rs1554709654

Variant names:

• chr9-14307156-A-G
• rs1554709654
• NM_001190737.2:c.395T>C

Variant summary

Our verdict is Pathogenic. The variant received 16 ACMG points: 16P and 0B. PM1 PM2 PP3_Strong PP5_Very_Strong

The NM_001190737.2(NFIB):​c.395T>C​(p.Leu132Pro) 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 Likely pathogenic (★★).

• Frequency: Genomes: not found (cov: 31)
• Consequence: NFIB NM_001190737.2 missense
• Clinical Significance: Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:3
• Conservation: PhyloP100: 9.32
• 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 16 ACMG points.

• PM1: In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 3 uncertain in NM_001190737.2
• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.945
• PP5: Variant 9-14307156-A-G is Pathogenic according to our data. Variant chr9-14307156-A-G is described in ClinVar as Pathogenic/Likely_pathogenic. ClinVar VariationId is 560027.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.395T>C	p.Leu132Pro	missense	Exon 2 of 11	NP_001177666.1	O00712-5
	NFIB	NM_001369458.1		c.461T>C	p.Leu154Pro	missense	Exon 2 of 12	NP_001356387.1
	NFIB	NM_001369459.1		c.461T>C	p.Leu154Pro	missense	Exon 2 of 12	NP_001356388.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NFIB	ENST00000380953.6	TSL:1 MANE Select	c.395T>C	p.Leu132Pro	missense	Exon 2 of 11	ENSP00000370340.1	O00712-5
	NFIB	ENST00000380959.7	TSL:1	c.395T>C	p.Leu132Pro	missense	Exon 2 of 9	ENSP00000370346.3	O00712-1
	NFIB	ENST00000380921.3	TSL:1	c.395T>C	p.Leu132Pro	missense	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/Likely pathogenic

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
2	-	-	Macrocephaly, acquired, with impaired intellectual development (2)
1	-	-	Macrocephaly;C3714756:Intellectual disability (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	1.0
BayesDel_addAF	Pathogenic	0.45	D
BayesDel_noAF	Pathogenic	0.40
CADD	Pathogenic	34
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.74	D
Eigen	Pathogenic	0.89
Eigen_PC	Pathogenic	0.87
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Pathogenic	0.99	D
M_CAP	Uncertain	0.27	D
MetaRNN	Pathogenic	0.95	D
MetaSVM	Uncertain	0.68	D
MutationAssessor	Uncertain	2.4	M
PhyloP100		9.3
PrimateAI	Pathogenic	0.90	D
PROVEAN	Pathogenic	-6.0	D
REVEL	Pathogenic	0.92
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0	D
Polyphen		1.0	D
Vest4		0.98
MutPred		0.83		Loss of sheet (P = 0.0126)
MVP		0.95
MPC		2.5
ClinPred		0.99	D
GERP RS		5.7
Varity_R		0.97
gMVP		0.96
Mutation Taster		=0/100	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: rs1554709654; hg19: chr9-14307155;