Protein detail
SPIT1
Kunitz-type protease inhibitor 1 (Hepatocyte growth factor activator inhibitor type 1) (HAI-1)
Entry name SPIT1 | UniProt ID | EVMP confidence score 0.47 |
Supporting publications (n) 11 | Transmembrane count | Protein classification Cancer-related genesEssential proteinsPlasma proteinsPredicted intracellular proteinsPredicted membrane proteinsPredicted secreted proteinsTransporters |
Annotation confidence score; open for threshold definitions.
Extremely high >= 0.70High >= 0.60Medium >= 0.40Low >= 0.30Basic Information
Protein Names
Kunitz-type protease inhibitor 1 (Hepatocyte growth factor activator inhibitor type 1) (HAI-1)
Protein Class (7)
Cancer-related genesEssential proteinsPlasma proteinsPredicted intracellular proteinsPredicted membrane proteinsPredicted secreted proteinsTransporters
Protein Function (4)
- Predicted intracellular proteins
- Cancer-related genes:Candidate cancer biomarkers
- Predicted secreted proteins
- Transporters:Accessory Factors Involved in Transport
Ensembl
Entrez Gene Symbol
Gene Synonym (3)
HAIHAI-1MANSC2
Gene Description
Serine peptidase inhibitor, Kunitz type 1
Chromosome
15
Position
40844018-40858207
Supporting publications (n)
11
EVMP confidence score
0.47
Fluorescence & Localization
Tissue SpecificepididymisCell SpecificTuft cellsSingle-Nuclei Brain Specificendothelial cellBlood Cell SpecificneutrophilBlood Lineage Specificgranulocytes
Function & Pathway
Protein Function (4)
- Predicted intracellular proteins
- Cancer-related genes:Candidate cancer biomarkers
- Predicted secreted proteins
- Transporters:Accessory Factors Involved in Transport
Cellular Component (6)
Molecular Function (2)
Biological Process (3)
Reactome (4)
Mediation Categories
Receptor-signaling mediation
Relations & Evidence30
Ligand-Receptor Signaling (26)
26 records.
| Category | Parent | Database | Transmitter | Receiver | Secreted | Plasma Membrane (Transmembrane) | Plasma Membrane (Peripheral) |
|---|---|---|---|---|---|---|---|
| secreted | secreted | OmniPath | Yes | Yes | |||
| cell_surface | cell_surface | OmniPath | Yes | Yes | |||
| transmembrane | transmembrane_predicted | Phobius | Yes | Yes | |||
| transmembrane_phobius | transmembrane_predicted | Almen2009 | Yes | Yes | |||
| transmembrane_sosui | transmembrane_predicted | Almen2009 | Yes | Yes | |||
| transmembrane_tmhmm | transmembrane_predicted | Almen2009 | Yes | Yes |
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Protein Complex Composition (3)
Isolation & Detection Technology (1)
1 record.
