13-33050208-A-G

Position:

• chr13-33050208-A-G

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_004795.4(KL):​c.820-3559A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.665 in 152,094 control chromosomes in the GnomAD database, including 34,162 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.67 (34162 hom., cov: 33)
• Consequence: KL NM_004795.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.292

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]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.93).
• BA1: GnomAd4 highest subpopulation (AMR) allele frequency at 95% confidence interval = 0.752 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
KL	NM_004795.4	c.820-3559A>G		intron_variant		ENST00000380099.4	NP_004786.2
KL	XM_006719895.3	c.-102-3559A>G		intron_variant			XP_006719958.1
KL	XM_047430775.1	c.820-3559A>G		intron_variant			XP_047286731.1
KL	XM_047430776.1	c.820-3559A>G		intron_variant			XP_047286732.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
KL	ENST00000380099.4	c.820-3559A>G		intron_variant		1	NM_004795.4	ENSP00000369442	P1
KL	ENST00000487852.1	n.828-3559A>G		intron_variant, non_coding_transcript_variant		5

Frequencies

GnomAD3 genomes AF: 0.665 AC: 101127 AN: 151974 Hom.: 34122 Cov.: 33

Gnomad AFR AF: 0.551

Gnomad AMI AF: 0.768

Gnomad AMR AF: 0.762

Gnomad ASJ AF: 0.692

Gnomad EAS AF: 0.704

Gnomad SAS AF: 0.660

Gnomad FIN AF: 0.706

Gnomad MID AF: 0.750

Gnomad NFE AF: 0.700

Gnomad OTH AF: 0.693

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.665 AC: 101218 AN: 152094 Hom.: 34162 Cov.: 33 AF XY: 0.667 AC XY: 49606 AN XY: 74344

Gnomad4 AFR AF: 0.552

Gnomad4 AMR AF: 0.763

Gnomad4 ASJ AF: 0.692

Gnomad4 EAS AF: 0.705

Gnomad4 SAS AF: 0.659

Gnomad4 FIN AF: 0.706

Gnomad4 NFE AF: 0.700

Gnomad4 OTH AF: 0.695

Alfa AF: 0.688 Hom.: 6152

Bravo AF: 0.670

Asia WGS AF: 0.691 AC: 2402 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.93
CADD	Benign	3.1
DANN	Benign	0.68

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

Other links and lift over

dbSNP: rs684492; hg19: chr13-33624345;