Mutagenetix > Incidental Mutation

Incidental Mutation 'R0402:Chkb'

35643

Institutional Source

Beutler Lab

Gene Symbol

Chkb

Ensembl Gene

ENSMUSG00000022617

Gene Name

choline kinase beta

Synonyms

Chkl, CK/EK-beta, Chetk

MMRRC Submission

038607-MU

Accession Numbers

Essential gene?

Possibly non essential (E-score: 0.480) question?

Stock #

R0402 (G1)

Quality Score

Status

Validated

Chromosome

Chromosomal Location

89310563-89314111 bp(-) (GRCm39)

Type of Mutation

missense

DNA Base Change (assembly)

C to T at 89313610 bp (GRCm39)

Zygosity

Heterozygous

Amino Acid Change

Arginine to Glutamine at position 65 (R65Q)

Ref Sequence

ENSEMBL: ENSMUSP00000154958 (fasta)

Gene Model

predicted gene model for transcript(s): [ENSMUST00000023289] [ENSMUST00000052315] [ENSMUST00000109313] [ENSMUST00000168376] [ENSMUST00000168646] [ENSMUST00000170460] [ENSMUST00000171666]

AlphaFold

O55229

Predicted Effect

probably benign
Transcript: ENSMUST00000023289
AA Change: R65Q

PolyPhen 2 Score 0.003 (Sensitivity: 0.98; Specificity: 0.44)

SMART Domains

Protein: ENSMUSP00000023289
Gene: ENSMUSG00000022617
AA Change: R65Q

Domain	Start	End	E-Value	Type
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
AA Change: R65Q

PolyPhen 2 Score 0.015 (Sensitivity: 0.96; Specificity: 0.79)

Predicted Effect

probably benign
Transcript: ENSMUST00000109313

SMART Domains

Protein: ENSMUSP00000104936
Gene: ENSMUSG00000078937

Domain	Start	End	E-Value	Type
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

noncoding transcript
Transcript: ENSMUST00000171140

Predicted Effect

noncoding transcript
Transcript: ENSMUST00000166267

Predicted Effect

noncoding transcript
Transcript: ENSMUST00000170334

Predicted Effect

probably benign
Transcript: ENSMUST00000168376

SMART Domains

Protein: ENSMUSP00000129786
Gene: ENSMUSG00000078937

Domain	Start	End	E-Value	Type
PDB:2LE3\|A	1	42	1e-21	PDB

Predicted Effect

probably benign
Transcript: ENSMUST00000168646

Predicted Effect

probably benign
Transcript: ENSMUST00000170460

SMART Domains

Protein: ENSMUSP00000128026
Gene: ENSMUSG00000022617

Domain	Start	End	E-Value	Type
Pfam:Choline_kinase	1	176	1e-65	PFAM
Pfam:APH	8	176	6.1e-13	PFAM

Predicted Effect

probably benign
Transcript: ENSMUST00000171666

SMART Domains

Protein: ENSMUSP00000127191
Gene: ENSMUSG00000022617

Domain	Start	End	E-Value	Type
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

Meta Mutation Damage Score

0.0898

Coding Region Coverage

1x: 98.2%
3x: 97.0%
10x: 94.5%
20x: 88.7%

Validation Efficiency

100% (74/74)

