3-186617342-C-A

Variant summary

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

The NM_001622.4(AHSG):c.565C>A(p.Gln189Lys) 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 1,614,084 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: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

AHSG
NM_001622.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.27

Variant links:

Genes affected

AHSG (HGNC:349): (alpha 2-HS glycoprotein) The protein encoded by this gene is a negatively-charged serum glycoprotein that is synthesized by hepatocytes. The encoded protein consists of two polypeptide chains, which are both cleaved from a proprotein encoded from a single mRNA. It is involved in several processes, including endocytosis, brain development, and the formation of bone tissue. Defects in this gene are a cause of susceptibility to leanness. [provided by RefSeq, Aug 2017]

AHSG links:

HRG-AS1 (HGNC:55915): (HRG and FETUB antisense RNA 1)

HRG-AS1 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=0.21955302).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
AHSG	NM_001622.4 linkuse as main transcript	c.565C>A	p.Gln189Lys	missense_variant	4/7	ENST00000411641.7
AHSG	NM_001354571.2 linkuse as main transcript	c.568C>A	p.Gln190Lys	missense_variant	4/7
AHSG	NM_001354572.2 linkuse as main transcript	c.562C>A	p.Gln188Lys	missense_variant	4/7
AHSG	NM_001354573.2 linkuse as main transcript	c.565C>A	p.Gln189Lys	missense_variant	4/6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
AHSG	ENST00000411641.7 linkuse as main transcript	c.565C>A	p.Gln189Lys	missense_variant	4/7	1	NM_001622.4	P3
HRG-AS1	ENST00000630178.2 linkuse as main transcript	n.239-37376G>T		intron_variant, non_coding_transcript_variant		5

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152192

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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:

6.84e-7

AC:

AN:

1461892

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727246

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

8.99e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152192

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74346

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000131

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:

0.00

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 submitter

clinical testing

Ambry Genetics

Nov 29, 2023

The c.565C>A (p.Q189K) alteration is located in exon 4 (coding exon 4) of the AHSG gene. This alteration results from a C to A substitution at nucleotide position 565, causing the glutamine (Q) at amino acid position 189 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

0.27

BayesDel_addAF

Benign

-0.12

BayesDel_noAF

Benign

-0.41

Cadd

Benign

Dann

Uncertain

0.98

DEOGEN2

Benign

0.28

T;T

Eigen

Benign

0.12

Eigen_PC

Benign

0.18

FATHMM_MKL

Benign

0.46

LIST_S2

Benign

0.61

T;T

M_CAP

Benign

0.0086

MetaRNN

Benign

0.22

T;T

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.4

M;.

MutationTaster

Benign

1.0

D;D

PrimateAI

Benign

0.41

PROVEAN

Uncertain

-2.9

D;D

REVEL

Benign

0.082

Sift

Benign

0.061

T;T

Sift4G

Benign

0.081

T;T

Polyphen

0.23

B;B

Vest4

0.20

MutPred

0.59

.;Gain of ubiquitination at Q190 (P = 0.0162);

MVP

0.55

MPC

0.29

ClinPred

0.93

GERP RS

4.7

Varity_R

0.28

gMVP

0.40

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.

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