Q3UH66 (WNK2_MOUSE) Reviewed, UniProtKB/Swiss-Prot
Last modified
May 1, 2013.
Version 70.
History...
Names·Attributes·General annotation·Ontologies·Alt products·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Alt products·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: Serine/threonine-protein kinase WNK2 EC=2.7.11.1 Alternative name(s): Protein kinase lysine-deficient 2 Protein kinase with no lysine 2 | ||||
| Gene names |
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| Organism | Mus musculus (Mouse) [Reference proteome] | ||||
| Taxonomic identifier | 10090 [NCBI] | ||||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Glires › Rodentia › Sciurognathi › Muroidea › Muridae › Murinae › Mus › Mus![]() |
Protein attributes
| Sequence length | 2149 AA. |
| Sequence status | Complete. |
| Protein existence | Evidence at protein level |
General annotation (Comments)
| Function | Serine/threonine kinase which plays an important role in the regulation of electrolyte homeostasis, cell signaling, survival, and proliferation. Acts as an activator and inhibitor of sodium-coupled chloride cotransporters and potassium-coupled chloride cotransporters respectively. Activates SLC12A2, SCNN1A, SCNN1B, SCNN1D and SGK1 and inhibits SLC12A5. Negatively regulates the EGF-induced activation of the ERK/MAPK-pathway and the downstream cell cycle progression. Affects MAPK3/MAPK1 activity by modulating the activity of MAP2K1 and this modulation depends on phosphorylation of MAP2K1 by PAK1. WNK2 acts by interfering with the activity of PAK1 by controlling the balance of the activity of upstream regulators of PAK1 activity, RHOA and RAC1, which display reciprocal activity. Ref.5 |
| Catalytic activity | ATP + a protein = ADP + a phosphoprotein. |
| Cofactor | Magnesium By similarity. |
| Enzyme regulation | Activation requires autophosphorylation of Ser-356. Phosphorylation of Ser-352 also promotes increased activity By similarity. |
| Subunit structure | Forms a complex with the phosphorylated form of STK39 in the brain. |
| Subcellular location | Cytoplasm By similarity. Cell membrane By similarity. |
| Tissue specificity | Brain and heart. Ref.5 |
| Post-translational modification | Autophosphorylated By similarity. Ref.5 |
| Sequence similarities | Belongs to the protein kinase superfamily. Ser/Thr protein kinase family. WNK subfamily. Contains 1 protein kinase domain. |
| Caution | Cys-224 is present instead of the conserved Lys which is expected to be an active site residue. Lys-207 appears to fulfill the required catalytic function. |
| Sequence caution | The sequence AAH46464.1 differs from that shown. Reason: Erroneous initiation. Translation N-terminally shortened. The sequence AAH55795.1 differs from that shown. Reason: Erroneous initiation. Translation N-terminally extended. The sequence BAE20646.1 differs from that shown. Reason: Erroneous initiation. Translation N-terminally extended. |
Ontologies
| Keywords | |
|---|---|
| Cellular component | Cell membrane Cytoplasm Membrane |
| Coding sequence diversity | Alternative splicing |
| Ligand | ATP-binding Nucleotide-binding |
| Molecular function | Kinase Serine/threonine-protein kinase Transferase |
| PTM | Phosphoprotein |
| Technical term | Complete proteome Reference proteome |
| Gene Ontology (GO) | |
