12-7089713-G-A
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Variant summary
Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2
The NM_001733.7(C1R):c.445C>T(p.Arg149Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000525 in 780,708 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: 𝑓 0.00012 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000037 ( 0 hom. )
Consequence
C1R
NM_001733.7 missense
NM_001733.7 missense
Scores
5
12
Clinical Significance
Conservation
PhyloP100: 0.730
Genes affected
C1R (HGNC:1246): (complement C1r) This gene encodes a member of the peptidase S1 protein family. The encoded protein is a proteolytic subunit in the complement system C1 complex. The complement system acts as a mediator in the innate immune response by ultimately triggering phagocytosis, inflammation, and rupturing the bacterial cell wall. Mutations in this gene are associated with Ehlers-Danlos Syndrome. [provided by RefSeq, Dec 2018]
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ACMG classification
Classification made for transcript
Verdict is Likely_benign. Variant got -6 ACMG points.
BP4
Computational evidence support a benign effect (MetaRNN=0.08917856).
BS2
High AC in GnomAd4 at 18 AD gene.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
C1R | NM_001733.7 | c.445C>T | p.Arg149Trp | missense_variant | 4/11 | ENST00000647956.2 | |
C1R | NM_001354346.2 | c.487C>T | p.Arg163Trp | missense_variant | 4/11 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
C1R | ENST00000647956.2 | c.445C>T | p.Arg149Trp | missense_variant | 4/11 | NM_001733.7 | P1 |
Frequencies
GnomAD3 genomes AF: 0.000118 AC: 18AN: 152240Hom.: 0 Cov.: 32
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GnomAD3 exomes AF: 0.0000683 AC: 17AN: 248956Hom.: 0 AF XY: 0.0000444 AC XY: 6AN XY: 135054
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GnomAD4 exome AF: 0.0000366 AC: 23AN: 628468Hom.: 0 Cov.: 0 AF XY: 0.0000234 AC XY: 8AN XY: 342360
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GnomAD4 genome AF: 0.000118 AC: 18AN: 152240Hom.: 0 Cov.: 32 AF XY: 0.000121 AC XY: 9AN XY: 74386
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ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Ehlers-Danlos syndrome, periodontal type 1 Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Center for Genomics, Ann and Robert H. Lurie Children's Hospital of Chicago | Mar 30, 2021 | C1R NM_001733.5 exon 4 p.Arg149Trp (c.445C>T): This variant has not been reported in the literature but is present in 0.05% (13/24174) of African alleles in the Genome Aggregation Database (https://gnomad.broadinstitute.org/variant/12-7242309-G-A?dataset=gnomad_r2_1). Evolutionary conservation suggests that this variant may not impact the protein; computational predictive tools for this variant are unclear. In summary, data on this variant is insufficient for disease classification. Therefore, the clinical significance of this variant is uncertain. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
BayesDel_addAF
Benign
T
BayesDel_noAF
Benign
CADD
Uncertain
DANN
Uncertain
DEOGEN2
Benign
.;.;T;T;T;.;T;T
Eigen
Benign
Eigen_PC
Benign
FATHMM_MKL
Benign
N
LIST_S2
Benign
T;.;T;T;T;T;T;T
MetaRNN
Benign
T;T;T;T;T;T;T;T
MetaSVM
Uncertain
D
MutationTaster
Benign
N;N;N;N
PrimateAI
Benign
T
PROVEAN
Uncertain
.;.;D;D;D;D;D;N
REVEL
Uncertain
Sift
Uncertain
.;.;D;D;T;D;T;D
Sift4G
Benign
.;.;T;.;.;.;.;D
Polyphen
0.99, 0.90
.;.;D;P;.;.;.;.
Vest4
0.22, 0.23, 0.24
MVP
0.87
ClinPred
T
GERP RS
gMVP
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at