chr11-5281856-A-G

Variant names:

• chr11-5281856-A-G
• rs34272388
• ENST00000292896.3:c.-266-11700T>C

Variant summary

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

The ENST00000292896.3(HBE1):​c.-266-11700T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0394 in 152,318 control chromosomes in the GnomAD database, including 385 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 0.039 (385 hom., cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: HBE1 ENST00000292896.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.96
• Publications: 1 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=-0.81).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.134 is higher than 0.05.

Variant Effect in Transcripts

ACMG analysis was done for transcript: ENST00000292896.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
There are no transcript annotations for this variant.

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	HBE1	ENST00000292896.3	TSL:1	c.-266-11700T>C		intron	N/A	ENSP00000292896.2	P02100
	HBE1	ENST00000380237.5	TSL:1	c.-267+53T>C		intron	N/A	ENSP00000369586.1	P02100
	ENSG00000239920	ENST00000380259.7	TSL:5	n.*867-26691T>C		intron	N/A	ENSP00000369609.3	A0A2U3TZJ3

Frequencies

GnomAD3 genomes AF: 0.0393 AC: 5985 AN: 152200 Hom.: 385 Cov.: 32

Gnomad AFR AF: 0.137

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0145

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.000192

Gnomad SAS AF: 0.000621

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00949

Gnomad NFE AF: 0.000411

Gnomad OTH AF: 0.0210

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 14 Hom.: 0 AF XY: 0.00 AC XY: 0 AN XY: 8

African (AFR) AC: 0 AN: 0

American (AMR) AC: 0 AN: 0

Ashkenazi Jewish (ASJ) AC: 0 AN: 0

East Asian (EAS) AC: 0 AN: 0

South Asian (SAS) AC: 0 AN: 0

European-Finnish (FIN) AC: 0 AN: 0

Middle Eastern (MID) AC: 0 AN: 0

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 14

Other (OTH) AC: 0 AN: 0

GnomAD4 genome AF: 0.0394 AC: 5997 AN: 152318 Hom.: 385 Cov.: 32 AF XY: 0.0377 AC XY: 2807 AN XY: 74480

African (AFR) AF: 0.137 AC: 5697 AN: 41536

American (AMR) AF: 0.0144 AC: 221 AN: 15306

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3468

East Asian (EAS) AF: 0.000193 AC: 1 AN: 5190

South Asian (SAS) AF: 0.000621 AC: 3 AN: 4830

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10630

Middle Eastern (MID) AF: 0.0102 AC: 3 AN: 294

European-Non Finnish (NFE) AF: 0.000412 AC: 28 AN: 68038

Other (OTH) AF: 0.0208 AC: 44 AN: 2114

Alfa AF: 0.0334 Hom.: 18

Bravo AF: 0.0516

Asia WGS AF: 0.00837 AC: 30 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.81
CADD	Benign	6.5
DANN	Benign	0.79
PhyloP100		2.0
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
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: rs34272388; hg19: chr11-5303086;