Mutagenetix > Incidental Mutation

Incidental Mutation 'F5426:Cdk5rap2'

585

Institutional Source

Beutler Lab

Gene Symbol

Cdk5rap2

Ensembl Gene

ENSMUSG00000039298

Gene Name

CDK5 regulatory subunit associated protein 2

Synonyms

an, 2900018K03Rik

Accession Numbers

Essential gene?

Possibly non essential (E-score: 0.449) question?

Stock #

F5426 (G1) of strain 24G1

Quality Score

Status

Validated

Chromosome

Chromosomal Location

70135092-70328672 bp(-) (GRCm39)

Type of Mutation

missense

DNA Base Change (assembly)

A to T at 70173040 bp (GRCm39)

Zygosity

Heterozygous

Amino Acid Change

Valine to Glutamic Acid at position 1344 (V1344E)

Ref Sequence

ENSEMBL: ENSMUSP00000119891 (fasta)

Gene Model

predicted gene model for transcript(s): [ENSMUST00000076541] [ENSMUST00000138561] [ENSMUST00000144099]

AlphaFold

Q8K389

Predicted Effect

probably benign
Transcript: ENSMUST00000076541

Predicted Effect

probably benign
Transcript: ENSMUST00000138561
AA Change: V84E

PolyPhen 2 Score 0.000 (Sensitivity: 1.00; Specificity: 0.00)

SMART Domains

Protein: ENSMUSP00000116928
Gene: ENSMUSG00000039298
AA Change: V84E

Domain	Start	End	E-Value	Type
Blast:BRLZ	228	284	1e-13	BLAST
low complexity region	297	314	N/A	INTRINSIC
low complexity region	368	386	N/A	INTRINSIC

Predicted Effect

probably benign
Transcript: ENSMUST00000140108

Predicted Effect

probably benign
Transcript: ENSMUST00000144099
AA Change: V1344E

PolyPhen 2 Score 0.000 (Sensitivity: 1.00; Specificity: 0.00)

SMART Domains

Protein: ENSMUSP00000119891
Gene: ENSMUSG00000039298
AA Change: V1344E

Domain	Start	End	E-Value	Type
Pfam:Cnn_1N	58	130	3.6e-26	PFAM
coiled coil region	210	345	N/A	INTRINSIC
low complexity region	368	381	N/A	INTRINSIC
coiled coil region	388	462	N/A	INTRINSIC
coiled coil region	569	616	N/A	INTRINSIC
low complexity region	761	776	N/A	INTRINSIC
low complexity region	791	800	N/A	INTRINSIC
coiled coil region	960	1001	N/A	INTRINSIC
coiled coil region	1112	1140	N/A	INTRINSIC
coiled coil region	1200	1237	N/A	INTRINSIC
Blast:BRLZ	1479	1535	6e-13	BLAST
low complexity region	1548	1565	N/A	INTRINSIC
low complexity region	1619	1637	N/A	INTRINSIC
low complexity region	1700	1711	N/A	INTRINSIC
low complexity region	1811	1822	N/A	INTRINSIC

Meta Mutation Damage Score

0.0898

Coding Region Coverage

1x: 78.1%
3x: 56.4%

Het Detection Efficiency

35.2%

Validation Efficiency

91% (29/32)

MGI Phenotype

FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] This gene encodes a regulator of CDK5 (cyclin-dependent kinase 5) activity. The protein encoded by this gene is localized to the centrosome and Golgi complex, interacts with CDK5R1 and pericentrin (PCNT), plays a role in centriole engagement and microtubule nucleation, and has been linked to primary microcephaly and Alzheimer's disease. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2013]
PHENOTYPE: Homozygous mutant phenotype varies by strain background. Severely affected mutants exhibit small size, severe anemia, and neonatal death. Mildly affected mutants are viable with mild macrocytic anemia, reduced fertility and radiation senstitivity. [provided by MGI curators]

Allele List at MGI

All alleles(22) : Targeted, other(1) Gene trapped(20) Radiation induced(1)

