Spesp1 sperm equatorial segment protein 1 [Mus musculus (house mouse)] - Gene

Summary

Official Symbol: Spesp1provided by MGI
Official Full Name: sperm equatorial segment protein 1provided by MGI
Primary source: MGI:MGI:1913962
See related: Ensembl:ENSMUSG00000046846 AllianceGenome:MGI:1913962
Gene type: protein coding
RefSeq status: PROVISIONAL
Organism: Mus musculus
Lineage: Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Glires; Rodentia; Myomorpha; Muroidea; Muridae; Murinae; Mus; Mus
Also known as: 4921508E09Rik
Summary: Involved in sperm-egg recognition. Acts upstream of or within acrosome reaction and fusion of sperm to egg plasma membrane involved in single fertilization. Located in acrosomal vesicle. Orthologous to human SPESP1 (sperm equatorial segment protein 1). [provided by Alliance of Genome Resources, Nov 2024]
Expression: Restricted expression toward testis adult (RPKM 56.2) See more
Orthologs: human all
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Genomic context

Location:: 9 B; 9 33.65 cM

Exon count:: 2

Annotation release	Status	Assembly	Chr	Location
RS_2024_02	current	GRCm39 (GCF_000001635.27)	9	NC_000075.7 (62178011..62189461, complement)
108.20200622	previous assembly	GRCm38.p6 (GCF_000001635.26)	9	NC_000075.6 (62270729..62282179, complement)

Chromosome 9 - NC_000075.7 Genomic Context describing neighboring genes

Genomic regions, transcripts, and products

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Genomic Sequence:

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Expression

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See details

Project title: Mouse ENCODE transcriptome data Mouse ENCODE transcriptome data
Description: RNA profiling data sets generated by the Mouse ENCODE project.
BioProject: PRJNA66167
Publication: PMID 25409824
Analysis date: n/a

Bibliography

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GeneRIFs: Gene References Into Functions

What's a GeneRIF?

Downregulated SPESP1-driven fibroblast senescence decreases wound healing in aged mice.
Title: Downregulated SPESP1-driven fibroblast senescence decreases wound healing in aged mice.
The present study identified SPESP1 in the acrosome as the primary binding target of Peanut agglutinin (PNA) in the mouse testis. Further defining the specific lectin-glycoprotein relationships in individual cells will enhance the value of lectin histochemistry.
Title: Identification of sperm equatorial segment protein 1 in the acrosome as the primary binding target of peanut agglutinin (PNA) in the mouse testis.
These findings are consistent with the hypothesis that SPSPESP1 undergoes significant glycosylation in the testis and that the majority of these glycoconjugates are removed by the time sperm reach the caput epididymis.
Title: Dynamic Changes in Equatorial Segment Protein 1 (SPESP1) Glycosylation During Mouse Spermiogenesis.
SPESP1 is necessary to produce the fully 'fusion competent' sperm.
Title: Sperm equatorial segment protein 1, SPESP1, is required for fully fertile sperm in mouse.

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Variation

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Alleles

Alleles of this type are documented at Mouse Genome Informatics (MGI)

Targeted (1) 1 citation

General gene information

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Gene Ontology Provided by MGI

Function	Evidence Code	Pubs
enables protein binding	IPI Inferred from Physical Interaction more info	PubMed

Process	Evidence Code	Pubs
involved_in acrosome reaction	IBA Inferred from Biological aspect of Ancestor more info
acts_upstream_of_or_within acrosome reaction	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in fertilization	IDA Inferred from Direct Assay more info	PubMed
involved_in fusion of sperm to egg plasma membrane involved in single fertilization	IBA Inferred from Biological aspect of Ancestor more info
acts_upstream_of_or_within fusion of sperm to egg plasma membrane involved in single fertilization	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in sperm-egg recognition	IDA Inferred from Direct Assay more info	PubMed

Component	Evidence Code	Pubs
is_active_in acrosomal vesicle	IBA Inferred from Biological aspect of Ancestor more info
located_in acrosomal vesicle	IDA Inferred from Direct Assay more info	PubMed
located_in cytosol	ISO Inferred from Sequence Orthology more info
located_in intracellular membrane-bounded organelle	ISO Inferred from Sequence Orthology more info
located_in nucleoplasm	ISO Inferred from Sequence Orthology more info

General protein information

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Preferred Names: sperm equatorial segment protein 1

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.