6-134966357-G-C

Position:

• chr6-134966357-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_006620.4(HBS1L):​c.2015C>G​(p.Ser672Cys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 32)
• Consequence: HBS1L NM_006620.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 9.29

Genes affected

HBS1L (HGNC:4834): (HBS1 like translational GTPase) This gene encodes a member of the GTP-binding elongation factor family. It is expressed in multiple tissues with the highest expression in heart and skeletal muscle. The intergenic region of this gene and the MYB gene has been identified to be a quantitative trait locus (QTL) controlling fetal hemoglobin level, and this region influnces erythrocyte, platelet, and monocyte counts as well as erythrocyte volume and hemoglobin content. DNA polymorphisms at this region associate with fetal hemoglobin levels and pain crises in sickle cell disease. A single nucleotide polymorphism in exon 1 of this gene is significantly associated with severity in beta-thalassemia/Hemoglobin E. Multiple alternatively spliced transcript variants encoding different protein isoforms have been found for this gene. [provided by RefSeq, May 2009]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
HBS1L	NM_006620.4	c.2015C>G	p.Ser672Cys	missense_variant	17/18	ENST00000367837.10	NP_006611.1
HBS1L	NM_001145158.2	c.1889C>G	p.Ser630Cys	missense_variant	16/17		NP_001138630.1
HBS1L	NM_001363686.2	c.1523C>G	p.Ser508Cys	missense_variant	18/19		NP_001350615.1
HBS1L	XM_047418093.1	c.*105C>G		3_prime_UTR_variant	16/16		XP_047274049.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
HBS1L	ENST00000367837.10	c.2015C>G	p.Ser672Cys	missense_variant	17/18	1	NM_006620.4	ENSP00000356811	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.10
BayesDel_addAF	Uncertain	0.15	D
BayesDel_noAF	Uncertain	-0.020
CADD	Pathogenic	28
DANN	Uncertain	0.99
DEOGEN2	Benign	0.084	T;T;T;.;T
Eigen	Uncertain	0.59
Eigen_PC	Uncertain	0.59
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.94	D;D;D;D;D
M_CAP	Benign	0.049	D
MetaRNN	Uncertain	0.57	D;D;D;D;D
MetaSVM	Benign	-0.50	T
MutationAssessor	Benign	1.6	L;.;.;.;.
MutationTaster	Benign	1.0	D;D;D;D;D;D
PrimateAI	Uncertain	0.66	T
PROVEAN	Benign	-1.4	N;N;N;N;N
REVEL	Benign	0.27
Sift	Benign	0.064	T;T;T;T;T
Sift4G	Benign	0.078	T;T;T;T;T
Polyphen		0.85	P;.;.;P;.
Vest4		0.79
MutPred		0.55		Gain of sheet (P = 0.0221);.;.;.;.;
MVP		0.40
MPC		0.62
ClinPred		0.85	D
GERP RS		5.8
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.16
gMVP		0.50

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: rs113801496; hg19: chr6-135287495;