16-89738916-C-T

Variant names:

Variant summary

Our verdict is The variant received -9 classification points (ACMG Germline Pathogenicity v2019). BS2BP4BP6_Strong

The NM_000135.4(FANCA):c.4226G>A (p.Arg1409Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a cumulative frequency of 0.000421 (AC=680) in the gnomAD database across 1,614,234 control chromosomes, including 10 homozygotes. The grpmax filtering allele frequency (95% CI) is 0.00655. In-silico predictor (REVEL) classifies this variant as likely benign. Splicing prediction tools (SpliceAI) predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign/Likely Benign (★★). Other variants at the same amino acid position have been reported in ClinVar (not pathogenic): p.R1409P: Uncertain_significance (ClinVar VariationId 3339491, 1 star); p.R1409= (synonymous): Likely_benign (ClinVar VariationId 4022175, 1 star); p.R1409W: Conflicting_classifications_of_pathogenicity (ClinVar VariationId 408170)

Frequency

Genomes: 𝑓 0.00024 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00044 ( 10 hom. )

Consequence

FANCA
NM_000135.4 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4O:1

Conservation

PhyloP100: -2.06

Publications

3 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: Myriad Women's Health, G2P, Laboratory for Molecular Medicine, Labcorp Genetics (formerly Invitae), Ambry Genetics, ClinGen, PanelApp Australia, Natera
Fanconi anemia
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

FANCA links:

ZNF276 (HGNC:23330): (zinc finger protein 276) Enables sequence-specific double-stranded DNA binding activity. Predicted to be involved in regulation of transcription by RNA polymerase II. Located in kinetochore. [provided by Alliance of Genome Resources, Apr 2022]

ZNF276 links:

Genome browser will be placed here

new If you want to explore the variant's impact on the transcript NM_000135.4, check out the Mutation Effect Viewer. This is especially useful for frameshift variants or if you want to visualize the effect of exon loss / intron retention.

Classification according to ACMG Germline Pathogenicity v2019

Classification was made for transcript

Our verdict: Benign. The variant received -9 points.

BP4

Computational evidence supports benign — no pathogenic computational or splicing signal (BP4); Splicing verdict: benign (Strong).; Germline computational verdict: benign (Supporting).

BP6

ClinVar 2-star benign — strong (BP6); ClinVar germline classification: Benign/Likely Benign, 2 star(s).

BS2

≥2 homozygotes in gnomAD — observed in healthy adults (BS2); GnomAD homozygous count = 10.; Very high cumulative gnomAD AC = 680 (any gene).

Variant Effect in Transcripts

Automated classification analysis was done for transcript: NM_000135.4. You can select a different transcript below to see updated classification assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
FANCA	NM_000135.4	MANE Select	c.4226G>A	p.Arg1409Gln	missense	Exon 42 of 43	NP_000126.2	O15360-1
ZNF276	NM_001113525.2	MANE Select	c.*670C>T		3_prime_UTR	Exon 11 of 11	NP_001106997.1	Q8N554-1
FANCA	NM_001286167.3		c.4230G>A	p.Ser1410Ser	synonymous	Exon 42 of 43	NP_001273096.1	O15360-3

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
FANCA	ENST00000389301.8	TSL:1 MANE Select	c.4226G>A	p.Arg1409Gln	missense	Exon 42 of 43	ENSP00000373952.3	O15360-1
ZNF276	ENST00000443381.7	TSL:1 MANE Select	c.*670C>T		3_prime_UTR	Exon 11 of 11	ENSP00000415836.2	Q8N554-1
ZNF276	ENST00000289816.9	TSL:1	c.*670C>T		3_prime_UTR	Exon 11 of 11	ENSP00000289816.5	Q8N554-2

Frequencies

GnomAD3 genomes

AF:

0.000243

AC:

AN:

152238

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000723

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000192

Gnomad SAS

AF:

0.00621

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000867

AC:

218

AN:

251488

AF XY:

0.00131

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000352

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000440

AC:

643

AN:

1461878

Hom.:

Cov.:

AF XY:

0.000672

AC XY:

489

AN XY:

727244

show subpopulations

African (AFR)

AF:

0.0000896

AC:

AN:

33480

American (AMR)

AF:

0.0000447

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39700

South Asian (SAS)

AF:

0.00701

AC:

605

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53404

Middle Eastern (MID)

AF:

0.000173

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000162

AC:

AN:

1112012

Other (OTH)

AF:

0.000215

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.470

Heterozygous variant carriers

133

200

266

333

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

100

<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:

0.000243

AC:

AN:

152356

Hom.:

Cov.:

AF XY:

0.000389

AC XY:

AN XY:

74500

show subpopulations

African (AFR)

AF:

0.0000721

AC:

AN:

41594

American (AMR)

AF:

0.00

AC:

AN:

15304

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.000193

AC:

AN:

5188

South Asian (SAS)

AF:

0.00621

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10616

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000441

AC:

AN:

68034

Other (OTH)

AF:

0.00

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.503

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:

0.0000975

Hom.:

Bravo

AF:

0.0000718

Asia WGS

AF:

0.00231

AC:

AN:

3478

EpiCase

AF:

0.00

EpiControl

AF:

0.000178

Local populations

ToMMo 61KJPN (+60KJPN MNV)

AF:

0.000612

AC:

AN:

122478

ClinVar

ClinVar submissions

Significance:Benign/Likely benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

Fanconi anemia (2)

not provided (1)

not specified (2)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.073

BayesDel_addAF

Benign

-0.42

BayesDel_noAF

Benign

-0.37

CADD

Benign

6.0

(source)

DANN

Benign

0.93

DEOGEN2

Benign

0.093

Eigen

Benign

-1.3

Eigen_PC

Benign

-1.3

FATHMM_MKL

Benign

0.22

LIST_S2

Benign

0.77

M_CAP

Benign

0.013

MetaRNN

Benign

0.0054

MetaSVM

Benign

-0.92

MutationAssessor

Benign

0.17

PhyloP100

-2.1

PrimateAI

Benign

0.20

PROVEAN

Benign

-0.30

REVEL

Benign

0.20

Sift

Benign

0.56

Sift4G

Benign

0.37

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.028

gMVP

0.13

Mutation Taster

=98/2

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.050

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

Classification according to ACMG Germline Pathogenicity v2019

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

Local populations

ClinVar

Computational scores

Splicing

Publications

Other links and lift over