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GeneBe

rs16835896

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 1P and 10B. PP2BP4_StrongBP6_ModerateBS2

The NM_001388419.1(KALRN):ā€‹c.8918A>Gā€‹(p.Asn2973Ser) variant causes a missense change. The variant allele was found at a frequency of 0.000317 in 1,614,072 control chromosomes in the GnomAD database, including 6 homozygotes. In-silico tool predicts a benign outcome for this variant. 12/15 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (ā˜…).

Frequency

Genomes: š‘“ 0.00041 ( 1 hom., cov: 33)
Exomes š‘“: 0.00031 ( 5 hom. )

Consequence

KALRN
NM_001388419.1 missense

Scores

1
16

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 3.73
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

PP2
Missense variant where missense usually causes diseases, KALRN
BP4
Computational evidence support a benign effect (MetaRNN=0.0054593384).
BP6
Variant 3-124719427-A-G is Benign according to our data. Variant chr3-124719427-A-G is described in ClinVar as [Benign]. Clinvar id is 3033114.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High AC in GnomAd4 at 63 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
KALRNNM_001388419.1 linkuse as main transcriptc.8918A>G p.Asn2973Ser missense_variant 60/60 ENST00000682506.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
KALRNENST00000682506.1 linkuse as main transcriptc.8918A>G p.Asn2973Ser missense_variant 60/60 NM_001388419.1 A2

Frequencies

GnomAD3 genomes
AF:
0.000414
AC:
63
AN:
152176
Hom.:
1
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.0104
Gnomad SAS
AF:
0.00124
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.000981
AC:
245
AN:
249856
Hom.:
3
AF XY:
0.000936
AC XY:
127
AN XY:
135618
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0127
Gnomad SAS exome
AF:
0.000163
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000265
Gnomad OTH exome
AF:
0.000824
GnomAD4 exome
AF:
0.000306
AC:
448
AN:
1461778
Hom.:
5
Cov.:
31
AF XY:
0.000344
AC XY:
250
AN XY:
727196
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.000153
Gnomad4 EAS exome
AF:
0.00889
Gnomad4 SAS exome
AF:
0.000325
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000252
Gnomad4 OTH exome
AF:
0.000563
GnomAD4 genome
AF:
0.000414
AC:
63
AN:
152294
Hom.:
1
Cov.:
33
AF XY:
0.000483
AC XY:
36
AN XY:
74478
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.0104
Gnomad4 SAS
AF:
0.00124
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.000394
Hom.:
0
Bravo
AF:
0.000476
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.00
AC:
0
ExAC
AF:
0.000956
AC:
116
Asia WGS
AF:
0.00491
AC:
17
AN:
3478
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

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 SciencesJun 19, 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
AlphaMissense
Benign
0.15
BayesDel_addAF
Benign
-0.58
T
BayesDel_noAF
Benign
-0.60
CADD
Benign
19
DANN
Benign
0.71
DEOGEN2
Benign
0.016
T;.
Eigen
Benign
-0.38
Eigen_PC
Benign
-0.12
FATHMM_MKL
Uncertain
0.89
D
LIST_S2
Benign
0.86
D;D
MetaRNN
Benign
0.0055
T;T
MetaSVM
Benign
-1.1
T
MutationTaster
Benign
1.0
N;N;N
PrimateAI
Benign
0.40
T
PROVEAN
Benign
-0.80
N;N
REVEL
Benign
0.079
Sift
Benign
0.55
T;T
Sift4G
Benign
0.93
T;T
Vest4
0.043
MVP
0.47
ClinPred
0.024
T
GERP RS
5.3

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: rs16835896; hg19: chr3-124438274; API