17-7101700-C-T

Variant names:

• chr17-7101700-C-T
• rs1369634043
• NM_001201352.2:c.796G>A

Variant summary

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

The NM_001201352.2(ASGR2):​c.796G>A​(p.Glu266Lys) variant causes a missense change. The variant allele was found at a frequency of 0.00000205 in 1,461,836 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: ASGR2 NM_001201352.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.02
• Publications: 2 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 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.19257009).

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.796G>A	p.Glu266Lys	missense	Exon 9 of 9	NP_001188281.1	Q7Z4G9
	ASGR2	NM_001181.4		c.811G>A	p.Glu271Lys	missense	Exon 9 of 9	NP_001172.1	P07307
	ASGR2	NM_080912.3		c.811G>A	p.Glu271Lys	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.796G>A	p.Glu266Lys	missense	Exon 9 of 9	ENSP00000510808.1	Q7Z4G9
	ASGR2	ENST00000355035.9	TSL:1	c.811G>A	p.Glu271Lys	missense	Exon 9 of 9	ENSP00000347140.5	P07307-1
	ASGR2	ENST00000446679.6	TSL:1	c.754G>A	p.Glu252Lys	missense	Exon 8 of 8	ENSP00000405844.2	P07307-2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.00000796 AC: 2 AN: 251380 AF XY: 0.00000736

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.0000544

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000205 AC: 3 AN: 1461836 Hom.: 0 Cov.: 31 AF XY: 0.00000275 AC XY: 2 AN XY: 727228

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

African (AFR) AF: 0.0000299 AC: 1 AN: 33480

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

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26134

East Asian (EAS) AF: 0.0000252 AC: 1 AN: 39698

South Asian (SAS) AF: 0.0000116 AC: 1 AN: 86250

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53388

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

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1112000

Other (OTH) AF: 0.00 AC: 0 AN: 60394

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.0000416442), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

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	Benign	0.21
BayesDel_addAF	Benign	-0.27	T
BayesDel_noAF	Benign	-0.45
CADD	Benign	20
DANN	Uncertain	0.99
DEOGEN2	Benign	0.072	T
Eigen	Benign	-0.13
Eigen_PC	Benign	-0.19
FATHMM_MKL	Benign	0.30	N
LIST_S2	Benign	0.82	T
M_CAP	Benign	0.0096	T
MetaRNN	Benign	0.19	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.5	L
PhyloP100		4.0
PrimateAI	Uncertain	0.50	T
PROVEAN	Benign	-1.5	N
REVEL	Benign	0.11
Sift	Benign	0.11	T
Sift4G	Benign	0.14	T
Polyphen		0.76	P
Vest4		0.34
MutPred		0.44		Gain of ubiquitination at E271 (P = 0.0117)
MVP		0.18
ClinPred		0.65	D
GERP RS		4.5
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.12
gMVP		0.77

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: rs1369634043; hg19: chr17-7005019; COSMIC: COSV54692176;