18-49909180-A-G

Variant names:

• chr18-49909180-A-G
• rs17727982
• NM_001080467.3:c.2203-2550T>C

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_001080467.3(MYO5B):​c.2203-2550T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.124 in 152,282 control chromosomes in the GnomAD database, including 1,424 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 0.12 (1424 hom., cov: 33)
• Consequence: MYO5B NM_001080467.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -3.12
• Publications: 2 publications found

Genes affected

MYO5B (HGNC:7603): (myosin VB) The protein encoded by this gene, together with other proteins, may be involved in plasma membrane recycling. Mutations in this gene are associated with microvillous inclusion disease. [provided by RefSeq, Sep 2009]

MYO5B Gene-Disease associations (from GenCC):

• microvillus inclusion disease

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, G2P, PanelApp Australia, Labcorp Genetics (formerly Invitae)
• cholestasis, progressive familial intrahepatic, 10

  Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
• progressive familial intrahepatic cholestasis type 1

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-1.02).
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.279 is higher than 0.05.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001080467.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MYO5B	NM_001080467.3	MANE Select	c.2203-2550T>C		intron	N/A	NP_001073936.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MYO5B	ENST00000285039.12	TSL:1 MANE Select	c.2203-2550T>C		intron	N/A	ENSP00000285039.6
	MYO5B	ENST00000697219.1		c.1999-2550T>C		intron	N/A	ENSP00000513188.1

Frequencies

GnomAD3 genomes AF: 0.124 AC: 18833 AN: 152164 Hom.: 1426 Cov.: 33

Gnomad AFR AF: 0.0457

Gnomad AMI AF: 0.147

Gnomad AMR AF: 0.162

Gnomad ASJ AF: 0.107

Gnomad EAS AF: 0.292

Gnomad SAS AF: 0.170

Gnomad FIN AF: 0.183

Gnomad MID AF: 0.0728

Gnomad NFE AF: 0.138

Gnomad OTH AF: 0.123

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

GnomAD4 genome AF: 0.124 AC: 18836 AN: 152282 Hom.: 1424 Cov.: 33 AF XY: 0.128 AC XY: 9509 AN XY: 74450

African (AFR) AF: 0.0456 AC: 1895 AN: 41578

American (AMR) AF: 0.162 AC: 2474 AN: 15304

Ashkenazi Jewish (ASJ) AF: 0.107 AC: 372 AN: 3472

East Asian (EAS) AF: 0.291 AC: 1508 AN: 5176

South Asian (SAS) AF: 0.170 AC: 822 AN: 4828

European-Finnish (FIN) AF: 0.183 AC: 1944 AN: 10594

Middle Eastern (MID) AF: 0.0714 AC: 21 AN: 294

European-Non Finnish (NFE) AF: 0.138 AC: 9399 AN: 68014

Other (OTH) AF: 0.127 AC: 267 AN: 2110

Alfa AF: 0.130 Hom.: 259

Bravo AF: 0.119

Asia WGS AF: 0.202 AC: 702 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-1.0
CADD	Benign	0.45
DANN	Benign	0.23
PhyloP100		-3.1
Mutation Taster		=100/0	polymorphism (auto)

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

dbSNP: rs17727982; hg19: chr18-47435550;