Genetic Variant BLTP3B:p.Asp1361Glu (chr12-100039788-A-C) – 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.4083T>G(p.Asp1361Glu) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000124 in 1,607,784 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/23 in silico tools predict a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

BLTP3B
NM_015054.2 missense, splice_region

Scores

Splicing: ADA: 0.3704

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.35

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:

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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=0.21395406).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
BLTP3B	NM_015054.2 link	c.4083T>G	p.Asp1361Glu	missense_variant, splice_region_variant	Exon 20 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.4083T>G	p.Asp1361Glu	missense_variant, splice_region_variant	Exon 20 of 21	1	NM_015054.2	ENSP00000279907.7	A0JNW5-1
BLTP3B	ENST00000545232.6 link	c.3033T>G	p.Asp1011Glu	missense_variant, splice_region_variant	Exon 14 of 15	1		ENSP00000444824.2	A0A0C4DGH6
BLTP3B	ENST00000548712.5 link	c.363T>G	p.Asp121Glu	missense_variant, splice_region_variant	Exon 3 of 4	3		ENSP00000447809.1	H0YHT7

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152260

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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

GnomAD4 exome

AF:

6.87e-7

AC:

AN:

1455524

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

723416

show subpopulations

Gnomad4 AFR exome

AF:

0.00

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:

9.02e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152260

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74390

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.0000189

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

May 26, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.4083T>G (p.D1361E) alteration is located in exon 20 (coding exon 20) of the UHRF1BP1L gene. This alteration results from a T to G substitution at nucleotide position 4083, causing the aspartic acid (D) at amino acid position 1361 to be replaced by a glutamic acid (E). 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

0.32

BayesDel_addAF

Benign

-0.15

BayesDel_noAF

Benign

-0.46

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.0011

T;T

Eigen

Uncertain

0.50

Eigen_PC

Uncertain

0.50

FATHMM_MKL

Uncertain

0.95

LIST_S2

Benign

0.76

T;T

M_CAP

Benign

0.015

MetaRNN

Benign

0.21

T;T

MetaSVM

Benign

-0.88

MutationAssessor

Uncertain

2.1

M;.

PrimateAI

Benign

0.47

PROVEAN

Benign

-0.24

N;N

REVEL

Benign

0.042

Sift

Benign

0.50

T;T

Sift4G

Benign

1.0

T;T

Polyphen

0.71

P;.

Vest4

0.41

MutPred

0.40

Gain of disorder (P = 0.2036);.;

MVP

0.12

MPC

0.26

ClinPred

0.54

GERP RS

5.1

Varity_R

0.061

gMVP

0.34

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.37

dbscSNV1_RF

Benign

0.44

SpliceAI score (max)

0.070

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