4-122174620-A-G

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 2P and 7B. PM2BP4_ModerateBP6BS1

The NM_001384125.1(BLTP1):ā€‹c.261A>Gā€‹(p.Glu87Glu) variant causes a synonymous change. The variant allele was found at a frequency of 0.000051 in 1,606,302 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (no stars).

Frequency

Genomes: š‘“ 0.00033 ( 0 hom., cov: 32)
Exomes š‘“: 0.000022 ( 0 hom. )

Consequence

BLTP1
NM_001384125.1 synonymous

Scores

2

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: 3.75
Variant links:
Genes affected
BLTP1 (HGNC:26953): (bridge-like lipid transfer protein family member 1) This gene is located on the long arm of chromosome 4 in a region that is associated with susceptibility to celiac disease. The encoded protein is similar to a Chinese hamster protein that is associated with spermatocyte and adipocyte differentiation. The C-terminus of the protein is also similar to a Caenorhabditis elegans protein that plays a role in lipid storage. In mammals, this protein is thought to function in the regulation of epithelial growth and differentiation, and in tumor development. [provided by RefSeq, Oct 2009]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.46).
BP6
Variant 4-122174620-A-G is Benign according to our data. Variant chr4-122174620-A-G is described in ClinVar as [Likely_benign]. Clinvar id is 3351344.Status of the report is no_assertion_criteria_provided, 0 stars.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.000328 (50/152318) while in subpopulation AFR AF= 0.00113 (47/41578). AF 95% confidence interval is 0.000873. There are 0 homozygotes in gnomad4. There are 33 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
BLTP1NM_001384125.1 linkc.261A>G p.Glu87Glu synonymous_variant Exon 5 of 88 ENST00000679879.1 NP_001371054.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
BLTP1ENST00000679879.1 linkc.261A>G p.Glu87Glu synonymous_variant Exon 5 of 88 NM_001384125.1 ENSP00000505357.1 A0A7P0T938

Frequencies

GnomAD3 genomes
AF:
0.000329
AC:
50
AN:
152200
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00113
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000196
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
GnomAD3 exomes
AF:
0.0000442
AC:
11
AN:
248612
Hom.:
0
AF XY:
0.0000296
AC XY:
4
AN XY:
134928
show subpopulations
Gnomad AFR exome
AF:
0.000712
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
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:
0.0000220
AC:
32
AN:
1453984
Hom.:
0
Cov.:
28
AF XY:
0.0000138
AC XY:
10
AN XY:
723828
show subpopulations
Gnomad4 AFR exome
AF:
0.000873
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:
9.05e-7
Gnomad4 OTH exome
AF:
0.0000333
GnomAD4 genome
AF:
0.000328
AC:
50
AN:
152318
Hom.:
0
Cov.:
32
AF XY:
0.000443
AC XY:
33
AN XY:
74466
show subpopulations
Gnomad4 AFR
AF:
0.00113
Gnomad4 AMR
AF:
0.000196
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
Alfa
AF:
0.000231
Hom.:
0
Bravo
AF:
0.000340

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

BLTP1-related disorder Benign:1
Mar 12, 2024
PreventionGenetics, part of Exact Sciences
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.46
CADD
Benign
8.8
DANN
Benign
0.69
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs370737828; hg19: chr4-123095775; API