rs1348311492

Variant summary

Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PM1PP2PP3_Strong

The NM_000064.4(C3):​c.1921G>A​(p.Asp641Asn) variant causes a missense change. The variant allele was found at a frequency of 0.0000123 in 1,461,734 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. D641D) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

C3
NM_000064.4 missense

Scores

4
11
4

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.30
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 Likely_pathogenic. Variant got 7 ACMG points.

PM1
In a chain C3-beta-c (size 98) in uniprot entity CO3_HUMAN there are 4 pathogenic changes around while only 1 benign (80%) in NM_000064.4
PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), C3. . Gene score misZ 2.7489 (greater than the threshold 3.09). Trascript score misZ 4.431 (greater than threshold 3.09). GenCC has associacion of gene with complement component 3 deficiency, C3 glomerulonephritis, atypical hemolytic-uremic syndrome with C3 anomaly.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.963

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
C3NM_000064.4 linkuse as main transcriptc.1921G>A p.Asp641Asn missense_variant 15/41 ENST00000245907.11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
C3ENST00000245907.11 linkuse as main transcriptc.1921G>A p.Asp641Asn missense_variant 15/411 NM_000064.4 P1

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251168
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135836
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS 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:
0.0000123
AC:
18
AN:
1461734
Hom.:
0
Cov.:
33
AF XY:
0.0000138
AC XY:
10
AN XY:
727178
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000144
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
31
Alfa
AF:
0.0000312
Hom.:
0
Bravo
AF:
0.0000113

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Familial hemolytic anemia Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingDepartment of Genetic, Henri Mondor Hospital, Assistance Publique des Hôpitaux de ParisFeb 27, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.50
BayesDel_addAF
Benign
-0.12
T
BayesDel_noAF
Benign
-0.41
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.65
D
Eigen
Uncertain
0.47
Eigen_PC
Uncertain
0.33
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.94
D
M_CAP
Uncertain
0.090
D
MetaRNN
Pathogenic
0.96
D
MetaSVM
Benign
-0.64
T
MutationAssessor
Pathogenic
3.6
H
MutationTaster
Benign
1.0
D
PrimateAI
Uncertain
0.79
T
PROVEAN
Pathogenic
-4.5
D
REVEL
Uncertain
0.37
Sift
Uncertain
0.0020
D
Sift4G
Uncertain
0.014
D
Polyphen
1.0
D
Vest4
0.68
MutPred
0.82
Gain of loop (P = 0.1069);
MVP
0.67
MPC
1.5
ClinPred
0.99
D
GERP RS
4.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
2.1
Varity_R
0.73
gMVP
0.86

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.13
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: rs1348311492; hg19: chr19-6707865; COSMIC: COSV55581886; COSMIC: COSV55581886; API