Genetic Variant KANK1:c.3554-7_3554-5dupTTT (chr9-740769-C-CTTT) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 0P and 0B.

The NM_015158.5(KANK1):c.3554-7_3554-5dupTTT variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000097 ( 0 hom., cov: 0)

Exomes 𝑓: 0.000098 ( 0 hom. )

Consequence

KANK1
NM_015158.5 splice_region, intron

Scores

Not classified

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.110

Publications

0 publications found

Variant links:

Genes affected

KANK1 (HGNC:19309): (KN motif and ankyrin repeat domains 1) The protein encoded by this gene belongs to the Kank family of proteins, which contain multiple ankyrin repeat domains. This family member functions in cytoskeleton formation by regulating actin polymerization. This gene is a candidate tumor suppressor for renal cell carcinoma. Mutations in this gene cause cerebral palsy spastic quadriplegic type 2, a central nervous system development disorder. A t(5;9) translocation results in fusion of the platelet-derived growth factor receptor beta gene (PDGFRB) on chromosome 5 with this gene in a myeloproliferative neoplasm featuring severe thrombocythemia. Alternative splicing of this gene results in multiple transcript variants. A related pseudogene has been identified on chromosome 20. [provided by RefSeq, Dec 2014]

KANK1 Gene-Disease associations (from GenCC):

spastic quadriplegic cerebral palsy
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
cerebral palsy, spastic quadriplegic, 2
Inheritance: Unknown, AD Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae), G2P, Ambry Genetics

KANK1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
KANK1	NM_015158.5 link	c.3554-7_3554-5dupTTT		splice_region_variant, intron_variant	Intron 8 of 11	ENST00000382297.7	NP_055973.2	Q14678-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
KANK1	ENST00000382297.7 link	c.3554-23_3554-22insTTT		intron_variant	Intron 8 of 11	1	NM_015158.5	ENSP00000371734.2		Q14678-1

Frequencies

GnomAD3 genomes

AF:

0.0000967

AC:

AN:

144718

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000277

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000211

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.0000985

AC:

134

AN:

1360858

Hom.:

Cov.:

AF XY:

0.000101

AC XY:

AN XY:

676540

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00117

AC:

AN:

29916

American (AMR)

AF:

0.000386

AC:

AN:

33708

Ashkenazi Jewish (ASJ)

AF:

0.000299

AC:

AN:

23400

East Asian (EAS)

AF:

0.000264

AC:

AN:

37928

South Asian (SAS)

AF:

0.0000780

AC:

AN:

76886

European-Finnish (FIN)

AF:

0.000108

AC:

AN:

46370

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5380

European-Non Finnish (NFE)

AF:

0.0000476

AC:

AN:

1051162

Other (OTH)

AF:

0.000143

AC:

AN:

56108

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.303

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000967

AC:

AN:

144764

Hom.:

Cov.:

AF XY:

0.0000998

AC XY:

AN XY:

70116

show subpopulations

African (AFR)

AF:

0.000277

AC:

AN:

39730

American (AMR)

AF:

0.000210

AC:

AN:

14260

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3310

East Asian (EAS)

AF:

0.00

AC:

AN:

4810

South Asian (SAS)

AF:

0.00

AC:

AN:

4588

European-Finnish (FIN)

AF:

0.00

AC:

AN:

9134

Middle Eastern (MID)

AF:

0.00

AC:

AN:

276

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

65774

Other (OTH)

AF:

0.00

AC:

AN:

2004

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.414

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00

Hom.:

333

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

PhyloP100

0.11

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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9-740769-CTTTTTTTTTTT-CTTTTTTTTTTTTTT

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over