22-36282733-C-G

Variant names:

• chr22-36282733-C-G
• NM_002473.6:c.5818G>C
• MYH9 p.Gly1940Arg

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_002473.6(MYH9):​c.5818G>C​(p.Gly1940Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another nucleotide change resulting in the same amino acid substitution has been previously reported as Likely benign in ClinVar.

• Frequency: Genomes: not found (cov: 33)
• Consequence: MYH9 NM_002473.6 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.91
• Publications: 0 publications found

Genes affected

MYH9 (HGNC:7579): (myosin heavy chain 9) This gene encodes a conventional non-muscle myosin; this protein should not be confused with the unconventional myosin-9a or 9b (MYO9A or MYO9B). The encoded protein is a myosin IIA heavy chain that contains an IQ domain and a myosin head-like domain which is involved in several important functions, including cytokinesis, cell motility and maintenance of cell shape. Defects in this gene have been associated with non-syndromic sensorineural deafness autosomal dominant type 17, Epstein syndrome, Alport syndrome with macrothrombocytopenia, Sebastian syndrome, Fechtner syndrome and macrothrombocytopenia with progressive sensorineural deafness. [provided by RefSeq, Dec 2011]

MYH9 Gene-Disease associations (from GenCC):

• autosomal dominant nonsyndromic hearing loss 17

  Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae)
• macrothrombocytopenia and granulocyte inclusions with or without nephritis or sensorineural hearing loss

  Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, G2P, ClinGen, Labcorp Genetics (formerly Invitae)
• May-Hegglin anomaly

  Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
• autosomal dominant nonsyndromic hearing loss

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.21717319).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002473.6. 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
	MYH9	NM_002473.6	MANE Select	c.5818G>C	p.Gly1940Arg	missense	Exon 41 of 41	NP_002464.1	P35579-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MYH9	ENST00000216181.11	TSL:1 MANE Select	c.5818G>C	p.Gly1940Arg	missense	Exon 41 of 41	ENSP00000216181.6	P35579-1
	MYH9	ENST00000685801.1		c.5881G>C	p.Gly1961Arg	missense	Exon 42 of 42	ENSP00000510688.1	A0A8I5KWT8
	MYH9	ENST00000955568.1		c.5881G>C	p.Gly1961Arg	missense	Exon 42 of 42	ENSP00000625627.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.23
BayesDel_addAF	Uncertain	0.021	T
BayesDel_noAF	Benign	-0.21
CADD	Benign	18
DANN	Benign	0.89
DEOGEN2	Benign	0.27	T
Eigen	Benign	-0.62
Eigen_PC	Benign	-0.53
FATHMM_MKL	Uncertain	0.81	D
LIST_S2	Uncertain	0.92	D
M_CAP	Benign	0.069	D
MetaRNN	Benign	0.22	T
MetaSVM	Benign	-0.62	T
MutationAssessor	Benign	0.81	L
PhyloP100		2.9
PrimateAI	Uncertain	0.64	T
PROVEAN	Uncertain	-2.5	N
REVEL	Benign	0.23
Sift	Benign	0.053	T
Sift4G	Benign	0.51	T
Varity_R		0.098
gMVP		0.23
Mutation Taster		=94/6	polymorphism

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

hg19: chr22-36678779;