{{Rsnum
|rsid=80338835
|Chromosome=22
|Orientation=minus
|geno1=(C;C)
|geno2=(C;T)
|geno3=(T;T)
|Gene=MYH9
|position=36282754
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
|Gene_s=MYH9
}}{{omim
|id=160775
|rsnum=80338835
|variant=0001
}}{{ClinVar
|rsid=80338835
|Reversed=1
|FwdREF=C
|FwdALT=T
|REF=G
|ALT=A
|RSPOS=36678800
|CHROM=22
|dbSNPBuildID=131
|SSR=0
|SAO=1
|VP=0x050168000000000002110100
|GENEINFO=MYH9:4627
|GENE_NAME=MYH9
|GENE_ID=4627
|WGT=0
|VC=SNV
|CLNALLE=1
|CLNHGVS=NC_000022.10:g.36678800G>A
|CLNSRC=GeneReviews; OMIM Allelic Variant
|CLNORIGIN=0
|CLNSRCID=NBK2689; 160775.0001
|CLNSIG=5
|CLNCUI=C0340978; C0403445; C1854520
|CLNDBN=May-Hegglin anomaly; Fechtner syndrome; Sebastian syndrome; MYH9 related disorders
|Disease=May-Hegglin anomaly; Fechtner syndrome; Sebastian syndrome; MYH9 related disorders
|CLNACC=RCV000015116.24; RCV000015117.24; RCV000015118.24; RCV000032227.1
|Tags=RV;PM;PMC;SLO;OTHERKG;LSD;OM
|CLNDSDB=GeneReviews:MedGen:OMIM; GeneReviews:MedGen:OMIM:SNOMED_CT; GeneReviews:MedGen
|CLNDSDBID=NBK2689:C0340978:155100; NBK2689:C0403445:153640:236422008; NBK2689:C1854520:605249; NBK2689:CN073381
}}{{PMID|10739770|OA=1
}} The gene for May-Hegglin anomaly localizes to a <1-Mb region on chromosome 22q12.3-13.1.

{{PMID|10973259}} Mutations in MYH9 result in the May-Hegglin anomaly, and Fechtner and Sebastian syndromes. The May-Heggllin/Fechtner Syndrome Consortium.

{{PMID|10973260}} Mutation of MYH9, encoding non-muscle myosin heavy chain A, in May-Hegglin anomaly.