22-38481230-A-T

Position:

chr22-38481230-A-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_006855.4(KDELR3):c.370A>T(p.Ile124Phe) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000682 in 1,613,240 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 (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

KDELR3
NM_006855.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.32

Variant links:

Genes affected

KDELR3 (HGNC:6306): (KDEL endoplasmic reticulum protein retention receptor 3) This gene encodes a member of the KDEL endoplasmic reticulum protein retention receptor family. Retention of resident soluble proteins in the lumen of the endoplasmic reticulum (ER) is achieved in both yeast and animal cells by their continual retrieval from the cis-Golgi, or a pre-Golgi compartment. Sorting of these proteins is dependent on a C-terminal tetrapeptide signal, usually lys-asp-glu-leu (KDEL) in animal cells, and his-asp-glu-leu (HDEL) in S. cerevisiae. This process is mediated by a receptor that recognizes, and binds the tetrapeptide-containing protein, and returns it to the ER. In yeast, the sorting receptor encoded by a single gene, ERD2, is a seven-transmembrane protein. Unlike yeast, several human homologs of the ERD2 gene, constituting the KDEL receptor gene family, have been described. KDELR3 was the third member of the family to be identified. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Jul 2013]

KDELR3 links:

KDELR3 (HGNC:):

KDELR3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.829

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
KDELR3	NM_006855.4 linkuse as main transcript	c.370A>T	p.Ile124Phe	missense_variant	4/5	ENST00000216014.9	NP_006846.1	O43731-1A0A024R1R0
KDELR3	NM_016657.3 linkuse as main transcript	c.370A>T	p.Ile124Phe	missense_variant	4/4		NP_057839.1	O43731-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
KDELR3	ENST00000216014.9 linkuse as main transcript	c.370A>T	p.Ile124Phe	missense_variant	4/5	1	NM_006855.4	ENSP00000216014.4	O43731-1
KDELR3	ENST00000409006.3 linkuse as main transcript	c.370A>T	p.Ile124Phe	missense_variant	4/4	1		ENSP00000386918.3	O43731-2
KDELR3	ENST00000471268.1 linkuse as main transcript	n.309A>T		non_coding_transcript_exon_variant	4/5	5

Frequencies

GnomAD3 genomes

AF:

0.0000132

AC:

AN:

151860

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000387

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000319

AC:

AN:

251008

Hom.:

AF XY:

0.0000295

AC XY:

AN XY:

135622

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000435

Gnomad SAS 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:

0.00000616

AC:

AN:

1461264

Hom.:

Cov.:

AF XY:

0.00000550

AC XY:

AN XY:

726940

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000176

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000331

GnomAD4 genome

AF:

0.0000132

AC:

AN:

151976

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74306

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000387

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

ExAC

AF:

0.0000165

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 17, 2023

The c.370A>T (p.I124F) alteration is located in exon 4 (coding exon 4) of the KDELR3 gene. This alteration results from a A to T substitution at nucleotide position 370, causing the isoleucine (I) at amino acid position 124 to be replaced by a phenylalanine (F). 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

0.76

BayesDel_addAF

Uncertain

0.11

BayesDel_noAF

Pathogenic

0.23

CADD

Pathogenic

DANN

Uncertain

0.99

DEOGEN2

Benign

0.14

T;.

Eigen

Pathogenic

0.90

Eigen_PC

Pathogenic

0.81

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Pathogenic

0.99

D;D

M_CAP

Benign

0.033

MetaRNN

Pathogenic

0.83

D;D

MetaSVM

Uncertain

-0.019

MutationAssessor

Pathogenic

4.0

H;H

PrimateAI

Uncertain

0.75

PROVEAN

Uncertain

-3.9

D;D

REVEL

Pathogenic

0.65

Sift

Uncertain

0.0020

D;D

Sift4G

Uncertain

0.0020

D;D

Polyphen

0.99

D;D

Vest4

0.92

MutPred

0.64

Loss of stability (P = 0.1328);Loss of stability (P = 0.1328);

MVP

0.69

MPC

0.65

ClinPred

0.98

GERP RS

5.0

Varity_R

0.74

gMVP

0.89

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.15

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