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CERK ceramide kinase [ Homo sapiens (human) ]

Gene ID: 64781, updated on 5-Aug-2018


Official Symbol
CERKprovided by HGNC
Official Full Name
ceramide kinaseprovided by HGNC
Primary source
See related
Ensembl:ENSG00000100422 MIM:610307; Vega:OTTHUMG00000150395
Gene type
protein coding
RefSeq status
Homo sapiens
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
Also known as
LK4; hCERK; dA59H18.2; dA59H18.3
CERK converts ceramide to ceramide 1-phosphate (C1P), a sphingolipid metabolite. Both CERK and C1P have been implicated in various cellular processes, including proliferation, apoptosis, phagocytosis, and inflammation (Kim et al., 2006 [PubMed 16488390]).[supplied by OMIM, Mar 2008]
Ubiquitous expression in small intestine (RPKM 16.4), duodenum (RPKM 15.6) and 25 other tissues See more

Genomic context

See CERK in Genome Data Viewer
Exon count:
Annotation release Status Assembly Chr Location
109 current GRCh38.p12 (GCF_000001405.38) 22 NC_000022.11 (46684410..46738255, complement)
105 previous assembly GRCh37.p13 (GCF_000001405.25) 22 NC_000022.10 (47080307..47134152, complement)

Chromosome 22 - NC_000022.11Genomic Context describing neighboring genes Neighboring gene uncharacterized LOC105373075 Neighboring gene GRAM domain containing 4 Neighboring gene uncharacterized LOC105373077 Neighboring gene uncharacterized LOC107985566 Neighboring gene TBC1 domain family member 22A Neighboring gene TBC1D22A antisense RNA 1

Genomic regions, transcripts, and products


  • Project title: HPA RNA-seq normal tissues
  • Description: RNA-seq was performed of tissue samples from 95 human individuals representing 27 different tissues in order to determine tissue-specificity of all protein-coding genes
  • BioProject: PRJEB4337
  • Publication: PMID 24309898
  • Analysis date: Wed Jun 15 11:32:44 2016


GeneRIFs: Gene References Into FunctionsWhat's a GeneRIF?

Pathways from BioSystems

  • Glycosphingolipid metabolism, organism-specific biosystem (from REACTOME)
    Glycosphingolipid metabolism, organism-specific biosystemThe steps involved in the synthesis of glycosphingolipids (sphingolipids with one or more sugars attached) are annotated here (Gault et al. 2010).
  • Integrated Breast Cancer Pathway, organism-specific biosystem (from WikiPathways)
    Integrated Breast Cancer Pathway, organism-specific biosystemThis pathway incorporates the most important proteins for Breast Cancer. The Rp score from the Connectivity-Maps (C-Maps) webserver was used to determine the rank of the most important proteins in Br...
  • Metabolism, organism-specific biosystem (from REACTOME)
    Metabolism, organism-specific biosystemMetabolic processes in human cells generate energy through the oxidation of molecules consumed in the diet and mediate the synthesis of diverse essential molecules not taken in the diet as well as th...
  • Metabolism of lipids and lipoproteins, organism-specific biosystem (from REACTOME)
    Metabolism of lipids and lipoproteins, organism-specific biosystemLipids are hydrophobic but otherwise chemically diverse molecules that play a wide variety of roles in human biology. They include ketone bodies, fatty acids, triacylglycerols, phospholipids and sphi...
  • Sphingolipid Metabolism, organism-specific biosystem (from WikiPathways)
    Sphingolipid Metabolism, organism-specific biosystemThe sphingolipid metabolites and genes (with the gene abbreviations shown in boxes, or enzyme names where gene names are ambiguous) are given for the condensation of serine and palmitoyl-CoA to form ...
  • Sphingolipid metabolism, organism-specific biosystem (from KEGG)
    Sphingolipid metabolism, organism-specific biosystem
    Sphingolipid metabolism
  • Sphingolipid metabolism, organism-specific biosystem (from REACTOME)
    Sphingolipid metabolism, organism-specific biosystemSphingolipids are derivatives of long chain sphingoid bases such as sphingosine (trans-1,3-dihydroxy 2-amino-4-octadecene), an 18-carbon unsaturated amino alcohol which is the most abundant sphingoid...
  • Sphingolipid metabolism, conserved biosystem (from KEGG)
    Sphingolipid metabolism, conserved biosystem
    Sphingolipid metabolism


Products Interactant Other Gene Complex Source Pubs Description

General gene information



Clone Names

  • FLJ21430, FLJ23239, KIAA1646, MGC131878, DKFZp434E0211

Gene Ontology Provided by GOA

Function Evidence Code Pubs
ATP binding IEA
Inferred from Electronic Annotation
more info
NAD+ kinase activity IEA
Inferred from Electronic Annotation
more info
ceramide kinase activity IDA
Inferred from Direct Assay
more info
ceramide kinase activity TAS
Traceable Author Statement
more info
dihydroceramide kinase activity IEA
Inferred from Electronic Annotation
more info
magnesium ion binding IDA
Inferred from Direct Assay
more info
protein binding IPI
Inferred from Physical Interaction
more info
Process Evidence Code Pubs
ceramide metabolic process IDA
Inferred from Direct Assay
more info
ceramide metabolic process TAS
Traceable Author Statement
more info
glycosphingolipid metabolic process TAS
Traceable Author Statement
more info
lipid phosphorylation IEA
Inferred from Electronic Annotation
more info
Component Evidence Code Pubs
cytoplasm IEA
Inferred from Electronic Annotation
more info
integral component of membrane IDA
Inferred from Direct Assay
more info
plasma membrane TAS
Traceable Author Statement
more info

General protein information

Preferred Names
ceramide kinase
acylsphingosine kinase
lipid kinase 4
lipid kinase LK4

NCBI Reference Sequences (RefSeq)

RefSeqs maintained independently of Annotated Genomes

These reference sequences exist independently of genome builds. Explain

These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.

mRNA and Protein(s)

  1. NM_022766.5NP_073603.2  ceramide kinase

    See identical proteins and their annotated locations for NP_073603.2

    Status: VALIDATED

    Source sequence(s)
    AL096766, AL118516
    Consensus CDS
    ENSP00000216264.8, OTTHUMP00000197262, ENST00000216264.12, OTTHUMT00000317924
    Conserved Domains (1) summary
    PLN02204; diacylglycerol kinase

RefSeqs of Annotated Genomes: Homo sapiens Annotation Release 109 details...Open this link in a new tab

The following sections contain reference sequences that belong to a specific genome build. Explain

Reference GRCh38.p12 Primary Assembly


  1. NC_000022.11 Reference GRCh38.p12 Primary Assembly

    46684410..46738255 complement
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. XM_017028909.1XP_016884398.1  ceramide kinase isoform X1

Suppressed Reference Sequence(s)

The following Reference Sequences have been suppressed. Explain

  1. NM_182661.1: Suppressed sequence

    NM_182661.1: This RefSeq was permanently suppressed because it is primarily UTR sequence.
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