16-89764930-T-G

Variant names:

Variant summary

Our verdict is Pathogenic. The variant received 14 ACMG points: 14P and 0B. PM1PM2PP3_ModeratePP5_Very_Strong

The NM_000135.4(FANCA):c.2738A>C(p.His913Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000186 in 1,614,068 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

FANCA
NM_000135.4 missense

Scores

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:7O:1

Conservation

PhyloP100: 1.36

Publications

5 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: Pathogenic. The variant received 14 ACMG points.

PM1

In a hotspot region, there are 3 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 4 benign, 19 uncertain in NM_000135.4

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.939

PP5

Variant 16-89764930-T-G is Pathogenic according to our data. Variant chr16-89764930-T-G is described in ClinVar as Pathogenic/Likely_pathogenic. ClinVar VariationId is 555969.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Variant Effect in Transcripts

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

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	FANCA	NM_000135.4	MANE Select	c.2738A>C	p.His913Pro	missense	Exon 28 of 43	NP_000126.2
	FANCA	NM_001286167.3		c.2738A>C	p.His913Pro	missense	Exon 28 of 43	NP_001273096.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
FANCA	ENST00000389301.8	TSL:1 MANE Select	c.2738A>C	p.His913Pro	missense	Exon 28 of 43	ENSP00000373952.3
FANCA	ENST00000564475.6	TSL:2	c.2738A>C	p.His913Pro	missense	Exon 28 of 42	ENSP00000454977.2
FANCA	ENST00000568369.6	TSL:2	c.2738A>C	p.His913Pro	missense	Exon 28 of 43	ENSP00000456829.1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152204

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461864

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

727234

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53416

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000180

AC:

AN:

1111992

Other (OTH)

AF:

0.00

AC:

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.550

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152204

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74346

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41458

American (AMR)

AF:

0.00

AC:

AN:

15280

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5192

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10612

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68040

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.725

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:

0.00

Hom.:

Bravo

AF:

0.00000756

ClinVar

Significance: Pathogenic/Likely pathogenic

Submissions summary: Pathogenic:7Other:1

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Fanconi anemia complementation group A

Pathogenic:5Other:1

Jan 04, 2018

Counsyl

Significance:Likely pathogenic

Review Status:no assertion criteria provided

Collection Method:clinical testing

This submission and the accompanying classification are no longer maintained by the submitter. For more information on current observations and classification, please contact variantquestions@myriad.com.

May 15, 2025

GeneKor MSA

Significance:Pathogenic

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant is a single nucleotide substitution at position 2738 of the FANCA gene, resulting in the replacement of histidine with proline at position 913 of the FANCA protein (p.His913Pro). This specific variant has been reported in patients with Fanconi anemia (FA) (PMID:29098742, 29269525). It is listed in population databases (rs1302083447, gnomAD frequency:0.007%) and in the ClinVar database (VCV000555969.19).n silico prediction algorithms suggest that this missense change may affect the function or structure of the protein, and these predictions have been experimentally confirmed.Based on this evidence, the variant is classified as pathogenic.

Jul 02, 2018

Molecular Diagnostics Laboratory, M Health Fairview: University of Minnesota

Significance:Likely pathogenic

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Jun 25, 2024

Fulgent Genetics, Fulgent Genetics

Significance:Likely pathogenic

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Mar 03, 2024

Baylor Genetics

Significance:Pathogenic

Review Status:criteria provided, single submitter

Collection Method:clinical testing

GeneReviews

Significance:not provided

Review Status:no classification provided

Collection Method:literature only

Associated with slower hematologic disease progression

Fanconi anemia

Pathogenic:1

Jan 24, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Pathogenic

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces histidine, which is basic and polar, with proline, which is neutral and non-polar, at codon 913 of the FANCA protein (p.His913Pro). This variant is present in population databases (no rsID available, gnomAD 0.007%). This missense change has been observed in individuals with Fanconi anemia (PMID: 29098742, 29269525). ClinVar contains an entry for this variant (Variation ID: 555969). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt FANCA protein function with a negative predictive value of 80%. Experimental studies have shown that this missense change affects FANCA function (PMID: 29269525). For these reasons, this variant has been classified as Pathogenic.

not provided

Pathogenic:1

Jul 12, 2019

Genetic Services Laboratory, University of Chicago

Significance:Pathogenic

Review Status:criteria provided, single submitter

Collection Method:clinical testing

DNA sequence analysis of the FANCA gene demonstrated a sequence change, c.2621G>C in exon 28, which results in an amino acid change, p.Arg874Thr. The p.Arg874Thr change affects a highly conserved amino acid residue located in a domain of the FANCA protein that is not known to be functional. The p.Arg874Thr substitution appears to be deleterious using several in-silico pathogenicity prediction tools (SIFT, PolyPhen2, CADD, REVEL, in silico splice prediction programs). This sequence change is absent from large population databases such as ExAC and gnomAD. The p.Arg874Thr amino acid change occurs in a region of the FANCA gene where other missense sequence changes have been described in patients with FANCA-related disorders (PMIDs: 15643609, 24116929). This sequence change was identified with another likely pathogenic FANCA variant in a patient.

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.24

BayesDel_addAF

Uncertain

0.15

BayesDel_noAF

Uncertain

-0.020

CADD

Benign

(source)

DANN

Benign

0.83

DEOGEN2

Benign

0.23

Eigen

Benign

-0.71

Eigen_PC

Benign

-0.74

FATHMM_MKL

Benign

0.74

LIST_S2

Benign

0.64

M_CAP

Uncertain

0.12

MetaRNN

Pathogenic

0.94

MetaSVM

Benign

-0.61

MutationAssessor

Benign

0.69

PhyloP100

1.4

PrimateAI

Benign

0.31

PROVEAN

Benign

-1.4

REVEL

Uncertain

0.55

Sift

Benign

0.036

Sift4G

Uncertain

0.035

Polyphen

0.16

Vest4

0.79

MutPred

0.79

Gain of loop (P = 0.0045)

MVP

0.91

ClinPred

0.10

GERP RS

3.0

Varity_R

0.13

gMVP

0.50

Mutation Taster

=35/65

disease causing (ClinVar)

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over