rs80153902

chr6-29828141-G-A

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 0P and 7B. BP4_Moderate BP7 BS2

The NM_001384290.1(HLA-G):c.168G>A(p.Gln56=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000835 in 1,613,308 control chromosomes in the GnomAD database, including 8 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 0.0045 (6 hom., cov: 33)
  • Exomes 𝑓: 0.00046 (2 hom.)
• Consequence: HLA-G NM_001384290.1 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.65

Genes affected

HLA-G (HGNC:4964): (major histocompatibility complex, class I, G) HLA-G belongs to the HLA class I heavy chain paralogues. This class I molecule is a heterodimer consisting of a heavy chain and a light chain (beta-2 microglobulin). The heavy chain is anchored in the membrane. HLA-G is expressed on fetal derived placental cells. The heavy chain is approximately 45 kDa and its gene contains 8 exons. Exon one encodes the leader peptide, exons 2 and 3 encode the alpha1 and alpha2 domain, which both bind the peptide, exon 4 encodes the alpha3 domain, exon 5 encodes the transmembrane region, and exon 6 encodes the cytoplasmic tail. [provided by RefSeq, Jul 2008]

HCG4P8 (HGNC:22927): (HLA complex group 4 pseudogene 8)

ACMG classification

Verdict is Benign. Variant got -7 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.42).
• BP7: Synonymous conserved (PhyloP=1.65 with no splicing effect.
• BS2: High Homozygotes in GnomAd at 6 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
HLA-G	NM_001384290.1	c.168G>A	p.Gln56=	synonymous_variant	2/7	ENST00000360323.11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
HLA-G	ENST00000360323.11	c.168G>A	p.Gln56=	synonymous_variant	2/7		NM_001384290.1	P2
HCG4P8	ENST00000443049.1	n.224C>T		non_coding_transcript_exon_variant	1/1

Frequencies

GnomAD3 genomes AF: 0.00447 AC: 680 AN: 152236 Hom.: 6 Cov.: 33

Gnomad AFR AF: 0.0153

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00190

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: 0.000147

Gnomad OTH AF: 0.00239

GnomAD3 exomes AF: 0.00123 AC: 303 AN: 247246 Hom.: 1 AF XY: 0.000862 AC XY: 116 AN XY: 134570

Gnomad AFR exome AF: 0.0166

Gnomad AMR exome AF: 0.000841

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: 0.000108

Gnomad OTH exome AF: 0.000989

GnomAD4 exome AF: 0.000457 AC: 667 AN: 1460954 Hom.: 2 Cov.: 89 AF XY: 0.000403 AC XY: 293 AN XY: 726840

Gnomad4 AFR exome AF: 0.0151

Gnomad4 AMR exome AF: 0.00101

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000232

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000522

Gnomad4 OTH exome AF: 0.000928

GnomAD4 genome AF: 0.00446 AC: 680 AN: 152354 Hom.: 6 Cov.: 33 AF XY: 0.00404 AC XY: 301 AN XY: 74512

Gnomad4 AFR AF: 0.0153

Gnomad4 AMR AF: 0.00189

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000147

Gnomad4 OTH AF: 0.00237

Alfa AF: 0.00150 Hom.: 1

Bravo AF: 0.00519

Asia WGS AF: 0.000866 AC: 3 AN: 3478

EpiCase AF: 0.0000545

EpiControl AF: 0.000178

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.42
Cadd	Benign	15
Dann	Uncertain	0.98

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.050		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: rs80153902; hg19: chr6-29795918;