ENST00000292896.3:c.-266-19192T>C

Variant names:

• chr11-5289348-A-G
• rs11036641
• ENST00000292896.3:c.-266-19192T>C

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The ENST00000292896.3(HBE1):​c.-266-19192T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.251 in 152,026 control chromosomes in the GnomAD database, including 5,290 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.25 (5290 hom., cov: 31)
• Consequence: HBE1 ENST00000292896.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.624
• Publications: 4 publications found

Genes affected

HBE1 (HGNC:4830): (hemoglobin subunit epsilon 1) The epsilon globin gene (HBE) is normally expressed in the embryonic yolk sac: two epsilon chains together with two zeta chains (an alpha-like globin) constitute the embryonic hemoglobin Hb Gower I; two epsilon chains together with two alpha chains form the embryonic Hb Gower II. Both of these embryonic hemoglobins are normally supplanted by fetal, and later, adult hemoglobin. The five beta-like globin genes are found within a 45 kb cluster on chromosome 11 in the following order: 5'-epsilon - G-gamma - A-gamma - delta - beta-3' [provided by RefSeq, Jul 2008]

ENSG00000239920 (HGNC:):

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 Gene-Disease associations (from GenCC):

• hemoglobinopathy Toms River

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• hereditary persistence of fetal hemoglobin-beta-thalassemia syndrome

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• hereditary persistence of fetal hemoglobin-sickle cell disease syndrome

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• cyanosis, transient neonatal

  Inheritance: Unknown Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)

ACMG classification

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.88).
• BA1: GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.32 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ENSG00000239920	ENST00000380259.7	n.*867-34183T>C		intron_variant	Intron 6 of 7	5		ENSP00000369609.3

Frequencies

GnomAD3 genomes AF: 0.251 AC: 38152 AN: 151910 Hom.: 5293 Cov.: 31

Gnomad AFR AF: 0.153

Gnomad AMI AF: 0.232

Gnomad AMR AF: 0.238

Gnomad ASJ AF: 0.231

Gnomad EAS AF: 0.205

Gnomad SAS AF: 0.244

Gnomad FIN AF: 0.222

Gnomad MID AF: 0.212

Gnomad NFE AF: 0.324

Gnomad OTH AF: 0.263

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.251 AC: 38148 AN: 152026 Hom.: 5290 Cov.: 31 AF XY: 0.246 AC XY: 18310 AN XY: 74312

African (AFR) AF: 0.152 AC: 6307 AN: 41452

American (AMR) AF: 0.237 AC: 3625 AN: 15282

Ashkenazi Jewish (ASJ) AF: 0.231 AC: 802 AN: 3468

East Asian (EAS) AF: 0.206 AC: 1064 AN: 5174

South Asian (SAS) AF: 0.244 AC: 1174 AN: 4808

European-Finnish (FIN) AF: 0.222 AC: 2345 AN: 10552

Middle Eastern (MID) AF: 0.221 AC: 65 AN: 294

European-Non Finnish (NFE) AF: 0.324 AC: 21998 AN: 67978

Other (OTH) AF: 0.264 AC: 557 AN: 2108

Alfa AF: 0.285 Hom.: 1460

Bravo AF: 0.249

Asia WGS AF: 0.245 AC: 852 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.88
CADD	Benign	0.97
DANN	Benign	0.54
PhyloP100		-0.62
Mutation Taster		=100/0	polymorphism (auto)

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

Other links and lift over

dbSNP: rs11036641; hg19: chr11-5310578;