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GeneBe

3-124438959-G-A

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_ModerateBP6_ModerateBP7BA1

The NM_001388419.1(KALRN):​c.3120G>A​(p.Lys1040=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0139 in 1,614,080 control chromosomes in the GnomAD database, including 305 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.012 ( 29 hom., cov: 31)
Exomes 𝑓: 0.014 ( 276 hom. )

Consequence

KALRN
NM_001388419.1 synonymous

Scores

2

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.661
Variant links:
Genes affected
KALRN (HGNC:4814): (kalirin RhoGEF kinase) Huntington's disease (HD), a neurodegenerative disorder characterized by loss of striatal neurons, is caused by an expansion of a polyglutamine tract in the HD protein huntingtin. This gene encodes a protein that interacts with the huntingtin-associated protein 1, which is a huntingtin binding protein that may function in vesicle trafficking. [provided by RefSeq, Apr 2016]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -13 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.46).
BP6
Variant 3-124438959-G-A is Benign according to our data. Variant chr3-124438959-G-A is described in ClinVar as [Benign]. Clinvar id is 3056205.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
Synonymous conserved (PhyloP=0.661 with no splicing effect.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.0696 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
KALRNNM_001388419.1 linkuse as main transcriptc.3120G>A p.Lys1040= synonymous_variant 18/60 ENST00000682506.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
KALRNENST00000682506.1 linkuse as main transcriptc.3120G>A p.Lys1040= synonymous_variant 18/60 NM_001388419.1 A2

Frequencies

GnomAD3 genomes
AF:
0.0120
AC:
1829
AN:
152146
Hom.:
29
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00258
Gnomad AMI
AF:
0.0110
Gnomad AMR
AF:
0.0140
Gnomad ASJ
AF:
0.0161
Gnomad EAS
AF:
0.0759
Gnomad SAS
AF:
0.00477
Gnomad FIN
AF:
0.0121
Gnomad MID
AF:
0.00633
Gnomad NFE
AF:
0.0127
Gnomad OTH
AF:
0.0144
GnomAD3 exomes
AF:
0.0152
AC:
3829
AN:
251216
Hom.:
73
AF XY:
0.0145
AC XY:
1964
AN XY:
135774
show subpopulations
Gnomad AFR exome
AF:
0.00246
Gnomad AMR exome
AF:
0.00992
Gnomad ASJ exome
AF:
0.0155
Gnomad EAS exome
AF:
0.0778
Gnomad SAS exome
AF:
0.00621
Gnomad FIN exome
AF:
0.0118
Gnomad NFE exome
AF:
0.0117
Gnomad OTH exome
AF:
0.0148
GnomAD4 exome
AF:
0.0142
AC:
20685
AN:
1461816
Hom.:
276
Cov.:
31
AF XY:
0.0140
AC XY:
10164
AN XY:
727208
show subpopulations
Gnomad4 AFR exome
AF:
0.00221
Gnomad4 AMR exome
AF:
0.0113
Gnomad4 ASJ exome
AF:
0.0142
Gnomad4 EAS exome
AF:
0.0828
Gnomad4 SAS exome
AF:
0.00619
Gnomad4 FIN exome
AF:
0.0127
Gnomad4 NFE exome
AF:
0.0128
Gnomad4 OTH exome
AF:
0.0160
GnomAD4 genome
AF:
0.0120
AC:
1831
AN:
152264
Hom.:
29
Cov.:
31
AF XY:
0.0125
AC XY:
929
AN XY:
74434
show subpopulations
Gnomad4 AFR
AF:
0.00258
Gnomad4 AMR
AF:
0.0140
Gnomad4 ASJ
AF:
0.0161
Gnomad4 EAS
AF:
0.0757
Gnomad4 SAS
AF:
0.00477
Gnomad4 FIN
AF:
0.0121
Gnomad4 NFE
AF:
0.0127
Gnomad4 OTH
AF:
0.0161
Alfa
AF:
0.0121
Hom.:
29
Bravo
AF:
0.0126
Asia WGS
AF:
0.0320
AC:
110
AN:
3478
EpiCase
AF:
0.0127
EpiControl
AF:
0.0114

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

KALRN-related disorder Benign:1
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact SciencesDec 27, 2019This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.46
CADD
Benign
4.3
DANN
Benign
0.61

Splicing

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs2289837; hg19: chr3-124157806; API