Genetic Variant FAAP24:p.Leu176Phe (chr19-32976560-C-T) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_152266.5(FAAP24):c.526C>T(p.Leu176Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000156 in 1,614,046 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00016 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00016 ( 1 hom. )

Consequence

FAAP24
NM_152266.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.72

Variant links:

Genes affected

FAAP24 (HGNC:28467): (FA core complex associated protein 24) FAAP24 is a component of the Fanconi anemia (FA) core complex (see MIM 227650), which plays a crucial role in DNA damage response (Ciccia et al., 2007 [PubMed 17289582]).[supplied by OMIM, Mar 2008]

FAAP24 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.017523706).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FAAP24	NM_152266.5 link	c.526C>T	p.Leu176Phe	missense_variant	Exon 5 of 5	ENST00000588258.6	NP_689479.1	Q9BTP7A0A0S2Z5V6
FAAP24	NM_001300978.2 link	c.241C>T	p.Leu81Phe	missense_variant	Exon 3 of 3		NP_001287907.1	Q9BTP7K7EKQ4
FAAP24	XM_005259393.4 link	c.397C>T	p.Leu133Phe	missense_variant	Exon 5 of 5		XP_005259450.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FAAP24	ENST00000588258.6 link	c.526C>T	p.Leu176Phe	missense_variant	Exon 5 of 5	1	NM_152266.5	ENSP00000466121.1		Q9BTP7

Frequencies

GnomAD3 genomes

AF:

0.000164

AC:

AN:

152164

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00663

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:

0.000478

GnomAD3 exomes

AF:

0.000290

AC:

AN:

251414

Hom.:

AF XY:

0.000250

AC XY:

AN XY:

135886

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00615

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000792

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000155

AC:

227

AN:

1461882

Hom.:

Cov.:

AF XY:

0.000150

AC XY:

109

AN XY:

727246

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00654

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000243

Gnomad4 OTH exome

AF:

0.000464

GnomAD4 genome

AF:

0.000164

AC:

AN:

152164

Hom.:

Cov.:

AF XY:

0.000188

AC XY:

AN XY:

74322

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00663

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.000478

Alfa

AF:

0.000279

Hom.:

Bravo

AF:

0.000178

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000349

AC:

ExAC

AF:

0.000222

AC:

EpiCase

AF:

0.0000545

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

Jun 10, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.526C>T (p.L176F) alteration is located in exon 5 (coding exon 4) of the FAAP24 gene. This alteration results from a C to T substitution at nucleotide position 526, causing the leucine (L) at amino acid position 176 to be replaced by a phenylalanine (F). 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

0.15

BayesDel_addAF

Benign

-0.24

BayesDel_noAF

Benign

-0.40

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.095

.;T;.;T

Eigen

Uncertain

0.59

Eigen_PC

Uncertain

0.51

FATHMM_MKL

Benign

0.51

LIST_S2

Uncertain

0.87

.;.;D;D

M_CAP

Benign

0.021

MetaRNN

Benign

0.018

T;T;T;T

MetaSVM

Uncertain

0.12

MutationAssessor

Uncertain

2.5

.;M;.;M

Sift4G

Benign

0.086

T;T;T;T

Polyphen

1.0

.;D;.;D

Vest4

0.39

MVP

0.40

MPC

1.0

ClinPred

0.17

GERP RS

5.3

Varity_R

0.36

gMVP

0.18

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over