chr1-22659513-G-A
Variant summary
Our verdict is Likely benign. Variant got -5 ACMG points: 2P and 7B. PM2BP4_StrongBP6_ModerateBP7
The NM_001378156.1(C1QB):c.51G>A(p.Leu17=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,836 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 Likely benign (★).
Frequency
Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000021 ( 0 hom. )
Consequence
C1QB
NM_001378156.1 synonymous
NM_001378156.1 synonymous
Scores
2
Clinical Significance
Conservation
PhyloP100: -0.530
Genes affected
C1QB (HGNC:1242): (complement C1q B chain) This gene encodes the B-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]
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ACMG classification
Classification made for transcript
Verdict is Likely_benign. Variant got -5 ACMG points.
PM2
?
Very rare variant in population databases, with high coverage;
BP4
?
Computational evidence support a benign effect (BayesDel_noAF=-0.87).
BP6
?
Variant 1-22659513-G-A is Benign according to our data. Variant chr1-22659513-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 1934332.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
?
Synonymous conserved (PhyloP=-0.53 with no splicing effect.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
C1QB | NM_001378156.1 | c.51G>A | p.Leu17= | synonymous_variant | 2/3 | ENST00000509305.6 | |
C1QB | NM_000491.5 | c.57G>A | p.Leu19= | synonymous_variant | 2/3 | ||
C1QB | NM_001371184.3 | c.51G>A | p.Leu17= | synonymous_variant | 3/4 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
C1QB | ENST00000509305.6 | c.51G>A | p.Leu17= | synonymous_variant | 2/3 | 1 | NM_001378156.1 | P2 |
Frequencies
GnomAD3 genomes ? Cov.: 32
GnomAD3 genomes
?
Cov.:
32
GnomAD3 exomes AF: 0.00000398 AC: 1AN: 251350Hom.: 0 AF XY: 0.00 AC XY: 0AN XY: 135850
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GnomAD4 exome AF: 0.00000205 AC: 3AN: 1461836Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 727224
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GnomAD4 genome ? Cov.: 32
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ClinVar
Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
not provided Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Invitae | Sep 16, 2022 | - - |
Computational scores
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Name
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BayesDel_noAF
Benign
Cadd
Benign
Dann
Benign
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at