| 61826 | Chkb | choline kinase beta | ENCODES a protein that exhibits choline kinase activity; ethanolamine kinase activity (ortholog); INVOLVED IN muscle organ development (ortholog); phosphatidylcholine biosynthetic process (ortholog); phosphatidylethanolamine biosynthetic process (ortholog); PARTICIPATES IN glycerophospholipid metabo lic pathway; ASSOCIATED WITH intellectual disability (ortholog); megaconial type congenital muscular dystrophy (ortholog); muscular dystrophy (ortholog); INTERACTS WITH 2,3,7,8-tetrachlorodibenzodioxine; 6-propyl-2-thiouracil; acetamide | 7 | 122380592 | 122385102 | Rat | 112 | symbol , PhenoGen | gene, protein-coding, PROVISIONAL [RefSeq] |
| 62117 | Chkb | choline kinase beta | Enables choline kinase activity. Acts upstream of or within muscle organ development and phosphatidylcholine biosynthetic process. Predicted to be active in cytoplasm. Is expressed in several structures, including alimentary system; central nervous system; cranium; heart; and sensory organ. Used to study megaconial type congenital muscular dystrophy. Human ortholog(s) of this gene implicated in intellectual disability; megaconial type congenital muscular dystrophy; muscular dystrophy; narcolepsy; and recurrent hypersomnia. Orthologous to human CHKB (choline kinase beta). [provided by Alliance of Genome Resources, Jul 2025] | 15 | 89310552 | 89314130 | Mouse | 129 | symbol , PhenoGen , description | gene, protein-coding, VALIDATED [RefSeq] |
| 1604071 | CHKB | choline kinase beta | Choline kinase (CK) and ethanolamine kinase (EK) catalyze the phosphorylation of choline/ethanolamine to phosphocholine/phosphoethanolamine. This is the first enzyme in the biosynthesis of phosphatidylcholine/phosphatidylethanolamine in all animal cells. The highly purified CKs from mammalian source s and their recombinant gene products have been shown to have EK activity also, indicating that both activities reside on the same protein. The choline kinase-like protein encoded by CHKL belongs to the choline/ethanolamine kinase family; however, its exact function is not known. Read-through transcripts are expressed from this locus that include exons from the downstream CPT1B locus. [provided by RefSeq, Jun 2009] | 22 | 50578963 | 50582849 | Human | 135 | symbol , COSMIC , Human Proteome Map | gene, protein-coding, REVIEWED [RefSeq] |
| 9002953 | Chkb | choline kinase beta | ENCODES a protein that exhibits choline kinase activity (ortholog); ethanolamine kinase activity (ortholog); INVOLVED IN phosphatidylethanolamine biosynthetic process (ortholog); ASSOCIATED WITH intellectual disability (ortholog); megaconial type congenital muscular dystrophy (ortholog); muscular dy strophy (ortholog) | NW_004955413 | 33588375 | 33592054 | Chinchilla | 11 | symbol | gene, protein-coding, MODEL [RefSeq] |
| 11725506 | CHKB | choline kinase beta | ENCODES a protein that exhibits choline kinase activity (ortholog); INVOLVED IN CDP-choline pathway (inferred); lipid metabolic process (inferred); phosphatidylcholine biosynthetic process (inferred); ASSOCIATED WITH intellectual disability (ortholog); megaconial type congenital muscular dystrophy ( ortholog); muscular dystrophy (ortholog); FOUND IN cytoplasm (inferred) | 22 | 30825128 | 30829203 | Bonobo | 28 | symbol | gene, protein-coding, MODEL [RefSeq] |
| 12111096 | CHKB | choline kinase beta | ENCODES a protein that exhibits choline kinase activity (ortholog); INVOLVED IN CDP-choline pathway (inferred); lipid metabolic process (inferred); phospholipid biosynthetic process (inferred); ASSOCIATED WITH intellectual disability (ortholog); megaconial type congenital muscular dystrophy (ortholo g); muscular dystrophy (ortholog) | 10 | 16733071 | 16736797 | Dog | 23 | symbol | gene, protein-coding, MODEL [RefSeq] |
