SPHK2

Sphingosine kinase 2 is a protein that in humans is encoded by the SPHK2 gene.[5]

SPHK2
Identifiers
Aliases	SPHK2, SK 2, SK-2, SPK 2, SPK-2, sphingosine kinase 2
External IDs	OMIM: 607092 MGI: 1861380 HomoloGene: 32456 GeneCards: SPHK2
Gene location (Human) Chr. Chromosome 19 (human)[1] Band 19q13.33 Start 48,619,291 bp[1] End 48,630,717 bp[1]
Gene location (Mouse) Chr. Chromosome 7 (mouse)[2] Band 7|7 B3 Start 45,358,891 bp[2] End 45,367,426 bp[2]
RNA expression pattern Bgee Human Mouse (ortholog) Top expressed in cingulate gyrus prefrontal cortex right lobe of liver Brodmann area 9 hypothalamus substantia nigra hippocampus proper amygdala right lobe of thyroid gland body of stomach Top expressed in saccule otic placode aortic valve lip epithelium of stomach duodenum ascending aorta crypt of lieberkuhn of small intestine jejunum esophagus More reference expression data BioGPS n/a
Gene ontology Molecular function sphingosine-1-phosphate receptor activity transferase activity nucleotide binding kinase activity protein binding ATP binding D-erythro-sphingosine kinase activity sphinganine kinase activity NAD+ kinase activity Cellular component cytoplasm lysosome membrane lysosomal membrane cytosol intracellular membrane-bounded organelle nucleosome nucleus mitochondrion mitochondrial inner membrane endoplasmic reticulum Biological process phosphorylation sphinganine-1-phosphate biosynthetic process female pregnancy sphingosine metabolic process sphingosine biosynthetic process negative regulation of apoptotic process sphingolipid biosynthetic process brain development blood vessel development positive regulation of cell population proliferation cell population proliferation lipid phosphorylation sphingosine-1-phosphate receptor signaling pathway metabolism negative regulation of cell growth negative regulation of histone deacetylation positive regulation of mast cell activation involved in immune response positive regulation of apoptotic process regulation of I-kappaB kinase/NF-kappaB signaling positive regulation of mast cell degranulation histone H2A-K5 acetylation histone H2B-K12 acetylation epigenetic maintenance of chromatin in transcription-competent conformation positive regulation of protein kinase C signaling positive regulation of calcium ion import negative regulation of histone deacetylase activity regulation of reactive oxygen species biosynthetic process cellular response to phorbol 13-acetate 12-myristate regulation of cytochrome-c oxidase activity positive regulation of ceramide biosynthetic process positive regulation of histone H3-K9 acetylation regulation of ATP biosynthetic process Sources:Amigo / QuickGO
Orthologs Species Human Mouse Entrez 56848 56632 Ensembl ENSG00000063176 ENSMUSG00000057342 UniProt Q9NRA0 Q9JIA7 RefSeq (mRNA) NM_001204158 NM_001204159 NM_001204160 NM_001243876 NM_020126 NM_001172561 NM_020011 NM_203280 RefSeq (protein) NP_001191087 NP_001191088 NP_001191089 NP_001230805 NP_064511 NP_001166032 NP_064395 NP_975009 Location (UCSC) Chr 19: 48.62 – 48.63 Mb Chr 7: 45.36 – 45.37 Mb PubMed search [3] [4]
Wikidata
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This gene encodes one of two sphingosine kinase isozymes that catalyze the phosphorylation of sphingosine into sphingosine 1-phosphate. Sphingosine 1-phosphate mediates many cellular processes including migration, proliferation and apoptosis, and also plays a role in several types of cancer by promoting angiogenesis and tumorigenesis. The encoded protein may play a role in breast cancer proliferation and chemoresistance. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Aug 2011].[5]

The researchers also found that the expression of sphingosine kinase 2 (SphK2) and the secretion of sphingosine-1-phosphate (S1P) were significantly upregulated in the lungs of CS-exposed mice with COPD-like symptoms.[6]