Genetic Variant BLTP3B:p.Asp1242Asn (chr12-100048191-C-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_015054.2(BLTP3B):c.3724G>A(p.Asp1242Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000759 in 1,580,708 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000042 ( 0 hom. )

Consequence

BLTP3B
NM_015054.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.91

Variant links:

Genes affected

BLTP3B (HGNC:29102): (bridge-like lipid transfer protein family member 3B) Enables GARP complex binding activity and protein homodimerization activity. Located in cytosol and early endosome. [provided by Alliance of Genome Resources, Apr 2022]

BLTP3B links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.09966132).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
BLTP3B	NM_015054.2 link	c.3724G>A	p.Asp1242Asn	missense_variant	Exon 18 of 21	ENST00000279907.12	NP_055869.1	A0JNW5-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
BLTP3B	ENST00000279907.12 link	c.3724G>A	p.Asp1242Asn	missense_variant	Exon 18 of 21	1	NM_015054.2	ENSP00000279907.7	A0JNW5-1
BLTP3B	ENST00000545232.6 link	c.2674G>A	p.Asp892Asn	missense_variant	Exon 12 of 15	1		ENSP00000444824.2	A0A0C4DGH6
BLTP3B	ENST00000548712.5 link	c.4G>A	p.Asp2Asn	missense_variant	Exon 1 of 4	3		ENSP00000447809.1	H0YHT7

Frequencies

GnomAD3 genomes

AF:

0.0000395

AC:

AN:

152016

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000121

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000132

AC:

AN:

226818

Hom.:

AF XY:

0.0000163

AC XY:

AN XY:

123014

show subpopulations

Gnomad AFR exome

AF:

0.0000638

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:

0.0000187

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000420

AC:

AN:

1428692

Hom.:

Cov.:

AF XY:

0.00000705

AC XY:

AN XY:

708806

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.0000406

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000455

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000395

AC:

AN:

152016

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74222

show subpopulations

Gnomad4 AFR

AF:

0.000121

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000151

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000247

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 24, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.3724G>A (p.D1242N) alteration is located in exon 18 (coding exon 18) of the UHRF1BP1L gene. This alteration results from a G to A substitution at nucleotide position 3724, causing the aspartic acid (D) at amino acid position 1242 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

Benign

0.068

BayesDel_addAF

Benign

-0.40

BayesDel_noAF

Benign

-0.63

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.0029

T;T

Eigen

Benign

-0.28

Eigen_PC

Benign

-0.21

FATHMM_MKL

Uncertain

0.96

LIST_S2

Benign

0.86

D;D

M_CAP

Benign

0.0078

MetaRNN

Benign

0.10

T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.7

L;.

PrimateAI

Benign

0.41

PROVEAN

Benign

-0.97

N;N

REVEL

Benign

0.032

Sift

Benign

0.12

T;T

Sift4G

Benign

0.36

T;T

Polyphen

0.050

B;.

Vest4

0.21

MVP

0.093

MPC

0.12

ClinPred

0.23

GERP RS

5.0

Varity_R

0.068

gMVP

0.31

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