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The giant protein titin, together with its associated proteins, interconnects the major structure of sarcomeres, the M bands and Z discs. The C-terminal end of the titin string extends into the M line, where it binds tightly to M-band constituents of apparent molecular masses of 190 kD (myomesin 1) and 165 kD (myomesin 2). This protein, myomesin 1, like myomesin 2, titin, and other myofibrillar proteins contains structural modules with strong homology to either fibronectin type III (motif I) or immunoglobulin C2 (motif II) domains. Myomesin 1 and myomesin 2 each have a unique N-terminal region followed by 12 modules of motif I or motif II, in the arrangement II-II-I-I-I-I-I-II-II-II-II-II. The two proteins share 50% sequence identity in this repeat-containing region. The head structure formed by these 2 proteins on one end of the titin string extends into the center of the M band. The integrating structure of the sarcomere arises from muscle-specific members of the superfamily of immunoglobulin-like proteins. Alternatively spliced transcript variants encoding different isoforms have been identified. [provided by RefSeq, Jul 2008]
MYOM1 (Myomesin 1) is a Protein Coding gene. Diseases associated with MYOM1 include Hypertrophic Cardiomyopathy and Dilated Cardiomyopathy. Among its related pathways are Striated Muscle Contraction. Gene Ontology (GO) annotations related to this gene include protein homodimerization activity and structural constituent of muscle. An important paralog of this gene is MYOM2.
GO ID | Qualified GO term | Evidence | PubMed IDs |
---|---|---|---|
GO:0005515 | protein binding | IEA,IPI | 23414517 |
GO:0008307 | structural constituent of muscle | TAS | -- |
GO:0019900 | kinase binding | IBA,IPI | 12972258 |
GO:0042802 | identical protein binding | IPI | 18059477 |
GO:0042803 | protein homodimerization activity | ISS | -- |
GO ID | Qualified GO term | Evidence | PubMed IDs |
---|---|---|---|
GO:0005737 | cytoplasm | IEA | -- |
GO:0005863 | striated muscle myosin thick filament | TAS | 6537951 |
GO:0005865 | striated muscle thin filament | IBA | -- |
GO:0030017 | sarcomere | IBA | 21873635 |
GO:0030018 | Z disc | IBA | -- |
SuperPathway | Contained pathways | ||
---|---|---|---|
1 | Striated Muscle Contraction |
GO ID | Qualified GO term | Evidence | PubMed IDs |
---|---|---|---|
GO:0002074 | extraocular skeletal muscle development | IEA | -- |
GO:0006936 | muscle contraction | IBA | 21873635 |
GO:0006941 | striated muscle contraction | IBA | -- |
GO:0007015 | actin filament organization | IBA | -- |
GO:0010628 | positive regulation of gene expression | IMP | 25152160 |
This gene was present in the common ancestor of animals.
Organism | Taxonomy | Gene | Similarity | Type | Details |
---|---|---|---|---|---|
Chimpanzee (Pan troglodytes) |
Mammalia | MYOM1 30 31 |
|
OneToOne | |
Cow (Bos Taurus) |
Mammalia | MYOM1 31 |
|
OneToOne | |
Dog (Canis familiaris) |
Mammalia | MYOM1 30 31 |
|
OneToOne | |
Rat (Rattus norvegicus) |
Mammalia | Myom1 30 |
|
||
Mouse (Mus musculus) |
Mammalia | Myom1 30 17 31 |
|
OneToOne | |
Platypus (Ornithorhynchus anatinus) |
Mammalia | -- 31 |
|
OneToMany | |
-- 31 |
|
OneToMany | |||
-- 31 |
|
OneToMany | |||
-- 31 |
|
OneToMany | |||
-- 31 |
|
OneToMany | |||
Oppossum (Monodelphis domestica) |
Mammalia | MYOM1 31 |
|
OneToOne | |
Chicken (Gallus gallus) |
Aves | MYOM1 31 |
|
OneToOne | |
Lizard (Anolis carolinensis) |
Reptilia | MYOM1 31 |
|
OneToOne | |
African clawed frog (Xenopus laevis) |
Amphibia | Xl.12595 30 |
|
||
Zebrafish (Danio rerio) |
Actinopterygii | MYOM1 (2 of 2) 31 |
|
OneToMany | |
myom1a 31 |
|
OneToMany | |||
Fruit Fly (Drosophila melanogaster) |
Insecta | CG14964 31 |
|
ManyToMany | |
sls 31 |
|
ManyToMany |
SNP ID | Clinical significance and condition | Chr 18 pos | Variation | AA Info | Type |
---|---|---|---|---|---|
229013 | Uncertain Significance: not specified | 3,168,816(-) | C/CCGTTTCTGTACCA | SPLICE_ACCEPTOR_VARIANT | |
639230 | Uncertain Significance: Hypertrophic cardiomyopathy | 3,176,084(-) | A/G | MISSENSE_VARIANT | |
639967 | Uncertain Significance: Hypertrophic cardiomyopathy | 3,131,410(-) | T/C | MISSENSE_VARIANT | |
640729 | Uncertain Significance: Hypertrophic cardiomyopathy | 3,187,642(-) | A/G | INTRON_VARIANT | |
640815 | Uncertain Significance: Hypertrophic cardiomyopathy | 3,075,740(-) | T/A | MISSENSE_VARIANT |
Variant ID | Type | Subtype | PubMed ID |
---|---|---|---|
dgv1537n106 | CNV | tandem duplication | 24896259 |
esv1010829 | CNV | insertion | 20482838 |
esv2661000 | CNV | deletion | 23128226 |
esv2676971 | CNV | deletion | 23128226 |
esv2716685 | CNV | deletion | 23290073 |
esv3416065 | CNV | duplication | 20981092 |
esv3573898 | CNV | gain | 25503493 |
esv3641584 | CNV | loss | 21293372 |
esv3641585 | CNV | gain | 21293372 |
esv3641586 | CNV | gain | 21293372 |
nsv1062247 | CNV | gain | 25217958 |
nsv1065984 | CNV | loss | 25217958 |
nsv1119462 | CNV | insertion | 24896259 |
nsv1129600 | CNV | tandem duplication | 24896259 |
nsv1134689 | CNV | deletion | 24896259 |
nsv131766 | CNV | insertion | 16902084 |
nsv458013 | CNV | loss | 19166990 |
nsv474460 | CNV | novel sequence insertion | 20440878 |
nsv479501 | CNV | novel sequence insertion | 20440878 |
nsv509681 | CNV | insertion | 20534489 |
nsv576313 | CNV | loss | 21841781 |
nsv576314 | CNV | loss | 21841781 |
nsv576315 | CNV | loss | 21841781 |
Disorder | Aliases | PubMed IDs |
---|---|---|
hypertrophic cardiomyopathy |
|
|
dilated cardiomyopathy |
|
|
myopathy, myofibrillar, 5 |
|
|
apical myocardial infarction |
|
|
myopathy, spheroid body |
|
|