Genetic Variant HAVCR1:p.Thr207Pro (chr5-157052415-T-G) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001173393.3(HAVCR1):c.619A>C(p.Thr207Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,662 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/20 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. T207A) has been classified as Benign.

Frequency

Genomes: not found (cov: 35)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

HAVCR1
NM_001173393.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.709

Publications

0 publications found

Variant links:

Genes affected

HAVCR1 (HGNC:17866): (hepatitis A virus cellular receptor 1) The protein encoded by this gene is a membrane receptor for both human hepatitis A virus (HHAV) and TIMD4. The encoded protein may be involved in the moderation of asthma and allergic diseases. The reference genome represents an allele that retains a MTTVP amino acid segment that confers protection against atopy in HHAV seropositive individuals. The protein is a receptor for multiple other viruses, including Ebola virus, Marburg virus, Dengue virus, and Zika virus and is a possible entry factor for SARS-CoV-2 and other coronaviruses. [provided by RefSeq, Sep 2021]

HAVCR1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

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=0.06959152).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
HAVCR1	NM_001173393.3 link	c.619A>C	p.Thr207Pro	missense_variant	Exon 4 of 9	ENST00000523175.6	NP_001166864.1	Q96D42B4DPB1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
HAVCR1	ENST00000523175.6 link	c.619A>C	p.Thr207Pro	missense_variant	Exon 4 of 9	1	NM_001173393.3	ENSP00000427898.1		Q96D42

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461662

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727152

show subpopulations

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

African (AFR)

AF:

0.00

AC:

AN:

33472

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39696

South Asian (SAS)

AF:

0.00

AC:

AN:

86254

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5764

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1111818

Other (OTH)

AF:

0.00

AC:

AN:

60380

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.375

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.072

BayesDel_addAF

Benign

-0.27

BayesDel_noAF

Benign

-0.63

CADD

Benign

1.2

(source)

DANN

Benign

0.38

DEOGEN2

Benign

0.019

T;.;.;T;.

Eigen

Benign

-1.0

Eigen_PC

Benign

-1.0

FATHMM_MKL

Benign

0.085

LIST_S2

Benign

0.13

.;.;T;T;T

M_CAP

Benign

0.0024

MetaRNN

Benign

0.070

T;T;T;T;T

MetaSVM

Benign

-1.0

PhyloP100

-0.71

PrimateAI

Benign

0.19

PROVEAN

Benign

-0.67

N;N;N;.;N

REVEL

Benign

0.13

Sift

Benign

0.21

T;T;T;.;T

Sift4G

Benign

0.13

T;T;T;T;T

Polyphen

0.33

B;.;.;B;.

Vest4

0.11

MutPred

0.27

Loss of sheet (P = 0.007);Loss of sheet (P = 0.007);Loss of sheet (P = 0.007);Loss of sheet (P = 0.007);Loss of sheet (P = 0.007);

MVP

0.14

MPC

0.25

ClinPred

0.26

GERP RS

1.1

gMVP

0.11

Mutation Taster

=98/2

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over