chr17-7101700-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_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. 12/21 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

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.02
Variant links:
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]

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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=0.19257009).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ASGR2NM_001201352.2 linkuse as main transcriptc.796G>A p.Glu266Lys missense_variant 9/9 ENST00000691900.1 NP_001188281.1 P07307Q7Z4G9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ASGR2ENST00000691900.1 linkuse as main transcriptc.796G>A p.Glu266Lys missense_variant 9/9 NM_001201352.2 ENSP00000510808.1 Q7Z4G9
ASGR2ENST00000355035.9 linkuse as main transcriptc.811G>A p.Glu271Lys missense_variant 9/91 ENSP00000347140.5 P07307-1
ASGR2ENST00000446679.6 linkuse as main transcriptc.754G>A p.Glu252Lys missense_variant 8/81 ENSP00000405844.2 P07307-2
ASGR2ENST00000254850.11 linkuse as main transcriptc.739G>A p.Glu247Lys missense_variant 9/91 ENSP00000254850.7 P07307-3

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000796
AC:
2
AN:
251380
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135866
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.0000327
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
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Bravo
AF:
0.00000378

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 submitterclinical testingAmbry GeneticsJan 29, 2024The c.811G>A (p.E271K) alteration is located in exon 9 (coding exon 8) of the ASGR2 gene. This alteration results from a G to A substitution at nucleotide position 811, causing the glutamic acid (E) at amino acid position 271 to be replaced by a lysine (K). 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
0.21
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;T;T
M_CAP
Benign
0.0096
T
MetaRNN
Benign
0.19
T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.5
L;.;.
MutationTaster
Benign
1.0
N;N;N;N
PrimateAI
Uncertain
0.50
T
PROVEAN
Benign
-1.5
N;N;N
REVEL
Benign
0.11
Sift
Benign
0.11
T;T;T
Sift4G
Benign
0.14
T;T;T
Polyphen
0.76
P;D;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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

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