16-1984273-C-T

Position:

chr16-1984273-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_005262.3(GFER):c.55C>T(p.Pro19Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000953 in 1,478,982 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00010 ( 0 hom. )

Consequence

GFER
NM_005262.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 1.80

Variant links:

Genes affected

GFER (HGNC:4236): (growth factor, augmenter of liver regeneration) The hepatotrophic factor designated augmenter of liver regeneration (ALR) is thought to be one of the factors responsible for the extraordinary regenerative capacity of mammalian liver. It has also been called hepatic regenerative stimulation substance (HSS). The gene resides on chromosome 16 in the interval containing the locus for polycystic kidney disease (PKD1). The putative gene product is 42% similar to the scERV1 protein of yeast. The yeast scERV1 gene had been found to be essential for oxidative phosphorylation, the maintenance of mitochondrial genomes, and the cell division cycle. The human gene is both the structural and functional homolog of the yeast scERV1 gene. [provided by RefSeq, Jul 2008]

GFER links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.22475651).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
GFER	NM_005262.3 linkuse as main transcript	c.55C>T	p.Pro19Ser	missense_variant	1/3	ENST00000248114.7	NP_005253.3	P55789-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
GFER	ENST00000248114.7 linkuse as main transcript	c.55C>T	p.Pro19Ser	missense_variant	1/3	1	NM_005262.3	ENSP00000248114.6	P55789-1
GFER	ENST00000561710.1 linkuse as main transcript	c.16C>T	p.Pro6Ser	missense_variant	1/2	2		ENSP00000456189.1	H3BRD2
GFER	ENST00000569451.1 linkuse as main transcript	c.55C>T	p.Pro19Ser	missense_variant	1/2	5		ENSP00000456432.1	H3BRW3

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152048

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000242

AC:

AN:

82810

Hom.:

AF XY:

0.0000211

AC XY:

AN XY:

47472

show subpopulations

Gnomad AFR exome

AF:

0.00

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:

0.0000627

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000104

AC:

138

AN:

1326934

Hom.:

Cov.:

AF XY:

0.0000979

AC XY:

AN XY:

653786

show subpopulations

Gnomad4 AFR exome

AF:

0.0000377

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:

0.000129

Gnomad4 OTH exome

AF:

0.0000182

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152048

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74266

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000655

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.0000227

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Jun 28, 2023

Variant summary: GFER c.55C>T (p.Pro19Ser) results in a non-conservative amino acid change in the encoded protein sequence. Four of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 2.4e-05 in 82810 control chromosomes (gnomAD). The available data on variant occurrences in the general population are insufficient to allow any conclusion about variant significance. To our knowledge, no occurrence of c.55C>T in individuals affected with Congenital Cataract-Progressive Muscular Hypotonia-Hearing Loss-Developmental Delay Syndrome and no experimental evidence demonstrating its impact on protein function have been reported. One submitter has cited a clinical-significance assessment for this variant to ClinVar after 2014 and has classified the variant as uncertain significance. Based on the evidence outlined above, the variant was classified as uncertain significance. -

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Mar 10, 2022

This sequence change replaces proline, which is neutral and non-polar, with serine, which is neutral and polar, at codon 19 of the GFER protein (p.Pro19Ser). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). This variant has not been reported in the literature in individuals affected with GFER-related conditions. The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.21

BayesDel_addAF

Benign

-0.080

BayesDel_noAF

Benign

-0.35

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.19

.;T;T

Eigen

Benign

-0.55

Eigen_PC

Benign

-0.52

FATHMM_MKL

Benign

0.11

LIST_S2

Benign

0.79

T;T;T

M_CAP

Pathogenic

0.68

MetaRNN

Benign

0.22

T;T;T

MetaSVM

Benign

-0.90

MutationAssessor

Benign

1.9

.;L;.

PrimateAI

Pathogenic

0.87

PROVEAN

Uncertain

-4.1

D;N;N

REVEL

Benign

0.051

Sift

Pathogenic

0.0

D;D;D

Sift4G

Pathogenic

0.0

D;D;D

Polyphen

0.096

.;B;.

Vest4

0.68

MutPred

0.26

Gain of sheet (P = 0.0149);Gain of sheet (P = 0.0149);.;

MVP

0.74

MPC

1.1

ClinPred

0.77

GERP RS

2.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.34

gMVP

0.35

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over