| Biological_process | protein phosphorylation Inferred from direct assay Ref.5. Source: UniProtKB |
| Cellular_component | cytoplasm Inferred from electronic annotation. Source: UniProtKB-SubCell plasma membraneInferred from electronic annotation. Source: UniProtKB-SubCell |
| Molecular_function | ATP binding Inferred from electronic annotation. Source: UniProtKB-KW protein serine/threonine kinase activityInferred from electronic annotation. Source: UniProtKB-KW |
| Complete GO annotation... | |
Alternative products
| This entry describes 7 isoforms produced by alternative splicing. [Align] [Select] | ||||||
| Isoform 1 (identifier: Q3UH66-1) This isoform has been chosen as the 'canonical' sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry. | ||||||
| Note: No experimental confirmation available. | ||||||
| Isoform 2 (identifier: Q3UH66-2) The sequence of this isoform differs from the canonical sequence as follows: 1921-2004: Missing. | ||||||
| Note: No experimental confirmation available. | ||||||
| Isoform 3 (identifier: Q3UH66-3) The sequence of this isoform differs from the canonical sequence as follows: 1935-1935: R → AHASTPP 2019-2025: SLYDSPG → R | ||||||
| Note: No experimental confirmation available. | ||||||
| Isoform 4 (identifier: Q3UH66-4) The sequence of this isoform differs from the canonical sequence as follows: 1935-1935: R → AHASTPP 1971-2024: Missing. | ||||||
| Note: No experimental confirmation available. | ||||||
| Isoform 5 (identifier: Q3UH66-5) The sequence of this isoform differs from the canonical sequence as follows: 1935-1935: R → AHASTPP 2019-2025: SLYDSPG → R 2142-2149: DPESEKPD → GTVHSSLSGP...STPGPRLHIT | ||||||
| Note: No experimental confirmation available. | ||||||
| Isoform 6 (identifier: Q3UH66-6) The sequence of this isoform differs from the canonical sequence as follows: 731-742: Missing. 971-1068: Missing. 1935-1935: R → AHASTPP 1971-2024: Missing. | ||||||
| Note: No experimental confirmation available. | ||||||
| Isoform 7 (identifier: Q3UH66-7) The sequence of this isoform differs from the canonical sequence as follows: 971-1068: Missing. 1592-1593: AE → E 1935-1935: R → AHASTPP 2019-2025: SLYDSPG → R 2142-2149: DPESEKPD → EACALPTPPCKFLSRPSSGQPTEGRSISGGFHDTCPGGERGDENSLTPSG | ||||||
| Note: No experimental confirmation available. |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 2149 | 2149 | Serine/threonine-protein kinase WNK2 | PRO_0000278774 | |||||
Regions | |||||||||
| Domain | 195 – 453 | 259 | Protein kinase | ||||||
| Nucleotide binding | 201 – 209 | 9 | ATP By similarity | ||||||
| Compositional bias | 172 – 177 | 6 | Poly-Glu | ||||||
| Compositional bias | 645 – 1080 | 436 | Pro-rich | ||||||
| Compositional bias | 1430 – 1496 | 67 | Pro-rich | ||||||
| Compositional bias | 1594 – 1597 | 4 | Poly-Ser | ||||||
Sites | |||||||||
| Active site | 323 | 1 | Proton acceptor By similarity | ||||||
| Binding site | 207 | 1 | ATP By similarity | ||||||
Amino acid modifications | |||||||||
| Modified residue | 45 | 1 | Phosphoserine By similarity | ||||||
| Modified residue | 352 | 1 | Phosphoserine; by autocatalysis By similarity | ||||||
| Modified residue | 356 | 1 | Phosphoserine; by autocatalysis By similarity | ||||||
| Modified residue | 560 | 1 | Phosphoserine By similarity | ||||||
| Modified residue | 1098 | 1 | Phosphoserine By similarity | ||||||
| Modified residue | 1210 | 1 | Phosphoserine By similarity | ||||||
