Genetic Variant BLTP1:c.358+4042T>G (chr4-122179956-T-G) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001384125.1(BLTP1):c.358+4042T>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000012 in 833,104 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 31)

Exomes 𝑓: 0.0000012 ( 0 hom. )

Consequence

BLTP1
NM_001384125.1 intron

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.235

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]

BLTP1 links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.79).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
BLTP1	NM_001384125.1 link	c.358+4042T>G		intron_variant	Intron 6 of 87	ENST00000679879.1	NP_001371054.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
BLTP1	ENST00000679879.1 link	c.358+4042T>G		intron_variant	Intron 6 of 87		NM_001384125.1	ENSP00000505357.1		A0A7P0T938

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000120

AC:

AN:

833104

Hom.:

Cov.:

AF XY:

0.00000260

AC XY:

AN XY:

384712

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

15786

American (AMR)

AF:

0.00

AC:

AN:

984

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

5152

East Asian (EAS)

AF:

0.00

AC:

AN:

3630

South Asian (SAS)

AF:

0.0000608

AC:

AN:

16460

European-Finnish (FIN)

AF:

0.00

AC:

AN:

276

Middle Eastern (MID)

AF:

0.00

AC:

AN:

1620

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

761898

Other (OTH)

AF:

0.00

AC:

AN:

27298

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

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

BayesDel_noAF

Benign

-0.79

CADD

Benign

4.4

(source)

DANN

Benign

0.78

PhyloP100

-0.23

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

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4-122179956-T-G

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over