NM_018027.5:c.3104A>G
Variant names:
Variant summary
Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate
The NM_018027.5(FRMD4A):c.3104A>G(p.Gln1035Arg) variant causes a missense change. The variant allele was found at a frequency of 0.0000019 in 1,582,076 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000014 ( 0 hom. )
Consequence
FRMD4A
NM_018027.5 missense
NM_018027.5 missense
Scores
3
16
Clinical Significance
Conservation
PhyloP100: 6.06
Publications
0 publications found
Genes affected
FRMD4A (HGNC:25491): (FERM domain containing 4A) This gene encodes a FERM domain-containing protein that regulates epithelial cell polarity. It connects ADP ribosylation factor 6 (ARF6) with the Par protein complex, which regulates the remodeling of adherens junctions and linear actin cable formation during epithelial cell polarization. Polymorphisms in this gene are associated with Alzheimer's disease, and also with nicotine dependence. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Dec 2015]
PRPF18 (HGNC:17351): (pre-mRNA processing factor 18) Pre-mRNA splicing occurs in 2 sequential transesterification steps. The protein encoded by this gene is found to be essential for the catalytic step II in pre-mRNA splicing process. It is found in the spliceosome, and contains seven WD repeats, which function in protein-protein interactions. This protein has a sequence similarity to the yeast splicing factor Prp18. [provided by RefSeq, Jul 2008]
Genome browser will be placed here
ACMG classification
Classification was made for transcript
Our verdict: Uncertain_significance. The variant received 0 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.14958048).
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes 0.00000657 AC: 1AN: 152180Hom.: 0 Cov.: 33 show subpopulations
GnomAD3 genomes
AF:
AC:
1
AN:
152180
Hom.:
Cov.:
33
Gnomad AFR
AF:
Gnomad AMI
AF:
Gnomad AMR
AF:
Gnomad ASJ
AF:
Gnomad EAS
AF:
Gnomad SAS
AF:
Gnomad FIN
AF:
Gnomad MID
AF:
Gnomad NFE
AF:
Gnomad OTH
AF:
GnomAD4 exome AF: 0.00000140 AC: 2AN: 1429896Hom.: 0 Cov.: 26 AF XY: 0.00 AC XY: 0AN XY: 713524 show subpopulations ⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.
GnomAD4 exome
AF:
AC:
2
AN:
1429896
Hom.:
Cov.:
26
AF XY:
AC XY:
0
AN XY:
713524
show subpopulations
⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
AC:
0
AN:
32946
American (AMR)
AF:
AC:
0
AN:
44696
Ashkenazi Jewish (ASJ)
AF:
AC:
0
AN:
25968
East Asian (EAS)
AF:
AC:
0
AN:
39522
South Asian (SAS)
AF:
AC:
0
AN:
85596
European-Finnish (FIN)
AF:
AC:
0
AN:
53410
Middle Eastern (MID)
AF:
AC:
0
AN:
5712
European-Non Finnish (NFE)
AF:
AC:
2
AN:
1082762
Other (OTH)
AF:
AC:
0
AN:
59284
⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.002339), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.350
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome 0.00000657 AC: 1AN: 152180Hom.: 0 Cov.: 33 AF XY: 0.0000135 AC XY: 1AN XY: 74344 show subpopulations
GnomAD4 genome
AF:
AC:
1
AN:
152180
Hom.:
Cov.:
33
AF XY:
AC XY:
1
AN XY:
74344
show subpopulations
African (AFR)
AF:
AC:
1
AN:
41438
American (AMR)
AF:
AC:
0
AN:
15278
Ashkenazi Jewish (ASJ)
AF:
AC:
0
AN:
3464
East Asian (EAS)
AF:
AC:
0
AN:
5202
South Asian (SAS)
AF:
AC:
0
AN:
4828
European-Finnish (FIN)
AF:
AC:
0
AN:
10618
Middle Eastern (MID)
AF:
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
AC:
0
AN:
68032
Other (OTH)
AF:
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
Hom.:
Bravo
AF:
ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
not specified Uncertain:1
Dec 25, 2024
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing
The c.3104A>G (p.Q1035R) alteration is located in exon 24 (coding exon 23) of the FRMD4A gene. This alteration results from a A to G substitution at nucleotide position 3104, causing the glutamine (Q) at amino acid position 1035 to be replaced by an arginine (R). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
BayesDel_addAF
Benign
T
BayesDel_noAF
Benign
DANN
Uncertain
DEOGEN2
Benign
T
Eigen
Benign
Eigen_PC
Benign
FATHMM_MKL
Uncertain
D
LIST_S2
Benign
T
M_CAP
Benign
D
MetaRNN
Benign
T
MetaSVM
Benign
T
MutationAssessor
Benign
N
PhyloP100
PrimateAI
Benign
T
PROVEAN
Benign
N
REVEL
Benign
Sift
Uncertain
D
Sift4G
Benign
T
Polyphen
P
Vest4
MutPred
Loss of solvent accessibility (P = 0.0299);
MVP
MPC
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at
Publications
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