CatSper1

Last updated
CATSPER1
Identifiers
Aliases CATSPER1 , CATSPER, SPGF7, CatSper1, cation channel sperm associated 1
External IDs OMIM: 606389 MGI: 2179947 HomoloGene: 14207 GeneCards: CATSPER1
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_053054

NM_139301

RefSeq (protein)

NP_444282

NP_647462

Location (UCSC) Chr 11: 66.02 – 66.03 Mb Chr 19: 5.39 – 5.39 Mb
PubMed search [3] [4]
Wikidata
View/Edit Human View/Edit Mouse

CatSper1, is a protein which in humans is encoded by the CATSPER1 gene. [5] [6] [7] CatSper1 is a member of the cation channels of sperm family of protein. The four proteins in this family together form a Ca2+-permeant ion channel specific essential for the correct function of sperm cells. [8]

Contents

Function

Calcium ions play a primary role in the regulation of sperm motility. This gene belongs to a family of putative cation channels that are specific to spermatozoa and localize to the flagellum. The protein family features a single repeat with six membrane-spanning segments and a predicted calcium-selective pore region. [9]

Related Research Articles

<span class="mw-page-title-main">Spermatozoon</span> Motile sperm cell

A spermatozoon is a motile sperm cell, or moving form of the haploid cell that is the male gamete. A spermatozoon joins an ovum to form a zygote.

<span class="mw-page-title-main">Potassium channel</span> Ion channel that selectively passes K+

Potassium channels are the most widely distributed type of ion channel found in virtually all organisms. They form potassium-selective pores that span cell membranes. Potassium channels are found in most cell types and control a wide variety of cell functions.

Hyperactivation is a type of sperm motility. Hyperactivated sperm motility is characterised by a high amplitude, asymmetrical beating pattern of the sperm tail (flagellum). This type of motility may aid in sperm penetration of the zona pellucida, which encloses the ovum.

<span class="mw-page-title-main">Cyclic nucleotide–gated ion channel</span>

Cyclic nucleotide–gated ion channels or CNG channels are ion channels that function in response to the binding of cyclic nucleotides. CNG channels are nonselective cation channels that are found in the membranes of various tissue and cell types, and are significant in sensory transduction as well as cellular development. Their function can be the result of a combination of the binding of cyclic nucleotides and either a depolarization or a hyperpolarization event. Initially discovered in the cells that make up the retina of the eye, CNG channels have been found in many different cell types across both the animal and the plant kingdoms. CNG channels have a very complex structure with various subunits and domains that play a critical role in their function. CNG channels are significant in the function of various sensory pathways including vision and olfaction, as well as in other key cellular functions such as hormone release and chemotaxis. CNG channels have also been found to exist in prokaryotes, including many spirochaeta, though their precise role in bacterial physiology remains unknown.

The cation channels of sperm also known as Catsper channels or CatSper, are ion channels that are related to the two-pore channels and distantly related to TRP channels. The four members of this family form voltage-gated Ca2+ channels that seem to be specific to sperm. As sperm encounter the more alkaline environment of the female reproductive tract, CatSper channels become activated by the altered ion concentration. These channels are required for proper fertilization. The study of these channels has been slow because they do not traffic to the cell membrane in many heterologous systems.

<span class="mw-page-title-main">Ruthenium red</span> Chemical compound

The inorganic dye ammoniated ruthenium oxychloride, also known as ruthenium red, is used in histology to stain aldehyde fixed mucopolysaccharides.

<span class="mw-page-title-main">MCOLN1</span> Protein-coding gene in the species Homo sapiens

Mucolipin-1 also known as TRPML1 is a protein that in humans is encoded by the MCOLN1 gene. It is a member of the small family of the TRPML channels, a subgroup of the large protein family of TRP ion channels.

<span class="mw-page-title-main">Sperm motility</span> Process involved in the controlled movement of a sperm cell

Sperm motility describes the ability of sperm to move properly through the female reproductive tract or through water to reach the egg. Sperm motility can also be thought of as the quality, which is a factor in successful conception; sperm that do not "swim" properly will not reach the egg in order to fertilize it. Sperm motility in mammals also facilitates the passage of the sperm through the cumulus oophorus and the zona pellucida, which surround the mammalian oocyte.

<span class="mw-page-title-main">HSPA1B</span> Human gene

Human gene HSPA1B is an intron-less gene which encodes for the heat shock protein HSP70-2, a member of the Hsp70 family of proteins. The gene is located in the major histocompatibility complex, on the short arm of chromosome 6, in a cluster with two paralogous genes, HSPA1A and HSPA1L. HSPA1A and HSPA1B produce nearly identical proteins because the few differences in their DNA sequences are almost exclusively synonymous substitutions or in the three prime untranslated region, heat shock 70kDa protein 1A, from HSPA1A, and heat shock 70kDa protein 1B, from HSPA1B. A third, more modified paralog to these genes exists in the same region, HSPA1L, which shares a 90% homology with the other two.

<span class="mw-page-title-main">Cation channel superfamily</span> Family of ion channel proteins

The transmembrane cation channel superfamily was defined in InterPro and Pfam as the family of tetrameric ion channels. These include the sodium, potassium, calcium, ryanodine receptor, HCN, CNG, CatSper, and TRP channels. This large group of ion channels apparently includes families 1.A.1, 1.A.2, 1.A.3, and 1.A.4 of the TCDB transporter classification.

