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GeneBe

4-122186182-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 3P and 2B. PM2PP2BP4_Moderate

The NM_001384125.1(BLTP1):c.505C>T(p.Arg169Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000627 in 1,611,622 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000058 ( 0 hom. )

Consequence

BLTP1
NM_001384125.1 missense

Scores

5
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.54
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]

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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 where missense usually causes diseases, BLTP1
BP4
Computational evidence support a benign effect (MetaRNN=0.14022547).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
BLTP1NM_001384125.1 linkuse as main transcriptc.505C>T p.Arg169Trp missense_variant 7/88 ENST00000679879.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
BLTP1ENST00000679879.1 linkuse as main transcriptc.505C>T p.Arg169Trp missense_variant 7/88 NM_001384125.1 A2

Frequencies

GnomAD3 genomes
AF:
0.000112
AC:
17
AN:
151846
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000314
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000442
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000564
AC:
14
AN:
248254
Hom.:
0
AF XY:
0.0000520
AC XY:
7
AN XY:
134736
show subpopulations
Gnomad AFR exome
AF:
0.000453
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000328
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000532
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000575
AC:
84
AN:
1459776
Hom.:
0
Cov.:
30
AF XY:
0.0000578
AC XY:
42
AN XY:
726182
show subpopulations
Gnomad4 AFR exome
AF:
0.000330
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000612
Gnomad4 OTH exome
AF:
0.0000663
GnomAD4 genome
AF:
0.000112
AC:
17
AN:
151846
Hom.:
0
Cov.:
32
AF XY:
0.000108
AC XY:
8
AN XY:
74162
show subpopulations
Gnomad4 AFR
AF:
0.000314
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000442
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000652
Hom.:
0
Bravo
AF:
0.000147
ESP6500AA
AF:
0.000551
AC:
2
ESP6500EA
AF:
0.000123
AC:
1
ExAC
AF:
0.0000579
AC:
7
EpiCase
AF:
0.00
EpiControl
AF:
0.0000594

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGeneDxOct 16, 2020Has not been previously published as pathogenic or benign to our knowledge; In silico analysis supports that this missense variant does not alter protein structure/function -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.093
BayesDel_addAF
Benign
-0.14
T
BayesDel_noAF
Benign
-0.13
Cadd
Uncertain
23
Dann
Uncertain
1.0
DEOGEN2
Benign
0.023
T;T
Eigen
Benign
-0.11
Eigen_PC
Benign
-0.064
FATHMM_MKL
Uncertain
0.95
D
M_CAP
Benign
0.034
D
MetaRNN
Benign
0.14
T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.4
L;L
MutationTaster
Benign
1.0
N;N;N
PrimateAI
Uncertain
0.50
T
PROVEAN
Benign
-2.0
N;N
REVEL
Benign
0.28
Sift
Uncertain
0.0050
D;D
Sift4G
Uncertain
0.0030
D;D
Polyphen
0.74
P;P
Vest4
0.37
MVP
0.62
MPC
0.79
ClinPred
0.083
T
GERP RS
3.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.097
gMVP
0.24

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.

Other links and lift over

dbSNP: rs185301281; hg19: chr4-123107337; API