Genetic Variant HCLS1:p.Asp453Asn (chr3-121631950-C-T) – ACMG Classification: Uncertain_significance (3 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_005335.6(HCLS1):c.1357G>A(p.Asp453Asn) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000341 in 1,614,082 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000036 ( 0 hom. )

Consequence

HCLS1
NM_005335.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.91

Variant links:

Genes affected

HCLS1 (HGNC:4844): (hematopoietic cell-specific Lyn substrate 1) Enables RNA polymerase II-specific DNA-binding transcription factor binding activity and protein kinase binding activity. Involved in several processes, including positive regulation of intracellular signal transduction; positive regulation of protein phosphorylation; and regulation of transcription, DNA-templated. Located in cytosol; nucleus; and plasma membrane. Part of transcription regulator complex. [provided by Alliance of Genome Resources, Apr 2022]

HCLS1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.792

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
HCLS1	NM_005335.6 link	c.1357G>A	p.Asp453Asn	missense_variant	Exon 14 of 14	ENST00000314583.8	NP_005326.3	P14317-1
HCLS1	NM_001292041.2 link	c.1246G>A	p.Asp416Asn	missense_variant	Exon 13 of 13		NP_001278970.2	P14317

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
HCLS1	ENST00000314583.8 link	c.1357G>A	p.Asp453Asn	missense_variant	Exon 14 of 14	1	NM_005335.6	ENSP00000320176.3	P14317-1
HCLS1	ENST00000428394.6 link	c.1246G>A	p.Asp416Asn	missense_variant	Exon 13 of 13	2		ENSP00000387645.2	E7EVW7
HCLS1	ENST00000473883.5 link	n.2160G>A		non_coding_transcript_exon_variant	Exon 9 of 9	2

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152202

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000384

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

GnomAD3 exomes

AF:

0.0000876

AC:

AN:

251222

Hom.:

AF XY:

0.0000957

AC XY:

AN XY:

135786

show subpopulations

Gnomad AFR exome

AF:

0.000123

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000435

Gnomad SAS exome

AF:

0.000229

Gnomad FIN exome

AF:

0.0000462

Gnomad NFE exome

AF:

0.0000352

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000363

AC:

AN:

1461880

Hom.:

Cov.:

AF XY:

0.0000509

AC XY:

AN XY:

727238

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000252

Gnomad4 SAS exome

AF:

0.000255

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000171

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152202

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74348

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000384

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000329

Hom.:

Bravo

AF:

0.0000227

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000132

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Feb 28, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1357G>A (p.D453N) alteration is located in exon 14 (coding exon 13) of the HCLS1 gene. This alteration results from a G to A substitution at nucleotide position 1357, causing the aspartic acid (D) at amino acid position 453 to be replaced by an asparagine (N). 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

Uncertain

0.43

BayesDel_addAF

Benign

-0.19

BayesDel_noAF

Benign

-0.19

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.45

T;T

Eigen

Pathogenic

0.85

Eigen_PC

Pathogenic

0.80

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.95

D;D

M_CAP

Uncertain

0.13

MetaRNN

Pathogenic

0.79

D;D

MetaSVM

Uncertain

0.013

MutationAssessor

Pathogenic

3.0

M;.

PrimateAI

Uncertain

0.62

PROVEAN

Uncertain

-4.2

D;D

REVEL

Pathogenic

0.69

Sift

Pathogenic

0.0

D;D

Sift4G

Uncertain

0.0020

D;D

Polyphen

1.0

D;D

Vest4

0.72

MVP

0.83

MPC

0.44

ClinPred

0.77

GERP RS

5.5

Varity_R

0.90

gMVP

0.84

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