UniProtKB - P9WK41 (LPRI_MYCTU)
Protein
Lipoprotein LprI
Gene
lprI
Organism
Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)
Status
Functioni
Strongly binds and inhibits lysozyme, may help bacteria survive in lysozyme-producing host cells. When overexpressed in M.tuberculosis or M.smegmatis increases resistance to hen egg white lysozyme. M.smegmatis overexpressing LprI survive better during intracellular infection of peritoneal and monocyte-derived macrophages, both of which produce lysozyme during infection; M.smegmatis does not encode this protein. Somewhat better survival is seen in human cell lines when M.smegmatis cells express both proteins from this operon, i.e. GlbN (HbN) and LprI.1 Publication
Enzyme and pathway databases
BioCyci | MTBH37RV:G185E-5729-MONOMER |
Names & Taxonomyi
Protein namesi | Recommended name: Lipoprotein LprI1 PublicationAlternative name(s): Glycolipoprotein LprICurated Lysozyme inhibitor LprI1 Publication |
Gene namesi | Name:lprI Ordered Locus Names:Rv1541c ORF Names:MTCY48.24 |
Organismi | Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv) |
Taxonomic identifieri | 83332 [NCBI] |
Taxonomic lineagei | Bacteria › Actinobacteria › Corynebacteriales › Mycobacteriaceae › Mycobacterium › Mycobacterium tuberculosis complex › |
Proteomesi |
|
Organism-specific databases
TubercuListi | Rv1541c |
Subcellular locationi
- Cell membrane PROSITE-ProRule annotation1 Publication; Lipid-anchor PROSITE-ProRule annotation1 Publication
- cell wall 1 Publication
- Cell surface 1 Publication Note: Protein is accessible to externally added trypsin and alpha-D-mannosidase.1 Publication
GO - Cellular componenti
- cell surface Source: UniProtKB-SubCell
- cell wall Source: UniProtKB-SubCell
- extracellular region Source: MTBBASE
- plasma membrane Source: UniProtKB-SubCell
Keywords - Cellular componenti
Cell membrane, Cell wall, Membrane, SecretedPathology & Biotechi
Disruption phenotypei
Probably essential, it cannot be deleted.1 Publication
Mutagenesis
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Mutagenesisi | 24 | T → A: Decreased apparent weight in M.smegmatis, a portion of the protein is protected from extracellular trypsin. 1 Publication | 1 | |
Mutagenesisi | 28 | T → A: Decreased apparent weight in M.smegmatis, a portion of the protein is protected from extracellular trypsin. 1 Publication | 1 | |
Mutagenesisi | 117 | T → A: Decreased apparent weight in M.smegmatis, a portion of the protein is protected from extracellular trypsin. 1 Publication | 1 |
PTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Signal peptidei | 1 – 15 | PROSITE-ProRule annotationAdd BLAST | 15 | |
ChainiPRO_0000018150 | 16 – 197 | Lipoprotein LprIAdd BLAST | 182 |
Amino acid modifications
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Lipidationi | 16 | N-palmitoyl cysteinePROSITE-ProRule annotation | 1 | |
Lipidationi | 16 | S-diacylglycerol cysteinePROSITE-ProRule annotation | 1 |
Post-translational modificationi
Glycosylated; alpha-D-mannosidase treatment decreases its apparent molecular weight. Glycosylation probably helps target protein to the cell surface; mutation of predicted glycosylation sites (Thr-24, Thr-28 and/or Thr-117) makes protein partially inaccesible to externally added trypsin. May also be glycosylated on other residues. Glycosylation is probably not necessary for inhibition of lysozyme.1 Publication
Keywords - PTMi
Glycoprotein, Lipoprotein, PalmitateProteomic databases
PaxDbi | P9WK41 |
Expressioni
Inductioni
Constitutively expressed, increases in stationary phase (at protein level). mRNA levels rise nearly 50-fold during mouse macrophage infection. Part of the glbN-lprI operon.1 Publication
Interactioni
Subunit structurei
Homodimer.
