Genetic Variant NM_004795.4:c.126G>A (chr13-33016566-G-A) – 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_004795.4(KL):c.126G>A(p.Trp42*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000166 in 1,324,676 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: not found (cov: 31)

Exomes 𝑓: 0.000017 ( 0 hom. )

Consequence

KL
NM_004795.4 stop_gained

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.86

Publications

0 publications found

Variant links:

Genes affected

KL (HGNC:6344): (klotho) This gene encodes a type-I membrane protein that is related to beta-glucosidases. Reduced production of this protein has been observed in patients with chronic renal failure (CRF), and this may be one of the factors underlying the degenerative processes (e.g., arteriosclerosis, osteoporosis, and skin atrophy) seen in CRF. Also, mutations within this protein have been associated with ageing and bone loss. [provided by RefSeq, Jul 2008]

KL Gene-Disease associations (from GenCC):

tumoral calcinosis, hyperphosphatemic, familial, 1
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
tumoral calcinosis, hyperphosphatemic, familial, 3
Inheritance: Unknown, AR Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, Genomics England PanelApp

KL links:

LOC124903151 (HGNC:):

LOC124903151 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;

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004795.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	KL	NM_004795.4	MANE Select	c.126G>A	p.Trp42*	stop_gained	Exon 1 of 5	NP_004786.2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	KL	ENST00000380099.4	TSL:1 MANE Select	c.126G>A	p.Trp42*	stop_gained	Exon 1 of 5	ENSP00000369442.3	Q9UEF7-1
	KL	ENST00000487852.1	TSL:5	n.134G>A		non_coding_transcript_exon	Exon 1 of 5

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00

AC:

AN:

80170

AF XY:

0.00

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000166

AC:

AN:

1324676

Hom.:

Cov.:

AF XY:

0.0000247

AC XY:

AN XY:

648080

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

27646

American (AMR)

AF:

0.00

AC:

AN:

25828

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

20762

East Asian (EAS)

AF:

0.00

AC:

AN:

33232

South Asian (SAS)

AF:

0.0000146

AC:

AN:

68418

European-Finnish (FIN)

AF:

0.00

AC:

AN:

40640

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4540

European-Non Finnish (NFE)

AF:

0.0000191

AC:

AN:

1048804

Other (OTH)

AF:

0.0000182

AC:

AN:

54806

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.511

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Pathogenic

0.51

BayesDel_noAF

Pathogenic

0.50

CADD

Pathogenic

(source)

DANN

Uncertain

0.99

Eigen

Uncertain

0.40

Eigen_PC

Benign

0.16

FATHMM_MKL

Uncertain

0.76

PhyloP100

2.9

Vest4

0.63

GERP RS

1.6

PromoterAI

-0.088

Neutral

(source)

Mutation Taster

=6/194

disease causing (fs/PTC)

(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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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over