chr5-93593787-T-C

Variant names:

• chr5-93593787-T-C
• rs1060499589
• NM_005654.6:c.1217T>C

Variant summary

Our verdict is Uncertain significance. The variant received 5 ACMG points: 5P and 0B. PM2 PP2 PP3_Moderate

The NM_005654.6(NR2F1):​c.1217T>C​(p.Met406Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (no stars).

• Frequency: Genomes: not found (cov: 32)
• Consequence: NR2F1 NM_005654.6 missense
• Clinical Significance: Uncertain significance no assertion criteria provided U:1
• Conservation: PhyloP100: 8.02
• Publications: 3 publications found

Genes affected

NR2F1 (HGNC:7975): (nuclear receptor subfamily 2 group F member 1) The protein encoded by this gene is a nuclear hormone receptor and transcriptional regulator. The encoded protein acts as a homodimer and binds to 5'-AGGTCA-3' repeats. Defects in this gene are a cause of Bosch-Boonstra optic atrophy syndrome (BBOAS). [provided by RefSeq, Apr 2014]

NR2F1 Gene-Disease associations (from GenCC):

• Bosch-Boonstra-Schaaf optic atrophy syndrome

  Inheritance: AD, AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, G2P, ClinGen, Ambry Genetics

ACMG classification

Our verdict: Uncertain_significance. The variant received 5 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in the NR2F1 gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 51 curated pathogenic missense variants (we use a threshold of 10). The gene has 7 curated benign missense variants. Gene score misZ: 4.1652 (above the threshold of 3.09). Trascript score misZ: 4.6855 (above the threshold of 3.09). GenCC associations: The gene is linked to Bosch-Boonstra-Schaaf optic atrophy syndrome.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.918

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NR2F1	NM_005654.6	c.1217T>C	p.Met406Thr	missense_variant	Exon 3 of 3	ENST00000327111.8	NP_005645.1
NR2F1	NM_001410754.1	c.767T>C	p.Met256Thr	missense_variant	Exon 3 of 3		NP_001397683.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NR2F1	ENST00000327111.8	c.1217T>C	p.Met406Thr	missense_variant	Exon 3 of 3	1	NM_005654.6	ENSP00000325819.3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: no assertion criteria provided

Submissions by phenotype

Bosch-Boonstra-Schaaf optic atrophy syndrome Uncertain:1

Feb 23, 2016

Division of Human Genetics, Children's Hospital of Philadelphia

Significance: Uncertain significance

Review Status: no assertion criteria provided

Collection Method: research

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	1.0
BayesDel_addAF	Pathogenic	0.35	D
BayesDel_noAF	Pathogenic	0.27
CADD	Pathogenic	29
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.62	D;D;.;T
Eigen	Pathogenic	0.98
Eigen_PC	Pathogenic	0.94
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Pathogenic	0.98	.;D;D;D
M_CAP	Benign	0.067	D
MetaRNN	Pathogenic	0.92	D;D;D;D
MetaSVM	Uncertain	0.092	D
MutationAssessor	Pathogenic	3.4	M;M;.;.
PhyloP100		8.0
PrimateAI	Pathogenic	0.90	D
PROVEAN	Uncertain	-4.1	.;D;.;.
REVEL	Pathogenic	0.66
Sift	Pathogenic	0.0	.;D;.;.
Sift4G	Pathogenic	0.0010	.;D;.;D
Polyphen		0.99	D;D;.;.
Vest4		0.91, 0.91
MutPred		0.81		Loss of stability (P = 0.0113);Loss of stability (P = 0.0113);.;.;
MVP		0.92
ClinPred		1.0	D
GERP RS		6.2
Varity_R		0.76
gMVP		0.98
Mutation Taster		=12/88	disease causing

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.0		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs1060499589; hg19: chr5-92929493;