11-5233097-G-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_000519.4(HBD):​c.316-5C>T variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000152 in 1,613,680 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00015 ( 0 hom. )

Consequence

HBD
NM_000519.4 splice_region, intron

Scores

2
Splicing: ADA: 0.000007714
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1B:1

Conservation

PhyloP100: -0.105
Variant links:
Genes affected
HBD (HGNC:4829): (hemoglobin subunit delta) The delta (HBD) and beta (HBB) genes are normally expressed in the adult: two alpha chains plus two beta chains constitute HbA, which in normal adult life comprises about 97% of the total hemoglobin. Two alpha chains plus two delta chains constitute HbA-2, which with HbF comprises the remaining 3% of adult hemoglobin. Five beta-like globin genes are found within a 45 kb cluster on chromosome 11 in the following order: 5'-epsilon--Ggamma--Agamma--delta--beta-3'. Mutations in the delta-globin gene are associated with beta-thalassemia. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.81).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
HBDNM_000519.4 linkuse as main transcriptc.316-5C>T splice_region_variant, intron_variant ENST00000650601.1 NP_000510.1 P02042A0N071

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
HBDENST00000650601.1 linkuse as main transcriptc.316-5C>T splice_region_variant, intron_variant NM_000519.4 ENSP00000497529.1 P02042
HBDENST00000643122.1 linkuse as main transcriptc.316-5C>T splice_region_variant, intron_variant ENSP00000494708.1 P02042
HBDENST00000292901.7 linkuse as main transcriptc.316-299C>T intron_variant 3 ENSP00000292901.3 E9PFT6
HBDENST00000417377.1 linkuse as main transcriptc.93-5C>T splice_region_variant, intron_variant 3 ENSP00000414741.1 C9JRG0

Frequencies

GnomAD3 genomes
AF:
0.000197
AC:
30
AN:
152074
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000483
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
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:
0.000397
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000199
AC:
50
AN:
251024
Hom.:
0
AF XY:
0.000199
AC XY:
27
AN XY:
135688
show subpopulations
Gnomad AFR exome
AF:
0.000123
Gnomad AMR exome
AF:
0.0000290
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000980
Gnomad FIN exome
AF:
0.000139
Gnomad NFE exome
AF:
0.000353
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.000148
AC:
216
AN:
1461606
Hom.:
0
Cov.:
32
AF XY:
0.000154
AC XY:
112
AN XY:
727126
show subpopulations
Gnomad4 AFR exome
AF:
0.0000598
Gnomad4 AMR exome
AF:
0.0000895
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000162
Gnomad4 FIN exome
AF:
0.000150
Gnomad4 NFE exome
AF:
0.000159
Gnomad4 OTH exome
AF:
0.000166
GnomAD4 genome
AF:
0.000197
AC:
30
AN:
152074
Hom.:
0
Cov.:
32
AF XY:
0.000188
AC XY:
14
AN XY:
74288
show subpopulations
Gnomad4 AFR
AF:
0.0000483
Gnomad4 AMR
AF:
0.0000655
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000397
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000191
Hom.:
0
Bravo
AF:
0.000147
EpiCase
AF:
0.000164
EpiControl
AF:
0.000237

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingMayo Clinic Laboratories, Mayo ClinicJan 05, 2021- -
HBD-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesFeb 21, 2020This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.81
CADD
Benign
1.2
DANN
Benign
0.64

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.0000077
dbscSNV1_RF
Benign
0.0
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: rs35769679; hg19: chr11-5254327; API