Variant 4-73438185-T-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4_StrongBP6

The NM_001134.3(AFP):c.149T>A(p.Phe50Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000174 in 1,613,388 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (no stars).

Frequency

Genomes: 𝑓 0.00096 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000092 ( 0 hom. )

Consequence

AFP
NM_001134.3 missense

Scores

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: 0.0980

Variant links:

Genes affected

AFP (HGNC:317): (alpha fetoprotein) This gene encodes alpha-fetoprotein, a major plasma protein produced by the yolk sac and the liver during fetal life. Alpha-fetoprotein expression in adults is often associated with hepatocarcinoma and with teratoma, and has prognostic value for managing advanced gastric cancer. However, hereditary persistance of alpha-fetoprotein may also be found in individuals with no obvious pathology. The protein is thought to be the fetal counterpart of serum albumin, and the alpha-fetoprotein and albumin genes are present in tandem in the same transcriptional orientation on chromosome 4. Alpha-fetoprotein is found in monomeric as well as dimeric and trimeric forms, and binds copper, nickel, fatty acids and bilirubin. The level of alpha-fetoprotein in amniotic fluid is used to measure renal loss of protein to screen for spina bifida and anencephaly. [provided by RefSeq, Oct 2019]

AFP links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.010208845).

BP6

Variant 4-73438185-T-A is Benign according to our data. Variant chr4-73438185-T-A is described in ClinVar as [Likely_benign]. Clinvar id is 3051185.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
AFP	NM_001134.3 linkuse as main transcript	c.149T>A	p.Phe50Tyr	missense_variant	3/15	ENST00000395792.7	NP_001125.1	P02771
AFP	NM_001354717.2 linkuse as main transcript	c.-184T>A		5_prime_UTR_variant	3/16		NP_001341646.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
AFP	ENST00000395792.7 linkuse as main transcript	c.149T>A	p.Phe50Tyr	missense_variant	3/15	1	NM_001134.3	ENSP00000379138.2		P02771
AFP	ENST00000226359.2 linkuse as main transcript	c.149T>A	p.Phe50Tyr	missense_variant	3/14	5		ENSP00000226359.2		J3KMX3

Frequencies

GnomAD3 genomes

AF:

0.000934

AC:

142

AN:

152092

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00319

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000655

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:

0.000295

AC:

AN:

251202

Hom.:

AF XY:

0.000191

AC XY:

AN XY:

135790

show subpopulations

Gnomad AFR exome

AF:

0.00357

Gnomad AMR exome

AF:

0.000463

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

AF:

0.0000917

AC:

134

AN:

1461178

Hom.:

Cov.:

AF XY:

0.0000770

AC XY:

AN XY:

726892

show subpopulations

Gnomad4 AFR exome

AF:

0.00308

Gnomad4 AMR exome

AF:

0.000380

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:

0.00

Gnomad4 OTH exome

AF:

0.000232

GnomAD4 genome

AF:

0.000959

AC:

146

AN:

152210

Hom.:

Cov.:

AF XY:

0.00106

AC XY:

AN XY:

74428

show subpopulations

Gnomad4 AFR

AF:

0.00327

Gnomad4 AMR

AF:

0.000654

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

Alfa

AF:

0.000335

Hom.:

Bravo

AF:

0.00112

ESP6500AA

AF:

0.00182

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000313

AC:

Asia WGS

AF:

0.000578

AC:

AN:

3476

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: no assertion criteria provided

LINK: link

Submissions by phenotype

AFP-related disorder

Benign:1

Likely benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Feb 09, 2022

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.15

BayesDel_addAF

Benign

-0.49

BayesDel_noAF

Benign

-0.48

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.086

T;T

Eigen

Benign

-0.57

Eigen_PC

Benign

-0.64

FATHMM_MKL

Benign

0.35

LIST_S2

Benign

0.58

T;T

M_CAP

Benign

0.0085

MetaRNN

Benign

0.010

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Uncertain

2.4

M;.

PrimateAI

Benign

0.47

PROVEAN

Benign

-0.46

N;N

REVEL

Benign

0.13

Sift

Benign

0.055

T;T

Sift4G

Benign

0.075

T;T

Polyphen

0.59

P;.

Vest4

0.44

MVP

0.31

MPC

0.19

ClinPred

0.047

GERP RS

1.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

2.2

Varity_R

0.17

gMVP

0.20

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