Genetic Variant C6:p.Arg596Gly (chr5-41159152-G-C) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_000065.5(C6):c.1786C>G(p.Arg596Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,478 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R596Q) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

C6
NM_000065.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 2.46

Publications

4 publications found

Variant links:

Genes affected

C6 (HGNC:1339): (complement C6) This gene encodes a component of the complement cascade. The encoded protein is part of the membrane attack complex that can be incorporated into the cell membrane and cause cell lysis. Mutations in this gene are associated with complement component-6 deficiency. Transcript variants encoding the same protein have been described.[provided by RefSeq, Nov 2012]

C6 Gene-Disease associations (from GenCC):

complement component 6 deficiency
Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics

C6 links:

ENSG00000307984 (HGNC:):

ENSG00000307984 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.19315746).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
C6	NM_000065.5 link	c.1786C>G	p.Arg596Gly	missense_variant	Exon 12 of 18	ENST00000337836.10	NP_000056.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein
C6	ENST00000337836.10 link	c.1786C>G	p.Arg596Gly	missense_variant	Exon 12 of 18	1	NM_000065.5	ENSP00000338861.5
C6	ENST00000263413.7 link	c.1786C>G	p.Arg596Gly	missense_variant	Exon 12 of 18	1		ENSP00000263413.3
ENSG00000307984	ENST00000830208.1 link	n.55-2161G>C		intron_variant	Intron 1 of 1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461478

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727034

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33458

American (AMR)

AF:

0.00

AC:

AN:

44682

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26116

East Asian (EAS)

AF:

0.00

AC:

AN:

39686

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53408

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5762

European-Non Finnish (NFE)

AF:

0.00000180

AC:

AN:

1111736

Other (OTH)

AF:

0.00

AC:

AN:

60372

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

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

Cov.:

Alfa

AF:

0.00

Hom.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.071

BayesDel_addAF

Benign

-0.25

BayesDel_noAF

Benign

-0.59

CADD

Benign

(source)

DANN

Benign

0.93

DEOGEN2

Benign

0.027

T;T

Eigen

Benign

-0.72

Eigen_PC

Benign

-0.76

FATHMM_MKL

Benign

0.43

LIST_S2

Benign

0.0

.;T

M_CAP

Benign

0.0080

MetaRNN

Benign

0.19

T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.75

N;N

PhyloP100

2.5

PrimateAI

Benign

0.19

PROVEAN

Benign

-0.070

N;N

REVEL

Benign

0.12

Sift

Benign

0.41

T;T

Sift4G

Benign

0.43

T;T

Vest4

0.29

ClinPred

0.36

GERP RS

3.7

Varity_R

0.31

gMVP

0.42

Mutation Taster

=79/21

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over