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Protein

Lipoprotein signal peptidase

Gene

lspA

Organism
Serratia marcescens
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Protein inferred from homologyi

Functioni

This protein specifically catalyzes the removal of signal peptides from prolipoproteins.By similarity

Catalytic activityi

Release of signal peptides from bacterial membrane prolipoproteins. Hydrolyzes -Xaa-Yaa-Zaa-|-(S,diacylglyceryl)Cys-, in which Xaa is hydrophobic (preferably Leu), and Yaa (Ala or Ser) and Zaa (Gly or Ala) have small, neutral side chains.

Pathwayi: lipoprotein biosynthesis (signal peptide cleavage)

This protein is involved in the pathway lipoprotein biosynthesis (signal peptide cleavage), which is part of Protein modification.
View all proteins of this organism that are known to be involved in the pathway lipoprotein biosynthesis (signal peptide cleavage) and in Protein modification.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Active sitei113By similarity1
Active sitei140By similarity1

GO - Molecular functioni

Keywordsi

Molecular functionAspartyl protease, Hydrolase, Protease

Enzyme and pathway databases

UniPathwayiUPA00665.

Protein family/group databases

MEROPSiA08.001.

Names & Taxonomyi

Protein namesi
Recommended name:
Lipoprotein signal peptidase (EC:3.4.23.36)
Alternative name(s):
Prolipoprotein signal peptidase
Signal peptidase II
Short name:
SPase II
Gene namesi
Name:lspA
Encoded oniPlasmid R471a0 Publication
OrganismiSerratia marcescens
Taxonomic identifieri615 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaEnterobacteralesYersiniaceaeSerratia

Subcellular locationi

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Transmembranei1 – 21HelicalSequence analysisAdd BLAST21
Transmembranei43 – 63HelicalSequence analysisAdd BLAST21
Transmembranei71 – 91HelicalSequence analysisAdd BLAST21
Transmembranei131 – 151HelicalSequence analysisAdd BLAST21

GO - Cellular componenti

Keywords - Cellular componenti

Cell inner membrane, Cell membrane, Membrane

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00001788111 – 170Lipoprotein signal peptidaseAdd BLAST170

Structurei

3D structure databases

ProteinModelPortaliO52213.
SMRiO52213.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the peptidase A8 family.Curated

Keywords - Domaini

Transmembrane, Transmembrane helix

Family and domain databases

HAMAPiMF_00161. LspA. 1 hit.
InterProiView protein in InterPro
IPR001872. Peptidase_A8.
PANTHERiPTHR33695:SF2. PTHR33695:SF2. 1 hit.
PfamiView protein in Pfam
PF01252. Peptidase_A8. 1 hit.
PRINTSiPR00781. LIPOSIGPTASE.
TIGRFAMsiTIGR00077. lspA. 1 hit.
PROSITEiView protein in PROSITE
PS00855. SPASE_II. 1 hit.

Sequencei

Sequence statusi: Complete.

O52213-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MLIIGKKLSP YALLSISGLL AASDQAVKWL VQQSMAYGEY VSVTPFFNWV
60 70 80 90 100
HLWNTGAAFS LFANGGGWQR YFFIGIAVVV SIFLIKLILE NRHKGEAIAY
110 120 130 140 150
SLILGGAMGN LIDRVFRGYV VDSFDFYWRD WHWPAFNLAD IAIVLGALLF
160 170
VSSSLLGKKA NTNAEPDGSD
Length:170
Mass (Da):18,815
Last modified:June 1, 1998 - v1
Checksum:iECE1C7415B3C10FB
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AF027768 Genomic DNA. Translation: AAC82524.1.
RefSeqiWP_004863699.1. NC_019344.1.
YP_006964559.1. NC_019344.1.

Genome annotation databases

GeneIDi13922778.
4010397.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AF027768 Genomic DNA. Translation: AAC82524.1.
RefSeqiWP_004863699.1. NC_019344.1.
YP_006964559.1. NC_019344.1.

3D structure databases

ProteinModelPortaliO52213.
SMRiO52213.
ModBaseiSearch...
MobiDBiSearch...

Protein family/group databases

MEROPSiA08.001.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

GeneIDi13922778.
4010397.

Enzyme and pathway databases

UniPathwayiUPA00665.

Family and domain databases

HAMAPiMF_00161. LspA. 1 hit.
InterProiView protein in InterPro
IPR001872. Peptidase_A8.
PANTHERiPTHR33695:SF2. PTHR33695:SF2. 1 hit.
PfamiView protein in Pfam
PF01252. Peptidase_A8. 1 hit.
PRINTSiPR00781. LIPOSIGPTASE.
TIGRFAMsiTIGR00077. lspA. 1 hit.
PROSITEiView protein in PROSITE
PS00855. SPASE_II. 1 hit.
ProtoNetiSearch...

Entry informationi

Entry nameiLSPA_SERMA
AccessioniPrimary (citable) accession number: O52213
Entry historyiIntegrated into UniProtKB/Swiss-Prot: May 30, 2000
Last sequence update: June 1, 1998
Last modified: March 15, 2017
This is version 86 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Plasmid

Documents

  1. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  2. Peptidase families
    Classification of peptidase families and list of entries
  3. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.