12-7089713-G-A

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

Scores

5
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.730
Variant links:
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]
C1RL (HGNC:21265): (complement C1r subcomponent like) Predicted to enable serine-type endopeptidase activity. Predicted to be involved in zymogen activation. Located in extracellular exosome. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

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
C1RNM_001733.7 linkuse as main transcriptc.445C>T p.Arg149Trp missense_variant 4/11 ENST00000647956.2
C1RNM_001354346.2 linkuse as main transcriptc.487C>T p.Arg163Trp missense_variant 4/11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
C1RENST00000647956.2 linkuse as main transcriptc.445C>T p.Arg149Trp missense_variant 4/11 NM_001733.7 P1

Frequencies

GnomAD3 genomes
AF:
0.000118
AC:
18
AN:
152240
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000338
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000683
AC:
17
AN:
248956
Hom.:
0
AF XY:
0.0000444
AC XY:
6
AN XY:
135054
show subpopulations
Gnomad AFR exome
AF:
0.000646
Gnomad AMR exome
AF:
0.0000580
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000654
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000266
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000366
AC:
23
AN:
628468
Hom.:
0
Cov.:
0
AF XY:
0.0000234
AC XY:
8
AN XY:
342360
show subpopulations
Gnomad4 AFR exome
AF:
0.000452
Gnomad4 AMR exome
AF:
0.0000457
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000430
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000143
Gnomad4 OTH exome
AF:
0.000121
GnomAD4 genome
AF:
0.000118
AC:
18
AN:
152240
Hom.:
0
Cov.:
32
AF XY:
0.000121
AC XY:
9
AN XY:
74386
show subpopulations
Gnomad4 AFR
AF:
0.000338
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000199
Hom.:
0
Bravo
AF:
0.000189
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.000753
AC:
3
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000910
AC:
11
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

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 submitterclinical testingCenter for Genomics, Ann and Robert H. Lurie Children's Hospital of ChicagoMar 30, 2021C1R 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: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.071
BayesDel_addAF
Benign
-0.17
T
BayesDel_noAF
Benign
-0.11
CADD
Uncertain
23
DANN
Uncertain
1.0
DEOGEN2
Benign
0.069
.;.;T;T;T;.;T;T
Eigen
Benign
-0.24
Eigen_PC
Benign
-0.37
FATHMM_MKL
Benign
0.49
N
LIST_S2
Benign
0.63
T;.;T;T;T;T;T;T
MetaRNN
Benign
0.089
T;T;T;T;T;T;T;T
MetaSVM
Uncertain
0.62
D
MutationTaster
Benign
1.0
N;N;N;N
PrimateAI
Benign
0.30
T
PROVEAN
Uncertain
-2.6
.;.;D;D;D;D;D;N
REVEL
Uncertain
0.33
Sift
Uncertain
0.014
.;.;D;D;T;D;T;D
Sift4G
Benign
0.18
.;.;T;.;.;.;.;D
Polyphen
0.99, 0.90
.;.;D;P;.;.;.;.
Vest4
0.22, 0.23, 0.24
MVP
0.87
ClinPred
0.10
T
GERP RS
4.4
gMVP
0.34

Splicing

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: rs373462345; hg19: chr12-7242309; COSMIC: COSV56926165; COSMIC: COSV56926165; API