3-100753848-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001375547.2(ABI3BP):​c.4931C>A​(p.Ala1644Glu) variant causes a missense, splice region change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000124 in 1,608,936 control chromosomes in the GnomAD database, with no homozygous occurrence. 2/3 splice prediction tools predicting alterations to normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

ABI3BP
NM_001375547.2 missense, splice_region

Scores

5
8
6
Splicing: ADA: 0.9648
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.00
Variant links:
Genes affected
ABI3BP (HGNC:17265): (ABI family member 3 binding protein) Predicted to enable actin filament binding activity and glycosaminoglycan binding activity. Predicted to be involved in regulation of actin cytoskeleton reorganization; regulation of dendritic spine morphogenesis; and regulation of postsynaptic density assembly. Predicted to act upstream of or within extracellular matrix organization and positive regulation of cell-substrate adhesion. Located in extracellular space. Colocalizes with collagen-containing extracellular matrix. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ABI3BPNM_001375547.2 linkuse as main transcriptc.4931C>A p.Ala1644Glu missense_variant, splice_region_variant 65/68 ENST00000471714.6 NP_001362476.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ABI3BPENST00000471714.6 linkuse as main transcriptc.4931C>A p.Ala1644Glu missense_variant, splice_region_variant 65/685 NM_001375547.2 ENSP00000420524.2 D3YTG3

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152162
Hom.:
0
Cov.:
32
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:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000831
AC:
2
AN:
240588
Hom.:
0
AF XY:
0.00000768
AC XY:
1
AN XY:
130172
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000183
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000117
AC:
17
AN:
1456774
Hom.:
0
Cov.:
31
AF XY:
0.0000152
AC XY:
11
AN XY:
724022
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:
0.0000153
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152162
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74330
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:
0.0000441
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000102
Hom.:
0
ExAC
AF:
0.00000828
AC:
1

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsOct 20, 2024The c.2798C>A (p.A933E) alteration is located in exon 32 (coding exon 32) of the ABI3BP gene. This alteration results from a C to A substitution at nucleotide position 2798, causing the alanine (A) at amino acid position 933 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
Pathogenic
0.93
BayesDel_addAF
Pathogenic
0.19
D
BayesDel_noAF
Uncertain
0.040
CADD
Pathogenic
32
DANN
Uncertain
0.99
DEOGEN2
Benign
0.13
T;T
Eigen
Pathogenic
0.75
Eigen_PC
Pathogenic
0.78
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Benign
0.84
T;D
M_CAP
Benign
0.020
T
MetaRNN
Uncertain
0.51
D;D
MetaSVM
Benign
-0.31
T
MutationAssessor
Benign
2.0
.;M
PrimateAI
Uncertain
0.71
T
PROVEAN
Uncertain
-2.9
D;D
REVEL
Uncertain
0.29
Sift
Uncertain
0.0070
D;D
Sift4G
Uncertain
0.011
D;D
Polyphen
1.0
D;P
Vest4
0.65
MutPred
0.074
Loss of glycosylation at S1631 (P = 0.0426);.;
MVP
0.96
MPC
0.12
ClinPred
0.82
D
GERP RS
5.8
Varity_R
0.46
gMVP
0.65

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
0.96
dbscSNV1_RF
Pathogenic
0.81
SpliceAI score (max)
0.040
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: rs752464014; hg19: chr3-100472692; API