chr3-149129774-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_ModerateBP6BP7

The NM_032383.5(HPS3):​c.51C>T​(p.Pro17=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00116 in 1,608,694 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00090 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0012 ( 1 hom. )

Consequence

HPS3
NM_032383.5 synonymous

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:5

Conservation

PhyloP100: 0.103
Variant links:
Genes affected
HPS3 (HGNC:15597): (HPS3 biogenesis of lysosomal organelles complex 2 subunit 1) This gene encodes a protein containing a potential clathrin-binding motif, consensus dileucine signals, and tyrosine-based sorting signals for targeting to vesicles of lysosomal lineage. The encoded protein may play a role in organelle biogenesis associated with melanosomes, platelet dense granules, and lysosomes. Mutations in this gene are associated with Hermansky-Pudlak syndrome type 3. [provided by RefSeq, Apr 2015]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.29).
BP6
Variant 3-149129774-C-T is Benign according to our data. Variant chr3-149129774-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 227429.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=3, Uncertain_significance=1, Benign=1}.
BP7
Synonymous conserved (PhyloP=0.103 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
HPS3NM_032383.5 linkuse as main transcriptc.51C>T p.Pro17= synonymous_variant 1/17 ENST00000296051.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
HPS3ENST00000296051.7 linkuse as main transcriptc.51C>T p.Pro17= synonymous_variant 1/171 NM_032383.5 P1Q969F9-1

Frequencies

GnomAD3 genomes
AF:
0.000900
AC:
137
AN:
152194
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000654
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.000471
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00163
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.000838
AC:
199
AN:
237482
Hom.:
0
AF XY:
0.000785
AC XY:
102
AN XY:
129932
show subpopulations
Gnomad AFR exome
AF:
0.000265
Gnomad AMR exome
AF:
0.000379
Gnomad ASJ exome
AF:
0.000102
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000657
Gnomad FIN exome
AF:
0.000742
Gnomad NFE exome
AF:
0.00154
Gnomad OTH exome
AF:
0.000509
GnomAD4 exome
AF:
0.00119
AC:
1730
AN:
1456382
Hom.:
1
Cov.:
31
AF XY:
0.00117
AC XY:
847
AN XY:
724552
show subpopulations
Gnomad4 AFR exome
AF:
0.000120
Gnomad4 AMR exome
AF:
0.000426
Gnomad4 ASJ exome
AF:
0.000192
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000465
Gnomad4 FIN exome
AF:
0.000896
Gnomad4 NFE exome
AF:
0.00143
Gnomad4 OTH exome
AF:
0.00106
GnomAD4 genome
AF:
0.000899
AC:
137
AN:
152312
Hom.:
0
Cov.:
32
AF XY:
0.000886
AC XY:
66
AN XY:
74484
show subpopulations
Gnomad4 AFR
AF:
0.000241
Gnomad4 AMR
AF:
0.000653
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.000471
Gnomad4 NFE
AF:
0.00163
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.00102
Hom.:
0
Bravo
AF:
0.000756
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.00164
EpiControl
AF:
0.00107

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:5
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not specified Benign:3
Likely benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
Likely benign, criteria provided, single submitterclinical testingLaboratory for Molecular Medicine, Mass General Brigham Personalized MedicineJan 29, 2016p.Pro17Pro in exon 1 of HPS3: This variant is not expected to have clinical sign ificance because it does not alter an amino acid residue and is not located with in the splice consensus sequence. It has been identified in 0.1% (111/59912) of European chromosomes by the Exome Aggregation Consortium (ExAC, http://exac.broa dinstitute.org; dbSNP rs141883346). -
Benign, criteria provided, single submitterclinical testingWomen's Health and Genetics/Laboratory Corporation of America, LabCorpJul 16, 2024- -
Hermansky-Pudlak syndrome 3 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 13, 2018This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -
not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 31, 2024- -
Hermansky-Pudlak syndrome Benign:1
Likely benign, no assertion criteria providedclinical testingNatera, Inc.Sep 16, 2020- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.29
CADD
Benign
14
DANN
Benign
0.96

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: rs141883346; hg19: chr3-148847561; COSMIC: COSV99937754; API