CatSper2

Protein-coding gene in the species Homo sapiens

CATSPER2

Identifiers

Aliases

CATSPER2, CatSper2, cation channel sperm associated 2

External IDs

OMIM: 607249; MGI: 2387404; HomoloGene: 77423; GeneCards: CATSPER2; OMA:CATSPER2 - orthologs

Gene location (Human)

Chr.	Chromosome 15 (human)^[1]

Band	15q15.3	Start	43,628,503 bp^[1]
Band	15q15.3	End	43,668,118 bp^[1]

Gene location (Mouse)

Chr.	Chromosome 2 (mouse)^[2]

Band	2\|2 E5	Start	121,223,112 bp^[2]
Band	2\|2 E5	End	121,244,273 bp^[2]

RNA expression pattern

Bgee

Human

Mouse (ortholog)

Top expressed in

cerebellar vermis

anterior pituitary

right uterine tube

nipple

right lobe of thyroid gland

Brodmann area 9

parietal lobe

nucleus accumbens

hypothalamus

postcentral gyrus

Top expressed in

seminiferous tubule

spermatid

spermatocyte

soleus muscle

submandibular gland

molar

ankle

thoracic diaphragm

tibialis anterior muscle

pineal gland

More reference expression data

BioGPS

n/a

Gene ontology
Molecular function	calcium activated cation channel activity calcium channel activity voltage-gated ion channel activity ion channel activity protein binding voltage-gated sodium channel activity
Cellular component	integral component of membrane CatSper complex cell projection membrane plasma membrane cilium motile cilium
Biological process	cell differentiation membrane depolarization during action potential regulation of ion transmembrane transport ion transport multicellular organism development calcium ion transmembrane transport transmembrane transport spermatogenesis sperm-egg recognition calcium ion transport neuronal action potential flagellated sperm motility sodium ion transmembrane transport fertilization sperm capacitation response to progesterone
Sources:Amigo / QuickGO

Orthologs

Species

Human

Mouse

Entrez


117155


212670

Ensembl


ENSG00000166762


ENSMUSG00000033486

UniProt


Q96P56


A2ARP9

RefSeq (mRNA)


NM_001282309 NM_001282310 NM_054020 NM_172095 NM_172097


NM_153075

RefSeq (protein)


NP_001269238 NP_001269239 NP_742093


n/a

Location (UCSC)

Chr 15: 43.63 – 43.67 Mb

Chr 2: 121.22 – 121.24 Mb

PubMed search

^[3]

^[4]

Wikidata

View/Edit Human

View/Edit Mouse

CatSper2, is a protein which in humans is encoded by the CATSPER2 gene.^[5]^[6] 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.^[7]

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. This gene is part of a tandem repeat on chromosome 15q15; the second copy of this gene is thought to be a pseudogene.^[8]

References

^ ^a ^b ^c GRCh38: Ensembl release 89: ENSG00000166762 – Ensembl, May 2017
^ ^a ^b ^c GRCm38: Ensembl release 89: ENSMUSG00000033486 – Ensembl, May 2017
^ "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^ "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^ 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.
^ 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.
^ *"CatSper and Two-Pore Channels: Introduction". IUPHAR Database of Receptors and Ion Channels. International Union of Basic and Clinical Pharmacology.
^ "Entrez Gene: CatSper2".

Strausberg RL, Feingold EA, Grouse LH, et al. (2002). "Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences". Proc. Natl. Acad. Sci. U.S.A. 99 (26): 16899–903. Bibcode:2002PNAS...9916899M. doi:10.1073/pnas.242603899. PMC 139241. PMID 12477932.
Zhang D, Chen J, Saraf A, et al. (2006). "Association of Catsper1 or -2 with Ca(v)3.3 leads to suppression of T-type calcium channel activity". J. Biol. Chem. 281 (31): 22332–41. doi:10.1074/jbc.M511288200. PMID 16740636.
Garbers DL (2001). "Ion channels. Swimming with sperm". Nature. 413 (6856): 579, 581–2. Bibcode:2001Natur.413..579G. doi:10.1038/35098164. PMID 11595929. S2CID 6099942.
Quill TA, Ren D, Clapham DE, Garbers DL (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.
Ota T, Suzuki Y, Nishikawa T, et al. (2004). "Complete sequencing and characterization of 21,243 full-length human cDNAs". Nat. Genet. 36 (1): 40–5. doi:10.1038/ng1285. PMID 14702039.
Clapham DE, Garbers DL (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.

