U.S. flag

An official website of the United States government

Format

Send to:

Choose Destination
    • Showing Current items.

    SLPI secretory leukocyte peptidase inhibitor [ Homo sapiens (human) ]

    Gene ID: 6590, updated on 27-Nov-2024

    Summary

    Go to the top of the page Help
    Official Symbol
    SLPIprovided by HGNC
    Official Full Name
    secretory leukocyte peptidase inhibitorprovided by HGNC
    Primary source
    HGNC:HGNC:11092
    See related
    Ensembl:ENSG00000124107 MIM:107285; AllianceGenome:HGNC:11092
    Gene type
    protein coding
    RefSeq status
    REVIEWED
    Organism
    Homo sapiens
    Lineage
    Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
    Also known as
    ALP; MPI; ALK1; BLPI; HUSI; WAP4; WFDC4; HUSI-I
    Summary
    This gene encodes a secreted inhibitor which protects epithelial tissues from serine proteases. It is found in various secretions including seminal plasma, cervical mucus, and bronchial secretions, and has affinity for trypsin, leukocyte elastase, and cathepsin G. Its inhibitory effect contributes to the immune response by protecting epithelial surfaces from attack by endogenous proteolytic enzymes. This antimicrobial protein has antibacterial, antifungal and antiviral activity. [provided by RefSeq, Nov 2014]
    Expression
    Biased expression in salivary gland (RPKM 1077.5), lung (RPKM 390.4) and 4 other tissues See more
    Orthologs
    mouse all
    NEW
    Try the new Gene table
    Try the new Transcript table

    Genomic context

    Go to the top of the page Help
    See SLPI in Genome Data Viewer
    Location:
    20q13.12
    Exon count:
    4
    Annotation release Status Assembly Chr Location
    RS_2024_08 current GRCh38.p14 (GCF_000001405.40) 20 NC_000020.11 (45252239..45254564, complement)
    RS_2024_08 current T2T-CHM13v2.0 (GCF_009914755.1) 20 NC_060944.1 (46988133..46990454, complement)
    RS_2024_09 previous assembly GRCh37.p13 (GCF_000001405.25) 20 NC_000020.10 (43880880..43883205, complement)

    Chromosome 20 - NC_000020.11Genomic Context describing neighboring genes Neighboring gene uncharacterized LOC105372630 Neighboring gene semenogelin 2 Neighboring gene uncharacterized LOC124904913 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 12955 Neighboring gene matrilin 4 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 12956 Neighboring gene recombination signal binding protein for immunoglobulin kappa J region like Neighboring gene ATAC-STARR-seq lymphoblastoid active region 17946 Neighboring gene tRNA-Val (anticodon CAC) 14-1

    Genomic regions, transcripts, and products

    Go to the top of the page Help

    Go to nucleotide: Graphics FASTA GenBank

    Expression

    Go to the top of the page Help
    • Project title: HPA RNA-seq normal tissues
    • Description: RNA-seq was performed of tissue samples from 95 human individuals representing 27 different tissues in order to determine tissue-specificity of all protein-coding genes
    • BioProject: PRJEB4337
    • Publication: PMID 24309898
    • Analysis date: Wed Apr 4 07:08:55 2018

    Bibliography

    Go to the top of the pageHelp

    Related articles in PubMed

    1. The alarm secretory leukocyte protease inhibitor increases with progressive metabolic dysfunction. López-Bermejo A, et al. Clin Chim Acta, 2011 May 12. PMID 21377455
    2. Modulation of granulocyte-endothelium interactions by antileukoproteinase: inhibition of anti-type II collagen antibody-induced leukocyte attachment to the synovial endothelium. Sehnert B, et al. Arthritis Res Ther, 2006. PMID 16776851, Free PMC Article
    3. The role of secretory leucoprotease inhibitor in the resolution of inflammatory responses. Weldon S, et al. Biochem Soc Trans, 2007 Apr. PMID 17371258
    4. Innate host defense functions of secretory leucoprotease inhibitor. Weldon S, et al. Exp Lung Res, 2007 Dec. PMID 18075823
    5. Expression of secretory leukocyte proteinase inhibitor in the submandibular glands of AIDS patients. Rocha LA, et al. Oral Dis, 2008 Jan. PMID 18173453