1 PublicationProtein-protein interaction databases
STRINGi | 83332.Rv1541c |
Family & Domainsi
Sequence similaritiesi
In the C-terminal section; belongs to the MliC family.Curated
Keywords - Domaini
SignalPhylogenomic databases
eggNOGi | ENOG41063PT Bacteria COG4461 LUCA |
OMAi | NECWKSE |
PhylomeDBi | P9WK41 |
Family and domain databases
Gene3Di | 2.40.128.200, 1 hit |
InterProi | View protein in InterPro IPR009739 LprI_N IPR018660 MliC IPR036328 MliC_sf |
Pfami | View protein in Pfam PF07007 LprI, 1 hit PF09864 MliC, 1 hit |
SUPFAMi | SSF141488 SSF141488, 1 hit |
PROSITEi | View protein in PROSITE PS51257 PROKAR_LIPOPROTEIN, 1 hit |
i Sequence
Sequence statusi: Complete.
: The displayed sequence is further processed into a mature form. Sequence processingi
P9WK41-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MRWIGVLVTA LVLSACAANP PANTTSPTAG QSLDCTKPAT IVQQLVCHDR
60 70 80 90 100
QLTSLDHRLS TAYQQALAHR RSAALEAAQS SWTMLRDACA QDTDPRTCVQ
110 120 130 140 150
EAYQTRLVQL AIADPATATP PVLTYRCPTQ DGPLTAQFYN QFDPKTAVLN
160 170 180 190
WKGDQVIVFV ELSGSGARYG RQGIEYWEHQ GEVRLDFHGA TFVCRTS
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AL123456 Genomic DNA Translation: CCP44305.1 |
PIRi | B70761 |
RefSeqi | NP_216057.1, NC_000962.3 WP_003407725.1, NZ_NVQJ01000004.1 |
Genome annotation databases
EnsemblBacteriai | CCP44305; CCP44305; Rv1541c |
GeneIDi | 886406 |
KEGGi | mtu:Rv1541c mtv:RVBD_1541c |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AL123456 Genomic DNA Translation: CCP44305.1 |
PIRi | B70761 |
RefSeqi | NP_216057.1, NC_000962.3 WP_003407725.1, NZ_NVQJ01000004.1 |
3D structure databases
ModBasei | Search... |
SWISS-MODEL-Workspacei | Submit a new modelling project... |
Protein-protein interaction databases
STRINGi | 83332.Rv1541c |
Proteomic databases
PaxDbi | P9WK41 |
Genome annotation databases
EnsemblBacteriai | CCP44305; CCP44305; Rv1541c |
GeneIDi | 886406 |
KEGGi | mtu:Rv1541c mtv:RVBD_1541c |
Organism-specific databases
TubercuListi | Rv1541c |
Phylogenomic databases
eggNOGi | ENOG41063PT Bacteria COG4461 LUCA |
OMAi | NECWKSE |
PhylomeDBi | P9WK41 |
Enzyme and pathway databases
BioCyci | MTBH37RV:G185E-5729-MONOMER |
Family and domain databases
Gene3Di | 2.40.128.200, 1 hit |
InterProi | View protein in InterPro IPR009739 LprI_N IPR018660 MliC IPR036328 MliC_sf |
Pfami | View protein in Pfam PF07007 LprI, 1 hit PF09864 MliC, 1 hit |
SUPFAMi | SSF141488 SSF141488, 1 hit |
PROSITEi | View protein in PROSITE PS51257 PROKAR_LIPOPROTEIN, 1 hit |
ProtoNeti | Search... |
MobiDBi | Search... |
Entry informationi
Entry namei | LPRI_MYCTU | |
Accessioni | P9WK41Primary (citable) accession number: P9WK41 Secondary accession number(s): L0T8K2, P65318, Q10785 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | April 16, 2014 |
Last sequence update: | April 16, 2014 | |
Last modified: | September 18, 2019 | |
This is version 30 of the entry and version 1 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Prokaryotic Protein Annotation Program |
Miscellaneousi
Keywords - Technical termi
Complete proteome, Reference proteomeDocuments
- SIMILARITY comments
Index of protein domains and families - Mycobacterium tuberculosis strains ATCC 25618 / H37Rv and CDC 1551 / Oshkosh
Mycobacterium tuberculosis strains ATCC 25618 / H37Rv and CDC 1551 / Oshkosh: entries and gene names