Other mutations in this stock

Total: 10 list
Gene	Ref	Var	Chr/Loc	Mutation	Predicted Effect	Zygosity
D16Ertd472e	C	T	16: 78,344,889 (GRCm39)	C73Y	probably damaging	Het
Grk4	G	A	5: 34,902,503 (GRCm39)		probably benign	Het
Odc1	G	A	12: 17,599,424 (GRCm39)		probably null	Het
Or5v1	A	C	17: 37,810,427 (GRCm39)	K295T	probably damaging	Het
Prss12	T	C	3: 123,300,121 (GRCm39)	V744A	probably damaging	Het
Pudp	A	T	18: 50,701,612 (GRCm39)	N40K	probably benign	Het
Rab30	T	C	7: 92,478,876 (GRCm39)	I107T	possibly damaging	Het
Ryr3	T	A	2: 112,596,683 (GRCm39)		probably benign	Het
Sh2d1b1	C	A	1: 170,107,350 (GRCm39)		probably null	Het
Tmc5	T	A	7: 118,222,546 (GRCm39)	V82D	probably benign	Het

Other mutations in Cdk5rap2

Allele	Source	Chr	Coord	Type	Predicted Effect	PPH Score
IGL00425:Cdk5rap2	APN	4	70,321,709 (GRCm39)	critical splice donor site	probably null
IGL01305:Cdk5rap2	APN	4	70,298,472 (GRCm39)	missense	possibly damaging	0.52
IGL01987:Cdk5rap2	APN	4	70,220,319 (GRCm39)	critical splice donor site	probably null
IGL02213:Cdk5rap2	APN	4	70,235,839 (GRCm39)	splice site	probably benign
IGL02732:Cdk5rap2	APN	4	70,184,902 (GRCm39)	nonsense	probably null
IGL03063:Cdk5rap2	APN	4	70,273,114 (GRCm39)	critical splice acceptor site	probably null
IGL03244:Cdk5rap2	APN	4	70,199,672 (GRCm39)	missense	probably benign	0.19
ANU22:Cdk5rap2	UTSW	4	70,298,472 (GRCm39)	missense	possibly damaging	0.52
R0010:Cdk5rap2	UTSW	4	70,161,696 (GRCm39)	missense	probably benign	0.01
R0010:Cdk5rap2	UTSW	4	70,161,696 (GRCm39)	missense	probably benign	0.01
R0044:Cdk5rap2	UTSW	4	70,279,138 (GRCm39)	missense	probably damaging	1.00
R0044:Cdk5rap2	UTSW	4	70,279,138 (GRCm39)	missense	probably damaging	1.00
R0482:Cdk5rap2	UTSW	4	70,328,506 (GRCm39)	start gained	probably benign
R0548:Cdk5rap2	UTSW	4	70,267,379 (GRCm39)	critical splice donor site	probably null
R0594:Cdk5rap2	UTSW	4	70,273,050 (GRCm39)	missense	probably damaging	0.98
R0737:Cdk5rap2	UTSW	4	70,255,612 (GRCm39)	missense	probably benign	0.01
R0788:Cdk5rap2	UTSW	4	70,225,468 (GRCm39)	missense	possibly damaging	0.90
R0960:Cdk5rap2	UTSW	4	70,161,745 (GRCm39)	missense	probably benign	0.03
R1682:Cdk5rap2	UTSW	4	70,220,387 (GRCm39)	missense	possibly damaging	0.92
R1727:Cdk5rap2	UTSW	4	70,208,209 (GRCm39)	missense	possibly damaging	0.70
R1727:Cdk5rap2	UTSW	4	70,190,916 (GRCm39)	missense	probably benign
R1768:Cdk5rap2	UTSW	4	70,225,470 (GRCm39)	missense	probably benign	0.09
R1903:Cdk5rap2	UTSW	4	70,321,791 (GRCm39)	splice site	probably null
R2270:Cdk5rap2	UTSW	4	70,184,915 (GRCm39)	missense	probably benign	0.01
R2271:Cdk5rap2	UTSW	4	70,184,915 (GRCm39)	missense	probably benign	0.01
R2272:Cdk5rap2	UTSW	4	70,184,915 (GRCm39)	missense	probably benign	0.01
