Genetic Variant KIAA1958:p.Ala55Ser (chr9-112574243-G-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_133465.4(KIAA1958):c.163G>T(p.Ala55Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000205 in 1,461,806 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

KIAA1958
NM_133465.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.57

Publications

0 publications found

Variant links:

Genes affected

KIAA1958 (HGNC:23427): (KIAA1958)

KIAA1958 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
KIAA1958	NM_133465.4 link	c.163G>T	p.Ala55Ser	missense_variant	Exon 2 of 4	ENST00000337530.11	NP_597722.1	Q8N8K9-1
KIAA1958	NM_001287036.2 link	c.163G>T	p.Ala55Ser	missense_variant	Exon 2 of 5		NP_001273965.1	Q8N8K9-3
KIAA1958	NM_001287038.2 link	c.163G>T	p.Ala55Ser	missense_variant	Exon 2 of 4		NP_001273967.1	Q8N8K9
KIAA1958	XM_011518311.3 link	c.163G>T	p.Ala55Ser	missense_variant	Exon 2 of 3		XP_011516613.1	Q8N8K9-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
KIAA1958	ENST00000337530.11 link	c.163G>T	p.Ala55Ser	missense_variant	Exon 2 of 4	1	NM_133465.4	ENSP00000336940.6	Q8N8K9-1
KIAA1958	ENST00000536272.5 link	c.163G>T	p.Ala55Ser	missense_variant	Exon 2 of 5	1		ENSP00000440504.1	Q8N8K9-3
KIAA1958	ENST00000374244.3 link	c.163G>T	p.Ala55Ser	missense_variant	Exon 2 of 3	5		ENSP00000363362.3	Q8N8K9-2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000205

AC:

AN:

1461806

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

727200

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33476

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39698

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86252

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53412

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000180

AC:

AN:

1111946

Other (OTH)

AF:

0.00

AC:

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Nov 01, 2022

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.163G>T (p.A55S) alteration is located in exon 2 (coding exon 1) of the KIAA1958 gene. This alteration results from a G to T substitution at nucleotide position 163, causing the alanine (A) at amino acid position 55 to be replaced by a serine (S). 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

0.73

BayesDel_addAF

Uncertain

0.015

BayesDel_noAF

Benign

-0.22

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.068

T;.;.

Eigen

Uncertain

0.56

Eigen_PC

Uncertain

0.64

FATHMM_MKL

Uncertain

0.95

LIST_S2

Uncertain

0.86

D;D;D

M_CAP

Benign

0.0045

MetaRNN

Uncertain

0.44

T;T;T

MetaSVM

Benign

-0.79

MutationAssessor

Benign

0.90

L;L;L

PhyloP100

6.6

PrimateAI

Uncertain

0.75

PROVEAN

Benign

-0.070

N;N;N

REVEL

Benign

0.27

Sift

Uncertain

0.0080

D;D;D

Sift4G

Pathogenic

0.0

D;D;D

Polyphen

1.0

D;.;.

Vest4

0.52

MutPred

0.34

Gain of relative solvent accessibility (P = 0.0215);Gain of relative solvent accessibility (P = 0.0215);Gain of relative solvent accessibility (P = 0.0215);

MVP

0.53

MPC

0.78

ClinPred

0.71

GERP RS

6.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.13

gMVP

0.29

Mutation Taster

=41/59

disease causing

(source)

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

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chr9-112574243-G-T

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over