9-14116312-G-C

Variant names:

• chr9-14116312-G-C
• rs1349306063
• NM_001190737.2:c.1280C>G

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_001190737.2(NFIB):​c.1280C>G​(p.Pro427Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000723 in 1,382,398 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P427L) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 7.2e-7 (0 hom.)
• Consequence: NFIB NM_001190737.2 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 9.23
• 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: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

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.1280C>G	p.Pro427Arg	missense	Exon 9 of 11	NP_001177666.1	O00712-5
	NFIB	NM_001369458.1		c.1346C>G	p.Pro449Arg	missense	Exon 9 of 12	NP_001356387.1
	NFIB	NM_001369459.1		c.1346C>G	p.Pro449Arg	missense	Exon 9 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.1280C>G	p.Pro427Arg	missense	Exon 9 of 11	ENSP00000370340.1	O00712-5
	NFIB	ENST00000543693.5	TSL:1	c.524C>G	p.Pro175Arg	missense	Exon 8 of 11	ENSP00000442888.1	O00712-6
	NFIB	ENST00000380959.7	TSL:1	c.1245+4128C>G		intron	N/A	ENSP00000370346.3	O00712-1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 7.23e-7 AC: 1 AN: 1382398 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 681226

African (AFR) AF: 0.00 AC: 0 AN: 31116

American (AMR) AF: 0.00 AC: 0 AN: 33310

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 24632

East Asian (EAS) AF: 0.0000285 AC: 1 AN: 35106

South Asian (SAS) AF: 0.00 AC: 0 AN: 76046

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 47994

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5632

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1071154

Other (OTH) AF: 0.00 AC: 0 AN: 57408

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.39
BayesDel_addAF	Pathogenic	0.29	D
BayesDel_noAF	Pathogenic	0.18
CADD	Pathogenic	31
DANN	Uncertain	1.0
DEOGEN2	Benign	0.099	T
Eigen	Pathogenic	0.87
Eigen_PC	Pathogenic	0.89
FATHMM_MKL	Pathogenic	1.0	D
LIST_S2	Uncertain	0.97	D
M_CAP	Benign	0.023	T
MetaRNN	Uncertain	0.73	D
MetaSVM	Benign	-0.70	T
PhyloP100		9.2
PrimateAI	Pathogenic	0.82	D
PROVEAN	Uncertain	-3.1	D
REVEL	Uncertain	0.43
Sift	Uncertain	0.0020	D
Sift4G	Uncertain	0.0020	D
Vest4		0.95
MutPred		0.53		Gain of catalytic residue at P427 (P = 0.0095)
MVP		0.24
MPC		1.9
ClinPred		0.98	D
GERP RS		5.9
gMVP		0.49
Mutation Taster		=25/75	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: rs1349306063; hg19: chr9-14116311;