19-6679349-T-C

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_000064.4(C3):​c.4546+58A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.776 in 1,484,326 control chromosomes in the GnomAD database, including 449,094 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.80 ( 48732 hom., cov: 31)
Exomes 𝑓: 0.77 ( 400362 hom. )

Consequence

C3
NM_000064.4 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -0.581
Variant links:
Genes affected
C3 (HGNC:1318): (complement C3) Complement component C3 plays a central role in the activation of complement system. Its activation is required for both classical and alternative complement activation pathways. The encoded preproprotein is proteolytically processed to generate alpha and beta subunits that form the mature protein, which is then further processed to generate numerous peptide products. The C3a peptide, also known as the C3a anaphylatoxin, modulates inflammation and possesses antimicrobial activity. Mutations in this gene are associated with atypical hemolytic uremic syndrome and age-related macular degeneration in human patients. [provided by RefSeq, Nov 2015]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.87).
BP6
Variant 19-6679349-T-C is Benign according to our data. Variant chr19-6679349-T-C is described in ClinVar as [Benign]. Clinvar id is 1192668.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.883 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
C3NM_000064.4 linkuse as main transcriptc.4546+58A>G intron_variant ENST00000245907.11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
C3ENST00000245907.11 linkuse as main transcriptc.4546+58A>G intron_variant 1 NM_000064.4 P1

Frequencies

GnomAD3 genomes
AF:
0.797
AC:
121167
AN:
151956
Hom.:
48680
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.891
Gnomad AMI
AF:
0.724
Gnomad AMR
AF:
0.744
Gnomad ASJ
AF:
0.681
Gnomad EAS
AF:
0.703
Gnomad SAS
AF:
0.829
Gnomad FIN
AF:
0.725
Gnomad MID
AF:
0.766
Gnomad NFE
AF:
0.776
Gnomad OTH
AF:
0.798
GnomAD4 exome
AF:
0.774
AC:
1030735
AN:
1332252
Hom.:
400362
Cov.:
20
AF XY:
0.776
AC XY:
519644
AN XY:
669914
show subpopulations
Gnomad4 AFR exome
AF:
0.899
Gnomad4 AMR exome
AF:
0.702
Gnomad4 ASJ exome
AF:
0.683
Gnomad4 EAS exome
AF:
0.668
Gnomad4 SAS exome
AF:
0.831
Gnomad4 FIN exome
AF:
0.749
Gnomad4 NFE exome
AF:
0.776
Gnomad4 OTH exome
AF:
0.771
GnomAD4 genome
AF:
0.797
AC:
121276
AN:
152074
Hom.:
48732
Cov.:
31
AF XY:
0.792
AC XY:
58888
AN XY:
74324
show subpopulations
Gnomad4 AFR
AF:
0.891
Gnomad4 AMR
AF:
0.743
Gnomad4 ASJ
AF:
0.681
Gnomad4 EAS
AF:
0.702
Gnomad4 SAS
AF:
0.828
Gnomad4 FIN
AF:
0.725
Gnomad4 NFE
AF:
0.776
Gnomad4 OTH
AF:
0.799
Alfa
AF:
0.775
Hom.:
43055
Bravo
AF:
0.800
Asia WGS
AF:
0.775
AC:
2697
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Age related macular degeneration 9 Benign:1
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabJul 14, 2021- -
not provided Benign:1
Benign, criteria provided, single submitterclinical testingGeneDxNov 10, 2018- -
Complement component 3 deficiency Benign:1
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabJul 14, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.87
CADD
Benign
0.062
DANN
Benign
0.44

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

LitVar

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

Other links and lift over

dbSNP: rs344555; hg19: chr19-6679360; API