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GeneBe

chr3-69181232-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_015123.3(FRMD4B):​c.2518C>T​(p.Arg840Trp) variant causes a missense change. The variant allele was found at a frequency of 0.000018 in 1,613,690 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000018 ( 0 hom. )

Consequence

FRMD4B
NM_015123.3 missense

Scores

1
9
9

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.38
Variant links:
Genes affected
FRMD4B (HGNC:24886): (FERM domain containing 4B) This gene encodes a GRP1-binding protein which contains a FERM protein interaction domain as well as two coiled coil domains. This protein may play a role as a scaffolding protein. [provided by RefSeq, Mar 2014]

Genome browser will be placed here

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;
BP4
Computational evidence support a benign effect (MetaRNN=0.26408857).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
FRMD4BNM_015123.3 linkuse as main transcriptc.2518C>T p.Arg840Trp missense_variant 21/23 ENST00000398540.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
FRMD4BENST00000398540.8 linkuse as main transcriptc.2518C>T p.Arg840Trp missense_variant 21/231 NM_015123.3 P1Q9Y2L6-1
FRMD4BENST00000478263.5 linkuse as main transcriptc.1474C>T p.Arg492Trp missense_variant 11/131

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152162
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000160
AC:
4
AN:
249244
Hom.:
0
AF XY:
0.0000148
AC XY:
2
AN XY:
135218
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:
0.0000980
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000885
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000185
AC:
27
AN:
1461528
Hom.:
0
Cov.:
37
AF XY:
0.0000206
AC XY:
15
AN XY:
727064
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.0000383
Gnomad4 EAS exome
AF:
0.0000756
Gnomad4 SAS exome
AF:
0.0000812
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000117
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152162
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74324
show subpopulations
Gnomad4 AFR
AF:
0.0000241
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:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000329
Hom.:
0
Bravo
AF:
0.0000227
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000120
AC:
1
ExAC
AF:
0.0000331
AC:
4
EpiCase
AF:
0.000109
EpiControl
AF:
0.00

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 GeneticsDec 01, 2022The c.2518C>T (p.R840W) alteration is located in exon 21 (coding exon 21) of the FRMD4B gene. This alteration results from a C to T substitution at nucleotide position 2518, causing the arginine (R) at amino acid position 840 to be replaced by a tryptophan (W). 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
Benign
0.21
BayesDel_addAF
Benign
-0.081
T
BayesDel_noAF
Benign
-0.15
CADD
Uncertain
24
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.020
T;T
Eigen
Benign
0.11
Eigen_PC
Benign
0.19
FATHMM_MKL
Uncertain
0.92
D
LIST_S2
Uncertain
0.97
D;D
M_CAP
Uncertain
0.14
D
MetaRNN
Benign
0.26
T;T
MetaSVM
Uncertain
-0.23
T
MutationAssessor
Uncertain
2.2
M;.
MutationTaster
Benign
0.96
D;D;D
PrimateAI
Benign
0.38
T
PROVEAN
Uncertain
-2.7
D;N
REVEL
Uncertain
0.36
Sift
Uncertain
0.0020
D;D
Sift4G
Uncertain
0.0060
D;D
Polyphen
0.94
P;.
Vest4
0.63
MVP
0.40
MPC
0.21
ClinPred
0.84
D
GERP RS
3.0
Varity_R
0.12
gMVP
0.45

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: rs376166259; hg19: chr3-69230383; COSMIC: COSV68330994; API