rs182019900

Positions:

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_007059.4(KPTN):c.631G>C(p.Gly211Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00145 in 1,549,276 control chromosomes in the GnomAD database, including 24 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0077 ( 10 hom., cov: 30)

Exomes 𝑓: 0.00078 ( 14 hom. )

Consequence

KPTN
NM_007059.4 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 3.01

Variant links:

Genes affected

KPTN (HGNC:6404): (kaptin, actin binding protein) This gene encodes a filamentous-actin-associated protein, which is involved in actin dynamics and plays an important role in neuromorphogenesis. This protein is part of the KICSTOR protein complex that localizes to lysosomes. Mutations in this gene result in an autosomal recessive form of intellectual disability. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Jul 2017]

KPTN links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0056676865).

BP6

Variant 19-47480376-C-G is Benign according to our data. Variant chr19-47480376-C-G is described in ClinVar as [Likely_benign]. Clinvar id is 435678.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0077 (1165/151204) while in subpopulation AFR AF= 0.027 (1109/41100). AF 95% confidence interval is 0.0257. There are 10 homozygotes in gnomad4. There are 539 alleles in male gnomad4 subpopulation. Median coverage is 30. This position pass quality control queck.

BS2

High Homozygotes in GnomAd4 at 10 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
KPTN	NM_007059.4 linkuse as main transcript	c.631G>C	p.Gly211Arg	missense_variant	7/12	ENST00000338134.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
KPTN	ENST00000338134.8 linkuse as main transcript	c.631G>C	p.Gly211Arg	missense_variant	7/12	1	NM_007059.4	P1	Q9Y664-1
KPTN	ENST00000595554.1 linkuse as main transcript	c.463G>C	p.Gly155Arg	missense_variant	5/8	3
KPTN	ENST00000600271.5 linkuse as main transcript	c.-90G>C		5_prime_UTR_variant	8/10	5
KPTN	ENST00000594208.5 linkuse as main transcript	c.*265G>C		3_prime_UTR_variant, NMD_transcript_variant	8/13	2

Frequencies

GnomAD3 genomes

AF:

0.00770

AC:

1164

AN:

151086

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0270

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00257

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000210

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000885

Gnomad OTH

AF:

0.00483

GnomAD3 exomes

AF:

0.00174

AC:

265

AN:

152372

Hom.:

AF XY:

0.00130

AC XY:

105

AN XY:

80900

show subpopulations

Gnomad AFR exome

AF:

0.0271

Gnomad AMR exome

AF:

0.00183

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000442

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000854

Gnomad OTH exome

AF:

0.000234

GnomAD4 exome

AF:

0.000777

AC:

1087

AN:

1398072

Hom.:

Cov.:

AF XY:

0.000669

AC XY:

461

AN XY:

689544

show subpopulations

Gnomad4 AFR exome

AF:

0.0277

Gnomad4 AMR exome

AF:

0.00157

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000379

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000491

Gnomad4 OTH exome

AF:

0.00167

GnomAD4 genome

AF:

0.00770

AC:

1165

AN:

151204

Hom.:

Cov.:

AF XY:

0.00730

AC XY:

539

AN XY:

73866

show subpopulations

Gnomad4 AFR

AF:

0.0270

Gnomad4 AMR

AF:

0.00257

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000210

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000885

Gnomad4 OTH

AF:

0.00478

Alfa

AF:

0.00246

Hom.:

Bravo

AF:

0.00859

ESP6500AA

AF:

0.0177

AC:

ESP6500EA

AF:

0.000278

AC:

ExAC

AF:

0.00143

AC:

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:1

Benign, criteria provided, single submitter

clinical testing

Genetic Services Laboratory, University of Chicago

Aug 08, 2016

- -

Macrocephaly-developmental delay syndrome

Benign:1

Benign, criteria provided, single submitter

clinical testing

Invitae

Jan 08, 2024

- -

not provided

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics

Aug 24, 2017

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.18

BayesDel_addAF

Benign

-0.39

BayesDel_noAF

Benign

-0.32

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.061

T;T

Eigen

Uncertain

0.39

Eigen_PC

Uncertain

0.31

FATHMM_MKL

Benign

0.56

LIST_S2

Benign

0.69

T;T

MetaRNN

Benign

0.0057

T;T

MetaSVM

Benign

-0.69

MutationAssessor

Uncertain

2.6

M;.

MutationTaster

Benign

0.82

D;D

PrimateAI

Uncertain

0.62

PROVEAN

Benign

-1.5

N;.

REVEL

Benign

0.13

Sift

Uncertain

0.020

D;.

Sift4G

Uncertain

0.013

D;.

Polyphen

1.0

D;.

Vest4

0.40

MVP

0.64

MPC

1.3

ClinPred

0.013

GERP RS

3.3

Varity_R

0.096

gMVP

0.48

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.11

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over