rs41281202

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBP6

The NM_000136.3(FANCC):​c.1156T>C​(p.Ser386Pro) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.000393 in 1,614,122 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0022 ( 1 hom., cov: 33)
Exomes 𝑓: 0.00021 ( 0 hom. )

Consequence

FANCC
NM_000136.3 missense, splice_region

Scores

1
9
9
Splicing: ADA: 0.004901
2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:8O:1

Conservation

PhyloP100: 4.65
Variant links:
Genes affected
FANCC (HGNC:3584): (FA complementation group C) 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 C. [provided by RefSeq, Jul 2008]
AOPEP (HGNC:1361): (aminopeptidase O (putative)) This gene encodes a member of the M1 zinc aminopeptidase family. The encoded protein is a zinc-dependent metallopeptidase that catalyzes the removal of an amino acid from the amino terminus of a protein or peptide. This protein may play a role in the generation of angiotensin IV. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Oct 2010]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.008559912).
BP6
Variant 9-95111636-A-G is Benign according to our data. Variant chr9-95111636-A-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 134296.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=5, Benign=3, Uncertain_significance=2, not_provided=1}.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
FANCCNM_000136.3 linkc.1156T>C p.Ser386Pro missense_variant, splice_region_variant Exon 13 of 15 ENST00000289081.8 NP_000127.2 Q00597A0A024R9N2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
FANCCENST00000289081.8 linkc.1156T>C p.Ser386Pro missense_variant, splice_region_variant Exon 13 of 15 1 NM_000136.3 ENSP00000289081.3 Q00597

Frequencies

GnomAD3 genomes
AF:
0.00214
AC:
326
AN:
152208
Hom.:
1
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00741
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000851
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.000958
GnomAD3 exomes
AF:
0.000553
AC:
139
AN:
251354
Hom.:
1
AF XY:
0.000405
AC XY:
55
AN XY:
135876
show subpopulations
Gnomad AFR exome
AF:
0.00757
Gnomad AMR exome
AF:
0.000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000653
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.000326
GnomAD4 exome
AF:
0.000210
AC:
307
AN:
1461796
Hom.:
0
Cov.:
37
AF XY:
0.000190
AC XY:
138
AN XY:
727190
show subpopulations
Gnomad4 AFR exome
AF:
0.00771
Gnomad4 AMR exome
AF:
0.000335
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000464
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
8.99e-7
Gnomad4 OTH exome
AF:
0.000414
GnomAD4 genome
AF:
0.00215
AC:
328
AN:
152326
Hom.:
1
Cov.:
33
AF XY:
0.00193
AC XY:
144
AN XY:
74478
show subpopulations
Gnomad4 AFR
AF:
0.00743
Gnomad4 AMR
AF:
0.000850
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000414
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.000948
Alfa
AF:
0.000324
Hom.:
1
Bravo
AF:
0.00231
ESP6500AA
AF:
0.00613
AC:
27
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000675
AC:
82

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:2Benign:8Other:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not specified Benign:3Other:1
Sep 19, 2013
ITMI
Significance: not provided
Review Status: no classification provided
Collection Method: reference population

- -

Aug 15, 2014
GeneDx
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Feb 01, 2019
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

Variant summary: FANCC c.1156T>C (p.Ser386Pro) results in a non-conservative amino acid change in the encoded protein sequence. Four of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 0.00074 in 277128 control chromosomes, predominantly at a frequency of 0.0079 within the African subpopulation in the gnomAD database, including 1 homozygotes. The observed variant frequency within African control individuals in the gnomAD database is approximately 4.5 fold of the estimated maximal expected allele frequency for a pathogenic variant in FANCC causing Fanconi Anemia Group C phenotype (0.0018), strongly suggesting that the variant is a benign polymorphism found primarily in populations of African origin. To our knowledge, no occurrence of c.1156T>C in individuals affected with Fanconi Anemia Group C and no experimental evidence demonstrating its impact on protein function have been reported. Four ClinVar submissions from clinical diagnostic laboratories (evaluation after 2014) cite the variant as likely benign (3x) and once as uncertain significance. Based on the evidence outlined above, the variant was classified as likely benign. -

Aug 27, 2021
Genetic Services Laboratory, University of Chicago
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not provided Uncertain:1Benign:1
Apr 29, 2021
Quest Diagnostics Nichols Institute San Juan Capistrano
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Jun 04, 2015
Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Fanconi anemia Benign:2
Jan 23, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Feb 25, 2021
Sema4, Sema4
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: curation

- -

Fanconi anemia complementation group C Uncertain:1
Jul 16, 2018
Baylor Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant was determined to be of uncertain significance according to ACMG Guidelines, 2015 [PMID:25741868]. -

Fanconi anemia complementation group A Benign:1
May 28, 2019
Mendelics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Hereditary cancer-predisposing syndrome Benign:1
Mar 25, 2019
Ambry Genetics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.098
BayesDel_addAF
Benign
-0.069
T
BayesDel_noAF
Uncertain
0.13
CADD
Benign
23
DANN
Uncertain
1.0
DEOGEN2
Benign
0.42
T;T;T
Eigen
Uncertain
0.45
Eigen_PC
Uncertain
0.35
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Benign
0.72
.;T;T
M_CAP
Benign
0.043
D
MetaRNN
Benign
0.0086
T;T;T
MetaSVM
Benign
-0.51
T
MutationAssessor
Uncertain
2.3
M;M;.
PrimateAI
Benign
0.40
T
PROVEAN
Uncertain
-3.6
D;D;.
REVEL
Uncertain
0.43
Sift
Uncertain
0.018
D;D;.
Sift4G
Uncertain
0.045
D;D;D
Polyphen
1.0
D;D;.
Vest4
0.75
MVP
0.89
MPC
0.38
ClinPred
0.030
T
GERP RS
4.4
Varity_R
0.62
gMVP
0.39

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.0049
dbscSNV1_RF
Benign
0.074
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs41281202; hg19: chr9-97873918; API