chr1-22644043-C-A

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 2P and 12B. PM2BP4_StrongBP6_Very_Strong

The NM_172369.5(C1QC):​c.20C>A​(p.Ser7Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000371 in 1,588,330 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00037 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00037 ( 1 hom. )

Consequence

C1QC
NM_172369.5 missense

Scores

2
17

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -0.0930
Variant links:
Genes affected
C1QC (HGNC:1245): (complement C1q C chain) This gene encodes the C-chain polypeptide of serum complement subcomponent C1q, which associates with C1r and C1s to yield the first component of the serum complement system. C1q is composed of 18 polypeptide chains which include 6 A-chains, 6 B-chains, and 6 C-chains. Each chain contains an N-terminal collagen-like region and a C-terminal C1q globular domain. C1q deficiency is associated with lupus erythematosus and glomerulonephritis. [provided by RefSeq, Dec 2016]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.013367504).
BP6
Variant 1-22644043-C-A is Benign according to our data. Variant chr1-22644043-C-A is described in ClinVar as [Likely_benign]. Clinvar id is 775131.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
C1QCNM_172369.5 linkuse as main transcriptc.20C>A p.Ser7Tyr missense_variant 2/3 ENST00000374640.9 NP_758957.2
C1QCNM_001114101.3 linkuse as main transcriptc.20C>A p.Ser7Tyr missense_variant 2/3 NP_001107573.1
C1QCNM_001347619.2 linkuse as main transcriptc.20C>A p.Ser7Tyr missense_variant 2/3 NP_001334548.1
C1QCNM_001347620.2 linkuse as main transcriptc.-87+329C>A intron_variant NP_001334549.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
C1QCENST00000374640.9 linkuse as main transcriptc.20C>A p.Ser7Tyr missense_variant 2/31 NM_172369.5 ENSP00000363771 P1

Frequencies

GnomAD3 genomes
AF:
0.000368
AC:
56
AN:
152144
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000524
Gnomad ASJ
AF:
0.00346
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.0000942
Gnomad MID
AF:
0.00633
Gnomad NFE
AF:
0.000456
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.000564
AC:
115
AN:
204020
Hom.:
1
AF XY:
0.000667
AC XY:
73
AN XY:
109372
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000659
Gnomad ASJ exome
AF:
0.00427
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000157
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000555
Gnomad OTH exome
AF:
0.000786
GnomAD4 exome
AF:
0.000371
AC:
533
AN:
1436068
Hom.:
1
Cov.:
31
AF XY:
0.000370
AC XY:
263
AN XY:
711450
show subpopulations
Gnomad4 AFR exome
AF:
0.0000901
Gnomad4 AMR exome
AF:
0.000647
Gnomad4 ASJ exome
AF:
0.00402
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000110
Gnomad4 FIN exome
AF:
0.0000195
Gnomad4 NFE exome
AF:
0.000312
Gnomad4 OTH exome
AF:
0.000672
GnomAD4 genome
AF:
0.000374
AC:
57
AN:
152262
Hom.:
0
Cov.:
32
AF XY:
0.000363
AC XY:
27
AN XY:
74446
show subpopulations
Gnomad4 AFR
AF:
0.0000481
Gnomad4 AMR
AF:
0.000523
Gnomad4 ASJ
AF:
0.00346
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.0000942
Gnomad4 NFE
AF:
0.000456
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.000769
Hom.:
0
Bravo
AF:
0.000363
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000233
AC:
2
ExAC
AF:
0.000507
AC:
61

ClinVar

Significance: Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Likely benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpNov 05, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.084
BayesDel_addAF
Benign
-0.26
T
BayesDel_noAF
Benign
-0.24
CADD
Benign
2.0
DANN
Benign
0.90
DEOGEN2
Benign
0.11
T;T;T
Eigen
Benign
-1.0
Eigen_PC
Benign
-1.1
FATHMM_MKL
Benign
0.037
N
LIST_S2
Benign
0.50
.;.;T
M_CAP
Uncertain
0.22
D
MetaRNN
Benign
0.013
T;T;T
MetaSVM
Benign
-0.45
T
MutationAssessor
Benign
1.4
L;L;L
MutationTaster
Benign
1.0
N;N;N
PrimateAI
Benign
0.32
T
PROVEAN
Benign
0.17
N;N;N
REVEL
Uncertain
0.30
Sift
Benign
0.032
D;D;D
Sift4G
Benign
0.13
T;T;T
Polyphen
0.41
B;B;B
Vest4
0.24
MVP
0.77
MPC
0.44
ClinPred
0.015
T
GERP RS
1.0
Varity_R
0.035
gMVP
0.47

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs377290060; hg19: chr1-22970536; API