UniProtKB - Q9VFC2 (SP88E_DROME)
Serine protease inhibitor 88Ea
Spn88Ea
Functioni
Serine protease inhibitor with activity toward trypsin (PubMed:18956323).
Negatively regulates the Toll signaling pathway and suppresses the expression of the antifungal peptide drosomycin (PubMed:19581577).
Its negative regulation of the Toll signaling pathway also results in the inhibition of the melanization immune response via the phenoloxidase (PPO1) cascade (PubMed:19581577).
Essential for unfolding and expansion of the wings after emergence from the pupal case (PubMed:18956323).
May regulate the Toll pathway by blocking the proteolysis of the Toll ligand spz (PubMed:19581577).
2 PublicationsSites
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Sitei | 386 – 387 | Reactive bondBy similarity | 2 |
GO - Molecular functioni
- serine-type endopeptidase inhibitor activity Source: UniProtKB-KW
GO - Biological processi
- imaginal disc-derived wing expansion Source: FlyBase
- immune system process Source: UniProtKB-KW
- melanin biosynthetic process Source: UniProtKB-KW
- negative regulation of innate immune response Source: FlyBase
- negative regulation of proteolysis Source: FlyBase
- negative regulation of Toll signaling pathway Source: FlyBase
Keywordsi
Molecular function | Protease inhibitor, Serine protease inhibitor |
Biological process | Immunity, Melanin biosynthesis |
Enzyme and pathway databases
Reactomei | R-DME-114608, Platelet degranulation R-DME-140837, Intrinsic Pathway of Fibrin Clot Formation R-DME-140875, Common Pathway of Fibrin Clot Formation R-DME-194002, Glucocorticoid biosynthesis R-DME-204005, COPII-mediated vesicle transport R-DME-3000178, ECM proteoglycans R-DME-381426, Regulation of Insulin-like Growth Factor (IGF) transport and uptake by Insulin-like Growth Factor Binding Proteins (IGFBPs) R-DME-5694530, Cargo concentration in the ER R-DME-6798695, Neutrophil degranulation R-DME-8957275, Post-translational protein phosphorylation |
Protein family/group databases
MEROPSi | I04.085 |
Names & Taxonomyi
Protein namesi | Recommended name: Serine protease inhibitor 88Ea1 PublicationShort name: Serpin 88EaImported |
Gene namesi | ORF Names:CG18525Imported |
Organismi | Drosophila melanogaster (Fruit fly)Imported |
Taxonomic identifieri | 7227 [NCBI] |
Taxonomic lineagei | Eukaryota › Metazoa › Ecdysozoa › Arthropoda › Hexapoda › Insecta › Pterygota › Neoptera › Endopterygota › Diptera › Brachycera › Muscomorpha › Ephydroidea › Drosophilidae › Drosophila › Sophophora › |
Proteomesi |
|
Organism-specific databases
FlyBasei | FBgn0028984, Spn88Ea |
VEuPathDBi | VectorBase:FBgn0028984 |
Subcellular locationi
Extracellular region or secreted
- Secreted 1 Publication
Extracellular region or secreted
- extracellular region Source: FlyBase
- extracellular space Source: GO_Central
Keywords - Cellular componenti
SecretedPathology & Biotechi
Disruption phenotypei
PTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Signal peptidei | 1 – 18 | Sequence analysisAdd BLAST | 18 | |
