Incidental Mutation 'IGL00922:Chkb'
Institutional Source Australian Phenomics Network (link to record)
Gene Symbol Chkb
Ensembl Gene ENSMUSG00000022617
Gene Namecholine kinase beta
SynonymsChetk, Chkl, CK/EK-beta
Accession Numbers
Is this an essential gene? Possibly essential (E-score: 0.544) question?
Stock #IGL00922
Quality Score
Chromosomal Location89426360-89429908 bp(-) (GRCm38)
Type of Mutationcritical splice donor site (1 bp from exon)
DNA Base Change (assembly) C to T at 89422288 bp
Amino Acid Change
Ref Sequence ENSEMBL: ENSMUSP00000104936 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000023289] [ENSMUST00000052315] [ENSMUST00000109313] [ENSMUST00000168376] [ENSMUST00000171666]
Predicted Effect probably benign
Transcript: ENSMUST00000023289
SMART Domains Protein: ENSMUSP00000023289
Gene: ENSMUSG00000022617

low complexity region 2 17 N/A INTRINSIC
Pfam:APH 70 317 1.9e-14 PFAM
Pfam:Choline_kinase 97 308 1.5e-76 PFAM
low complexity region 324 344 N/A INTRINSIC
Predicted Effect probably benign
Transcript: ENSMUST00000052315
Predicted Effect probably null
Transcript: ENSMUST00000109313
SMART Domains Protein: ENSMUSP00000104936
Gene: ENSMUSG00000078937

Pfam:CPT_N 1 47 2.5e-29 PFAM
Pfam:Carn_acyltransf 173 762 1.3e-183 PFAM
Predicted Effect noncoding transcript
Transcript: ENSMUST00000112664
Predicted Effect noncoding transcript
Transcript: ENSMUST00000115278
Predicted Effect noncoding transcript
Transcript: ENSMUST00000165419
Predicted Effect noncoding transcript
Transcript: ENSMUST00000165623
Predicted Effect probably benign
Transcript: ENSMUST00000168376
SMART Domains Protein: ENSMUSP00000129786
Gene: ENSMUSG00000078937

PDB:2LE3|A 1 42 1e-21 PDB
Predicted Effect probably benign
Transcript: ENSMUST00000168879
SMART Domains Protein: ENSMUSP00000128188
Gene: ENSMUSG00000078937

Pfam:Carn_acyltransf 3 148 3.5e-34 PFAM
Predicted Effect noncoding transcript
Transcript: ENSMUST00000170334
Predicted Effect noncoding transcript
Transcript: ENSMUST00000171140
Predicted Effect probably benign
Transcript: ENSMUST00000171666
SMART Domains Protein: ENSMUSP00000127191
Gene: ENSMUSG00000022617

Pfam:Choline_kinase 1 142 2.5e-51 PFAM
Pfam:APH 1 149 6.9e-14 PFAM
Pfam:EcKinase 2 116 8.8e-8 PFAM
Coding Region Coverage
Validation Efficiency
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] 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 sources 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]
PHENOTYPE: Homozygous null mice display progressive muscular weakness and dystrophy in the hindlimbs but have normal nerve and neuromuscular junction morphology. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 34 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
2210016L21Rik T C 5: 114,947,177 probably null Het
Atr T A 9: 95,907,345 M1518K probably damaging Het
Baiap2l1 C T 5: 144,318,967 G59D probably damaging Het
BC051019 C A 7: 109,720,676 C60F probably benign Het
Brms1l A G 12: 55,845,326 Y135C probably benign Het
Cachd1 T A 4: 100,966,966 S535T probably benign Het
Ccdc155 T C 7: 45,185,306 E532G possibly damaging Het
Coa7 G T 4: 108,338,308 G145C possibly damaging Het
Cobl T A 11: 12,254,866 D605V probably damaging Het
Ddx54 T A 5: 120,623,810 probably null Het
Dnah6 A T 6: 73,033,526 probably benign Het
Dnaja2 A T 8: 85,555,237 V4E probably damaging Het
Dnajc22 T G 15: 99,101,579 L215R possibly damaging Het
Drc7 G A 8: 95,077,978 V874I probably benign Het
Foxa2 A C 2: 148,044,818 S26A possibly damaging Het
Gal A T 19: 3,411,575 V70E probably benign Het
Gjb4 T C 4: 127,351,353 Y265C probably benign Het
Hc A G 2: 34,991,668 S1423P probably damaging Het
Hnrnpm C A 17: 33,649,902 R517L probably damaging Het
Map3k6 C T 4: 133,243,044 probably benign Het
Matn1 A T 4: 130,952,974 Q454L probably benign Het
Mlxip A T 5: 123,440,065 N148I probably damaging Het
Mre11a T C 9: 14,799,588 F193L probably damaging Het
Myo1h T C 5: 114,360,485 Y881H probably damaging Het
Nphp4 C T 4: 152,537,309 probably benign Het
Olfr803 T G 10: 129,691,454 I196L probably benign Het
Ptpn13 T A 5: 103,588,088 V2151D probably damaging Het
Rnf141 T C 7: 110,833,734 probably benign Het
Rpe65 A C 3: 159,614,542 D277A probably damaging Het
Sec14l1 C T 11: 117,153,229 T521M possibly damaging Het
Slc25a30 A T 14: 75,769,598 Y153N probably damaging Het
Slc6a12 C T 6: 121,360,455 A366V probably damaging Het
Trp53bp1 T A 2: 121,208,482 T1367S probably damaging Het
Vmn2r71 T G 7: 85,618,693 S118R probably benign Het
Other mutations in Chkb
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00661:Chkb APN 15 89427591 missense probably benign 0.05
IGL00943:Chkb APN 15 89428748 missense probably damaging 1.00
IGL01415:Chkb APN 15 89428784 missense probably damaging 1.00
IGL01537:Chkb APN 15 89427783 splice site probably benign
IGL01710:Chkb APN 15 89426640 nonsense probably null
IGL01720:Chkb APN 15 89427952 splice site probably null
IGL02725:Chkb APN 15 89429137 missense probably damaging 1.00
R0402:Chkb UTSW 15 89429407 missense probably benign 0.01
R1779:Chkb UTSW 15 89429057 missense possibly damaging 0.76
R2001:Chkb UTSW 15 89428766 missense probably damaging 1.00
R4999:Chkb UTSW 15 89428165 missense probably damaging 1.00
R5452:Chkb UTSW 15 89429585 unclassified probably benign
R5822:Chkb UTSW 15 89429512 missense probably benign 0.22
R6820:Chkb UTSW 15 89428176 missense probably damaging 1.00
Posted On2013-04-17