chr19-40771749-AC-A

Variant names:

• chr19-40771749-AC-A
• ENST00000600729.2:n.-320delC

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The ENST00000600729.2(MIA-RAB4B):​n.-320delC variant causes a non coding transcript exon change involving the alteration of a non-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: MIA-RAB4B ENST00000600729.2 non_coding_transcript_exon
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.700
• Publications: 0 publications found

Genes affected

MIA-RAB4B (HGNC:48352): (MIA-RAB4B readthrough (NMD candidate)) This locus represents naturally occurring read-through transcription between the neighboring MIA (melanoma inhibitory activity) and RAB4B (RAB4B, member RAS oncogene family) genes on chromosome 19. The read-through transcript is a candidate for nonsense-mediated mRNA decay (NMD), and is therefore unlikely to produce a protein product. [provided by RefSeq, Feb 2011]

MIA (HGNC:7076): (MIA SH3 domain containing) Predicted to enable growth factor activity. Predicted to be involved in extracellular matrix organization. Predicted to act upstream of or within cell-matrix adhesion. Predicted to be located in extracellular space. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

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

Variant Effect in Transcripts

ACMG analysis was done for transcript: ENST00000600729.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
There are no transcript annotations for this variant.

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MIA-RAB4B	ENST00000600729.2	TSL:5	n.-320delC		non_coding_transcript_exon	Exon 1 of 11	ENSP00000472384.1	W4VSR3
	MIA-RAB4B	ENST00000600729.2	TSL:5	n.-320delC		5_prime_UTR	Exon 1 of 11	ENSP00000472384.1	W4VSR3
	MIA	ENST00000928258.1		c.-182delC		5_prime_UTR	Exon 1 of 5	ENSP00000598317.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 0

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		-0.70

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

Other links and lift over

hg19: chr19-41277654;