rs115856189

Variant summary

Our verdict is Benign. The variant received -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BS1BS2

The NM_000135.4(FANCA):​c.21G>T​(p.Pro7Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00103 in 1,526,976 control chromosomes in the GnomAD database, including 14 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). Synonymous variant affecting the same amino acid position (i.e. P7P) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0057 ( 6 hom., cov: 34)
Exomes 𝑓: 0.00052 ( 8 hom. )

Consequence

FANCA
NM_000135.4 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: -0.333

Publications

2 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 -19 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.45).
BP6
Variant 16-89816595-C-A is Benign according to our data. Variant chr16-89816595-C-A is described in ClinVar as Benign. ClinVar VariationId is 321376.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-0.333 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00566 (861/152224) while in subpopulation AFR AF = 0.02 (832/41564). AF 95% confidence interval is 0.0189. There are 6 homozygotes in GnomAd4. There are 401 alleles in the male GnomAd4 subpopulation. Median coverage is 34. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 6 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
FANCANM_000135.4 linkc.21G>T p.Pro7Pro synonymous_variant Exon 1 of 43 ENST00000389301.8 NP_000126.2 O15360-1
FANCANM_001286167.3 linkc.21G>T p.Pro7Pro synonymous_variant Exon 1 of 43 NP_001273096.1 O15360-3
FANCANM_001018112.3 linkc.21G>T p.Pro7Pro synonymous_variant Exon 1 of 11 NP_001018122.1 O15360-2
FANCANM_001351830.2 linkc.21G>T p.Pro7Pro synonymous_variant Exon 1 of 10 NP_001338759.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
FANCAENST00000389301.8 linkc.21G>T p.Pro7Pro synonymous_variant Exon 1 of 43 1 NM_000135.4 ENSP00000373952.3 O15360-1

Frequencies

GnomAD3 genomes
AF:
0.00561
AC:
853
AN:
152116
Hom.:
6
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.0199
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00151
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:
0.0000294
Gnomad OTH
AF:
0.00191
GnomAD2 exomes
AF:
0.000624
AC:
77
AN:
123420
AF XY:
0.000494
show subpopulations
Gnomad AFR exome
AF:
0.0161
Gnomad AMR exome
AF:
0.000798
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000409
Gnomad OTH exome
AF:
0.000271
GnomAD4 exome
AF:
0.000521
AC:
716
AN:
1374752
Hom.:
8
Cov.:
31
AF XY:
0.000427
AC XY:
290
AN XY:
679368
show subpopulations
African (AFR)
AF:
0.0206
AC:
601
AN:
29228
American (AMR)
AF:
0.000982
AC:
35
AN:
35648
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
24730
East Asian (EAS)
AF:
0.00
AC:
0
AN:
34278
South Asian (SAS)
AF:
0.0000128
AC:
1
AN:
78212
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
33680
Middle Eastern (MID)
AF:
0.000226
AC:
1
AN:
4432
European-Non Finnish (NFE)
AF:
0.00000835
AC:
9
AN:
1077234
Other (OTH)
AF:
0.00120
AC:
69
AN:
57310
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.471
Heterozygous variant carriers
0
34
69
103
138
172
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:
0.00566
AC:
861
AN:
152224
Hom.:
6
Cov.:
34
AF XY:
0.00539
AC XY:
401
AN XY:
74426
show subpopulations
African (AFR)
AF:
0.0200
AC:
832
AN:
41564
American (AMR)
AF:
0.00150
AC:
23
AN:
15302
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5164
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10586
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
292
European-Non Finnish (NFE)
AF:
0.0000294
AC:
2
AN:
67994
Other (OTH)
AF:
0.00189
AC:
4
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.492
Heterozygous variant carriers
0
41
82
124
165
206
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
20
40
60
80
100
<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:
0.00121
Hom.:
1
Bravo
AF:
0.00642
Asia WGS
AF:
0.00203
AC:
7
AN:
3462

ClinVar

Significance: Benign
Submissions summary: Benign:6
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Fanconi anemia complementation group A Benign:3
Jan 12, 2018
Illumina Laboratory Services, Illumina
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

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

- -

Sep 16, 2020
Natera, Inc.
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

not specified Benign:2
Jul 09, 2021
Quest Diagnostics Nichols Institute San Juan Capistrano
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Mar 29, 2018
Genetic Services Laboratory, University of Chicago
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Fanconi anemia Benign:1
Jan 28, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: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
-0.45
CADD
Benign
7.0
DANN
Benign
0.80
PhyloP100
-0.33
PromoterAI
0.039
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Mutation Taster
=98/2
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: rs115856189; hg19: chr16-89883003; API