rs189841793

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The ENST00000566889.5(FANCA):​n.649C>T variant causes a non coding transcript exon change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000804 in 1,602,378 control chromosomes in the GnomAD database, including 6 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0012 ( 2 hom., cov: 31)
Exomes 𝑓: 0.00077 ( 4 hom. )

Consequence

FANCA
ENST00000566889.5 non_coding_transcript_exon

Scores

2

Clinical Significance

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

Conservation

PhyloP100: -0.473

Publications

4 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -13 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.87).
BP6
Variant 16-89815999-G-A is Benign according to our data. Variant chr16-89815999-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 135542.
BS1
Variant frequency is greater than expected in population amr. GnomAd4 allele frequency = 0.00117 (178/152366) while in subpopulation AMR AF = 0.00464 (71/15312). AF 95% confidence interval is 0.00377. There are 2 homozygotes in GnomAd4. There are 99 alleles in the male GnomAd4 subpopulation. Median coverage is 31. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 2 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
FANCANM_000135.4 linkc.80-13C>T intron_variant Intron 1 of 42 ENST00000389301.8 NP_000126.2 O15360-1
FANCANM_001286167.3 linkc.80-13C>T intron_variant Intron 1 of 42 NP_001273096.1 O15360-3
FANCANM_001018112.3 linkc.80-13C>T intron_variant Intron 1 of 10 NP_001018122.1 O15360-2
FANCANM_001351830.2 linkc.80-13C>T intron_variant Intron 1 of 9 NP_001338759.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
FANCAENST00000389301.8 linkc.80-13C>T intron_variant Intron 1 of 42 1 NM_000135.4 ENSP00000373952.3 O15360-1

Frequencies

GnomAD3 genomes
AF:
0.00118
AC:
180
AN:
152248
Hom.:
2
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.000386
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00464
Gnomad ASJ
AF:
0.000288
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.0348
Gnomad NFE
AF:
0.00113
Gnomad OTH
AF:
0.00143
GnomAD2 exomes
AF:
0.000964
AC:
242
AN:
251132
AF XY:
0.00116
show subpopulations
Gnomad AFR exome
AF:
0.000431
Gnomad AMR exome
AF:
0.00136
Gnomad ASJ exome
AF:
0.000298
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.000185
Gnomad NFE exome
AF:
0.00136
Gnomad OTH exome
AF:
0.00163
GnomAD4 exome
AF:
0.000766
AC:
1110
AN:
1450012
Hom.:
4
Cov.:
27
AF XY:
0.000828
AC XY:
598
AN XY:
722176
show subpopulations
African (AFR)
AF:
0.00111
AC:
37
AN:
33210
American (AMR)
AF:
0.00125
AC:
56
AN:
44696
Ashkenazi Jewish (ASJ)
AF:
0.000192
AC:
5
AN:
26036
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39630
South Asian (SAS)
AF:
0.000360
AC:
31
AN:
86038
European-Finnish (FIN)
AF:
0.000206
AC:
11
AN:
53292
Middle Eastern (MID)
AF:
0.00853
AC:
49
AN:
5742
European-Non Finnish (NFE)
AF:
0.000770
AC:
848
AN:
1101418
Other (OTH)
AF:
0.00122
AC:
73
AN:
59950
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.499
Heterozygous variant carriers
0
55
110
164
219
274
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
24
48
72
96
120
<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:
0.00117
AC:
178
AN:
152366
Hom.:
2
Cov.:
31
AF XY:
0.00133
AC XY:
99
AN XY:
74510
show subpopulations
African (AFR)
AF:
0.000385
AC:
16
AN:
41600
American (AMR)
AF:
0.00464
AC:
71
AN:
15312
Ashkenazi Jewish (ASJ)
AF:
0.000288
AC:
1
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5172
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10630
Middle Eastern (MID)
AF:
0.0340
AC:
10
AN:
294
European-Non Finnish (NFE)
AF:
0.00112
AC:
76
AN:
68034
Other (OTH)
AF:
0.00142
AC:
3
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.496
Heterozygous variant carriers
0
9
19
28
38
47
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.000859
Hom.:
0
Bravo
AF:
0.000986
Asia WGS
AF:
0.000577
AC:
2
AN:
3478

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:5Other:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Fanconi anemia complementation group A Uncertain:1Benign:1
Apr 27, 2017
Illumina Laboratory Services, Illumina
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). Publications were found based on this search. However, the evidence from the literature, in combination with allele frequency data from public databases where available, was not sufficient to rule this variant in or out of causing disease. Therefore, this variant is classified as a variant of unknown significance. -

Jul 07, 2023
KCCC/NGS Laboratory, Kuwait Cancer Control Center
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Fanconi anemia Benign:2
Mar 18, 2021
Sema4, Sema4
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:curation

- -

Jan 23, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not specified Benign:1Other:1
Sep 19, 2013
ITMI
Significance:not provided
Review Status:no classification provided
Collection Method:reference population

- -

-
PreventionGenetics, part of Exact Sciences
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Benign:1
Apr 28, 2021
GeneDx
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.87
CADD
Benign
0.98
DANN
Benign
0.92
PhyloP100
-0.47
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.2
Mutation Taster
=100/0
polymorphism

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

Other links and lift over

dbSNP: rs189841793; hg19: chr16-89882407; COSMIC: COSV104699341; API