NM_000138.5(FBN1):c.1879C>T (p.Arg627Cys) AND not provided

Germline classification:: Pathogenic (3 submissions)
Last evaluated:: Jul 13, 2022
Review status:: 2 stars out of maximum of 4 stars
criteria provided, multiple submitters, no conflicts

Somatic classification of clinical impact:: None
Review status:: (0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided

Somatic classification of oncogenicity:: None
Review status:: (0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided

Record status:: current
Accession:: RCV001556720.26

Allele description [Variation Report for NM_000138.5(FBN1):c.1879C>T (p.Arg627Cys)]

NM_000138.5(FBN1):c.1879C>T (p.Arg627Cys)

Gene:

FBN1:fibrillin 1 [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

15q21.1

Genomic location:

Preferred name:

NM_000138.5(FBN1):c.1879C>T (p.Arg627Cys)

HGVS:

NC_000015.10:g.48505106G>A
NG_008805.2:g.145683C>T
NM_000138.5:c.1879C>TMANE SELECT
NP_000129.3:p.Arg627Cys
NP_000129.3:p.Arg627Cys
LRG_778t1:c.1879C>T
LRG_778:g.145683C>T
LRG_778p1:p.Arg627Cys
NC_000015.9:g.48797303G>A
NM_000138.4:c.1879C>T

Protein change:

R627C

Links:

dbSNP: rs727503057

NCBI 1000 Genomes Browser:

rs727503057

Molecular consequence:

NM_000138.5:c.1879C>T - missense variant - [Sequence Ontology: SO:0001583]

Functional consequence:

Unknown function

Observations:

Condition(s)

Synonyms:: none provided; RECLASSIFIED - ADRA2C POLYMORPHISM; RECLASSIFIED - ADRB1 POLYMORPHISM
Identifiers:: MedGen: C3661900

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV001778351	GeneDx	criteria provided, single submitter (GeneDx Variant Classification Process June 2021)	Pathogenic (Feb 24, 2022)	germline	clinical testing	Citation Link,
SCV001961509	CeGaT Center for Human Genetics Tuebingen	criteria provided, single submitter (CeGaT Center For Human Genetics Tuebingen Variant Classification Criteria Version 2)	Pathogenic (Sep 1, 2021)	germline	clinical testing	Citation Link,
SCV005197890	Clinical Genetics Laboratory, Skane University Hospital Lund	criteria provided, single submitter (ACMG Guidelines, 2015)	Pathogenic (Jul 13, 2022)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]

Submission Accession

Submitter

Review Status
(Assertion method)

Clinical Significance
(Last evaluated)

Origin

Method

Citations

SCV001778351

GeneDx

criteria provided, single submitter

(GeneDx Variant Classification Process June 2021)

Pathogenic
(Feb 24, 2022)

germline

clinical testing

Citation Link,

SCV001961509

CeGaT Center for Human Genetics Tuebingen

criteria provided, single submitter

(CeGaT Center For Human Genetics Tuebingen Variant Classification Criteria Version 2)

Pathogenic
(Sep 1, 2021)

germline

clinical testing

Citation Link,

SCV005197890

Clinical Genetics Laboratory, Skane University Hospital Lund

criteria provided, single submitter

(ACMG Guidelines, 2015)

Pathogenic
(Jul 13, 2022)

germline

clinical testing

PubMed (1)
[See all records that cite this PMID]

Help

Summary from all submissions

Ethnicity	Origin	Affected	Individuals	Families	Chromosomes tested	Number Tested	Family history	Method
not provided	germline	yes	1	not provided	not provided	not provided	not provided	clinical testing

Citations

PubMed

Standards and guidelines for the interpretation of sequence variants: a joint consensus recommendation of the American College of Medical Genetics and Genomics and the Association for Molecular Pathology.

Richards S, Aziz N, Bale S, Bick D, Das S, Gastier-Foster J, Grody WW, Hegde M, Lyon E, Spector E, Voelkerding K, Rehm HL; ACMG Laboratory Quality Assurance Committee.

Genet Med. 2015 May;17(5):405-24. doi: 10.1038/gim.2015.30. Epub 2015 Mar 5.

PubMed [citation]

PMID:: 25741868
PMCID:: PMC4544753

Details of each submission

From GeneDx, SCV001778351.3

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	not provided

Description

Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Introduces a new cysteine residue within a calcium-binding EGF-like domain of the FBN1 gene, which may affect disulfide bonding and is predicted to alter the structure and function of the protein; cysteine substitutions in the calcium-binding EGF-like domains represent the majority of pathogenic missense changes associated with FBN1-related disorders (Collod-Beroud et al., 2003).; Published functional studies demonstrate a damaging effect as fibrillin protein harboring p.(R627C) is more susceptible to proteolytic degradation by a variety of proteases (Vollbrandt et al., 2004; Kirschner et al., 2011); This variant is associated with the following publications: (PMID: 23684891, 27647783, 15161917, 32431097, 8004112, 17679947, 25644172, 19293843, 12161601, 17418587, 24941995, 31055806, 32209317, 33083483, 12938084, 33059708, 33576469, 21784848, 17503327, 16220557)

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	yes	not provided	not provided	not provided		not provided	not provided	not provided	not provided

From CeGaT Center for Human Genetics Tuebingen, SCV001961509.21

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	1	not provided	not provided	clinical testing	not provided

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	yes	not provided	not provided	not provided		1	not provided	not provided	not provided

From Clinical Genetics Laboratory, Skane University Hospital Lund, SCV005197890.1

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (1)

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	yes	not provided	not provided	not provided		not provided	not provided	not provided	not provided

Last Updated: Jan 13, 2025

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