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GeneBe

19-48756432-G-A

Variant summary

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

The NM_019113.4(FGF21):c.196G>A(p.Asp66Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,208 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Consequence

FGF21
NM_019113.4 missense

Scores

2
8
5

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.18
Variant links:
Genes affected
FGF21 (HGNC:3678): (fibroblast growth factor 21) Theis gene encodes 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. This protein is a secreted endocrine factor that functions as a major metabolic regulator. The encoded protein stimulates the uptake of glucose in adipose tissue. [provided by RefSeq, Mar 2016]

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ACMG classification

Classification made for transcript

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/exons MANE UniProt
FGF21NM_019113.4 linkuse as main transcriptc.196G>A p.Asp66Asn missense_variant 2/4 ENST00000593756.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
FGF21ENST00000593756.6 linkuse as main transcriptc.196G>A p.Asp66Asn missense_variant 2/41 NM_019113.4 P1
FGF21ENST00000222157.5 linkuse as main transcriptc.196G>A p.Asp66Asn missense_variant 1/31 P1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152208
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000400
AC:
1
AN:
249924
Hom.:
0
AF XY:
0.00000739
AC XY:
1
AN XY:
135326
show subpopulations
Gnomad AFR exome
AF:
0.0000622
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
Cov.:
34
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152208
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74356
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000756
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsSep 22, 2022The c.196G>A (p.D66N) alteration is located in exon 1 (coding exon 1) of the FGF21 gene. This alteration results from a G to A substitution at nucleotide position 196, causing the aspartic acid (D) at amino acid position 66 to be replaced by an asparagine (N). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.17
BayesDel_addAF
Benign
-0.14
T
BayesDel_noAF
Benign
-0.25
Cadd
Benign
23
Dann
Uncertain
1.0
DEOGEN2
Pathogenic
0.85
D;D
Eigen
Uncertain
0.34
Eigen_PC
Uncertain
0.25
FATHMM_MKL
Uncertain
0.92
D
M_CAP
Benign
0.070
D
MetaRNN
Uncertain
0.56
D;D
MetaSVM
Uncertain
0.41
D
MutationAssessor
Uncertain
2.2
M;M
MutationTaster
Benign
0.84
D
PrimateAI
Uncertain
0.54
T
Sift4G
Pathogenic
0.0
D;D
Polyphen
1.0
D;D
Vest4
0.27
MVP
0.92
MPC
0.24
ClinPred
0.91
D
GERP RS
4.8
Varity_R
0.66
gMVP
0.41

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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs773104317; hg19: chr19-49259689; API