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: 65 list
Gene	Ref	Var	Chr/Loc	Mutation	Predicted Effect	Zygosity
1700017N19Rik	A	T	10: 100,445,115 (GRCm39)	K165N	probably damaging	Het
Adam6b	T	A	12: 113,453,615 (GRCm39)	M144K	probably damaging	Het
Arhgap44	T	C	11: 64,922,903 (GRCm39)		probably benign	Het
Arl5c	T	A	11: 97,885,939 (GRCm39)	I21F	probably damaging	Het
Bglap2	C	T	3: 88,285,552 (GRCm39)	G40D	probably damaging	Het
Bptf	T	C	11: 106,964,940 (GRCm39)	E1303G	probably damaging	Het
Calhm1	T	C	19: 47,129,896 (GRCm39)	T209A	probably damaging	Het
Ccr8	A	G	9: 119,923,976 (GRCm39)		probably null	Het
Col4a1	T	C	8: 11,249,838 (GRCm39)		probably benign	Het
Cryzl2	A	G	1: 157,292,014 (GRCm39)	T98A	probably benign	Het
D430041D05Rik	T	C	2: 103,998,509 (GRCm39)	T1080A	probably damaging	Het
Dhx8	C	A	11: 101,643,223 (GRCm39)	T765N	probably damaging	Het
Dicer1	T	C	12: 104,697,323 (GRCm39)	D78G	probably benign	Het
Drd2	A	G	9: 49,316,271 (GRCm39)	I344V	probably benign	Het
Edil3	A	T	13: 89,347,570 (GRCm39)		probably benign	Het
Fbxw19	C	T	9: 109,313,493 (GRCm39)	G235D	probably benign	Het
Fzd1	T	C	5: 4,805,702 (GRCm39)	K627E	possibly damaging	Het
Garin1b	A	G	6: 29,323,901 (GRCm39)	T209A	probably benign	Het
Garin4	T	C	1: 190,896,637 (GRCm39)	D2G	probably benign	Het
Gm10638	A	G	8: 87,472,828 (GRCm39)		probably benign	Het
H6pd	G	T	4: 150,080,773 (GRCm39)	A24E	probably damaging	Het
Hectd2	G	T	19: 36,578,929 (GRCm39)		probably null	Het
Hps5	A	G	7: 46,440,333 (GRCm39)		probably benign	Het
Irx3	T	C	8: 92,527,296 (GRCm39)	N136S	possibly damaging	Het
Kcmf1	T	C	6: 72,826,568 (GRCm39)	M1V	probably null	Het
Klrb1	A	T	6: 128,687,583 (GRCm39)	F104I	probably benign	Het
Lrfn5	T	C	12: 61,886,803 (GRCm39)	M197T	probably benign	Het
Mpdz	A	C	4: 81,279,677 (GRCm39)	M51R	possibly damaging	Het
Mtbp	G	T	15: 55,432,466 (GRCm39)	E258*	probably null	Het
Mylk3	T	A	8: 86,079,539 (GRCm39)	H373L	probably damaging	Het
Myrfl	A	G	10: 116,664,882 (GRCm39)	S383P	probably damaging	Het
Nt5c	T	C	11: 115,381,468 (GRCm39)	*195W	probably null	Het
Ocstamp	A	G	2: 165,238,184 (GRCm39)	V360A	possibly damaging	Het
Or10ak16	A	T	4: 118,750,426 (GRCm39)	I49F	possibly damaging	Het
Or10al6	T	A	17: 38,083,284 (GRCm39)	C247S	probably damaging	Het
Or4k35	A	G	2: 111,100,208 (GRCm39)	F168S	probably damaging	Het
Or4p19	A	T	2: 88,242,378 (GRCm39)	V208D	probably damaging	Het
Or5an9	A	G	19: 12,186,953 (GRCm39)	T8A	probably damaging	Het
Otop2	T	C	11: 115,217,234 (GRCm39)		probably benign	Het
Pom121l2	A	T	13: 22,172,649 (GRCm39)		probably benign	Het
Pon2	T	A	6: 5,272,410 (GRCm39)	K137*	probably null	Het
Ppip5k2	T	A	1: 97,647,579 (GRCm39)	Q1049L	probably benign	Het
Ralgapa2	C	T	2: 146,276,729 (GRCm39)	V504M	probably damaging	Het
Rph3a	G	A	5: 121,080,317 (GRCm39)	H654Y	probably damaging	Het
Sh2d1b1	T	C	1: 170,107,342 (GRCm39)		probably benign	Het
Slc15a2	G	A	16: 36,595,960 (GRCm39)	T154I	probably benign	Het
Slc45a3	T	C	1: 131,905,265 (GRCm39)	V96A	possibly damaging	Het
Slc7a4	A	G	16: 17,393,497 (GRCm39)	S101P	probably damaging	Het
Smco2	T	C	6: 146,772,633 (GRCm39)		probably benign	Het
Spata2	A	T	2: 167,325,580 (GRCm39)	V413E	probably benign	Het
Specc1l	A	G	10: 75,082,260 (GRCm39)	E552G	probably damaging	Het
Sstr5	C	T	17: 25,711,008 (GRCm39)	V74M	probably benign	Het
Timm50	G	A	7: 28,006,280 (GRCm39)	R274W	probably damaging	Het
Tll2	A	G	19: 41,087,132 (GRCm39)	V573A	possibly damaging	Het
Tm7sf3	C	A	6: 146,507,685 (GRCm39)	R459M	possibly damaging	Het
Txk	A	G	5: 72,889,105 (GRCm39)		probably null	Het
Uroc1	A	G	6: 90,324,284 (GRCm39)	D436G	probably damaging	Het
Vmn1r13	T	A	6: 57,187,083 (GRCm39)	Y81N	possibly damaging	Het
Vmn2r19	A	G	6: 123,313,141 (GRCm39)	E737G	probably damaging	Het
Wfs1	A	G	5: 37,134,324 (GRCm39)		probably benign	Het
Zfp1	G	A	8: 112,396,875 (GRCm39)	E285K	probably damaging	Het
Zfp1005	T	A	2: 150,111,136 (GRCm39)	C609S	possibly damaging	Het
Zfp661	G	A	2: 127,419,640 (GRCm39)	Q167*	probably null	Het
Zswim8	T	C	14: 20,760,834 (GRCm39)	F36S	probably damaging	Het
Zw10	A	G	9: 48,980,023 (GRCm39)	T385A	probably benign	Het

