002314. aa-tRNA-synt_IIb_cons-reg. IPR006195. aa-tRNA-synth_II_cons-reg. IPR002317. Ser-tRNA-synth_IIa. IPR018156. Ser-tRNA-synth_IIa_C. IPR015866. Ser-tRNA-synth_IIa_N. [Graphical view]
Gene3D	G3DSA:1.10.287.40. Ser-tRNA-synth_IIa_N. 1 hit.
PANTHER	PTHR11778. tRNA-synt_ser. 1 hit.
Pfam	PF02403. Seryl_tRNA_N. 1 hit. PF00587. tRNA-synt_2b. 1 hit. [Graphical view]
PIRSF	PIRSF001529. Ser-tRNA-synth_IIa. 1 hit.
PRINTS	PR00981. TRNASYNTHSER.
TIGRFAMs	TIGR00414. serS. 1 hit.
PROSITE	PS50862. AA_TRNA_LIGASE_II. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

SYS_BLOPB

Accession

Primary (citable) accession number: Q492S4

Entry history

Integrated into UniProtKB/Swiss-Prot:	January 15, 2008
Last sequence update:	September 13, 2005
Last modified:	June 16, 2009
This is version 35 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)