R2364:Cdk5rap2	UTSW	4	70,279,046 (GRCm39)	critical splice donor site	probably null
R2763:Cdk5rap2	UTSW	4	70,199,508 (GRCm39)	missense	probably benign
R2893:Cdk5rap2	UTSW	4	70,208,110 (GRCm39)	missense	probably benign
R2894:Cdk5rap2	UTSW	4	70,208,110 (GRCm39)	missense	probably benign
R2958:Cdk5rap2	UTSW	4	70,208,214 (GRCm39)	frame shift	probably null
R2959:Cdk5rap2	UTSW	4	70,208,214 (GRCm39)	frame shift	probably null
R2961:Cdk5rap2	UTSW	4	70,208,214 (GRCm39)	frame shift	probably null
R2962:Cdk5rap2	UTSW	4	70,208,214 (GRCm39)	frame shift	probably null
R2963:Cdk5rap2	UTSW	4	70,208,214 (GRCm39)	frame shift	probably null
R3522:Cdk5rap2	UTSW	4	70,168,647 (GRCm39)	missense	probably damaging	1.00
R3725:Cdk5rap2	UTSW	4	70,153,674 (GRCm39)	missense	possibly damaging	0.89
R3726:Cdk5rap2	UTSW	4	70,153,674 (GRCm39)	missense	possibly damaging	0.89
R3876:Cdk5rap2	UTSW	4	70,208,214 (GRCm39)	frame shift	probably null
R3919:Cdk5rap2	UTSW	4	70,298,460 (GRCm39)	missense	possibly damaging	0.50
R4025:Cdk5rap2	UTSW	4	70,168,624 (GRCm39)	missense	probably damaging	0.98
R4324:Cdk5rap2	UTSW	4	70,271,851 (GRCm39)	missense	probably damaging	1.00
R4485:Cdk5rap2	UTSW	4	70,157,520 (GRCm39)	critical splice donor site	probably null
R4516:Cdk5rap2	UTSW	4	70,194,952 (GRCm39)	splice site	probably null
R4556:Cdk5rap2	UTSW	4	70,157,549 (GRCm39)	missense	probably damaging	0.97
R4560:Cdk5rap2	UTSW	4	70,233,568 (GRCm39)	missense	probably benign	0.03
R4584:Cdk5rap2	UTSW	4	70,184,997 (GRCm39)	missense	probably damaging	1.00
R4620:Cdk5rap2	UTSW	4	70,184,943 (GRCm39)	missense	probably benign	0.00
R4639:Cdk5rap2	UTSW	4	70,220,413 (GRCm39)	missense	probably damaging	0.97
R4755:Cdk5rap2	UTSW	4	70,156,662 (GRCm39)	missense	probably damaging	1.00
R4947:Cdk5rap2	UTSW	4	70,146,829 (GRCm39)	splice site	probably null
R5116:Cdk5rap2	UTSW	4	70,225,475 (GRCm39)	missense	possibly damaging	0.67
R5449:Cdk5rap2	UTSW	4	70,194,888 (GRCm39)	missense	probably benign	0.00
R5643:Cdk5rap2	UTSW	4	70,184,970 (GRCm39)	missense	probably damaging	0.99
R5899:Cdk5rap2	UTSW	4	70,161,830 (GRCm39)	splice site	probably benign
R6177:Cdk5rap2	UTSW	4	70,199,719 (GRCm39)	missense	probably damaging	0.99
R6254:Cdk5rap2	UTSW	4	70,282,269 (GRCm39)	missense	probably damaging	1.00
R6326:Cdk5rap2	UTSW	4	70,153,691 (GRCm39)	missense	probably damaging	1.00
R6335:Cdk5rap2	UTSW	4	70,184,849 (GRCm39)	missense	possibly damaging	0.79
R6534:Cdk5rap2	UTSW	4	70,273,050 (GRCm39)	missense	probably damaging	0.98
R6857:Cdk5rap2	UTSW	4	70,163,633 (GRCm39)	nonsense	probably null
R6959:Cdk5rap2	UTSW	4	70,278,906 (GRCm39)	splice site	probably null
R7104:Cdk5rap2	UTSW	4	70,267,393 (GRCm39)	missense	probably benign	0.00
R7145:Cdk5rap2	UTSW	4	70,156,468 (GRCm39)	missense	probably benign	0.13