| 12486663 | Chkb | choline kinase beta | ENCODES a protein that exhibits choline kinase activity (ortholog); INVOLVED IN CDP-choline pathway (inferred); lipid metabolic process (inferred); phosphatidylcholine biosynthetic process (inferred); ASSOCIATED WITH intellectual disability (ortholog); megaconial type congenital muscular dystrophy ( ortholog); muscular dystrophy (ortholog); FOUND IN cytoplasm (inferred) | NW_004936629 | 242876 | 246806 | Squirrel | 26 | symbol | gene, protein-coding, MODEL [RefSeq] |
| 14268330 | CHKB | choline kinase beta | ENCODES a protein that exhibits choline kinase activity (ortholog); INVOLVED IN muscle organ development (ortholog); phosphatidylcholine biosynthetic process (ortholog); ASSOCIATED WITH intellectual disability (ortholog); megaconial type congenital muscular dystrophy (ortholog); muscular dystrophy ( ortholog) | | | | Pig | 30 | symbol | gene, protein-coding, PROVISIONAL [RefSeq] |
| 18629628 | CHKB | choline kinase beta | ENCODES a protein that exhibits choline kinase activity (ortholog); INVOLVED IN muscle organ development (ortholog); phosphatidylcholine biosynthetic process (ortholog); ASSOCIATED WITH intellectual disability (ortholog); megaconial type congenital muscular dystrophy (ortholog); muscular dystrophy ( ortholog); FOUND IN cytoplasm (inferred) | | | | Green Monkey | 31 | symbol | gene, protein-coding, MODEL [RefSeq] |
| 284422876 | chkb | | | | | | Tropical Clawed Frog | | symbol | gene, null |
| 18921427 | Chkb | choline kinase beta | ENCODES a protein that exhibits choline kinase activity (ortholog); INVOLVED IN muscle organ development (ortholog); phosphatidylcholine biosynthetic process (ortholog); ASSOCIATED WITH intellectual disability (ortholog); megaconial type congenital muscular dystrophy (ortholog); muscular dystrophy ( ortholog); FOUND IN cytoplasm (inferred) | | | | Naked Mole-Rat | 29 | symbol | gene, protein-coding, MODEL [RefSeq] |
| 625838401 | Chkb | choline kinase beta | ENCODES a protein that exhibits choline kinase activity (ortholog); ethanolamine kinase activity (ortholog); INVOLVED IN muscle organ development (ortholog); phosphatidylcholine biosynthetic process (ortholog); phosphatidylethanolamine biosynthetic process (ortholog); ASSOCIATED WITH intellectual di sability (ortholog); megaconial type congenital muscular dystrophy (ortholog); muscular dystrophy (ortholog) | | | | Black Rat | 15 | symbol | gene, protein-coding, MODEL [RefSeq] |
| 287202816 | chkb.L | | | | | | African Clawed Frog | | symbol | gene, null |
| 284814364 | chkb.S | | | | | | African Clawed Frog | | symbol | gene, null |
| 7254767 | CHKB-DT | CHKB divergent transcript | INTERACTS WITH aflatoxin B1; cisplatin; methotrexate | 22 | 50583026 | 50595281 | Human | 4 | symbol , old_gene_name , COSMIC , name , Human Proteome Map , old_gene_symbol | gene, ncrna, VALIDATED [RefSeq] |
| 5132985 | CHKB-CPT1B | CHKB-CPT1B readthrough (NMD candidate) | The genes CHKB and CPT1B are adjacent on chromosome 22 and read-through transcripts are expressed that include exons from both loci. The read-through transcripts are candidates for nonsense-mediated mRNA decay (NMD) and are unlikely to express proteins. [provide d by RefSeq, Jun 2009] | 22 | 50568861 | 50582999 | Human | 8 | symbol , COSMIC , name , description , Human Proteome Map | gene, ncrna, VALIDATED [RefSeq] |
| 2313193 | Gm44502 | predicted readthrough transcript (NMD candidate), 44502 | This locus represents naturally occurring read-through transcription between the neighboring choline kinase beta (Chkb) and carnitine palmitoyltransferase 1b, muscle (Cpt1b) genes. Similar read-through transcription has also been identified between the homologou s genes in human and rat. These read-through transcripts are candidates for nonsense-mediated mRNA decay (NMD) and are unlikely to produce a protein; the functional significance of these transcripts has yet to be determined. [provided by RefSeq, Nov 2010] | 15 | 89300608 | 89314130 | Mouse | | old_gene_name , description , old_gene_symbol | gene, ncrna, VALIDATED [RefSeq] |