16-89816593-T-C

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 2P and 3B. PM2BP4_ModerateBP6

The NM_000135.4(FANCA):c.23A>G(p.Asn8Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000341 in 1,526,774 control chromosomes in the GnomAD database, including 1 homozygotes. 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 Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. N8K) has been classified as Benign.

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 34)

Exomes 𝑓: 0.000033 ( 1 hom. )

Consequence

FANCA
NM_000135.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:1

Conservation

PhyloP100: -4.84

Publications

1 publications found

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 Gene-Disease associations (from GenCC):

Fanconi anemia complementation group A
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Laboratory for Molecular Medicine, ClinGen, Ambry Genetics, Labcorp Genetics (formerly Invitae), Myriad Women’s Health, G2P
Fanconi anemia
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

FANCA links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.10909128).

BP6

Variant 16-89816593-T-C is Benign according to our data. Variant chr16-89816593-T-C is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 408164.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein
FANCA	NM_000135.4 link	c.23A>G	p.Asn8Ser	missense_variant	Exon 1 of 43	ENST00000389301.8	NP_000126.2
FANCA	NM_001286167.3 link	c.23A>G	p.Asn8Ser	missense_variant	Exon 1 of 43		NP_001273096.1
FANCA	NM_001018112.3 link	c.23A>G	p.Asn8Ser	missense_variant	Exon 1 of 11		NP_001018122.1
FANCA	NM_001351830.2 link	c.23A>G	p.Asn8Ser	missense_variant	Exon 1 of 10		NP_001338759.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FANCA	ENST00000389301.8 link	c.23A>G	p.Asn8Ser	missense_variant	Exon 1 of 43	1	NM_000135.4	ENSP00000373952.3

Frequencies

GnomAD3 genomes

AF:

0.0000395

AC:

AN:

151956

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

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:

0.0000736

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000323

AC:

AN:

123836

AF XY:

0.0000435

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000814

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000335

AC:

AN:

1374818

Hom.:

Cov.:

AF XY:

0.0000427

AC XY:

AN XY:

679430

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

29214

American (AMR)

AF:

0.00

AC:

AN:

35684

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

24712

East Asian (EAS)

AF:

0.00

AC:

AN:

34300

South Asian (SAS)

AF:

0.00

AC:

AN:

78228

European-Finnish (FIN)

AF:

0.00

AC:

AN:

33700

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4418

European-Non Finnish (NFE)

AF:

0.0000381

AC:

AN:

1077254

Other (OTH)

AF:

0.0000872

AC:

AN:

57308

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.414

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000395

AC:

AN:

151956

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74244

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41396

American (AMR)

AF:

0.0000655

AC:

AN:

15276

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5164

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10564

Middle Eastern (MID)

AF:

0.00

AC:

AN:

314

European-Non Finnish (NFE)

AF:

0.0000736

AC:

AN:

67944

Other (OTH)

AF:

0.00

AC:

AN:

2088

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.492

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.0000435

Hom.:

Bravo

AF:

0.0000227

ExAC

AF:

0.0000307

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:3Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Fanconi anemia

Uncertain:1Benign:1

Oct 28, 2019

Natera, Inc.

Significance:Uncertain significance

Review Status:no assertion criteria provided

Collection Method:clinical testing

Jun 25, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Fanconi anemia complementation group A

Uncertain:1

Feb 26, 2024

Fulgent Genetics, Fulgent Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

not provided

Uncertain:1

Nov 03, 2021

Institute for Clinical Genetics, University Hospital TU Dresden, University Hospital TU Dresden

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.063

BayesDel_addAF

Benign

-0.26

BayesDel_noAF

Benign

-0.43

CADD

Benign

0.0010

(source)

DANN

Benign

0.57

DEOGEN2

Benign

0.054

T;.;.;T;T;.

Eigen

Benign

-1.8

Eigen_PC

Benign

-1.8

FATHMM_MKL

Benign

0.022

LIST_S2

Benign

0.65

T;T;T;T;T;T

M_CAP

Pathogenic

0.59

MetaRNN

Benign

0.11

T;T;T;T;T;T

MetaSVM

Benign

-0.77

MutationAssessor

Benign

-0.34

N;N;N;.;.;.

PhyloP100

-4.8

PrimateAI

Uncertain

0.64

PROVEAN

Benign

0.33

N;N;N;N;N;N

REVEL

Benign

0.071

Sift

Benign

0.57

T;T;T;T;T;T

Sift4G

Benign

0.78

T;T;T;T;T;T

Vest4

0.095

ClinPred

0.055

GERP RS

-8.4

PromoterAI

0.12

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.030

gMVP

0.057

Mutation Taster

=99/1

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over