Variant 1-2193744-G-A details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_001282671.2(FAAP20):c.-713C>T variant causes a 5 prime UTR premature start codon gain change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000848 in 1,591,118 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 0.00043 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000048 ( 0 hom. )

Consequence

FAAP20
NM_001282671.2 5_prime_UTR_premature_start_codon_gain

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.0440

Variant links:

Genes affected

FAAP20 (HGNC:26428): (FA core complex associated protein 20) Enables K63-linked polyubiquitin modification-dependent protein binding activity and ubiquitin-dependent protein binding activity. Involved in interstrand cross-link repair and translesion synthesis. Located in cell junction; chromosome; and nuclear body. Part of Fanconi anaemia nuclear complex. [provided by Alliance of Genome Resources, Apr 2022]

FAAP20 links:

FAAP20 (HGNC:):

FAAP20 links:

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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=0.02307874).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
FAAP20	NM_182533.4 linkuse as main transcript	c.365C>T	p.Pro122Leu	missense_variant	3/4	ENST00000378546.9	NP_872339.3	Q6NZ36-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
FAAP20	ENST00000378546.9 linkuse as main transcript	c.365C>T	p.Pro122Leu	missense_variant	3/4	1	NM_182533.4	ENSP00000367808.4		Q6NZ36-1

Frequencies

GnomAD3 genomes

AF:

0.000427

AC:

AN:

152240

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00147

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000262

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:

0.000109

AC:

AN:

220634

Hom.:

AF XY:

0.0000817

AC XY:

AN XY:

122364

show subpopulations

Gnomad AFR exome

AF:

0.00131

Gnomad AMR exome

AF:

0.000184

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:

0.000190

GnomAD4 exome

AF:

0.0000480

AC:

AN:

1438760

Hom.:

Cov.:

AF XY:

0.0000419

AC XY:

AN XY:

715590

show subpopulations

Gnomad4 AFR exome

AF:

0.00151

Gnomad4 AMR exome

AF:

0.000242

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000835

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000674

GnomAD4 genome

AF:

0.000433

AC:

AN:

152358

Hom.:

Cov.:

AF XY:

0.000443

AC XY:

AN XY:

74502

show subpopulations

Gnomad4 AFR

AF:

0.00149

Gnomad4 AMR

AF:

0.000261

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:

0.0000434

Hom.:

Bravo

AF:

0.000416

ExAC

AF:

0.0000915

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

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 submitter

clinical testing

Ambry Genetics

Jun 09, 2022

The c.352C>T (p.R118W) alteration is located in exon 7 (coding exon 3) of the FAAP20 gene. This alteration results from a C to T substitution at nucleotide position 352, causing the arginine (R) at amino acid position 118 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

0.081

BayesDel_addAF

Benign

-0.46

BayesDel_noAF

Benign

-0.48

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.038

.;T

Eigen

Benign

-0.90

Eigen_PC

Benign

-0.99

FATHMM_MKL

Benign

0.056

LIST_S2

Benign

0.50

T;T

M_CAP

Benign

0.021

MetaRNN

Benign

0.023

T;T

MetaSVM

Benign

-0.99

MutationAssessor

Benign

1.9

L;L

MutationTaster

Benign

1.0

N;N;N;N;N

PROVEAN

Pathogenic

-6.3

D;D

REVEL

Benign

0.058

Sift

Uncertain

0.0080

D;D

Sift4G

Benign

0.10

T;T

Polyphen

0.54

.;P

Vest4

0.14

MVP

0.13

MPC

0.91

ClinPred

0.095

GERP RS

0.43

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.3

Varity_R

0.18

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

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