Variant 5-83652759-T-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM1PM2

The NM_001884.4(HAPLN1):c.166A>C(p.Asn56His) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,634 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

HAPLN1
NM_001884.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.71

Variant links:

Genes affected

HAPLN1 (HGNC:2380): (hyaluronan and proteoglycan link protein 1) Predicted to enable hyaluronic acid binding activity. Predicted to be an extracellular matrix structural constituent conferring compression resistance. Predicted to be involved in central nervous system development and skeletal system development. Colocalizes with collagen-containing extracellular matrix. [provided by Alliance of Genome Resources, Apr 2022]

HAPLN1 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM1

In a glycosylation_site N-linked (GlcNAc...) asparagine (size 0) in uniprot entity HPLN1_HUMAN

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
HAPLN1	NM_001884.4 linkuse as main transcript	c.166A>C	p.Asn56His	missense_variant	3/5	ENST00000274341.9	NP_001875.1	P10915A0A024RAK9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
HAPLN1	ENST00000274341.9 linkuse as main transcript	c.166A>C	p.Asn56His	missense_variant	3/5	1	NM_001884.4	ENSP00000274341.4		P10915

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000796

AC:

AN:

251304

Hom.:

AF XY:

0.0000147

AC XY:

AN XY:

135804

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000109

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461634

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727082

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

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

Mar 30, 2024

The c.166A>C (p.N56H) alteration is located in exon 3 (coding exon 2) of the HAPLN1 gene. This alteration results from a A to C substitution at nucleotide position 166, causing the asparagine (N) at amino acid position 56 to be replaced by a histidine (H). 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

0.29

BayesDel_addAF

Benign

-0.11

BayesDel_noAF

Benign

-0.18

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.61

D;T;T;T;T;.;.

Eigen

Pathogenic

0.75

Eigen_PC

Pathogenic

0.74

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.90

D;T;D;T;D;D;D

M_CAP

Benign

0.036

MetaRNN

Uncertain

0.67

D;D;D;D;D;D;D

MetaSVM

Uncertain

-0.030

MutationAssessor

Uncertain

2.1

M;.;.;.;.;.;.

PrimateAI

Uncertain

0.57

PROVEAN

Uncertain

-3.2

D;D;D;D;D;D;D

REVEL

Uncertain

0.46

Sift

Uncertain

0.0050

D;D;D;D;D;D;D

Sift4G

Uncertain

0.031

D;.;D;.;.;D;D

Polyphen

1.0

D;.;.;.;.;.;.

Vest4

0.45

MutPred

0.55

Gain of disorder (P = 0.0659);Gain of disorder (P = 0.0659);Gain of disorder (P = 0.0659);.;Gain of disorder (P = 0.0659);Gain of disorder (P = 0.0659);Gain of disorder (P = 0.0659);

MVP

0.91

MPC

0.37

ClinPred

0.86

GERP RS

6.1

Varity_R

0.52

gMVP

0.67

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

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