    See all (169) citations in PubMed

    GeneRIFs: Gene References Into Functions

    What's a GeneRIF?
    1. SLPI overexpression in hMSCs could be implicated in the HSC gene expression profile in AML.
      Title: SLPI overexpression in hMSCs could be implicated in the HSC gene expression profile in AML.
    2. [The role and mechanism of multifunctional molecule SLPI in regulating ischemia-reperfusion induced acute kidney injury and repair].
      Title: [The role and mechanism of multifunctional molecule SLPI in regulating ischemia-reperfusion induced acute kidney injury and repair].
    3. Secretory leukocyte protease inhibitor (SLPI) in cancer pathophysiology: Mechanisms of action and clinical implications.
      Title: Secretory leukocyte protease inhibitor (SLPI) in cancer pathophysiology: Mechanisms of action and clinical implications.
    4. Levels of mRNA and immunostaining of the antiproteases elafin and SLPI were enhanced strongly in inflamed versus noninflamed UC. Elafin and SLPI may be added to the list of defensin-like peptides with diminished induction in CD versus UC.
      Title: Attenuated induction of epithelial and leukocyte serine antiproteases elafin and secretory leukocyte protease inhibitor in Crohn's disease.
    5. SLPI regulation and activity is altered in the nasal mucosa of smokers.
      Title: Regulation and activity of secretory leukoprotease inhibitor (SLPI) is altered in smokers.
    6. High Expression of secretory leukocyte protease inhibitor is associated with metastasis in colorectal cancer.
      Title: Expression of secretory leukocyte protease inhibitor detected by immunohistochemistry correlating with prognosis and metastasis in colorectal cancer.
    7. High expression of secretory leukocyte protease inhibitor (SLPI) in stage III micro-satellite stable colorectal cancer is associated with reduced disease recurrence.
      Title: High expression of secretory leukocyte protease inhibitor (SLPI) in stage III micro-satellite stable colorectal cancer is associated with reduced disease recurrence.
    8. Levels of secretory leukocyte protease inhibitor expression in acute wounds.
      Title: Levels of secretory leukocyte protease inhibitor expression in acute wounds.
    9. Modulation of HIV Replication in Monocyte-Derived Macrophages (MDM) by Host Antiviral Factors Secretory Leukocyte Protease Inhibitor and Serpin Family C Member 1 Induced by Steroid Hormones.
      Title: Modulation of HIV Replication in Monocyte-Derived Macrophages (MDM) by Host Antiviral Factors Secretory Leukocyte Protease Inhibitor and Serpin Family C Member 1 Induced by Steroid Hormones.
    10. The interaction of smoking habit, SLPI and AnxA2 in HPV associated head and neck and other cancers.
      Title: The interaction of smoking habit, SLPI and AnxA2 in HPV associated head and neck and other cancers.
    Submit: New GeneRIF Correction See all GeneRIFs (112)

    Phenotypes

    Go to the top of the page Help

    Find tests for this gene in the NIH Genetic Testing Registry (GTR)

    Review eQTL and phenotype association data in this region using PheGenI

    Variation

    Go to the top of the page Help

    See variants in ClinVar

    See studies and variants in dbVar

    See Variation Viewer (GRCh37.p13)

    See Variation Viewer (GRCh38)

    HIV-1 interactions

    Go to the top of the page Help

    Protein interactions

    Protein Gene Interaction Pubs
    Envelope surface glycoprotein gp120 env The expression and production of secretory leukocyte protease inhibitor (SLPI), a 12-kDa mucosal antiviral protein, can be stimulated in oral epithelial cells through interactions with HIV-1 gp120 PubMed
    retropepsin gag-pol Secretory levels of secretory leukocyte peptidase inhibitor (SLPI) from HIV-1 infected patients is enhanced in saliva PubMed
    gag-pol Human secretory leukocyte protease inhibitor (hSLPI) inhibits HIV-1 infection of lymphocyte- and monocyte-derived tumor cell lines and peripheral blood lymphocytes PubMed

    Go to the HIV-1, Human Interaction Database

    Interactions

    Go to the top of the page Help
    Products Interactant Other Gene Complex Source Pubs Description

    General gene information

    Go to the top of the page Help

    Markers

    Homology

    Gene Ontology Provided by GOA

    Function Evidence Code Pubs
    enables DNA binding IDA
    Inferred from Direct Assay
    more info
    		 PubMed 
    enables endopeptidase inhibitor activity IDA
    Inferred from Direct Assay
    more info
    		 PubMed 
    enables enzyme binding IPI
    Inferred from Physical Interaction
    more info
    		 PubMed 
    enables mRNA binding IDA
    Inferred from Direct Assay
    more info
    		 PubMed 
    enables protein binding IPI
    Inferred from Physical Interaction
    more info
    		 PubMed 
    enables serine-type endopeptidase inhibitor activity IBA
    Inferred from Biological aspect of Ancestor
    more info
    		  
