17-7101685-C-T

Variant names:

• chr17-7101685-C-T
• rs138243650
• NM_001201352.2:c.811G>A

Variant summary

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

The NM_001201352.2(ASGR2):​c.811G>A​(p.Glu271Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000155 in 1,614,122 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. E271Q) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.000013 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000016 (0 hom.)
• Consequence: ASGR2 NM_001201352.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.57
• Publications: 1 publications found

Genes affected

ASGR2 (HGNC:743): (asialoglycoprotein receptor 2) This gene encodes a subunit of the asialoglycoprotein receptor. This receptor is a transmembrane protein that plays a critical role in serum glycoprotein homeostasis by mediating the endocytosis and lysosomal degradation of glycoproteins with exposed terminal galactose or N-acetylgalactosamine residues. The asialoglycoprotein receptor may facilitate hepatic infection by multiple viruses including hepatitis B, and is also a target for liver-specific drug delivery. The asialoglycoprotein receptor is a hetero-oligomeric protein composed of major and minor subunits, which are encoded by different genes. The protein encoded by this gene is the less abundant minor subunit. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Jan 2011]

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001201352.2. 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
	ASGR2	NM_001201352.2	MANE Select	c.811G>A	p.Glu271Lys	missense	Exon 9 of 9	NP_001188281.1	Q7Z4G9
	ASGR2	NM_001181.4		c.826G>A	p.Glu276Lys	missense	Exon 9 of 9	NP_001172.1	P07307
	ASGR2	NM_080912.3		c.826G>A	p.Glu276Lys	missense	Exon 9 of 9	NP_550434.1	P07307

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ASGR2	ENST00000691900.1	MANE Select	c.811G>A	p.Glu271Lys	missense	Exon 9 of 9	ENSP00000510808.1	Q7Z4G9
	ASGR2	ENST00000355035.9	TSL:1	c.826G>A	p.Glu276Lys	missense	Exon 9 of 9	ENSP00000347140.5	P07307-1
	ASGR2	ENST00000446679.6	TSL:1	c.769G>A	p.Glu257Lys	missense	Exon 8 of 8	ENSP00000405844.2	P07307-2

Frequencies

GnomAD3 genomes AF: 0.0000131 AC: 2 AN: 152252 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.000576

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

GnomAD2 exomes AF: 0.0000199 AC: 5 AN: 251454 AF XY: 0.0000221

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.000397

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00000879

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000157 AC: 23 AN: 1461870 Hom.: 0 Cov.: 31 AF XY: 0.0000165 AC XY: 12 AN XY: 727240

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.000650 AC: 17 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39698

South Asian (SAS) AF: 0.00 AC: 0 AN: 86252

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53406

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00000180 AC: 2 AN: 1112012

Other (OTH) AF: 0.0000662 AC: 4 AN: 60394

GnomAD4 genome AF: 0.0000131 AC: 2 AN: 152252 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 74380

African (AFR) AF: 0.00 AC: 0 AN: 41472

American (AMR) AF: 0.00 AC: 0 AN: 15286

Ashkenazi Jewish (ASJ) AF: 0.000576 AC: 2 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5196

South Asian (SAS) AF: 0.00 AC: 0 AN: 4836

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10626

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

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68042

Other (OTH) AF: 0.00 AC: 0 AN: 2094

Alfa AF: 0.0000339 Hom.: 0

Bravo AF: 0.0000113

ExAC AF: 0.00000824 AC: 1

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.38
BayesDel_addAF	Uncertain	0.022	T
BayesDel_noAF	Benign	-0.21
CADD	Uncertain	24
DANN	Uncertain	1.0
DEOGEN2	Benign	0.31	T
Eigen	Uncertain	0.58
Eigen_PC	Uncertain	0.45
FATHMM_MKL	Uncertain	0.77	D
LIST_S2	Benign	0.74	T
M_CAP	Benign	0.032	D
MetaRNN	Uncertain	0.51	D
MetaSVM	Benign	-0.48	T
MutationAssessor	Uncertain	2.8	M
PhyloP100		2.6
PrimateAI	Uncertain	0.55	T
PROVEAN	Uncertain	-3.6	D
REVEL	Benign	0.22
Sift	Uncertain	0.021	D
Sift4G	Uncertain	0.0030	D
Polyphen		1.0	D
Vest4		0.48
MutPred		0.67		Gain of ubiquitination at E276 (P = 0.0104)
MVP		0.27
ClinPred		0.95	D
GERP RS		4.8
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.68
gMVP		0.95
Mutation Taster		=93/7	polymorphism

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

Other links and lift over

dbSNP: rs138243650; hg19: chr17-7005004;