chr22-36300232-G-A

Variant names:

• chr22-36300232-G-A
• rs374840260
• NM_002473.6:c.2871C>T

Variant summary

Our verdict is Benign. The variant received -14 ACMG points: 0P and 14B. BP4_Strong BP6 BP7 BS1 BS2

The NM_002473.6(MYH9):​c.2871C>T​(p.Ser957Ser) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000137 in 1,613,436 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

• Frequency:
  • Genomes: 𝑓 0.00068 (0 hom., cov: 33)
  • Exomes 𝑓: 0.000081 (0 hom.)
• Consequence: MYH9 NM_002473.6 synonymous
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1 B:4
• Conservation: PhyloP100: -2.70
• Publications: 2 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: Labcorp Genetics (formerly Invitae), G2P
• macrothrombocytopenia and granulocyte inclusions with or without nephritis or sensorineural hearing loss

  Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, ClinGen, Labcorp Genetics (formerly Invitae), Orphanet
• 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: Benign. The variant received -14 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.59).
• BP6: Variant 22-36300232-G-A is Benign according to our data. Variant chr22-36300232-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 258737.
• BP7: Synonymous conserved (PhyloP=-2.7 with no splicing effect.
• BS1: Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.000676 (103/152332) while in subpopulation AFR AF = 0.00231 (96/41576). AF 95% confidence interval is 0.00193. There are 0 homozygotes in GnomAd4. There are 40 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.
• BS2: High AC in GnomAd4 at 103 AD gene.

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.2871C>T	p.Ser957Ser	synonymous	Exon 23 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.2871C>T	p.Ser957Ser	synonymous	Exon 23 of 41	ENSP00000216181.6	P35579-1
	MYH9	ENST00000685801.1		c.2934C>T	p.Ser978Ser	synonymous	Exon 24 of 42	ENSP00000510688.1	A0A8I5KWT8
	MYH9	ENST00000955568.1		c.2934C>T	p.Ser978Ser	synonymous	Exon 24 of 42	ENSP00000625627.1

Frequencies

GnomAD3 genomes AF: 0.000677 AC: 103 AN: 152214 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.00232

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000131

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: 0.0000441

Gnomad OTH AF: 0.000955

GnomAD2 exomes AF: 0.000136 AC: 34 AN: 250654 AF XY: 0.000103

Gnomad AFR exome AF: 0.00166

Gnomad AMR exome AF: 0.0000867

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000352

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000808 AC: 118 AN: 1461104 Hom.: 0 Cov.: 32 AF XY: 0.0000784 AC XY: 57 AN XY: 726910

African (AFR) AF: 0.00203 AC: 68 AN: 33478

American (AMR) AF: 0.000157 AC: 7 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.0000252 AC: 1 AN: 39700

South Asian (SAS) AF: 0.0000232 AC: 2 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52656

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.0000270 AC: 30 AN: 1111996

Other (OTH) AF: 0.000166 AC: 10 AN: 60388

GnomAD4 genome AF: 0.000676 AC: 103 AN: 152332 Hom.: 0 Cov.: 33 AF XY: 0.000537 AC XY: 40 AN XY: 74478

African (AFR) AF: 0.00231 AC: 96 AN: 41576

American (AMR) AF: 0.000131 AC: 2 AN: 15300

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5184

South Asian (SAS) AF: 0.00 AC: 0 AN: 4824

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10618

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.0000441 AC: 3 AN: 68036

Other (OTH) AF: 0.000945 AC: 2 AN: 2116

Alfa AF: 0.000591 Hom.: 0

Bravo AF: 0.000737

ClinVar

ClinVar submissions

Significance: Conflicting classifications of pathogenicity

Revision: criteria provided, conflicting classifications

Pathogenic	VUS	Benign	Condition
-	1	3	not provided (4)
-	-	1	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.59
CADD	Benign	3.6
DANN	Benign	0.69
PhyloP100		-2.7
RBP_binding_hub_radar		1.0
RBP_regulation_power_radar		2.7

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: rs374840260; hg19: chr22-36696278; COSMIC: COSV53387539; COSMIC: COSV53387539;