Variant rs281864892 details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 0P and 3B. BP6_ModerateBS2_Supporting

The NM_000184.3(HBG2):c.122G>A(p.Arg41Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000093 in 1,613,764 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely benign (★). Another nucleotide change resulting in same amino acid change has been previously reported as Likely benignin UniProt. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R41G) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 31)

Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

HBG2
NM_000184.3 missense

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1O:1

Conservation

PhyloP100: 1.03

Variant links:

Genes affected

HBG2 (HGNC:4832): (hemoglobin subunit gamma 2) The gamma globin genes (HBG1 and HBG2) are normally expressed in the fetal liver, spleen and bone marrow. Two gamma chains together with two alpha chains constitute fetal hemoglobin (HbF) which is normally replaced by adult hemoglobin (HbA) at birth. In some beta-thalassemias and related conditions, gamma chain production continues into adulthood. The two types of gamma chains differ at residue 136 where glycine is found in the G-gamma product (HBG2) and alanine is found in the A-gamma product (HBG1). The former is predominant at birth. The order of the genes in the beta-globin cluster is: 5'- epsilon -- gamma-G -- gamma-A -- delta -- beta--3'. [provided by RefSeq, Jul 2008]

HBG2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

BP6

Variant 11-5254485-C-T is Benign according to our data. Variant chr11-5254485-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 14986.Status of the report is criteria_provided_single_submitter, 1 stars.

BS2

High AC in GnomAd4 at 7 AD gene. Variant has AC lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
HBG2	NM_000184.3 linkuse as main transcript	c.122G>A	p.Arg41Lys	missense_variant	2/3	ENST00000336906.6	NP_000175.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris
HBG2	ENST00000336906.6 linkuse as main transcript	c.122G>A	p.Arg41Lys	missense_variant	2/3	1	NM_000184.3	ENSP00000338082	P1
HBG2	ENST00000444587.1 linkuse as main transcript	c.84G>A	p.Glu28=	synonymous_variant	2/3	2		ENSP00000488218
HBG2	ENST00000380252.6 linkuse as main transcript	c.-44G>A		5_prime_UTR_variant	2/3	3		ENSP00000369602

Frequencies

GnomAD3 genomes

AF:

0.0000461

AC:

AN:

151954

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

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:

0.0000736

Gnomad OTH

AF:

0.000479

GnomAD4 exome

AF:

0.00000547

AC:

AN:

1461810

Hom.:

Cov.:

AF XY:

0.00000688

AC XY:

AN XY:

727200

show subpopulations

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:

0.00000630

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000461

AC:

AN:

151954

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74184

show subpopulations

Gnomad4 AFR

AF:

0.0000242

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:

0.0000736

Gnomad4 OTH

AF:

0.000479

ExAC

AF:

0.0000247

AC:

ClinVar

Significance: Likely benign

Submissions summary: Benign:1Other:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

May 05, 2022

- -

HEMOGLOBIN F (AUSTELL)

Other:1

other, no assertion criteria provided

literature only

OMIM

Aug 05, 2011

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.50

BayesDel_addAF

Uncertain

0.14

BayesDel_noAF

Uncertain

-0.060

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Benign

0.095

.;.;T

Eigen

Benign

-0.019

Eigen_PC

Benign

0.031

FATHMM_MKL

Uncertain

0.91

LIST_S2

Uncertain

0.86

D;D;D

M_CAP

Uncertain

0.10

MetaRNN

Uncertain

0.66

D;D;D

MetaSVM

Uncertain

0.52

MutationAssessor

Uncertain

2.7

.;.;M

MutationTaster

Benign

1.0

D;D;D

PROVEAN

Benign

-2.3

.;.;N

REVEL

Uncertain

0.54

Sift

Uncertain

0.0070

.;.;D

Sift4G

Benign

0.064

.;.;T

Polyphen

0.24

.;.;B

Vest4

0.37

MutPred

0.88

Gain of methylation at R41 (P = 0.0011);Gain of methylation at R41 (P = 0.0011);Gain of methylation at R41 (P = 0.0011);

MVP

0.96

ClinPred

0.68

GERP RS

3.0

Varity_R

0.84

gMVP

0.54

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