4-20734705-G-A

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 1P and 4B. PP3BS2

The NM_025221.6(KCNIP4):​c.460C>T​(p.Arg154Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000151 in 1,586,300 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

KCNIP4
NM_025221.6 missense

Scores

14
3
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.81
Variant links:
Genes affected
KCNIP4 (HGNC:30083): (potassium voltage-gated channel interacting protein 4) This gene encodes a member of the family of voltage-gated potassium (Kv) channel-interacting proteins (KCNIPs), which belong to the recoverin branch of the EF-hand superfamily. Members of the KCNIP family are small calcium binding proteins. They all have EF-hand-like domains, and differ from each other in the N-terminus. They are integral subunit components of native Kv4 channel complexes. They may regulate A-type currents, and hence neuronal excitability, in response to changes in intracellular calcium. This protein member also interacts with presenilin. Multiple alternatively spliced transcript variants encoding distinct isoforms have been identified for this gene. [provided by RefSeq, Jul 2008]
PACRGL (HGNC:28442): (parkin coregulated like)

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.825
BS2
High AC in GnomAdExome4 at 23 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
KCNIP4NM_025221.6 linkuse as main transcriptc.460C>T p.Arg154Trp missense_variant 6/9 ENST00000382152.7 NP_079497.2 Q6PIL6-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
KCNIP4ENST00000382152.7 linkuse as main transcriptc.460C>T p.Arg154Trp missense_variant 6/95 NM_025221.6 ENSP00000371587.2 Q6PIL6-1

Frequencies

GnomAD3 genomes
AF:
0.00000660
AC:
1
AN:
151614
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.0000956
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000172
AC:
4
AN:
231928
Hom.:
0
AF XY:
0.0000159
AC XY:
2
AN XY:
125400
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000371
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000160
AC:
23
AN:
1434686
Hom.:
0
Cov.:
26
AF XY:
0.0000182
AC XY:
13
AN XY:
713686
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.0000189
Gnomad4 NFE exome
AF:
0.0000182
Gnomad4 OTH exome
AF:
0.0000169
GnomAD4 genome
AF:
0.00000660
AC:
1
AN:
151614
Hom.:
0
Cov.:
33
AF XY:
0.0000135
AC XY:
1
AN XY:
73966
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.0000956
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000508
Hom.:
0
ExAC
AF:
0.0000247
AC:
3

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsSep 05, 2024The c.460C>T (p.R154W) alteration is located in exon 5 (coding exon 5) of the KCNIP4 gene. This alteration results from a C to T substitution at nucleotide position 460, causing the arginine (R) at amino acid position 154 to be replaced by a tryptophan (W). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.93
BayesDel_addAF
Pathogenic
0.27
D
BayesDel_noAF
Pathogenic
0.26
CADD
Pathogenic
33
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.38
.;.;.;.;T;.;T
Eigen
Pathogenic
0.94
Eigen_PC
Pathogenic
0.85
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Pathogenic
1.0
D;D;D;D;D;.;D
M_CAP
Uncertain
0.19
D
MetaRNN
Pathogenic
0.82
D;D;D;D;D;D;D
MetaSVM
Uncertain
0.61
D
MutationAssessor
Pathogenic
4.0
.;.;.;.;H;.;.
PrimateAI
Pathogenic
0.86
D
PROVEAN
Pathogenic
-7.1
D;D;D;D;D;D;.
REVEL
Uncertain
0.62
Sift
Pathogenic
0.0
D;D;D;D;D;D;.
Sift4G
Pathogenic
0.0
D;D;D;D;D;D;.
Polyphen
1.0
.;.;.;.;D;.;D
Vest4
0.88
MutPred
0.60
.;.;.;.;Gain of catalytic residue at L152 (P = 0.0071);.;.;
MVP
0.85
MPC
1.5
ClinPred
1.0
D
GERP RS
5.9
Varity_R
0.78
gMVP
0.86

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

LitVar

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

Other links and lift over

dbSNP: rs763059311; hg19: chr4-20736328; COSMIC: COSV100749762; API