Variant #0000499268 (NC_000011.9:g.57381923G>A, NM_000062.2:c.1372G>A (SERPING1))

Individual ID 00245431
Chromosome 11
Allele Unknown
Affects function (as reported) Affects function
Affects function (by curator) Affects function
Classification method ACMG
Clinical classification pathogenic
DNA change (genomic) (Relative to hg19 / GRCh37) g.57381923G>A
DNA change (hg38) g.57614450G>A
Published as 16764G>A (traditional)
ISCN -
DB-ID SERPING1_000179
Variant remarks Recurrent variant.
Italian patient samples exhibit a high level of circulating cleaved HK species, with 31.6% to 48.41% of total HK, consistent with an involvement of kallikrein-kinin system.
A real HAE-II variant. Aligned to P9 in A1AT. Ala436 is a RCL position of the hinge region whose side chain becomes buried upon RCL incorporation. p.(Ala458Thr), unlike similar variants of other serpins, is not cleavable by target proteases. By increasing the interaction with Lys307 or Lys306, the RCL of p.(Ala458Thr) packs even better in the loop-inserted latent structure than in that of the wild-type residue. Subsequently it favours overinsertion up to P9 with release of s1C from the β-sheet C likely to prevent RCL cleavage; this process prones p.(Ala458Thr) to oligomerize.
Similar with the p.(Gly373Arg) of SERPINA1, a functionally inactive variant of AAT : Laffranchi et al. 2019; PLoS ONE 14(1): e0206955.
Introduced in ClinVar as pathogenic by OMIM.
Introduced in the Lund SERPING1 database http://structure.bmc.lu.se/idbase/SERPING1base/
Reference PubMed: Levy 1990 PubMed: Davis 1992PubMed: Aulak 1993 Journal: Pappalardo 2008 Journal: Suffritti 2014 Journal: Bafunno 2014 Journal: Loules 2018 Journal: Ponard 2019 Journal: Förster 2021
ClinVar ID ClinVar-SCV000024317.3
dbSNP ID rs121907947
Origin Germline
Segregation yes
Frequency -
Re-site -
VIP -
Methylation -
Average frequency (gnomAD v.2.1.1) Retrieve
Owner Christian Drouet
Database submission license Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 InternationalCreative Commons License
Created by Christian Drouet
Date created 2019-07-04 16:36:05 +02:00 (CEST)
Date last edited 2025-02-10 21:39:42 +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 +/+ 8 c.1372G>A r.(?) p.(Ala458Thr)



Screenings


AscendingScreening ID     

Template     

Technique     

Tissue     

Remarks     

Genes screened     

Variants found     

Owner     
0000246543 DNA SEQ blood - SERPING1 1 Christian Drouet


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