6-31715508-G-A

Variant names:

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_021246.4(LY6G6D):c.62G>A(p.Arg21Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000434 in 1,612,592 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)

Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

LY6G6D
NM_021246.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.251

Variant links:

Genes affected

LY6G6D (HGNC:13935): (lymphocyte antigen 6 family member G6D) LY6G6D belongs to a cluster of leukocyte antigen-6 (LY6) genes located in the major histocompatibility complex (MHC) class III region on chromosome 6. Members of the LY6 superfamily typically contain 70 to 80 amino acids, including 8 to 10 cysteines. Most LY6 proteins are attached to the cell surface by a glycosylphosphatidylinositol (GPI) anchor that is directly involved in signal transduction (Mallya et al., 2002 [PubMed 12079290]).[supplied by OMIM, Apr 2009]

LY6G6D links:

LY6G6F-LY6G6D (HGNC:38821): (LY6G6F-LY6G6D readthrough) This locus represents naturally occurring readthrough transcription between the neighboring LY6G6F (lymphocyte antigen 6 family member G6F) and LY6G6D (lymphocyte antigen 6 family member G6D) genes on chromosome 6. The readthrough transcript encodes a fusion protein that shares sequence identity with each individual gene product. [provided by RefSeq, Jul 2017]

LY6G6F-LY6G6D links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.07251805).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LY6G6D	NM_021246.4 link	c.62G>A	p.Arg21Gln	missense_variant	Exon 2 of 3	ENST00000375825.8	NP_067069.2
LY6G6F-LY6G6D	NM_001353334.2 link	c.809G>A	p.Arg270Gln	missense_variant	Exon 5 of 6		NP_001340263.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
LY6G6D	ENST00000375825.8 link	c.62G>A	p.Arg21Gln	missense_variant	Exon 2 of 3	1	NM_021246.4	ENSP00000364985.3	O95868
LY6G6F-LY6G6D	ENST00000503322.1 link	c.809G>A	p.Arg270Gln	missense_variant	Exon 5 of 6	1		ENSP00000421232.1
LY6G6D	ENST00000375824.1 link	c.62G>A	p.Arg21Gln	missense_variant	Exon 2 of 3	1		ENSP00000364984.1	F6XWZ1
LY6G6D	ENST00000479334.1 link	n.153G>A		non_coding_transcript_exon_variant	Exon 1 of 2	1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152122

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:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.000479

GnomAD3 exomes

AF:

0.00000406

AC:

AN:

246470

Hom.:

AF XY:

0.00

AC XY:

AN XY:

134312

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.000100

Gnomad EAS exome

AF:

0.00

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:

0.00000411

AC:

AN:

1460470

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

726494

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.0000765

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

8.99e-7

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152122

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74298

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.000479

Bravo

AF:

0.0000113

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Feb 06, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.62G>A (p.R21Q) alteration is located in exon 2 (coding exon 2) of the LY6G6D gene. This alteration results from a G to A substitution at nucleotide position 62, causing the arginine (R) at amino acid position 21 to be replaced by a glutamine (Q). 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

Benign

0.10

BayesDel_addAF

Benign

-0.15

BayesDel_noAF

Benign

-0.46

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.071

.;T;.

Eigen

Benign

-0.70

Eigen_PC

Benign

-0.72

FATHMM_MKL

Benign

0.020

M_CAP

Benign

0.019

MetaRNN

Benign

0.073

T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.55

.;N;.

PROVEAN

Benign

-1.6

N;D;D

REVEL

Benign

0.062

Sift

Benign

0.30

T;T;D

Sift4G

Uncertain

0.057

T;D;D

Polyphen

0.086

.;B;.

Vest4

0.15

MutPred

0.28

.;Gain of catalytic residue at R21 (P = 0.0927);Gain of catalytic residue at R21 (P = 0.0927);

MVP

0.28

MPC

0.17

ClinPred

0.064

GERP RS

0.94

Varity_R

0.029

gMVP

0.29

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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