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Rabbit Anti-smooth muscle Myosin heavy chain 11/FITC Conjugated antibody
background:
The protein encoded by this gene is a smooth muscle myosin belonging to the myosin heavy chain family. The gene product is a subunit of a hexameric protein that consists of two heavy chain subunits and two pairs of non-identical light chain subunits. It functions as a major contractile protein, converting chemical energy into mechanical energy through the hydrolysis of ATP. The gene encoding a human ortholog of rat NUDE1 is transcribed from the reverse strand of this gene, and its 3' end overlaps with that of the latter. The pericentric inversion of chromosome 16[inv(16)(p13q22)] produces a chimeric transcript that encodes a protein consisting of the first 165 residues from the N terminus of core-binding factor beta in a fusion with the SLCterminal portion of the smooth muscle myosin heavy chain. This chromosomal rearrangement is associated with acute myeloid leukemia of the M4Eo subtype. Alternative splicing generates isoforms that are differentially expressed, with ratios changing during muscle cell maturation. Alternatively spliced transcript variants encoding different isoforms have been identified.
MYH11 is a smooth muscle myosin belonging to the myosin heavy chain family. It is a subunit of a hexameric protein that consists of two heavy chain subunits and two pairs of non-identical light chain subunits. It functions as a major contractile protein, converting chemical energy into mechanical energy through the hydrolysis of ATP.
Function:
Muscle contraction.
Subunit:
Muscle myosin is a hexameric protein that consists of 2 heavy chain subunits (MHC), 2 alkali light chain subunits (MLC) and 2 regulatory light chain subunits (MLSLC2).
Subcellular Location:
Melanosome. Note=Identified by mass spectrometry in melanosome fractions from stage I to stage IV. Thick filaments of the myofibrils.
Tissue Specificity:
Smooth muscle; expressed in the umbilical artery, bladder, esophagus and trachea.
DISEASE:
Note=A chromosomal aberration involving MYH11 is found in acute myeloid leukemia of M4EO subtype. Pericentric inversion inv(16)(p13;q22). The inversion produces a fusion protein consisting of the 165 N-terminal residues of CSF-beta (PEPB2) and the tail region of MYH11.
Familial aortic aneurysm thoracic 4 (AAT4) [MIM:13580]: A disease characterized by permanent dilation of the thoracic aorta usually due to degenerative changes in the aortic wall. It is primarily associated with a characteristic histologic appearance known as 'medial necrosis' or 'Erdheim cystic medial necrosis' in which there is degeneration and fragmentation of elastic fibers, loss of smooth muscle cells, and an accumulation of basophilic ground substance. Note=The disease is caused by mutations affecting the gene represented in this entry.
Similarity:
Contains 1 IQ domain. Contains 1 myosin head-like domain.
Database links:
Entrez Gene: 4629 Human
Entrez Gene: 17176 Mouse
Entrez Gene: 24582 Rat
Omim: 160745 Human
SwissProt: P35749 Human
SwissProt: O08638 Mouse
SwissProt: P35748 Rabbit
SwissProt: Q63862 Rat
Unigene: 92109 Human
Unigene: 250705 Mouse
Unigene: 94969 Rat
Important Note:
This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.
平滑肌肌球蛋白重链是分子量为200kDa的多肽，是六聚肌球蛋白的结构成分。主要用于标记血管和内脏平滑肌细胞以及肌上皮细胞，被认为是平滑肌较为特异和可靠的标志，有助于间叶肿瘤的诊断和分类，也可用于乳腺肌上皮细胞的检测，有助于原位癌和浸润癌的区别鉴定。
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