NM_001079866.2(BCS1L):c.768C>G (p.Leu256=) AND GRACILE syndrome

Germline classification:: Uncertain significance (2 submissions)
Last evaluated:: Jan 12, 2018
Review status:: 1 star out of maximum of 4 stars
criteria provided, single submitter

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:: RCV000394839.7

Allele description [Variation Report for NM_001079866.2(BCS1L):c.768C>G (p.Leu256=)]

NM_001079866.2(BCS1L):c.768C>G (p.Leu256=)

Gene:

BCS1L:BCS1 homolog, ubiquinol-cytochrome c reductase complex chaperone [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

2q35

Genomic location:

Preferred name:

NM_001079866.2(BCS1L):c.768C>G (p.Leu256=)

HGVS:

NC_000002.12:g.218662558C>G
NG_008018.1:g.7903C>G
NG_033099.1:g.1983G>C
NM_001079866.2:c.768C>GMANE SELECT
NM_001257342.2:c.768C>G
NM_001257343.2:c.768C>G
NM_001257344.2:c.768C>G
NM_001318836.2:c.408C>G
NM_001320717.2:c.768C>G
NM_001371443.1:c.768C>G
NM_001371444.1:c.768C>G
NM_001371446.1:c.768C>G
NM_001371447.1:c.768C>G
NM_001371448.1:c.768C>G
NM_001371449.1:c.768C>G
NM_001371450.1:c.768C>G
NM_001371451.1:c.408C>G
NM_001371452.1:c.267C>G
NM_001371453.1:c.267C>G
NM_001371454.1:c.267C>G
NM_001371455.1:c.267C>G
NM_001371456.1:c.267C>G
NM_001374085.1:c.768C>G
NM_001374086.1:c.267C>G
NM_004328.5:c.768C>G
NP_001073335.1:p.Leu256=
NP_001244271.1:p.Leu256=
NP_001244272.1:p.Leu256=
NP_001244273.1:p.Leu256=
NP_001305765.1:p.Leu136=
NP_001307646.1:p.Leu256=
NP_001358372.1:p.Leu256=
NP_001358373.1:p.Leu256=
NP_001358375.1:p.Leu256=
NP_001358376.1:p.Leu256=
NP_001358377.1:p.Leu256=
NP_001358378.1:p.Leu256=
NP_001358379.1:p.Leu256=
NP_001358380.1:p.Leu136=
NP_001358381.1:p.Leu89=
NP_001358382.1:p.Leu89=
NP_001358383.1:p.Leu89=
NP_001358384.1:p.Leu89=
NP_001358385.1:p.Leu89=
NP_001361014.1:p.Leu256=
NP_001361015.1:p.Leu89=
NP_004319.1:p.Leu256=
NP_004319.1:p.Leu256=
LRG_539t1:c.768C>G
LRG_539:g.7903C>G
LRG_539p1:p.Leu256=
NC_000002.11:g.219527281C>G
NM_004328.4:c.768C>G
NR_163955.1:n.1775C>G

Links:

dbSNP: rs781666793

NCBI 1000 Genomes Browser:

rs781666793

Molecular consequence:

NR_163955.1:n.1775C>G - non-coding transcript variant - [Sequence Ontology: SO:0001619]
NM_001079866.2:c.768C>G - synonymous variant - [Sequence Ontology: SO:0001819]
NM_001257342.2:c.768C>G - synonymous variant - [Sequence Ontology: SO:0001819]
NM_001257343.2:c.768C>G - synonymous variant - [Sequence Ontology: SO:0001819]
NM_001257344.2:c.768C>G - synonymous variant - [Sequence Ontology: SO:0001819]
NM_001318836.2:c.408C>G - synonymous variant - [Sequence Ontology: SO:0001819]
NM_001320717.2:c.768C>G - synonymous variant - [Sequence Ontology: SO:0001819]
NM_001371443.1:c.768C>G - synonymous variant - [Sequence Ontology: SO:0001819]
NM_001371444.1:c.768C>G - synonymous variant - [Sequence Ontology: SO:0001819]
NM_001371446.1:c.768C>G - synonymous variant - [Sequence Ontology: SO:0001819]
NM_001371447.1:c.768C>G - synonymous variant - [Sequence Ontology: SO:0001819]
NM_001371448.1:c.768C>G - synonymous variant - [Sequence Ontology: SO:0001819]
NM_001371449.1:c.768C>G - synonymous variant - [Sequence Ontology: SO:0001819]
NM_001371450.1:c.768C>G - synonymous variant - [Sequence Ontology: SO:0001819]
NM_001371451.1:c.408C>G - synonymous variant - [Sequence Ontology: SO:0001819]
NM_001371452.1:c.267C>G - synonymous variant - [Sequence Ontology: SO:0001819]
NM_001371453.1:c.267C>G - synonymous variant - [Sequence Ontology: SO:0001819]
NM_001371454.1:c.267C>G - synonymous variant - [Sequence Ontology: SO:0001819]
NM_001371455.1:c.267C>G - synonymous variant - [Sequence Ontology: SO:0001819]
NM_001371456.1:c.267C>G - synonymous variant - [Sequence Ontology: SO:0001819]
NM_001374085.1:c.768C>G - synonymous variant - [Sequence Ontology: SO:0001819]
NM_001374086.1:c.267C>G - synonymous variant - [Sequence Ontology: SO:0001819]
NM_004328.5:c.768C>G - synonymous variant - [Sequence Ontology: SO:0001819]

Condition(s)

Name:: GRACILE syndrome (FLNMS)
Synonyms:: FELLMAN SYNDROME; FINNISH LETHAL NEONATAL METABOLIC SYNDROME
Identifiers:: MONDO: MONDO:0011308; MedGen: C1864002; Orphanet: 53693; OMIM: 603358

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV000427442	Illumina Laboratory Services, Illumina	criteria provided, single submitter (ICSL Variant Classification Criteria 13 December 2019)	Uncertain significance (Jan 12, 2018)	germline	clinical testing	Citation Link,
SCV002076352	Natera, Inc.	no assertion criteria provided	Likely benign (Aug 5, 2020)	germline	clinical testing

Submission Accession

Submitter

Review Status
(Assertion method)

Clinical Significance
(Last evaluated)

Origin

Method

Citations

SCV000427442

Illumina Laboratory Services, Illumina

criteria provided, single submitter

(ICSL Variant Classification Criteria 13 December 2019)

Uncertain significance
(Jan 12, 2018)

germline

clinical testing

Citation Link,

SCV002076352

Natera, Inc.

no assertion criteria provided

Likely benign
(Aug 5, 2020)

germline

clinical testing

Help

Summary from all submissions

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

Details of each submission

From Illumina Laboratory Services, Illumina, SCV000427442.3

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

Description

This 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, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease.

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

From Natera, Inc., SCV002076352.1

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

Last Updated: May 16, 2025

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