rs35521813

Variant names:

• chr11-5254704-T-C
• rs35521813
• NM_000184.3:c.25A>G

Your query was ambiguous. Multiple possible variants found:

• chr11-5254704-T-C
• chr11-5254704-T-G

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_000184.3(HBG2):​c.25A>G​(p.Lys9Glu) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another nucleotide change resulting in the same amino acid substitution has been previously reported as Likely benign in UniProt. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. K9Q) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 23)
• Consequence: HBG2 NM_000184.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 4.64

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]

ENSG00000284931 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.864

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
HBG2	NM_000184.3	c.25A>G	p.Lys9Glu	missense_variant	Exon 1 of 3	ENST00000336906.6	NP_000175.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
HBG2	ENST00000336906.6	c.25A>G	p.Lys9Glu	missense_variant	Exon 1 of 3	1	NM_000184.3	ENSP00000338082.4
ENSG00000284931	ENST00000642908.1	c.25A>G	p.Lys9Glu	missense_variant	Exon 1 of 3			ENSP00000495346.1
ENSG00000239920	ENST00000380259.7	n.*1328A>G		non_coding_transcript_exon_variant	Exon 7 of 8	5		ENSP00000369609.3
ENSG00000239920	ENST00000380259.7	n.*1328A>G		3_prime_UTR_variant	Exon 7 of 8	5		ENSP00000369609.3

Frequencies

GnomAD3 genomes Cov.: 23

GnomAD4 exome Cov.: 7

GnomAD4 genome Cov.: 23

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.43
BayesDel_addAF	Pathogenic	0.17	D
BayesDel_noAF	Uncertain	0.0
CADD	Uncertain	24
DANN	Uncertain	1.0
DEOGEN2	Benign	0.090	.;.;T;.
Eigen	Uncertain	0.38
Eigen_PC	Uncertain	0.25
FATHMM_MKL	Uncertain	0.94	D
LIST_S2	Benign	0.81	T;T;T;.
M_CAP	Pathogenic	0.33	D
MetaRNN	Pathogenic	0.86	D;D;D;D
MetaSVM	Uncertain	0.62	D
MutationAssessor	Pathogenic	3.5	.;.;M;.
PROVEAN	Uncertain	-3.2	.;.;D;.
REVEL	Pathogenic	0.68
Sift	Pathogenic	0.0	.;.;D;.
Sift4G	Uncertain	0.012	.;.;D;.
Polyphen		0.93	.;.;P;.
Vest4		0.53, 0.58
MutPred		0.71		Loss of methylation at K9 (P = 0.0061);Loss of methylation at K9 (P = 0.0061);Loss of methylation at K9 (P = 0.0061);Loss of methylation at K9 (P = 0.0061);
MVP		0.91
ClinPred		0.99	D
GERP RS		2.6
Varity_R		0.82
gMVP		0.67

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

Other links and lift over

dbSNP: rs35521813; hg19: chr11-5275934;