AQP6

Aquaporin 6, kidney specific

Available structures

Ortholog search: PDBe, RCSB

List of PDB id codes
1S6E

Identifiers

Symbols

AQP6 ; AQP2L; KID

External IDs

OMIM: 601383 HomoloGene: 20399 IUPHAR: 693 GeneCards: AQP6 Gene

Gene ontology
Molecular function	• anion channel activity • nitrate transmembrane transporter activity • water channel activity • glycerol channel activity
Cellular component	• integral component of plasma membrane • apical plasma membrane • transport vesicle membrane
Biological process	• transport • water transport • excretion • cellular water homeostasis • nitrate transport • glycerol transport • odontogenesis • transmembrane transport • anion transmembrane transport
Sources: Amigo / QuickGO

Orthologs

Species

Human

Mouse

363

RefSeq (mRNA)

RefSeq (protein)

Location (UCSC)

Chr 12:
49.97 – 49.98 Mb

Chr 15:
99.6 – 99.61 Mb

PubMed search

Aquaporin 6, kidney specific is a protein in humans that is encoded by the AQP6 gene.^[1]

The protein encoded by this gene is an aquaporin protein, which functions as a water channel in cells. Aquaporins are a family of small integral membrane proteins related to the major intrinsic protein (MIP or AQP0). This protein is specific for the kidney. This gene and related family members AQP0, AQP2, and AQP5 reside in a cluster on chromosome 12q13.^[1]

References

1 2 "Entrez Gene: Aquaporin 6, kidney specific". Retrieved 2012-04-10.

Ikeda M, Beitz E, Kozono D, Guggino WB, Agre P, Yasui M (Oct 2002). "Characterization of aquaporin-6 as a nitrate channel in mammalian cells. Requirement of pore-lining residue threonine 63". The Journal of Biological Chemistry 277 (42): 39873–9. doi:10.1074/jbc.M207008200. PMID 12177001.
Ma T, Yang B, Umenishi F, Verkman AS (Aug 1997). "Closely spaced tandem arrangement of AQP2, AQP5, and AQP6 genes in a 27-kilobase segment at chromosome locus 12q13". Genomics 43 (3): 387–9. doi:10.1006/geno.1997.4836. PMID 9268644.
Ishiyama G, Lopez IA, Beltran-Parrazal L, Ishiyama A (Jun 2010). "Immunohistochemical localization and mRNA expression of aquaporins in the macula utriculi of patients with Meniere's disease and acoustic neuroma". Cell and Tissue Research 340 (3): 407–19. doi:10.1007/s00441-010-0975-7. PMC 2882038. PMID 20461409.
Wang W, Hart PS, Piesco NP, Lu X, Gorry MC, Hart TC (Mar 2003). "Aquaporin expression in developing human teeth and selected orofacial tissues". Calcified Tissue International 72 (3): 222–7. doi:10.1007/s00223-002-1014-9. PMID 12522663.
Yusenko MV, Zubakov D, Kovacs G (2009). "Gene expression profiling of chromophobe renal cell carcinomas and renal oncocytomas by Affymetrix GeneChip using pooled and individual tumours". International Journal of Biological Sciences 5 (6): 517–27. PMC 2726578. PMID 19680475.
Ma T, Yang B, Kuo WL, Verkman AS (Aug 1996). "cDNA cloning and gene structure of a novel water channel expressed exclusively in human kidney: evidence for a gene cluster of aquaporins at chromosome locus 12q13". Genomics 35 (3): 543–50. doi:10.1006/geno.1996.0396. PMID 8812490.

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

By gating mechanism

Ion channel class	Ligand-gated Light-gated Voltage-gated Stretch-activated

see also disorders

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AQP6

References

Further reading