Variant chr4-122186116-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 3P and 2B. PM2PP2BP4BS1_Supporting

The NM_001384125.1(BLTP1):c.439C>T(p.Arg147Cys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000254 in 1,612,128 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 Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000026 ( 0 hom. )

Consequence

BLTP1
NM_001384125.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.70

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 made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP2

Missense variant in gene, where missense usually causes diseases (based on misZ statistic), BLTP1. . Gene score misZ 6.0015 (greater than the threshold 3.09). Trascript score misZ 7.6647 (greater than threshold 3.09). GenCC has associacion of gene with Alkuraya-Kucinskas syndrome.

BP4

Computational evidence support a benign effect (MetaRNN=0.3040641).

BS1

Variant frequency is greater than expected in population eas. gnomad4_exome allele frequency = 0.000026 (38/1460040) while in subpopulation EAS AF= 0.000607 (24/39558). AF 95% confidence interval is 0.000417. There are 0 homozygotes in gnomad4_exome. There are 18 alleles in male gnomad4_exome subpopulation. Median coverage is 30. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
BLTP1	NM_001384125.1 linkuse as main transcript	c.439C>T	p.Arg147Cys	missense_variant	7/88	ENST00000679879.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
BLTP1	ENST00000679879.1 linkuse as main transcript	c.439C>T	p.Arg147Cys	missense_variant	7/88		NM_001384125.1	A2

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

151970

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000386

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:

0.0000724

AC:

AN:

248566

Hom.:

AF XY:

0.0000519

AC XY:

AN XY:

134922

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000669

Gnomad SAS exome

AF:

0.0000328

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000266

Gnomad OTH exome

AF:

0.000332

GnomAD4 exome

AF:

0.0000260

AC:

AN:

1460040

Hom.:

Cov.:

AF XY:

0.0000248

AC XY:

AN XY:

726362

show subpopulations

Gnomad4 AFR exome

AF:

0.0000300

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000607

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000900

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152088

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74342

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000387

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000340

ExAC

AF:

0.0000662

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.0000548

EpiControl

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Alkuraya-Kucinskas syndrome

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Genomic Research Center, Shahid Beheshti University of Medical Sciences

Dec 18, 2017

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.099

BayesDel_addAF

Benign

-0.064

BayesDel_noAF

Uncertain

0.040

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.19

T;T

Eigen

Uncertain

0.36

Eigen_PC

Uncertain

0.45

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.97

.;D

M_CAP

Uncertain

0.15

MetaRNN

Benign

0.30

T;T

MetaSVM

Uncertain

0.53

MutationAssessor

Benign

1.1

L;L

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Benign

0.29

PROVEAN

Uncertain

-3.1

D;D

REVEL

Uncertain

0.52

Sift

Uncertain

0.0030

D;D

Sift4G

Pathogenic

0.0010

D;D

Polyphen

0.83

P;P

Vest4

0.57

MutPred

0.43

Gain of catalytic residue at L148 (P = 0.0135);Gain of catalytic residue at L148 (P = 0.0135);

MVP

0.67

MPC

1.1

ClinPred

0.25

GERP RS

4.9

Varity_R

0.17

gMVP

0.39

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