ChainiPRO_5007718228 | 19 – 427 | Serine protease inhibitor 88Ea1 PublicationAdd BLAST | 409 |
Amino acid modifications
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Glycosylationi | 224 | N-linked (GlcNAc...) asparaginePROSITE-ProRule annotation | 1 |
Keywords - PTMi
GlycoproteinProteomic databases
PaxDbi | Q9VFC2 |
PRIDEi | Q9VFC2 |
PTM databases
GlyGeni | Q9VFC2, 1 site |
Expressioni
Tissue specificityi
Developmental stagei
Gene expression databases
Bgeei | FBgn0028984, Expressed in oviduct (Drosophila) and 51 other tissues |
Interactioni
Protein-protein interaction databases
IntActi | Q9VFC2, 1 interactor |
STRINGi | 7227.FBpp0082595 |
Family & Domainsi
Sequence similaritiesi
Keywords - Domaini
SignalPhylogenomic databases
eggNOGi | KOG2392, Eukaryota |
GeneTreei | ENSGT00940000173118 |
HOGENOMi | CLU_023330_0_0_1 |
InParanoidi | Q9VFC2 |
OMAi | MYILLPP |
OrthoDBi | 1124079at2759 |
PhylomeDBi | Q9VFC2 |
Family and domain databases
Gene3Di | 2.30.39.10, 1 hit 3.30.497.10, 1 hit |
InterProi | View protein in InterPro IPR023795, Serpin_CS IPR023796, Serpin_dom IPR000215, Serpin_fam IPR036186, Serpin_sf IPR042178, Serpin_sf_1 IPR042185, Serpin_sf_2 |
PANTHERi | PTHR11461, PTHR11461, 1 hit |
Pfami | View protein in Pfam PF00079, Serpin, 1 hit |
SMARTi | View protein in SMART SM00093, SERPIN, 1 hit |
SUPFAMi | SSF56574, SSF56574, 1 hit |
PROSITEi | View protein in PROSITE PS00284, SERPIN, 1 hit |
i Sequence
Sequence statusi: Complete.
: The displayed sequence is further processed into a mature form. Sequence processingi
10 20 30 40 50
MHILSISLMA VLPAIALAGL CGVEPDAGLL DQRLNLYKGQ QNFAVSMLNV
60 70 80 90 100
IRQSTPNENV FFSPYSTYHA LLLAYFGSSG DTEKELAKVL HLDWADSKEV
110 120 130 140 150
VRSAYILEKM NRKERQSKMP LEFSSADRIF FANDLHVTEC ARNRLAEEVQ
160 170 180 190 200
QIDFKSQTEE SRKQINDWIA KQTHDQIRNM LSADEITPRT RLVLANAAYL
210 220 230 240 250
KGQWLSQFKT EKTVPMPFYT SPSNYSLVSM MQQKGTFLLN VDEQLRAHVL
260 270 280 290 300
QLPYRTVFES QEKEDSSPDE NSDISMVLIL PPFNSNSLED VLSRLNADSL
310 320 330 340 350
DDSLKQAMPR EIEVSLPKFE FEQRLELNPI LAKMGVSKMF DESVATFDDL
360 370 380 390 400
TSETISIGDS KHVAKIKVDE EGSTAAAATV LFTYRSARPV EPAKFECNHP
410 420
FLFVIYDRTS RSILFTGIYR DPKTIKQ
Experimental Info
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Sequence conflicti | 329 | P → L in CAB63100 (PubMed:10692585).Curated | 1 | |
Sequence conflicti | 364 | A → P in CAB63100 (PubMed:10692585).Curated | 1 |
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AJ251748 mRNA Translation: CAB63100.1 AE014297 Genomic DNA Translation: AAF55138.1 AE014297 Genomic DNA Translation: AAO41566.1 AY094712 mRNA Translation: AAM11065.1 |
RefSeqi | NP_524954.2, NM_080215.4 NP_788678.1, NM_176501.3 |
Genome annotation databases
EnsemblMetazoai | FBtr0083141; FBpp0082595; FBgn0028984 FBtr0083142; FBpp0082596; FBgn0028984 |
GeneIDi | 49804 |
KEGGi | dme:Dmel_CG18525 |
UCSCi | CG18525-RA, d. melanogaster |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AJ251748 mRNA Translation: CAB63100.1 AE014297 Genomic DNA Translation: AAF55138.1 AE014297 Genomic DNA Translation: AAO41566.1 AY094712 mRNA Translation: AAM11065.1 |
