11-5254429-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 1P and 1B. PP3BS2_Supporting

The NM_000184.3(HBG2):ā€‹c.178A>Gā€‹(p.Lys60Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000434 in 1,614,162 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic 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. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. K60Q) has been classified as Likely benign.

Frequency

Genomes: š‘“ 0.000013 ( 0 hom., cov: 31)
Exomes š‘“: 0.0000034 ( 0 hom. )

Consequence

HBG2
NM_000184.3 missense

Scores

2
8
8

Clinical Significance

other no assertion criteria provided O:1

Conservation

PhyloP100: 2.75
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.799
BS2
High AC in GnomAdExome4 at 5 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
HBG2NM_000184.3 linkuse as main transcriptc.178A>G p.Lys60Glu missense_variant 2/3 ENST00000336906.6 NP_000175.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
HBG2ENST00000336906.6 linkuse as main transcriptc.178A>G p.Lys60Glu missense_variant 2/31 NM_000184.3 ENSP00000338082 P1
HBG2ENST00000380252.6 linkuse as main transcriptc.13A>G p.Lys5Glu missense_variant 2/33 ENSP00000369602
HBG2ENST00000444587.1 linkuse as main transcriptc.*47A>G 3_prime_UTR_variant 2/32 ENSP00000488218

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152274
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000795
AC:
2
AN:
251458
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135904
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:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000342
AC:
5
AN:
1461888
Hom.:
0
Cov.:
34
AF XY:
0.00000275
AC XY:
2
AN XY:
727246
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:
0.00000450
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152274
Hom.:
0
Cov.:
31
AF XY:
0.0000134
AC XY:
1
AN XY:
74394
show subpopulations
Gnomad4 AFR
AF:
0.00
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:
0.0000294
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378

ClinVar

Significance: other
Submissions summary: Other:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

HEMOGLOBIN F (EMIRATES) Other:1
other, no assertion criteria providedliterature onlyOMIMAug 05, 2011- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.28
BayesDel_addAF
Uncertain
0.078
D
BayesDel_noAF
Benign
-0.11
CADD
Benign
23
DANN
Uncertain
1.0
DEOGEN2
Benign
0.066
.;.;T;.
Eigen
Benign
0.11
Eigen_PC
Benign
0.012
FATHMM_MKL
Uncertain
0.91
D
LIST_S2
Benign
0.80
T;T;T;T
M_CAP
Benign
0.056
D
MetaRNN
Pathogenic
0.80
D;D;D;D
MetaSVM
Uncertain
0.27
D
MutationAssessor
Pathogenic
3.0
.;.;M;.
MutationTaster
Benign
1.0
N;N;N
PROVEAN
Uncertain
-2.7
.;.;D;.
REVEL
Uncertain
0.51
Sift
Uncertain
0.0020
.;.;D;.
Sift4G
Uncertain
0.024
.;.;D;.
Polyphen
0.19
.;.;B;.
Vest4
0.46
MutPred
0.65
Loss of methylation at K60 (P = 0.0101);Loss of methylation at K60 (P = 0.0101);Loss of methylation at K60 (P = 0.0101);.;
MVP
0.91
ClinPred
0.95
D
GERP RS
2.7
RBP_binding_hub_radar
1.1
RBP_regulation_power_radar
2.3
Varity_R
0.63
gMVP
0.65

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: rs28933078; hg19: chr11-5275659; API