16-89748691-C-T

Position:

chr16-89748691-C-T

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 2P and 3B. PM2BP4_ModerateBP6

The NM_000135.4(FANCA):c.3316G>A(p.Glu1106Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000198 in 1,614,106 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000019 ( 0 hom. )

Consequence

FANCA
NM_000135.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:5B:1

Conservation

PhyloP100: -0.995

Variant links:

Genes affected

FANCA (HGNC:3582): (FA complementation group A) The Fanconi anemia complementation group (FANC) currently includes FANCA, FANCB, FANCC, FANCD1 (also called BRCA2), FANCD2, FANCE, FANCF, FANCG, FANCI, FANCJ (also called BRIP1), FANCL, FANCM and FANCN (also called PALB2). The previously defined group FANCH is the same as FANCA. Fanconi anemia is a genetically heterogeneous recessive disorder characterized by cytogenetic instability, hypersensitivity to DNA crosslinking agents, increased chromosomal breakage, and defective DNA repair. The members of the Fanconi anemia complementation group do not share sequence similarity; they are related by their assembly into a common nuclear protein complex. This gene encodes the protein for complementation group A. Alternative splicing results in multiple transcript variants encoding different isoforms. Mutations in this gene are the most common cause of Fanconi anemia. [provided by RefSeq, Jul 2008]

FANCA links:

FANCA (HGNC:):

FANCA links:

Genome browser will be placed here

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=0.12309638).

BP6

Variant 16-89748691-C-T is Benign according to our data. Variant chr16-89748691-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 555397.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=2}.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
FANCA	NM_000135.4 linkuse as main transcript	c.3316G>A	p.Glu1106Lys	missense_variant	33/43	ENST00000389301.8	NP_000126.2	O15360-1
FANCA	NM_001286167.3 linkuse as main transcript	c.3316G>A	p.Glu1106Lys	missense_variant	33/43		NP_001273096.1	O15360-3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
FANCA	ENST00000389301.8 linkuse as main transcript	c.3316G>A	p.Glu1106Lys	missense_variant	33/43	1	NM_000135.4	ENSP00000373952.3		O15360-1

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152206

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000724

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:

0.0000159

AC:

AN:

251080

Hom.:

AF XY:

0.0000147

AC XY:

AN XY:

135760

show subpopulations

Gnomad AFR exome

AF:

0.0000616

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:

0.0000264

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000192

AC:

AN:

1461782

Hom.:

Cov.:

AF XY:

0.0000206

AC XY:

AN XY:

727194

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000198

Gnomad4 OTH exome

AF:

0.0000662

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152324

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74502

show subpopulations

Gnomad4 AFR

AF:

0.0000721

Gnomad4 AMR

AF:

0.0000654

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:

0.0000387

Hom.:

Bravo

AF:

0.0000264

ExAC

AF:

0.00000824

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.00

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:5Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Fanconi anemia complementation group A

Uncertain:3

Uncertain significance, criteria provided, single submitter	clinical testing	Counsyl	Dec 04, 2017	- -
Uncertain significance, criteria provided, single submitter	clinical testing	Fulgent Genetics, Fulgent Genetics	Feb 25, 2022	- -
Uncertain significance, no assertion criteria provided	curation	Leiden Open Variation Database	Feb 28, 2020	Curator: Arleen D. Auerbach. Submitter to LOVD: Arleen D. Auerbach. -

Fanconi anemia

Uncertain:1Benign:1

Uncertain significance, no assertion criteria provided	clinical testing	Natera, Inc.	Oct 15, 2021	- -
Likely benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Dec 17, 2023	- -

FANCA-related disorder

Uncertain:1

Uncertain significance, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Sep 13, 2024

The FANCA c.3316G>A variant is predicted to result in the amino acid substitution p.Glu1106Lys. This variant has been reported previously, in the cis configuration with another variant designated FANCA c.3338A>T, in individuals with Fanconi anemia who also harbored a second FANCA variant on the opposite allele (Table S2 in Zhang et al. 2015. PubMed ID: 25239263; Coleman et al. 2023. PubMed ID: 37276838). This variant is reported in 0.0080% of alleles in individuals of African descent in gnomAD and has conflicting interpretations ranging from uncertain to likely benign in ClinVar (https://www.ncbi.nlm.nih.gov/clinvar/variation/555397/). At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.085

BayesDel_addAF

Benign

-0.14

BayesDel_noAF

Benign

-0.26

CADD

Benign

1.1

DANN

Uncertain

0.98

DEOGEN2

Benign

0.37

T;.

Eigen

Benign

-1.1

Eigen_PC

Benign

-1.2

FATHMM_MKL

Benign

0.021

LIST_S2

Benign

0.46

T;T

M_CAP

Benign

0.052

MetaRNN

Benign

0.12

T;T

MetaSVM

Benign

-0.71

MutationAssessor

Uncertain

2.0

M;M

PrimateAI

Benign

0.27

PROVEAN

Benign

-2.0

N;N

REVEL

Benign

0.23

Sift

Benign

0.089

T;T

Sift4G

Benign

0.24

T;T

Polyphen

0.25

B;.

Vest4

0.21

MutPred

0.35

Gain of methylation at E1106 (P = 0.0043);Gain of methylation at E1106 (P = 0.0043);

MVP

0.86

ClinPred

0.043

GERP RS

-2.0

Varity_R

0.063

gMVP

0.21

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.

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