DEFB118 defensin beta 118 [Homo sapiens (human)] - Gene

Summary

Official Symbol: DEFB118provided by HGNC
Official Full Name: defensin beta 118provided by HGNC
Primary source: HGNC:HGNC:16196
See related: Ensembl:ENSG00000131068 MIM:607650; AllianceGenome:HGNC:16196
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: ESC42; DEFB-18; ESP13.6; C20orf63
Summary: This gene encodes a member of the beta subfamily of defensins. Beta-defensins are antimicrobial peptides that protect tissues and organs from infection by a variety of microorganisms. Expression of this gene is regulated by androgen, and the encoded protein binds to sperm and exhibits antibacterial activity against E. coli. This gene is found in a cluster with other beta-defensin genes on the long arm of chromosome 20. [provided by RefSeq, Nov 2014]
Orthologs: all
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Genomic context

Location:: 20q11.21

Exon count:: 2

Annotation release	Status	Assembly	Chr	Location
RS_2024_08	current	GRCh38.p14 (GCF_000001405.40)	20	NC_000020.11 (31368601..31373923)
RS_2024_08	current	T2T-CHM13v2.0 (GCF_009914755.1)	20	NC_060944.1 (33092784..33098107)
RS_2024_09	previous assembly	GRCh37.p13 (GCF_000001405.25)	20	NC_000020.10 (29956404..29961726)

Chromosome 20 - NC_000020.11 Genomic Context describing neighboring genes

Genomic regions, transcripts, and products

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Genomic Sequence:

Go to nucleotide: Graphics FASTA GenBank

Bibliography

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GeneRIFs: Gene References Into Functions

What's a GeneRIF?

The truncated human beta-defensin 118 can modulate lipopolysaccharide mediated inflammatory response in RAW264.7 macrophages.
Title: The truncated human beta-defensin 118 can modulate lipopolysaccharide mediated inflammatory response in RAW264.7 macrophages.
DEFB118 may contribute to epididymal innate immunity and provide antimicrobial activity against microorganisms attacking sperm in the male and female reproductive tracts.
Title: The androgen-regulated epididymal sperm-binding protein, human beta-defensin 118 (DEFB118) (formerly ESC42), is an antimicrobial beta-defensin.
Observational study of gene-disease association and gene-gene interaction. (HuGE Navigator)
Title: Polymorphisms in innate immunity genes and risk of childhood leukemia.
Observational study of gene-disease association. (HuGE Navigator)
Title: Risk of meningioma and common variation in genes related to innate immunity.

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Phenotypes

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

Review eQTL and phenotype association data in this region using PheGenI

Variation

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See variants in ClinVar

See studies and variants in dbVar

See Variation Viewer (GRCh37.p13)

See Variation Viewer (GRCh38)

Interactions

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Products	Interactant	Other Gene	Complex	Source	Pubs	Description

General gene information

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Gene Ontology Provided by GOA

Function	Evidence Code	Pubs
enables lipopolysaccharide binding	IDA Inferred from Direct Assay more info	PubMed
enables membrane destabilizing activity	IDA Inferred from Direct Assay more info	PubMed
enables protein binding	IPI Inferred from Physical Interaction more info	PubMed

Process	Evidence Code	Pubs
involved_in antimicrobial humoral immune response mediated by antimicrobial peptide	IDA Inferred from Direct Assay more info	PubMed
involved_in cell-matrix adhesion	NAS Non-traceable Author Statement more info	PubMed
involved_in defense response to Gram-negative bacterium	IDA Inferred from Direct Assay more info	PubMed
involved_in defense response to Gram-positive bacterium	IDA Inferred from Direct Assay more info	PubMed
involved_in defense response to bacterium	TAS Traceable Author Statement more info	PubMed
involved_in innate immune response	IDA Inferred from Direct Assay more info	PubMed
involved_in innate immune response	TAS Traceable Author Statement more info	PubMed
involved_in killing of cells of another organism	IDA Inferred from Direct Assay more info	PubMed
involved_in negative regulation of cell adhesion	IDA Inferred from Direct Assay more info	PubMed
involved_in negative regulation of lipopolysaccharide-mediated signaling pathway	IDA Inferred from Direct Assay more info	PubMed
involved_in spermatogenesis	NAS Non-traceable Author Statement more info	PubMed

Component	Evidence Code	Pubs
located_in extracellular region	IEA Inferred from Electronic Annotation more info

General protein information

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Preferred Names: defensin beta 118

Names: defensin, beta 18; epididymal secretory protein 13.6; epididymis secretory sperm binding protein; epididymus specific clone 42

NCBI Reference Sequences (RefSeq)

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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.