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

Membrane transport protein: ion channels (TC 1A)

Ca²⁺: Calcium channel

Ligand-gated	Inositol trisphosphate receptor 1 2 3 Ryanodine receptor 1 2 3
Voltage-gated	L-type/Ca_vα 1.1 1.2 1.3 1.4 N-type/Ca_vα2.2 P-type/Ca_vα 2.1 Q-type/Ca_vα2.1 R-type/Ca_vα2.3 T-type/Ca_vα 3.1 3.2 3.3 α₂δ-subunits 1 2 β-subunits β1 β2 β3 β4 γ-subunits γ1 γ2 γ3 γ4 Cation channels of sperm 1 2 3 4 Two-pore channel 1 2

Na⁺: Sodium channel

Constitutively active	Epithelial sodium channel α β γ δ
Proton-gated	Amiloride-sensitive cation channel 1 2 3 4
Voltage-gated	Na_vα 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 7A Na_vβ 1 2 3 4

K⁺: Potassium channel

Calcium-activated	BK channel α1 β1 β2 β3 β4 SK channel SK1 SK2 SK3 IK channel IK1 K_Ca 1.1 2.1 2.2 2.3 3.1 4.1 4.2 5.1
Inward-rectifier	K_ATP K_ir 1.1 2.1 2.2 2.3 2.4 2.6 GIRK/K_ir 3.1 3.2 3.3 3.4 K_ir 4.1 4.2 5.1 6.1 6.2 7.1
Tandem pore domain	K2P 1 2 3 4 5 6 7 9 10 12 13 15 16 17 18
Voltage-gated	K_vα1-6 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 2.1 2.2 3.1 3.2 3.3 3.4 4.1 4.2 4.3 5.1 6.1 6.2 6.3 6.4 K_vα7-12 7.1 7.2 7.3 7.4 7.5 8.1 8.2 9.1 9.2 9.3 10.1 10.2 11.1/hERG 11.2 11.3 12.1 12.2 12.3 K_vβ 1 2 3 KCNIP 1 2 3 4 minK/ISK minK/ISK-like MiRP 1 2 3 Shaker (gene)

Miscellaneous

Cl⁻: Chloride channel	Calcium-activated chloride channels Anoctamin ANO1 Bestrophin 1 2 Chloride Channel Accessory 1 2 3 4 CFTR CLCN 1 2 3 4 5 6 7 KA KB CLIC 1 2 3 4 5 6 L1 CLNS 1A 1B
H⁺: Proton channel	HVCN1
M⁺: CNG cation channel	α 1 2 3 4 β 1 2 3 HCN FC 1 2 3 4
M⁺: TRP cation channel	TRPA (1) TRPC 1 2 3 4 4AP 5 6 7 TRPM 1 2 3 4 5 6 7 8 TRPML 1 2 3 TRPN TRPP 1 2 TRPV 1 2 3 4 5 6
H₂O (+ solutes): Porin	Aquaporin 0 1 2 3 4 5 6 7 8 9 Voltage-dependent anion channel 1 2 3 General bacterial porin family
Cytoplasm: Gap junction	Connexin A GJA1 GJA3 GJA4 GJA5 GJA8 GJA9 GJA10 B GJB1 GJB2 GJB3 GJB4 GJB5 GJB6 GJB7 C GJC1 GJC2 GJC3 D GJD2 GJD3 GJD4 Innexin