Genetic Variant NM_001733.7:c.281C>G (chr12-7090199-G-C) – ACMG Classification: Likely_benign (-3 pts)

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 1P and 4B. PP3BS2

The NM_001733.7(C1R):c.281C>G(p.Ser94Cys) variant causes a missense change. The variant allele was found at a frequency of 0.000036 in 749,074 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000027 ( 0 hom. )

Consequence

C1R
NM_001733.7 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 6.61

Publications

0 publications found

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]

C1R links:

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]

C1RL links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 ACMG points.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.75

BS2

High AC in GnomAd4 at 11 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001733.7. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	C1R	NM_001733.7	MANE Select	c.281C>G	p.Ser94Cys	missense	Exon 3 of 11	NP_001724.4	A0A3B3ISR2
	C1R	NM_001354346.2		c.323C>G	p.Ser108Cys	missense	Exon 3 of 11	NP_001341275.1	B4DPQ0

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
C1R	ENST00000647956.2	MANE Select	c.281C>G	p.Ser94Cys	missense	Exon 3 of 11	ENSP00000497341.1	A0A3B3ISR2
C1R	ENST00000540610.5	TSL:4	c.-35C>G		5_prime_UTR_premature_start_codon_gain	Exon 2 of 4	ENSP00000439223.1	F5H3A3
C1R	ENST00000541042.5	TSL:5	c.-35C>G		5_prime_UTR_premature_start_codon_gain	Exon 3 of 4	ENSP00000441601.1	F5GWL0

Frequencies

GnomAD3 genomes

AF:

0.0000723

AC:

AN:

152196

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.000132

Gnomad OTH

AF:

0.000478

GnomAD2 exomes

AF:

0.00

AC:

AN:

198044

AF XY:

0.00

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS 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:

0.0000268

AC:

AN:

596878

Hom.:

Cov.:

AF XY:

0.0000309

AC XY:

AN XY:

323630

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

17068

American (AMR)

AF:

0.00

AC:

AN:

38728

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

20460

East Asian (EAS)

AF:

0.00

AC:

AN:

34712

South Asian (SAS)

AF:

0.00

AC:

AN:

65616

European-Finnish (FIN)

AF:

0.00

AC:

AN:

51202

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4108

European-Non Finnish (NFE)

AF:

0.0000480

AC:

AN:

333026

Other (OTH)

AF:

0.00

AC:

AN:

31958

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.478

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000723

AC:

AN:

152196

Hom.:

Cov.:

AF XY:

0.0000538

AC XY:

AN XY:

74360

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41446

American (AMR)

AF:

0.00

AC:

AN:

15282

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5186

South Asian (SAS)

AF:

0.00

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10630

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.000132

AC:

AN:

68032

Other (OTH)

AF:

0.000478

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.493

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.0000564

Hom.:

Bravo

AF:

0.0000869

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000121

AC:

ExAC

AF:

0.00000831

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.38

BayesDel_addAF

Benign

-0.015

BayesDel_noAF

Benign

-0.26

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.017

Eigen

Uncertain

0.62

Eigen_PC

Uncertain

0.60

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.86

MetaRNN

Pathogenic

0.75

MetaSVM

Benign

-0.65

PhyloP100

6.6

PrimateAI

Benign

0.40

PROVEAN

Uncertain

-3.0

REVEL

Uncertain

0.40

Sift

Uncertain

0.0010

Sift4G

Pathogenic

0.0010

Polyphen

1.0

Vest4

0.59

MVP

0.46

ClinPred

0.99

GERP RS

5.3

gMVP

0.51

Mutation Taster

=81/19

polymorphism

(source)

Splicing

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over