9-126339110-C-G

Position:

• chr9-126339110-C-G

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_033446.3(MVB12B):​c.82-1398C>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.188 in 152,216 control chromosomes in the GnomAD database, including 2,805 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 0.19 (2805 hom., cov: 33)
• Consequence: MVB12B NM_033446.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -2.54

Genes affected

MVB12B (HGNC:23368): (multivesicular body subunit 12B) The protein encoded by this gene is a component of the ESCRT-I complex, a heterotetramer, which mediates the sorting of ubiquitinated cargo protein from the plasma membrane to the endosomal vesicle. ESCRT-I complex plays an essential role in HIV budding and endosomal protein sorting. Depletion and overexpression of this and related protein (MVB12A) inhibit HIV-1 infectivity and induce unusual viral assembly defects, indicating a role for MVB12 subunits in regulating ESCRT-mediated virus budding. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Aug 2011]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.84).
• BA1: GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.215 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MVB12B	NM_033446.3	c.82-1398C>G		intron_variant		ENST00000361171.8	NP_258257.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MVB12B	ENST00000361171.8	c.82-1398C>G		intron_variant		2	NM_033446.3	ENSP00000354772.3
MVB12B	ENST00000489637.3	c.82-1398C>G		intron_variant		1		ENSP00000485994.1
MVB12B	ENST00000402437.2	c.37-1398C>G		intron_variant		3		ENSP00000384751.2

Frequencies

GnomAD3 genomes AF: 0.188 AC: 28639 AN: 152096 Hom.: 2794 Cov.: 33

Gnomad AFR AF: 0.165

Gnomad AMI AF: 0.178

Gnomad AMR AF: 0.190

Gnomad ASJ AF: 0.214

Gnomad EAS AF: 0.178

Gnomad SAS AF: 0.225

Gnomad FIN AF: 0.101

Gnomad MID AF: 0.236

Gnomad NFE AF: 0.212

Gnomad OTH AF: 0.200

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.188 AC: 28675 AN: 152216 Hom.: 2805 Cov.: 33 AF XY: 0.183 AC XY: 13642 AN XY: 74418

Gnomad4 AFR AF: 0.165

Gnomad4 AMR AF: 0.190

Gnomad4 ASJ AF: 0.214

Gnomad4 EAS AF: 0.177

Gnomad4 SAS AF: 0.226

Gnomad4 FIN AF: 0.101

Gnomad4 NFE AF: 0.212

Gnomad4 OTH AF: 0.208

Alfa AF: 0.0868 Hom.: 117

Bravo AF: 0.192

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.84
CADD	Benign	0.0020
DANN	Benign	0.55

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

Other links and lift over

dbSNP: rs531599; hg19: chr9-129101389;