| EV Isolation Method | Detection Method | Number of References | References |
|---|---|---|---|
| Differential Ultracentrifugation | Mass spectrometryR Sequencing | 1 | 40326690 |
Sequence, Structure & Domains
Sequences
Length
529
Mass
58,398
Sequence
MAPARTMARARLAPAGIPAVALWLLCTLGLQGTQAGPPPAPPGLPAGADCLNSFTAGVPGFVLDTNASVSNGATFLESPTVRRGWDCVRACCTTQNCNLALVELQPDRGEDAIAACFLINCLYEQNFVCKFAPREGFINYLTREVYRSYRQLRTQGFGGSGIPKAWAGIDLKVQPQEPLVLKDVENTDWRLLRGDTDVRVERKDPNQVELWGLKEGTYLFQLTVTSSDHPEDTANVTVTVLSTKQTEDYCLASNKVGRCRGSFPRWYYDPTEQICKSFVYGGCLGNKNNYLREEECILACRGVQGGPLRGSSGAQATFPQGPSMERRHPVCSGTCQPTQFRCSNGCCIDSFLECDDTPNCPDASDEAACEKYTSGFDELQRIHFPSDKGHCVDLPDTGLCKESIPRWYYNPFSEHCARFTYGGCYGNKNNFEEEQQCLESCRGISKKDVFGLRREIPIPSTGSVEMAVAVFLVICIVVVVAILGYCFFKNQRKDFHGHHHHPPPTPASSTVSTTEDTEHLVYNHTTRPL
Alternative Products
Event=Alternative splicing; Named isoforms=2; Name=1; Synonyms=HAI-1B; IsoId=O43278-1; Sequence=Displayed; Name=2; Synonyms=HAI-1A; IsoId=O43278-2; Sequence=VSP_013019
Alternative Sequence
306..321; Missing (in isoform 2)
3D Structural Models
Turn
70..72; 143..145; 150..152; 270..272
Helix
50..53; 66..69; 84..93; 146..149; 246..250; 293..300
Beta Strand
54..56; 61..63; 75..77; 99..104; 106..108; 113..119; 131..133; 135..142; 169..173; 177..180; 190..196; 199..201; 209..212; 215..222; 234..240; 263..268; 273..280; 282..284; 290..292
3D Structure
NMR spectroscopy (1); X-ray crystallography (6)
Domain & Motif Annotations
Domain (CC)
This inhibitor contains two inhibitory domains.
Domain (FT)
57..140; MANSC; 250..300; BPTI/Kunitz inhibitor 1; 334..370; LDL-receptor class A; 391..441; BPTI/Kunitz inhibitor 2
Supporting Publications11
| PMID | Title | Related sentences |
|---|---|---|
| 27894104 | Proteomic profiling of NCI-60 extracellular vesicles uncovers common protein cargo and cancer type-specific biomarkers. | No related sentences available |
| 28986585 | Quantitation of putative colorectal cancer biomarker candidates in serum extracellular vesicles by targeted proteomics. | No related sentences available |
| 29045505 | Surfaceome profiling enables isolation of cancer-specific exosomal cargo in liquid biopsies from pancreatic cancer patients. | Proteomic analysis of the exosome 'surfaceome' revealed multiple PDAC-specific biomarker candidates: CLDN4, EPCAM, CD151, LGALS3BP, HIST2H2BE, and HIST2H2BF. Droplet digital PCR was used on 74 patients (136 total exosome samples) to determine baseline KRAS mutation call rates while patients were on therapy. KRAS mutations in total exosomes were detected in 44.1% of patients undergoing active therapy compared with 73.0% following exosome capture using the selected biomarkers. |
| 30646616 | Preferential Localization of MUC1 Glycoprotein in Exosomes Secreted by Non-Small Cell Lung Carcinoma Cells. | THBS1, ANXA6, HIST1H4A, COL18A1, MDK, SRGN, ENO1, TUBA4A, SLC3A2, GPI, MIF, MUC1, TALDO1, SLC7A5, ICAM1, HSP90AA1, G6PD, and LRP1 were found to be expressed in exosomes at more than 5-fold higher level as compared to total cellular membrane proteins. |
| 30950185 | Unique Protein Profiles of Extracellular Vesicles as Diagnostic Biomarkers for Early and Advanced Non-Small Cell Lung Cancer. | No related sentences available |
| 32284825 | Unravelling the proteomic landscape of extracellular vesicles in prostate cancer by density-based fractionation of urine. | No related sentences available |
| 33709510 | Unbiased proteomic profiling of host cell extracellular vesicle composition and dynamics upon HIV-1 infection. | No related sentences available |
| 34817906 | Proteomic dissection of large extracellular vesicle surfaceome unravels interactive surface platform. | No related sentences available |
| 37786918 | Rapid and in-depth proteomic profiling of small extracellular vesicles for ultralow samples. | No related sentences available |
| 38321535 | Identification of specific markers for human pluripotent stem cell-derived small extracellular vesicles. | No related sentences available |
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