6-31710163-C-A

Variant names:

• chr6-31710163-C-A
• rs371980155
• NM_001003693.3:c.784C>A

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001003693.3(LY6G6F):​c.784C>A​(p.Arg262Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000186 in 1,612,190 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R262H) has been classified as Likely benign.

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 31)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: LY6G6F NM_001003693.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.694
• Publications: 0 publications found

Genes affected

LY6G6F (HGNC:13933): (lymphocyte antigen 6 family member G6F) The human G6f protein is a type I transmembrane protein belonging to the immunoglobin (Ig) superfamily, which is comprised of cell-surface proteins involved in the immune system and cellular recognition (de Vet et al., 2003 [PubMed 12852788]).[supplied by OMIM, Mar 2008]

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]

ENSG00000204422 (HGNC:):

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.099733084).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001003693.3. 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
	LY6G6F	NM_001003693.3	MANE Select	c.784C>A	p.Arg262Ser	missense	Exon 4 of 6	NP_001003693.1	Q5SQ64-1
	LY6G6F-LY6G6D	NM_001353334.2		c.784C>A	p.Arg262Ser	missense	Exon 4 of 6	NP_001340263.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	LY6G6F	ENST00000375832.5	TSL:1 MANE Select	c.784C>A	p.Arg262Ser	missense	Exon 4 of 6	ENSP00000364992.5	Q5SQ64-1
	LY6G6F-LY6G6D	ENST00000503322.1	TSL:1	c.784C>A	p.Arg262Ser	missense	Exon 4 of 6	ENSP00000421232.1
	ENSG00000204422	ENST00000461287.1	TSL:2	n.537+1854G>T		intron	N/A

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152102 Hom.: 0 Cov.: 31

Gnomad AFR AF: 0.0000241

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: 0.00

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1460088 Hom.: 0 Cov.: 32 AF XY: 0.00000275 AC XY: 2 AN XY: 726304

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.00 AC: 0 AN: 33474

American (AMR) AF: 0.00 AC: 0 AN: 44678

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26088

East Asian (EAS) AF: 0.00 AC: 0 AN: 39694

South Asian (SAS) AF: 0.0000232 AC: 2 AN: 86218

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52294

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5762

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111540

Other (OTH) AF: 0.00 AC: 0 AN: 60340

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.00000000770867), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152102 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 74306

African (AFR) AF: 0.0000241 AC: 1 AN: 41418

American (AMR) AF: 0.00 AC: 0 AN: 15270

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5176

South Asian (SAS) AF: 0.00 AC: 0 AN: 4830

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10600

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68018

Other (OTH) AF: 0.00 AC: 0 AN: 2090

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.16
BayesDel_addAF	Benign	-0.26	T
BayesDel_noAF	Benign	-0.60
CADD	Benign	13
DANN	Benign	0.86
DEOGEN2	Benign	0.0061	T
Eigen	Benign	-1.0
Eigen_PC	Benign	-0.98
FATHMM_MKL	Benign	0.049	N
LIST_S2	Benign	0.67	T
M_CAP	Benign	0.0097	T
MetaRNN	Benign	0.10	T
MetaSVM	Benign	-0.99	T
MutationAssessor	Benign	1.5	L
PhyloP100		0.69
PrimateAI	Benign	0.18	T
PROVEAN	Benign	-1.8	N
REVEL	Benign	0.014
Sift	Benign	0.033	D
Sift4G	Uncertain	0.035	D
Polyphen		0.020	B
Vest4		0.28
MutPred		0.32		Gain of glycosylation at R262 (P = 0.0122)
MVP		0.19
MPC		0.082
ClinPred		0.22	T
GERP RS		2.4
Varity_R		0.078
gMVP		0.16
Mutation Taster		=93/7	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.080		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs371980155; hg19: chr6-31677940; COSMIC: COSV65442774; COSMIC: COSV65442774;