1-61082762-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001134673.4(NFIA):c.-30C>A variant causes a 5 prime UTR change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 28)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: NFIA NM_001134673.4 5_prime_UTR
• Scores: Splicing: ADA: 0.003580
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.39

Genes affected

NFIA (HGNC:7784): (nuclear factor I A) This gene encodes a member of the NF1 (nuclear factor 1) family of transcription factors. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2011]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.10633552).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
NFIA	NM_001134673.4	c.-30C>A		5_prime_UTR_variant	1/11	ENST00000403491.8
NFIA	NM_001145512.2	c.106C>A	p.Arg36Ser	missense_variant, splice_region_variant	2/12
NFIA	NM_005595.5	c.-30C>A		5_prime_UTR_variant	1/10
NFIA	NM_001145511.2	c.3+5134C>A		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
NFIA	ENST00000403491.8	c.-30C>A		5_prime_UTR_variant	1/11	1	NM_001134673.4	P1

Frequencies

GnomAD3 genomes Cov.: 28

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1401092 Hom.: 0 Cov.: 39 AF XY: 0.00 AC XY: 0 AN XY: 691304

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 28

Bravo AF: 0.00000756

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

GeneDx

Dec 15, 2022

Not observed at significant frequency in large population cohorts (gnomAD); Has not been previously published as pathogenic or benign to our knowledge; In silico analysis is inconclusive as to whether the variant alters gene splicing. In the absence of RNA/functional studies, the actual effect of this sequence change is unknown.; Reported using an alternate transcript of the gene -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Benign	-0.25	T
BayesDel_noAF	Benign	-0.59
Cadd	Benign	20
Dann	Benign	0.95
Eigen	Benign	-0.43
Eigen_PC	Benign	-0.31
FATHMM_MKL	Benign	0.48	N
LIST_S2	Benign	0.44	T
M_CAP	Benign	0.044	D
MetaRNN	Benign	0.11	T
MetaSVM	Benign	-1.1	T
MutationTaster	Benign	1.0	D;D;D;D;D;D;D;N
PrimateAI	Uncertain	0.76	T
PROVEAN	Benign	0.29	N
REVEL	Benign	0.11
Sift	Benign	1.0	T
Sift4G	Benign	1.0	T
Vest4		0.30
MutPred		0.13		Gain of glycosylation at R36 (P = 0.0035);
MVP		0.45
MPC		0.93
ClinPred		0.35	T
GERP RS		2.5
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
gMVP		0.38

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.0036
dbscSNV1_RF	Benign	0.076
SpliceAI score (max)		0.030		Details are displayed if max score is > 0.2

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

Publications

LitVar

Other links and lift over

dbSNP: rs937674643; hg19: chr1-61548434;