Other mutations in Chkb

Allele	Source	Chr	Coord	Type	Predicted Effect	PPH Score
IGL00661:Chkb	APN	15	89,311,794 (GRCm39)	missense	probably benign	0.05
IGL00922:Chkb	APN	15	89,306,491 (GRCm39)	critical splice donor site	probably null
IGL00943:Chkb	APN	15	89,312,951 (GRCm39)	missense	probably damaging	1.00
IGL01415:Chkb	APN	15	89,312,987 (GRCm39)	missense	probably damaging	1.00
IGL01537:Chkb	APN	15	89,311,986 (GRCm39)	splice site	probably benign
IGL01710:Chkb	APN	15	89,310,843 (GRCm39)	nonsense	probably null
IGL01720:Chkb	APN	15	89,312,155 (GRCm39)	splice site	probably null
IGL02725:Chkb	APN	15	89,313,340 (GRCm39)	missense	probably damaging	1.00
R1779:Chkb	UTSW	15	89,313,260 (GRCm39)	missense	possibly damaging	0.76
R2001:Chkb	UTSW	15	89,312,969 (GRCm39)	missense	probably damaging	1.00
R4999:Chkb	UTSW	15	89,312,368 (GRCm39)	missense	probably damaging	1.00
R5452:Chkb	UTSW	15	89,313,788 (GRCm39)	unclassified	probably benign
R5822:Chkb	UTSW	15	89,313,715 (GRCm39)	missense	probably benign	0.22
R6820:Chkb	UTSW	15	89,312,379 (GRCm39)	missense	probably damaging	1.00
R8458:Chkb	UTSW	15	89,312,376 (GRCm39)	missense	possibly damaging	0.53
R9673:Chkb	UTSW	15	89,313,628 (GRCm39)	missense	probably damaging	1.00

Predicted Primers

PCR Primer
(F):5'- GTCCGAACTCCCAAGTTACGATCC -3'
(R):5'- GTTAAACCTAACGGAGCCCACGTC -3'

Sequencing Primer
(F):5'- TAGAGTCGTAGCAGCACCTC -3'
(R):5'- ACGGGACAGGGGTAGTC -3'

Posted On

2013-05-09