| Modified residue | 1507 | 1 | Phosphoserine By similarity | ||||||
| Modified residue | 1566 | 1 | Phosphoserine Ref.5 | ||||||
| Modified residue | 1594 | 1 | Phosphoserine By similarity | ||||||
| Modified residue | 1725 | 1 | Phosphoserine By similarity | ||||||
| Modified residue | 1726 | 1 | Phosphoserine By similarity | ||||||
| Modified residue | 1770 | 1 | Phosphoserine Ref.5 | ||||||
| Modified residue | 1797 | 1 | Phosphoserine Ref.5 | ||||||
| Modified residue | 1962 | 1 | Phosphoserine By similarity | ||||||
Natural variations | |||||||||
| Alternative sequence | 731 – 742 | 12 | Missing in isoform 6. | VSP_023366 | |||||
| Alternative sequence | 971 – 1068 | 98 | Missing in isoform 6 and isoform 7. | VSP_023367 | |||||
| Alternative sequence | 1592 – 1593 | 2 | AE → E in isoform 7. | VSP_023368 | |||||
| Alternative sequence | 1921 – 2004 | 84 | Missing in isoform 2. | VSP_023369 | |||||
| Alternative sequence | 1935 | 1 | R → AHASTPP in isoform 3, isoform 4, isoform 5, isoform 6 and isoform 7. | VSP_023370 | |||||
| Alternative sequence | 1971 – 2024 | 54 | Missing in isoform 4 and isoform 6. | VSP_023371 | |||||
| Alternative sequence | 2019 – 2025 | 7 | SLYDSPG → R in isoform 3, isoform 5 and isoform 7. | VSP_023372 | |||||
| Alternative sequence | 2142 – 2149 | 8 | DPESEKPD → GTVHSSLSGPPCTLPLCQYG GLLPDPVSWGPWVASGNPEG SWGSQSPTQVPVFPVFLRPP VISTPGPRLHIT in isoform 5. | VSP_023373 | |||||
| Alternative sequence | 2142 – 2149 | 8 | DPESEKPD → EACALPTPPCKFLSRPSSGQ PTEGRSISGGFHDTCPGGER GDENSLTPSG in isoform 7. | VSP_023374 | |||||
Experimental info | |||||||||
| Sequence conflict | 761 – 794 | 34 | PYLAP…QVPPQ → RRYLWPIFCSPQGWGTRPWT RPVHACLQGLLARE in BAC98249. Ref.4 | ||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "Lineage-specific biology revealed by a finished genome assembly of the mouse." Church D.M., Goodstadt L., Hillier L.W., Zody M.C., Goldstein S., She X., Bult C.J., Agarwala R., Cherry J.L., DiCuccio M., Hlavina W., Kapustin Y., Meric P., Maglott D., Birtle Z., Marques A.C., Graves T., Zhou S. Ponting C.P.PLoS Biol. 7:E1000112-E1000112(2009) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: C57BL/6J. |
| [2] | "The transcriptional landscape of the mammalian genome." Carninci P., Kasukawa T., Katayama S., Gough J., Frith M.C., Maeda N., Oyama R., Ravasi T., Lenhard B., Wells C., Kodzius R., Shimokawa K., Bajic V.B., Brenner S.E., Batalov S., Forrest A.R., Zavolan M., Davis M.J. Hayashizaki Y.Science 309:1559-1563(2005) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 2), NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] OF 1506-2149 (ISOFORM 5). Strain: C57BL/6J. Tissue: Retina. |
| [3] | "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)." The MGC Project Team Genome Res. 14:2121-2127(2004) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] OF 443-2149 (ISOFORM 6), NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] OF 801-2149 (ISOFORM 3), NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] OF 1513-2149 (ISOFORM 4). Strain: C57BL/6 and FVB/N. Tissue: Brain and Salivary gland. |
| [4] | "Prediction of the coding sequences of mouse homologues of KIAA gene: III. The complete nucleotide sequences of 500 mouse KIAA-homologous cDNAs identified by screening of terminal sequences of cDNA clones randomly sampled from size-fractionated libraries." Okazaki N., Kikuno R., Ohara R., Inamoto S., Koseki H., Hiraoka S., Saga Y., Nagase T., Ohara O., Koga H. DNA Res. 10:167-180(2003) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] OF 761-2149 (ISOFORM 7). Tissue: Brain. |
