Variant #0000674989 (NC_000011.9:g.57379205C>T, NM_000062.2:c.1045C>T (SERPING1))

Individual ID 00265316
Chromosome 11
Allele Paternal (confirmed)
Affects function (as reported) Probably does not affect function
Affects function (by curator) Probably does not affect function
Classification method -
Clinical classification VUS
DNA change (genomic) (Relative to hg19 / GRCh37) g.57379205C>T
DNA change (hg38) g.57611732C>T
Published as c.[5C>T];[1045C>T]
ISCN -
DB-ID SERPING1_000128 See all 3 reported entries
Variant remarks Compound heterozygous proband presenting with a HAE of the intermediate type.
Both variants are in trans, c.5C>T maternal allele/c.1045C>T paternal allele, both parents are asymptomatic, suggesting that p.(Leu349Phe) does not impair C1-INH expression and function.
Leu327 is a conserved position among serpins (76%); Leu327 is located at the C-terminus of sheet s2B, within the breach functional domain. Leu327 packs against conserved positions in s3A (Tyr272, Trp277), and possibly makes H-bonding with P14 in serpin-protease associated structure.
Leu to Phe transition introduces an aromatic side chain that likely generates clashes between Leu327 and Trp277 that could disturb the conformation of S3A and thereby disrupt the RCL insertion into the shutter region.
p.Leu349Phe intolerant by SIFT, probably damaging by PolyPhen, disease causing by MutationTaster. Proposed ACMG criteria PS3, PP3, PM3.
Submitted to ClinVar as likely benign by InVitae, San Francisco CA, without any reference to bioinformatic support, and as VUS by PreventionGenetics Marshfield WI.
Reference Journal: Ponard 2019
ClinVar ID ClinVar-SCV002200196.2
dbSNP ID rs141075266
Origin Germline
Segregation no
Frequency 0.00006281 (gnomAD v3)
Re-site -
VIP -
Methylation -
Average frequency (gnomAD v.2.1.1) 6.0E-5 View details
Owner Johan den Dunnen
Database submission license Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 InternationalCreative Commons License
Created by Johan den Dunnen
Date created 2020-07-27 12:33:38 +02:00 (CEST)
Date last edited 2025-02-20 12:05:08 +01:00 (CET)
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Variant on transcripts


Gene     

AscendingTranscript     

Affects function     

Exon     

DNA change (cDNA)     

RNA change     

Protein     
SERPING1 NM_000062.2 -?/-? 7 c.1045C>T r.(?) p.(Leu349Phe)



Screenings


AscendingScreening ID     

Template     

Technique     

Tissue     

Remarks     

Genes screened     

Variants found     

Owner     
0000266435 DNA SEQ blood - SERPING1 2 Christian Drouet


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