rs11542682

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_194454.3(KRIT1):​c.1980A>G​(p.Val660Val) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.102 in 1,612,268 control chromosomes in the GnomAD database, including 10,372 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.11 ( 1131 hom., cov: 32)
Exomes 𝑓: 0.10 ( 9241 hom. )

Consequence

KRIT1
NM_194454.3 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:10

Conservation

PhyloP100: -0.0620

Publications

34 publications found
Variant links:
Genes affected
KRIT1 (HGNC:1573): (KRIT1 ankyrin repeat containing) This gene encodes a protein containing four ankyrin repeats, a band 4.1/ezrin/radixin/moesin (FERM) domain, and multiple NPXY sequences. The encoded protein is localized in the nucleus and cytoplasm. It binds to integrin cytoplasmic domain-associated protein-1 alpha (ICAP1alpha), and plays a critical role in beta1-integrin-mediated cell proliferation. It associates with junction proteins and RAS-related protein 1A (Rap1A), which requires the encoded protein for maintaining the integrity of endothelial junctions. It is also a microtubule-associated protein and may play a role in microtubule targeting. Mutations in this gene result in cerebral cavernous malformations. Multiple alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Sep 2009]
KRIT1 Gene-Disease associations (from GenCC):
  • cerebral cavernous malformation 1
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: G2P, Genomics England PanelApp, Ambry Genetics, Labcorp Genetics (formerly Invitae)
  • famililal cerebral cavernous malformations
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.53).
BP6
Variant 7-92213240-T-C is Benign according to our data. Variant chr7-92213240-T-C is described in ClinVar as [Benign]. Clinvar id is 263098.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-0.062 with no splicing effect.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.342 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
KRIT1NM_194454.3 linkc.1980A>G p.Val660Val synonymous_variant Exon 17 of 19 ENST00000394505.7 NP_919436.1 O00522-1A4D1F7

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
KRIT1ENST00000394505.7 linkc.1980A>G p.Val660Val synonymous_variant Exon 17 of 19 1 NM_194454.3 ENSP00000378013.2 O00522-1
ENSG00000289027ENST00000692281.1 linkc.1980A>G p.Val660Val synonymous_variant Exon 17 of 26 ENSP00000510568.1 A0A8I5KWQ7
ENSG00000285953ENST00000458493.6 linkc.1980A>G p.Val660Val synonymous_variant Exon 16 of 20 4 ENSP00000396352.2 C9JD81

Frequencies

GnomAD3 genomes
AF:
0.114
AC:
17294
AN:
152010
Hom.:
1128
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.127
Gnomad AMI
AF:
0.141
Gnomad AMR
AF:
0.100
Gnomad ASJ
AF:
0.101
Gnomad EAS
AF:
0.355
Gnomad SAS
AF:
0.170
Gnomad FIN
AF:
0.0872
Gnomad MID
AF:
0.0981
Gnomad NFE
AF:
0.0910
Gnomad OTH
AF:
0.112
GnomAD2 exomes
AF:
0.127
AC:
31785
AN:
250970
AF XY:
0.127
show subpopulations
Gnomad AFR exome
AF:
0.129
Gnomad AMR exome
AF:
0.106
Gnomad ASJ exome
AF:
0.0998
Gnomad EAS exome
AF:
0.364
Gnomad FIN exome
AF:
0.0844
Gnomad NFE exome
AF:
0.0947
Gnomad OTH exome
AF:
0.109
GnomAD4 exome
AF:
0.101
AC:
146928
AN:
1460140
Hom.:
9241
Cov.:
31
AF XY:
0.103
AC XY:
74705
AN XY:
726432
show subpopulations
African (AFR)
AF:
0.126
AC:
4218
AN:
33436
American (AMR)
AF:
0.107
AC:
4792
AN:
44718
Ashkenazi Jewish (ASJ)
AF:
0.101
AC:
2646
AN:
26120
East Asian (EAS)
AF:
0.345
AC:
13674
AN:
39630
South Asian (SAS)
AF:
0.163
AC:
14015
AN:
86192
European-Finnish (FIN)
AF:
0.0866
AC:
4620
AN:
53358
Middle Eastern (MID)
AF:
0.110
AC:
636
AN:
5764
European-Non Finnish (NFE)
AF:
0.0862
AC:
95686
AN:
1110608
Other (OTH)
AF:
0.110
AC:
6641
AN:
60314
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.471
Heterozygous variant carriers
0
6293
12587
18880
25174
31467
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
3644
7288
10932
14576
18220
<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:
0.114
AC:
17304
AN:
152128
Hom.:
1131
Cov.:
32
AF XY:
0.117
AC XY:
8682
AN XY:
74370
show subpopulations
African (AFR)
AF:
0.127
AC:
5267
AN:
41486
American (AMR)
AF:
0.0999
AC:
1526
AN:
15274
Ashkenazi Jewish (ASJ)
AF:
0.101
AC:
352
AN:
3468
East Asian (EAS)
AF:
0.356
AC:
1839
AN:
5172
South Asian (SAS)
AF:
0.170
AC:
819
AN:
4826
European-Finnish (FIN)
AF:
0.0872
AC:
923
AN:
10590
Middle Eastern (MID)
AF:
0.0986
AC:
29
AN:
294
European-Non Finnish (NFE)
AF:
0.0909
AC:
6184
AN:
67994
Other (OTH)
AF:
0.112
AC:
236
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.501
Heterozygous variant carriers
0
744
1488
2231
2975
3719
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
206
412
618
824
1030
<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:
0.101
Hom.:
1298
Bravo
AF:
0.117
Asia WGS
AF:
0.211
AC:
734
AN:
3478
EpiCase
AF:
0.0955
EpiControl
AF:
0.0954

ClinVar

Significance: Benign
Submissions summary: Benign:10
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:4
Nov 29, 2023
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Mar 03, 2015
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant is associated with the following publications: (PMID: 23485406, 20419355) -

Nov 24, 2017
Athena Diagnostics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Cerebral cavernous malformation Benign:3
Mar 22, 2016
Genome Diagnostics Laboratory, University Medical Center Utrecht
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Apr 27, 2017
Illumina Laboratory Services, Illumina
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). Publications were found based on this search. The evidence from the literature, in combination with allele frequency data from public databases where available, was sufficient to rule this variant out of causing disease. Therefore, this variant is classified as benign. -

Feb 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not specified Benign:2
Apr 03, 2018
PreventionGenetics, part of Exact Sciences
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
Clinical Genetics, Academic Medical Center
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Angiokeratoma corporis diffusum with arteriovenous fistulas Benign:1
Apr 27, 2017
Illumina Laboratory Services, Illumina
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases was too high to be consistent with this variant causing disease. Therefore, this variant is classified as benign. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.53
CADD
Benign
5.5
DANN
Benign
0.62
PhyloP100
-0.062
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Mutation Taster
=92/8
polymorphism (auto)

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

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

Publications

Other links and lift over

dbSNP: rs11542682; hg19: chr7-91842554; COSMIC: COSV60666621; API