Variant rs281864890 details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_000184.3(HBG2):c.38C>G(p.Thr13Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000384 in 781,212 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as other (no stars). Another nucleotide change resulting in same amino acid change has been previously reported as Likely benignin UniProt.

Frequency

Genomes: 𝑓 0.000014 ( 0 hom., cov: 23)

Exomes 𝑓: 0.0000016 ( 0 hom. )

Consequence

HBG2
NM_000184.3 missense

Scores

Clinical Significance

other no assertion criteria provided O:1

Conservation

PhyloP100: 0.373

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:

ENSG00000284931 (HGNC:):

ENSG00000284931 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.27287346).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
HBG2	NM_000184.3 linkuse as main transcript	c.38C>G	p.Thr13Arg	missense_variant	1/3	ENST00000336906.6	NP_000175.1	P69892D9YZU9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
HBG2	ENST00000336906.6 linkuse as main transcript	c.38C>G	p.Thr13Arg	missense_variant	1/3	1	NM_000184.3	ENSP00000338082.4	P69892
ENSG00000284931	ENST00000642908.1 linkuse as main transcript	c.38C>G	p.Thr13Arg	missense_variant	1/3			ENSP00000495346.1
ENSG00000239920	ENST00000380259.7 linkuse as main transcript	n.*1341C>G		non_coding_transcript_exon_variant	7/8	5		ENSP00000369609.3	A0A2U3TZJ3
ENSG00000239920	ENST00000380259.7 linkuse as main transcript	n.*1341C>G		3_prime_UTR_variant	7/8	5		ENSP00000369609.3	A0A2U3TZJ3

Frequencies

GnomAD3 genomes

AF:

0.0000138

AC:

AN:

144880

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000696

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:

0.0000151

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000157

AC:

AN:

636332

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

332698

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:

0.00000242

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000138

AC:

AN:

144880

Hom.:

Cov.:

AF XY:

0.0000286

AC XY:

AN XY:

69950

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000696

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000151

Gnomad4 OTH

AF:

0.00

ClinVar

Significance: other

Submissions summary: Other:1

Revision: no assertion criteria provided

LINK: link

Submissions by phenotype

HEMOGLOBIN F (HEATHER)

Other:1

other, no assertion criteria provided

literature only

OMIM

Oct 04, 2018

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.096

BayesDel_addAF

Benign

-0.19

BayesDel_noAF

Benign

-0.13

CADD

Benign

DANN

Benign

0.94

DEOGEN2

Benign

0.061

.;.;T;.

Eigen

Benign

-0.20

Eigen_PC

Benign

-0.37

FATHMM_MKL

Benign

0.074

LIST_S2

Uncertain

0.86

D;D;D;.

M_CAP

Uncertain

0.13

MetaRNN

Benign

0.27

T;T;T;T

MetaSVM

Uncertain

-0.26

MutationAssessor

Benign

1.8

.;.;L;.

PROVEAN

Uncertain

-3.0

.;.;D;.

REVEL

Uncertain

0.41

Sift

Pathogenic

0.0

.;.;D;.

Sift4G

Benign

0.16

.;.;T;.

Polyphen

0.75

.;.;P;.

Vest4

0.17, 0.17

MutPred

0.47

Loss of methylation at K18 (P = 0.0597);Loss of methylation at K18 (P = 0.0597);Loss of methylation at K18 (P = 0.0597);Loss of methylation at K18 (P = 0.0597);

MVP

0.89

ClinPred

0.63

GERP RS

1.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.0

Varity_R

0.73

gMVP

0.23

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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