11-57597721-G-C

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_StrongBP6_ModerateBS1

The NM_000062.3(SERPING1):​c.-24G>C variant causes a splice region, 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000289 in 152,412 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.00028 ( 0 hom., cov: 29)
Exomes 𝑓: 0.0014 ( 0 hom. )

Consequence

SERPING1
NM_000062.3 splice_region, 5_prime_UTR

Scores

2
Splicing: ADA: 0.0008980
2

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.431
Variant links:
Genes affected
SERPING1 (HGNC:1228): (serpin family G member 1) This gene encodes a highly glycosylated plasma protein involved in the regulation of the complement cascade. Its encoded protein, C1 inhibitor, inhibits activated C1r and C1s of the first complement component and thus regulates complement activation. It is synthesized in the liver, and its deficiency is associated with hereditary angioneurotic oedema (HANE). Alternative splicing results in multiple transcript variants encoding the same isoform. [provided by RefSeq, May 2020]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.49).
BP6
Variant 11-57597721-G-C is Benign according to our data. Variant chr11-57597721-G-C is described in ClinVar as [Benign]. Clinvar id is 305014.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr11-57597721-G-C is described in Lovd as [Likely_benign].
BS1
Variant frequency is greater than expected in population eas. gnomad4 allele frequency = 0.000284 (43/151672) while in subpopulation EAS AF= 0.00488 (25/5118). AF 95% confidence interval is 0.0034. There are 0 homozygotes in gnomad4. There are 25 alleles in male gnomad4 subpopulation. Median coverage is 29. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SERPING1NM_000062.3 linkuse as main transcriptc.-24G>C splice_region_variant, 5_prime_UTR_variant 1/8 ENST00000278407.9 NP_000053.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SERPING1ENST00000278407.9 linkuse as main transcriptc.-24G>C splice_region_variant, 5_prime_UTR_variant 1/81 NM_000062.3 ENSP00000278407 P2P05155-1

Frequencies

GnomAD3 genomes
AF:
0.000284
AC:
43
AN:
151550
Hom.:
0
Cov.:
29
show subpopulations
Gnomad AFR
AF:
0.0000969
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00487
Gnomad SAS
AF:
0.00251
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.000478
GnomAD4 exome
AF:
0.00135
AC:
1
AN:
740
Hom.:
0
Cov.:
0
AF XY:
0.00195
AC XY:
1
AN XY:
514
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0417
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.000284
AC:
43
AN:
151672
Hom.:
0
Cov.:
29
AF XY:
0.000337
AC XY:
25
AN XY:
74124
show subpopulations
Gnomad4 AFR
AF:
0.0000966
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00488
Gnomad4 SAS
AF:
0.00251
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.000139
Hom.:
0
Bravo
AF:
0.000461
Asia WGS
AF:
0.00491
AC:
17
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Hereditary angioedema type 1 Benign:1
Benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 13, 2018This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.49
CADD
Benign
13
DANN
Benign
0.80

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00090
dbscSNV1_RF
Benign
0.034
SpliceAI score (max)
0.12
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: rs112290300; hg19: chr11-57365194; API