    enables serine-type endopeptidase inhibitor activity IDA
    Inferred from Direct Assay
    more info
    		 PubMed 
    Process Evidence Code Pubs
    involved_in antibacterial humoral response IBA
    Inferred from Biological aspect of Ancestor
    more info
    		  
    involved_in antibacterial humoral response IDA
    Inferred from Direct Assay
    more info
    		 PubMed 
    involved_in antibacterial humoral response ISS
    Inferred from Sequence or Structural Similarity
    more info
    		  
    involved_in immune response ISS
    Inferred from Sequence or Structural Similarity
    more info
    		  
    involved_in innate immune response IBA
    Inferred from Biological aspect of Ancestor
    more info
    		  
    involved_in innate immune response ISS
    Inferred from Sequence or Structural Similarity
    more info
    		  
    involved_in modulation of process of another organism IDA
    Inferred from Direct Assay
    more info
    		 PubMed 
    involved_in negative regulation of protein binding IDA
    Inferred from Direct Assay
    more info
    		 PubMed 
    involved_in negative regulation of viral genome replication IDA
    Inferred from Direct Assay
    more info
    		 PubMed 
    involved_in response to lipopolysaccharide ISS
    Inferred from Sequence or Structural Similarity
    more info
    		  
    Component Evidence Code Pubs
    located_in Golgi apparatus IDA
    Inferred from Direct Assay
    more info
    		  
    colocalizes_with collagen-containing extracellular matrix HDA PubMed 
    located_in collagen-containing extracellular matrix HDA PubMed 
    located_in extracellular exosome HDA PubMed 
    located_in extracellular region TAS
    Traceable Author Statement
    more info
    		  
    is_active_in extracellular space IBA
    Inferred from Biological aspect of Ancestor
    more info
    		  
    located_in extracellular space IDA
    Inferred from Direct Assay
    more info
    		 PubMed 
    located_in specific granule lumen TAS
    Traceable Author Statement
    more info
    		  

    General protein information

    Go to the top of the page Help
    Preferred Names
    antileukoproteinase
    Names
    HUSI-1
    WAP four-disulfide core domain protein 4
    mucus proteinase inhibitor
    protease inhibitor WAP4
    secretory leukocyte protease inhibitor (antileukoproteinase)
    seminal proteinase inhibitor

    NCBI Reference Sequences (RefSeq)

    Go to the top of the page Help

    NEW Try the new Transcript table

    RefSeqs maintained independently of Annotated Genomes

    These reference sequences exist independently of genome builds. Explain

    These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.

    Genomic

    1. NG_028137.1 RefSeqGene

      Range
      5002..7327
      Download
      GenBank, FASTA, Sequence Viewer (Graphics)

    mRNA and Protein(s)

    1. NM_003064.4 → NP_003055.1  antileukoproteinase precursor

      See identical proteins and their annotated locations for NP_003055.1

      Status: REVIEWED

      Source sequence(s)
      BC020708
      Consensus CDS
      CCDS13347.1
      UniProtKB/Swiss-Prot
      B2R5H8, P03973, P07757
      Related
      ENSP00000342082.2, ENST00000338380.2
      Conserved Domains (2) summary
      smart00217
      Location:85 → 130
      WAP; Four-disulfide core domains
      pfam00095
      Location:31 → 73
      WAP; WAP-type (Whey Acidic Protein) 'four-disulfide core'

    RefSeqs of Annotated Genomes: GCF_000001405.40-RS_2024_08

    The following sections contain reference sequences that belong to a specific genome build. Explain

    Reference GRCh38.p14 Primary Assembly

    Genomic

    1. NC_000020.11 Reference GRCh38.p14 Primary Assembly

      Range
      45252239..45254564 complement
      Download
      GenBank, FASTA, Sequence Viewer (Graphics)

    Alternate T2T-CHM13v2.0

    Genomic

    1. NC_060944.1 Alternate T2T-CHM13v2.0

      Range
      46988133..46990454 complement
      Download
      GenBank, FASTA, Sequence Viewer (Graphics)
    Nucleotide Protein
    Heading Accession and Version
    Protein Accession Links
    GenPept Link UniProtKB Link
    P03973.2 GenPept UniProtKB/Swiss-Prot:P03973

    Gene LinkOut

    The following LinkOut resources are supplied by external providers. These providers are responsible for maintaining the links.

    Chemical Information
    Molecular Biology Databases
    Research Materials
    Tools
    Miscellaneous