rs142217479

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBP6

The NM_000135.4(FANCA):​c.1904C>T​(p.Ala635Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000613 in 1,548,994 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. A635T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00035 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000029 ( 0 hom. )

Consequence

FANCA
NM_000135.4 missense

Scores

3
15

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4B:3

Conservation

PhyloP100: 0.949

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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.011919618).
BP6
Variant 16-89773381-G-A is Benign according to our data. Variant chr16-89773381-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 526402.

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

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
FANCA
NM_000135.4
MANE Select
c.1904C>Tp.Ala635Val
missense
Exon 22 of 43NP_000126.2O15360-1
FANCA
NM_001286167.3
c.1904C>Tp.Ala635Val
missense
Exon 22 of 43NP_001273096.1O15360-3

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
FANCA
ENST00000389301.8
TSL:1 MANE Select
c.1904C>Tp.Ala635Val
missense
Exon 22 of 43ENSP00000373952.3O15360-1
FANCA
ENST00000567205.2
TSL:1
n.1904C>T
non_coding_transcript_exon
Exon 22 of 27ENSP00000457027.2H3BT53
FANCA
ENST00000564475.6
TSL:2
c.1904C>Tp.Ala635Val
missense
Exon 22 of 42ENSP00000454977.2H3BNS0

Frequencies

GnomAD3 genomes
AF:
0.000355
AC:
54
AN:
152176
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00123
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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:
0.00
Gnomad OTH
AF:
0.000478
GnomAD2 exomes
AF:
0.0000898
AC:
14
AN:
155938
AF XY:
0.0000732
show subpopulations
Gnomad AFR exome
AF:
0.00149
Gnomad AMR exome
AF:
0.0000404
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000294
AC:
41
AN:
1396700
Hom.:
0
Cov.:
30
AF XY:
0.0000290
AC XY:
20
AN XY:
689026
show subpopulations
African (AFR)
AF:
0.00108
AC:
34
AN:
31546
American (AMR)
AF:
0.0000280
AC:
1
AN:
35700
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25170
East Asian (EAS)
AF:
0.00
AC:
0
AN:
35708
South Asian (SAS)
AF:
0.00
AC:
0
AN:
79202
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
49014
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5690
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1076750
Other (OTH)
AF:
0.000104
AC:
6
AN:
57920
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.479
Heterozygous variant carriers
0
3
5
8
10
13
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome 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
GnomAD4 genome
AF:
0.000355
AC:
54
AN:
152294
Hom.:
0
Cov.:
32
AF XY:
0.000295
AC XY:
22
AN XY:
74462
show subpopulations
African (AFR)
AF:
0.00123
AC:
51
AN:
41556
American (AMR)
AF:
0.000131
AC:
2
AN:
15290
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5182
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10618
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68026
Other (OTH)
AF:
0.000473
AC:
1
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.510
Heterozygous variant carriers
0
3
6
10
13
16
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:
0.000615
Hom.:
0
Bravo
AF:
0.000332
ESP6500AA
AF:
0.000750
AC:
3
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000119
AC:
6

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
2
1
Fanconi anemia complementation group A (3)
-
1
1
Fanconi anemia (2)
-
-
1
FANCA-related disorder (1)
-
1
-
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.083
BayesDel_addAF
Benign
-0.34
T
BayesDel_noAF
Benign
-0.29
CADD
Benign
7.8
DANN
Uncertain
0.99
DEOGEN2
Benign
0.13
T
Eigen
Benign
-0.88
Eigen_PC
Benign
-0.95
FATHMM_MKL
Benign
0.091
N
LIST_S2
Benign
0.61
T
M_CAP
Uncertain
0.097
D
MetaRNN
Benign
0.012
T
MetaSVM
Benign
-0.54
T
MutationAssessor
Benign
1.2
L
PhyloP100
0.95
PrimateAI
Benign
0.30
T
PROVEAN
Benign
-1.5
N
REVEL
Benign
0.13
Sift
Benign
0.076
T
Sift4G
Uncertain
0.053
T
Polyphen
0.024
B
Vest4
0.14
MVP
0.93
ClinPred
0.024
T
GERP RS
1.5
RBP_binding_hub_radar
0.97
RBP_regulation_power_radar
2.0
Varity_R
0.024
gMVP
0.34
Mutation Taster
=97/3
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: rs142217479; hg19: chr16-89839789; API