11-64207450-C-T

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 2P and 3B. PM2BP4_ModerateBS1_Supporting

The NM_031471.6(FERMT3):​c.86C>T​(p.Ala29Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000161 in 1,614,028 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 (★). Synonymous variant affecting the same amino acid position (i.e. A29A) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000096 ( 0 hom. )

Consequence

FERMT3
NM_031471.6 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:2

Conservation

PhyloP100: 1.20
Variant links:
Genes affected
FERMT3 (HGNC:23151): (FERM domain containing kindlin 3) Kindlins are a small family of proteins that mediate protein-protein interactions involved in integrin activation and thereby have a role in cell adhesion, migration, differentiation, and proliferation. The protein encoded by this gene has a key role in the regulation of hemostasis and thrombosis. This protein may also help maintain the membrane skeleton of erythrocytes. Mutations in this gene cause the autosomal recessive leukocyte adhesion deficiency syndrome-III (LAD-III). Alternative splicing results in multiple transcript variants encoding distinct isoforms. [provided by RefSeq, Jan 2010]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.10614979).
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0000789 (12/152182) while in subpopulation AFR AF= 0.00029 (12/41440). AF 95% confidence interval is 0.000167. There are 0 homozygotes in gnomad4. There are 6 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
FERMT3NM_031471.6 linkuse as main transcriptc.86C>T p.Ala29Val missense_variant 2/15 ENST00000345728.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
FERMT3ENST00000345728.10 linkuse as main transcriptc.86C>T p.Ala29Val missense_variant 2/151 NM_031471.6 P4Q86UX7-2

Frequencies

GnomAD3 genomes
AF:
0.0000789
AC:
12
AN:
152182
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000290
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000199
AC:
5
AN:
251336
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135882
show subpopulations
Gnomad AFR exome
AF:
0.000308
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000958
AC:
14
AN:
1461846
Hom.:
0
Cov.:
31
AF XY:
0.00000413
AC XY:
3
AN XY:
727224
show subpopulations
Gnomad4 AFR exome
AF:
0.000418
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000789
AC:
12
AN:
152182
Hom.:
0
Cov.:
33
AF XY:
0.0000807
AC XY:
6
AN XY:
74340
show subpopulations
Gnomad4 AFR
AF:
0.000290
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:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000132
Hom.:
0
Bravo
AF:
0.000110
ESP6500AA
AF:
0.000682
AC:
3
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000165
AC:
2

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Leukocyte adhesion deficiency 3 Uncertain:2
Uncertain significance, no assertion criteria providedresearchDivision of Human Genetics, Children's Hospital of PhiladelphiaAug 06, 2016- -
Uncertain significance, criteria provided, single submitterclinical testingInvitaeDec 11, 2023This sequence change replaces alanine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 29 of the FERMT3 protein (p.Ala29Val). This variant is present in population databases (rs144256756, gnomAD 0.02%). This variant has not been reported in the literature in individuals affected with FERMT3-related conditions. ClinVar contains an entry for this variant (Variation ID: 417964). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be tolerated. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Benign
-0.27
T
BayesDel_noAF
Benign
-0.32
CADD
Benign
20
DANN
Uncertain
1.0
DEOGEN2
Benign
0.014
T;T;.
Eigen
Benign
-0.12
Eigen_PC
Benign
-0.083
FATHMM_MKL
Uncertain
0.92
D
LIST_S2
Benign
0.74
T;T;T
M_CAP
Benign
0.026
D
MetaRNN
Benign
0.11
T;T;T
MetaSVM
Benign
-0.83
T
MutationAssessor
Benign
1.4
.;L;L
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.62
T
PROVEAN
Benign
-0.47
N;N;N
REVEL
Benign
0.13
Sift
Benign
0.32
T;T;T
Sift4G
Benign
0.25
T;T;T
Polyphen
0.0040, 0.62
.;B;P
Vest4
0.51, 0.53
MVP
0.57
MPC
0.39
ClinPred
0.15
T
GERP RS
2.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.18
gMVP
0.35

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: rs144256756; hg19: chr11-63974922; API