<span class="mw-page-title-main">CIB1</span> Protein-coding gene in the species Homo sapiens

Calcium and integrin-binding protein 1 is a protein that in humans is encoded by the CIB1 gene and is located in Chromosome 15. The protein encoded by this gene is a member of the calcium-binding protein family. The specific function of this protein has not yet been determined; however this protein is known to interact with DNA-dependent protein kinase and may play a role in kinase-phosphatase regulation of DNA end-joining. This protein also interacts with integrin alpha(IIb)beta(3), which may implicate this protein as a regulatory molecule for alpha(IIb)beta(3).

<span class="mw-page-title-main">ASIC1</span> Protein-coding gene in humans

Acid-sensing ion channel 1 (ASIC1) also known as amiloride-sensitive cation channel 2, neuronal (ACCN2) or brain sodium channel 2 (BNaC2) is a protein that in humans is encoded by the ASIC1 gene. The ASIC1 gene is one of the five paralogous genes that encode proteins that form trimeric acid-sensing ion channels (ASICs) in mammals. The cDNA of this gene was first cloned in 1996. The ASIC genes have splicing variants that encode different proteins that are called isoforms.

<span class="mw-page-title-main">DNAI1</span> Protein-coding gene in the species Homo sapiens

Dynein axonemal intermediate chain 1 is a protein that in humans is encoded by the DNAI1 gene.

<span class="mw-page-title-main">TPCN1</span> Protein-coding gene in the species Homo sapiens

Two pore segment channel 1 (TPC1) is a human protein encoded by the TPCN1 gene. The protein encoded by this gene is an ion channel. In contrast to other calcium and sodium channels which have four homologous domains, each containing 6 transmembrane segments, TPCN1 only contains two domains.

<span class="mw-page-title-main">TPCN2</span> Protein-coding gene in the species Homo sapiens

Two pore segment channel 2 (TPC2) is a protein which in humans is encoded by the TPCN2 gene. TPC2 is an ion channel, however, in contrast to other calcium and sodium channels which have four homologous domains, each containing 6 transmembrane segments, TPCN1 only contains two domain.

<span class="mw-page-title-main">VDAC3</span> Protein-coding gene in the species Homo sapiens

Voltage-dependent anion-selective channel protein 3 (VDAC3) is a protein that in humans is encoded by the VDAC3 gene on chromosome 8. The protein encoded by this gene is a voltage-dependent anion channel and shares high structural homology with the other VDAC isoforms. Nonetheless, VDAC3 demonstrates limited pore-forming ability and, instead, interacts with other proteins to perform its biological functions, including sperm flagella assembly and centriole assembly. Mutations in VDAC3 have been linked to male infertility, as well as Parkinson’s disease.

<span class="mw-page-title-main">CatSper2</span> Protein-coding gene in the species Homo sapiens

CatSper2, is a protein which in humans is encoded by the CATSPER2 gene. CatSper2 is a member of the cation channels of sperm family of protein. The four proteins in this family together form a Ca2+-permeant ion channel specific essential for the correct function of sperm cells.

<span class="mw-page-title-main">CatSper3</span> Protein-coding gene in the species Homo sapiens

CatSper3, is a protein which in humans is encoded by the CATSPER3 gene. CatSper3 is a member of the cation channels of sperm family of proteins. The four proteins in this family together form a Ca2+-permeant ion channel specific essential for the correct function of sperm cells.

<span class="mw-page-title-main">CatSper4</span> Protein-coding gene in the species Homo sapiens

CatSper4, is a protein which in humans is encoded by the CATSPER4 gene. CatSper1 is a member of the cation channels of sperm family of protein. The four proteins in this family together form a Ca2+-permeant ion channel specific essential for the correct function of sperm cells.

<span class="mw-page-title-main">HVCN1</span> Protein-coding gene in the species Homo sapiens

Voltage-gated hydrogen channel 1 is a protein that in humans is encoded by the HVCN1 gene.

References

  1. 1 2 3 GRCh38: Ensembl release 89: ENSG00000175294 - Ensembl, May 2017
  2. 1 2 3 GRCm38: Ensembl release 89: ENSMUSG00000038498 - Ensembl, May 2017
  3. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. Quill TA, Ren D, Clapham DE, Garbers DL (October 2001). "A voltage-gated ion channel expressed specifically in spermatozoa". Proc. Natl. Acad. Sci. U.S.A. 98 (22): 12527–31. Bibcode:2001PNAS...9812527Q. doi: 10.1073/pnas.221454998 . PMC   60087 . PMID   11675491.
  6. Ren D, Navarro B, Perez G, Jackson AC, Hsu S, Shi Q, Tilly JL, Clapham DE (October 2001). "A sperm ion channel required for sperm motility and male fertility". Nature. 413 (6856): 603–9. Bibcode:2001Natur.413..603R. doi:10.1038/35098027. PMC   8462998 . PMID   11595941. S2CID   4424815.
  7. Clapham DE, Garbers DL (December 2005). "International Union of Pharmacology. L. Nomenclature and structure-function relationships of CatSper and two-pore channels". Pharmacol. Rev. 57 (4): 451–4. doi:10.1124/pr.57.4.7. PMID   16382101. S2CID   35096827.
  8. "CatSper and Two-Pore Channels: Introduction". IUPHAR Database of Receptors and Ion Channels. International Union of Basic and Clinical Pharmacology.
  9. "Entrez Gene: CatSper1".

Further reading

This article incorporates text from the United States National Library of Medicine, which is in the public domain.