RefSeqi | NP_524954.2, NM_080215.4 NP_788678.1, NM_176501.3 |
3D structure databases
SMRi | Q9VFC2 |
ModBasei | Search... |
Protein-protein interaction databases
IntActi | Q9VFC2, 1 interactor |
STRINGi | 7227.FBpp0082595 |
Protein family/group databases
MEROPSi | I04.085 |
PTM databases
GlyGeni | Q9VFC2, 1 site |
Proteomic databases
PaxDbi | Q9VFC2 |
PRIDEi | Q9VFC2 |
Protocols and materials databases
DNASUi | 49804 |
Genome annotation databases
EnsemblMetazoai | FBtr0083141; FBpp0082595; FBgn0028984 FBtr0083142; FBpp0082596; FBgn0028984 |
GeneIDi | 49804 |
KEGGi | dme:Dmel_CG18525 |
UCSCi | CG18525-RA, d. melanogaster |
Organism-specific databases
CTDi | 49804 |
FlyBasei | FBgn0028984, Spn88Ea |
VEuPathDBi | VectorBase:FBgn0028984 |
Phylogenomic databases
eggNOGi | KOG2392, Eukaryota |
GeneTreei | ENSGT00940000173118 |
HOGENOMi | CLU_023330_0_0_1 |
InParanoidi | Q9VFC2 |
OMAi | MYILLPP |
OrthoDBi | 1124079at2759 |
PhylomeDBi | Q9VFC2 |
Enzyme and pathway databases
Reactomei | R-DME-114608, Platelet degranulation R-DME-140837, Intrinsic Pathway of Fibrin Clot Formation R-DME-140875, Common Pathway of Fibrin Clot Formation R-DME-194002, Glucocorticoid biosynthesis R-DME-204005, COPII-mediated vesicle transport R-DME-3000178, ECM proteoglycans R-DME-381426, Regulation of Insulin-like Growth Factor (IGF) transport and uptake by Insulin-like Growth Factor Binding Proteins (IGFBPs) R-DME-5694530, Cargo concentration in the ER R-DME-6798695, Neutrophil degranulation R-DME-8957275, Post-translational protein phosphorylation |
Miscellaneous databases
BioGRID-ORCSi | 49804, 0 hits in 3 CRISPR screens |
GenomeRNAii | 49804 |
PROi | PR:Q9VFC2 |
Gene expression databases
Bgeei | FBgn0028984, Expressed in oviduct (Drosophila) and 51 other tissues |
Family and domain databases
Gene3Di | 2.30.39.10, 1 hit 3.30.497.10, 1 hit |
InterProi | View protein in InterPro IPR023795, Serpin_CS IPR023796, Serpin_dom IPR000215, Serpin_fam IPR036186, Serpin_sf IPR042178, Serpin_sf_1 IPR042185, Serpin_sf_2 |
PANTHERi | PTHR11461, PTHR11461, 1 hit |
Pfami | View protein in Pfam PF00079, Serpin, 1 hit |
SMARTi | View protein in SMART SM00093, SERPIN, 1 hit |
SUPFAMi | SSF56574, SSF56574, 1 hit |
PROSITEi | View protein in PROSITE PS00284, SERPIN, 1 hit |
MobiDBi | Search... |
Entry informationi
Entry namei | SP88E_DROME | |
Accessioni | Q9VFC2Primary (citable) accession number: Q9VFC2 Secondary accession number(s): Q9U1I4 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | November 30, 2016 |
Last sequence update: | May 1, 2000 | |
Last modified: | February 23, 2022 | |
This is version 167 of the entry and version 1 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Drosophila annotation project |
Miscellaneousi
Keywords - Technical termi
Reference proteomeDocuments
- Drosophila
Drosophila: entries, gene names and cross-references to FlyBase - SIMILARITY comments
Index of protein domains and families