dbSNP rs649964: KL:p.Asn873Lys (chr13-33061698-T-A) – ACMG Classification: Likely_pathogenic (6 pts)

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_004795.4(KL):c.2619T>A(p.Asn873Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. N873N) has been classified as Benign.

Frequency

Genomes: not found (cov: 31)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

KL
NM_004795.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.231

Publications

19 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: AR, Unknown Classification: LIMITED Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae), Ambry Genetics

KL links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.987

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
KL	NM_004795.4 link	c.2619T>A	p.Asn873Lys	missense_variant	Exon 4 of 5	ENST00000380099.4	NP_004786.2	Q9UEF7-1
KL	XM_006719895.3 link	c.1698T>A	p.Asn566Lys	missense_variant	Exon 4 of 5		XP_006719958.1
KL	XM_047430776.1 link	c.*1019T>A		downstream_gene_variant			XP_047286732.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
KL	ENST00000380099.4 link	c.2619T>A	p.Asn873Lys	missense_variant	Exon 4 of 5	1	NM_004795.4	ENSP00000369442.3		Q9UEF7-1
KL	ENST00000487852.1 link	n.2677T>A		non_coding_transcript_exon_variant	Exon 4 of 5	5

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000796

AC:

AN:

251402

AF XY:

0.0000147

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000176

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.00000205

AC:

AN:

1461738

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

727148

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:

39694

South Asian (SAS)

AF:

0.00

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53416

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000270

AC:

AN:

1111874

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

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

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.97

BayesDel_addAF

Benign

-0.060

BayesDel_noAF

Benign

-0.31

CADD

Benign

(source)

DANN

Uncertain

0.98

DEOGEN2

Uncertain

0.44

Eigen

Benign

-0.24

Eigen_PC

Benign

-0.55

FATHMM_MKL

Benign

0.62

LIST_S2

Benign

0.81

M_CAP

Benign

0.030

MetaRNN

Pathogenic

0.99

MetaSVM

Uncertain

0.24

MutationAssessor

Pathogenic

4.6

PhyloP100

-0.23

PrimateAI

Uncertain

0.50

PROVEAN

Pathogenic

-4.4

REVEL

Uncertain

0.41

Sift

Uncertain

0.0020

Sift4G

Uncertain

0.0050

Polyphen

1.0

Vest4

0.89

MutPred

0.78

Gain of catalytic residue at N873 (P = 0);

MVP

0.80

MPC

0.60

ClinPred

1.0

GERP RS

-4.1

Varity_R

0.98

gMVP

0.98

Mutation Taster

=15/85

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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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over