NM_001190737.2:c.109C>T

Variant names:

• chr9-14307442-G-A
• rs1554709792
• NM_001190737.2:c.109C>T

Variant summary

Our verdict is Pathogenic. The variant received 18 ACMG points: 18P and 0B. PVS1 PM2 PP5_Very_Strong

The NM_001190737.2(NFIB):​c.109C>T​(p.Arg37*) variant causes a stop gained change. 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 Pathogenic (★★). Variant results in nonsense mediated mRNA decay.

• Frequency: Genomes: not found (cov: 31)
• Consequence: NFIB NM_001190737.2 stop_gained
• Clinical Significance: Pathogenic criteria provided, multiple submitters, no conflicts P:5
• Conservation: PhyloP100: 5.60
• Publications: 0 publications found

Genes affected

NFIB (HGNC:7785): (nuclear factor I B) Enables DNA-binding transcription activator activity, RNA polymerase II-specific; RNA polymerase II cis-regulatory region sequence-specific DNA binding activity; and transcription regulator inhibitor activity. Involved in brain development; negative regulation of DNA binding activity; and regulation of transcription by RNA polymerase II. Located in fibrillar center and nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

NFIB Gene-Disease associations (from GenCC):

• syndromic complex neurodevelopmental disorder

  Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
• macrocephaly, acquired, with impaired intellectual development

  Inheritance: AD Classification: STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, Illumina, G2P

ACMG classification

Our verdict: Pathogenic. The variant received 18 ACMG points.

• PVS1: Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 9-14307442-G-A is Pathogenic according to our data. Variant chr9-14307442-G-A is described in ClinVar as Pathogenic. ClinVar VariationId is 560024.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001190737.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NFIB	NM_001190737.2	MANE Select	c.109C>T	p.Arg37*	stop_gained	Exon 2 of 11	NP_001177666.1	O00712-5
	NFIB	NM_001369469.1		c.-36C>T		5_prime_UTR_premature_start_codon_gain	Exon 2 of 10	NP_001356398.1
	NFIB	NM_001369458.1		c.175C>T	p.Arg59*	stop_gained	Exon 2 of 12	NP_001356387.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NFIB	ENST00000380953.6	TSL:1 MANE Select	c.109C>T	p.Arg37*	stop_gained	Exon 2 of 11	ENSP00000370340.1	O00712-5
	NFIB	ENST00000380959.7	TSL:1	c.109C>T	p.Arg37*	stop_gained	Exon 2 of 9	ENSP00000370346.3	O00712-1
	NFIB	ENST00000380921.3	TSL:1	c.109C>T	p.Arg37*	stop_gained	Exon 2 of 3	ENSP00000370308.3	Q5W0Y9

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 31

ClinVar

ClinVar submissions

Significance: Pathogenic

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
3	-	-	Macrocephaly, acquired, with impaired intellectual development (3)
1	-	-	Macrocephaly;C3714756:Intellectual disability (1)
1	-	-	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Pathogenic	0.55	D
BayesDel_noAF	Pathogenic	0.55
CADD	Pathogenic	57
DANN	Uncertain	1.0
Eigen	Pathogenic	0.93
Eigen_PC	Pathogenic	0.83
FATHMM_MKL	Uncertain	0.92	D
PhyloP100		5.6
Vest4		0.80
GERP RS		5.7
PromoterAI		-0.054	Neutral
Mutation Taster		=0/200	disease causing (ClinVar)

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: rs1554709792; hg19: chr9-14307441; COSMIC: COSV101100265;