NM_004115.4:c.123C>G

Variant names:

• chr13-101916523-G-C
• rs372705140
• NM_004115.4:c.123C>G

Variant summary

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

The NM_004115.4(FGF14):​c.123C>G​(p.Asn41Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,478 control chromosomes in the GnomAD database, with no homozygous occurrence. 12/18 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. N41N) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: FGF14 NM_004115.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.320

Genes affected

FGF14 (HGNC:3671): (fibroblast growth factor 14) The protein encoded by this gene is a member of the fibroblast growth factor (FGF) family. FGF family members possess broad mitogenic and cell survival activities, and are involved in a variety of biological processes, including embryonic development, cell growth, morphogenesis, tissue repair, tumor growth and invasion. A mutation in this gene is associated with autosomal dominant cerebral ataxia. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

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

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FGF14	NM_004115.4	c.123C>G	p.Asn41Lys	missense_variant	Exon 1 of 5	ENST00000376143.5	NP_004106.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FGF14	ENST00000376143.5	c.123C>G	p.Asn41Lys	missense_variant	Exon 1 of 5	1	NM_004115.4	ENSP00000365313.4

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461478 Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0 AN XY: 727066

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: 0.00000180

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.24
BayesDel_addAF	Benign	-0.069	T
BayesDel_noAF	Benign	-0.34
CADD	Benign	17
DANN	Uncertain	0.99
DEOGEN2	Benign	0.23	T
Eigen	Benign	-0.59
Eigen_PC	Benign	-0.52
FATHMM_MKL	Uncertain	0.84	D
LIST_S2	Benign	0.85	T
M_CAP	Uncertain	0.17	D
MetaRNN	Uncertain	0.49	T
MetaSVM	Benign	-0.83	T
MutationAssessor	Benign	1.4	L
PROVEAN	Benign	-0.57	N
REVEL	Benign	0.19
Sift	Uncertain	0.025	D
Sift4G	Benign	0.071	T
Polyphen		0.0060	B
Vest4		0.76
MutPred		0.38		Gain of methylation at N41 (P = 7e-04);
MVP		0.82
ClinPred		0.059	T
GERP RS		0.033
Varity_R		0.087

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

Publications

LitVar

Other links and lift over

dbSNP: rs372705140; hg19: chr13-102568873;