Variant 16-166345-G-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001003938.4(HBM):c.170G>C(p.Ser57Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000139 in 1,441,090 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

HBM
NM_001003938.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -3.13

Variant links:

Genes affected

HBM (HGNC:4826): (hemoglobin subunit mu) The human alpha globin gene cluster located on chromosome 16 spans about 30 kb and includes seven loci: 5'- zeta - pseudozeta - mu - pseudoalpha-1 - alpha-2 - alpha-1 - theta - 3'. This gene has an ORF encoding a 141 aa polypeptide which is similar to the delta globins found in reptiles and birds. This locus was originally described as a pseudogene; however, it is currently thought to be a protein-coding gene. [provided by RefSeq, Jul 2008]

HBM links:

HBM (HGNC:):

HBM links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.13406345).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
HBM	NM_001003938.4 linkuse as main transcript	c.170G>C	p.Ser57Thr	missense_variant	2/3	ENST00000356815.4	NP_001003938.1	Q6B0K9A0A1K0FU50

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
HBM	ENST00000356815.4 linkuse as main transcript	c.170G>C	p.Ser57Thr	missense_variant	2/3	1	NM_001003938.4	ENSP00000349270.3	Q6B0K9
HBM	ENST00000472539.5 linkuse as main transcript	n.283G>C		non_coding_transcript_exon_variant	2/3	5
HBM	ENST00000496585.1 linkuse as main transcript	n.283G>C		non_coding_transcript_exon_variant	2/3	2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000466

AC:

AN:

214632

Hom.:

AF XY:

0.00

AC XY:

AN XY:

119190

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000299

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000139

AC:

AN:

1441090

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

716932

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000451

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:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Aug 13, 2021

The c.170G>C (p.S57T) alteration is located in exon 2 (coding exon 2) of the HBM gene. This alteration results from a G to C substitution at nucleotide position 170, causing the serine (S) at amino acid position 57 to be replaced by a threonine (T). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.079

BayesDel_addAF

Benign

-0.12

BayesDel_noAF

Benign

-0.41

CADD

Benign

0.49

DANN

Benign

0.65

DEOGEN2

Benign

0.0098

Eigen

Benign

-1.3

Eigen_PC

Benign

-1.4

FATHMM_MKL

Benign

0.20

LIST_S2

Benign

0.26

M_CAP

Uncertain

0.10

MetaRNN

Benign

0.13

MetaSVM

Benign

-0.64

MutationAssessor

Benign

0.54

PrimateAI

Benign

0.33

PROVEAN

Benign

-0.90

REVEL

Benign

0.17

Sift

Benign

0.50

Sift4G

Benign

0.49

Polyphen

0.0010

Vest4

0.15

MutPred

0.47

Loss of disorder (P = 0.125);

MVP

0.70

MPC

0.32

ClinPred

0.043

GERP RS

-7.3

Varity_R

0.062

gMVP

0.23

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over