| [5] | "WNK2 is a novel regulator of essential neuronal cation-chloride cotransporters." Rinehart J., Vazquez N., Kahle K.T., Hodson C.A., Ring A.M., Gulcicek E.E., Louvi A., Bobadilla N.A., Gamba G., Lifton R.P. J. Biol. Chem. 286:30171-30180(2011) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION, TISSUE SPECIFICITY, PHOSPHORYLATION AT SER-1566; SER-1770 AND SER-1797, INTERACTION WITH STK39. |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | CAAA01187366 Genomic DNA. No translation available. AC140284 Genomic DNA. No translation available. AK044381 mRNA. Translation: BAE20646.1. Different initiation. AK147550 mRNA. Translation: BAE27991.1. BC046464 mRNA. Translation: AAH46464.1. Different initiation. BC055795 mRNA. Translation: AAH55795.1. Different initiation. BC060187 mRNA. Translation: AAH60187.1. AK129439 mRNA. Translation: BAC98249.1. |
| IPI | IPI00355244. IPI00408595. IPI00653345. IPI00828549. IPI00828654. IPI00828738. IPI00828980. |
| RefSeq | NP_083637.2. NM_029361.3. |
| UniGene | Mm.342723. |
3D structure databases | |
| ProteinModelPortal | Q3UH66. |
| SMR | Q3UH66. Positions 184-545. |
| ModBase | Search... |
PTM databases | |
| PhosphoSite | Q3UH66. |
Proteomic databases | |
| PaxDb | Q3UH66. |
| PRIDE | Q3UH66. |
Protocols and materials databases | |
| StructuralBiologyKnowledgebase | Search... |
Genome annotation databases | |
| Ensembl | ENSMUST00000160087; ENSMUSP00000124614; ENSMUSG00000037989. |
| GeneID | 75607. |
| KEGG | mmu:75607. |
| UCSC | uc007qis.2. mouse. uc007qiv.1. mouse. uc009val.1. mouse. |
Organism-specific databases | |
| CTD | 65268. |
| MGI | MGI:1922857. Wnk2. |
| Rouge | Search... |
Phylogenomic databases | |
| eggNOG | COG0515. |
| GeneTree | ENSGT00550000074385. |
| HOGENOM | HOG000139922. |
| HOVERGEN | HBG050345. |
| KO | K08867. |
| OrthoDB | EOG4NP72M. |
Gene expression databases | |
| ArrayExpress | Q3UH66. |
| Bgee | Q3UH66. |
| CleanEx | MM_WNK2. |
| Genevestigator | Q3UH66. |
Family and domain databases | |
| InterPro | IPR011009. Kinase-like_dom. IPR024678. Kinase_OSR1/WNK_CCT. IPR000719. Prot_kinase_cat_dom. IPR008271. Ser/Thr_kinase_AS. [Graphical view] |
| Pfam | PF12202. OSR1_C. 1 hit. PF00069. Pkinase. 1 hit. [Graphical view] |
| SUPFAM | SSF56112. Kinase_like. 1 hit. |
| PROSITE | PS00107. PROTEIN_KINASE_ATP. False negative. PS50011. PROTEIN_KINASE_DOM. 1 hit. PS00108. PROTEIN_KINASE_ST. 1 hit. [Graphical view] |
| ProtoNet | Search... |
Other | |
| ChiTaRS | WNK2. mouse. |
| NextBio | 343494. |
| SOURCE | Search... |
Entry information
| Entry name | WNK2_MOUSE | ||||||||
| Accession | Primary (citable) accession number: Q3UH66 Secondary accession number(s): Q3V387 Q811F2 | ||||||||
| Entry history |
| ||||||||
| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation program | Chordata Protein Annotation Program | ||||||||
Relevant documents
| Human and mouse protein kinases Human and mouse protein kinases: classification and index |
| MGD cross-references Mouse Genome Database (MGD) cross-references in UniProtKB/Swiss-Prot |
| SIMILARITY comments Index of protein domains and families |

Clusters with
