4-122186087-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_001384125.1(BLTP1):ā€‹c.410A>Gā€‹(p.His137Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,459,326 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 32)
Exomes š‘“: 6.9e-7 ( 0 hom. )

Consequence

BLTP1
NM_001384125.1 missense

Scores

14
2
3

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.08
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 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.931

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
BLTP1NM_001384125.1 linkc.410A>G p.His137Arg missense_variant Exon 7 of 88 ENST00000679879.1 NP_001371054.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
BLTP1ENST00000679879.1 linkc.410A>G p.His137Arg missense_variant Exon 7 of 88 NM_001384125.1 ENSP00000505357.1 A0A7P0T938

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
6.85e-7
AC:
1
AN:
1459326
Hom.:
0
Cov.:
30
AF XY:
0.00
AC XY:
0
AN XY:
726006
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:
9.00e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Bravo
AF:
0.00000378

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Jun 28, 2022
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The c.410A>G (p.H137R) alteration is located in exon 5 (coding exon 5) of the KIAA1109 gene. This alteration results from a A to G substitution at nucleotide position 410, causing the histidine (H) at amino acid position 137 to be replaced by an arginine (R). 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
Pathogenic
0.99
BayesDel_addAF
Pathogenic
0.51
D
BayesDel_noAF
Pathogenic
0.50
CADD
Uncertain
23
DANN
Uncertain
1.0
DEOGEN2
Benign
0.34
T;T
Eigen
Pathogenic
0.71
Eigen_PC
Pathogenic
0.71
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.96
.;D
M_CAP
Pathogenic
0.44
D
MetaRNN
Pathogenic
0.93
D;D
MetaSVM
Pathogenic
0.94
D
MutationAssessor
Benign
1.9
L;L
PrimateAI
Pathogenic
0.85
D
PROVEAN
Pathogenic
-5.5
D;D
REVEL
Pathogenic
0.88
Sift
Pathogenic
0.0
D;D
Sift4G
Pathogenic
0.0
D;D
Polyphen
0.98
D;D
Vest4
0.98
MutPred
0.72
Gain of sheet (P = 0.1208);Gain of sheet (P = 0.1208);
MVP
0.78
MPC
1.6
ClinPred
0.99
D
GERP RS
5.2
Varity_R
0.74
gMVP
0.73

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: rs1740450552; hg19: chr4-123107242; API