R7223:Cdk5rap2	UTSW	4	70,153,684 (GRCm39)	missense	probably benign	0.02
R7234:Cdk5rap2	UTSW	4	70,295,024 (GRCm39)	splice site	probably null
R7240:Cdk5rap2	UTSW	4	70,210,145 (GRCm39)	missense	probably damaging	1.00
R7247:Cdk5rap2	UTSW	4	70,255,666 (GRCm39)	missense	probably damaging	1.00
R7382:Cdk5rap2	UTSW	4	70,208,262 (GRCm39)	missense	probably benign	0.19
R7413:Cdk5rap2	UTSW	4	70,172,972 (GRCm39)	missense	probably damaging	1.00
R7576:Cdk5rap2	UTSW	4	70,185,109 (GRCm39)	missense	probably benign	0.01
R8236:Cdk5rap2	UTSW	4	70,160,722 (GRCm39)	missense	probably benign
R8434:Cdk5rap2	UTSW	4	70,282,257 (GRCm39)	missense	probably benign	0.00
R8688:Cdk5rap2	UTSW	4	70,298,510 (GRCm39)	missense	probably damaging	1.00
R8706:Cdk5rap2	UTSW	4	70,157,562 (GRCm39)	missense	probably benign	0.08
R8731:Cdk5rap2	UTSW	4	70,163,747 (GRCm39)	splice site	probably benign
R8782:Cdk5rap2	UTSW	4	70,161,712 (GRCm39)	missense	possibly damaging	0.57
R8855:Cdk5rap2	UTSW	4	70,218,887 (GRCm39)	missense	probably damaging	1.00
R8965:Cdk5rap2	UTSW	4	70,185,042 (GRCm39)	missense	probably benign	0.30
R9242:Cdk5rap2	UTSW	4	70,255,583 (GRCm39)	missense	possibly damaging	0.46
R9308:Cdk5rap2	UTSW	4	70,328,504 (GRCm39)	start codon destroyed	probably null	0.99
R9396:Cdk5rap2	UTSW	4	70,182,895 (GRCm39)	missense	probably damaging	0.97
R9396:Cdk5rap2	UTSW	4	70,172,903 (GRCm39)	missense	possibly damaging	0.75
R9507:Cdk5rap2	UTSW	4	70,210,110 (GRCm39)	missense	probably benign
Z1176:Cdk5rap2	UTSW	4	70,184,980 (GRCm39)	missense	probably damaging	0.99

Nature of Mutation

DNA sequencing using the SOLiD technique identified a T to A transversion at position 2320 of the Cdk5rap2 transcript in exon 20 of 37 exons using Genbank record NM_145990.3. Multiple transcripts of the Cdk5rap2 gene are displayed on Ensembl and Vega. The mutated nucleotide causes a valine to glutamic acid substitution at amino acid 1344 of the encoded protein. The mutation has been confirmed by DNA sequencing using the Sanger method (Figure 1).

Protein Function and Prediction

The Cdk5rap2 gene encodes an 1822 amino acid regulator of CDK5 activity via its interaction with CDK5R1, and is phosphorylated by CDK5. The protein is involved in regulation of mitotic spindle orientation and brain development, and interacts with a number of proteins involved in mitotic spindle orientation (Uniprot Q8K389). In mice, the homozygous mutant phenotype varies by strain background. Severely affected mutants exhibit small size, severe anemia, and neonatal death. Mildly affected mutants are viable with mild macrocytic anemia, reduced fertility and radiation senstitivity. In humans, mutations cause autosomal recessive microcephaly-3 (OMIM 604804).

Posted On

2011-03-09