SPEG

For the botanist with taxonomic author abbreviation Speg., see Carlo Luigi Spegazzini.

Striated muscle preferentially expressed protein kinase, in the human is encoded by the SPEG gene, a member of the myosin light-chain kinase protein family.^[5][6][7] SPEG is involved in the development of the muscle cell cytoskeleton,^[5] and the expression of this gene has important roles in the development of skeletal muscles, and their maintenance and function.^[7] Mutations are associated with centronuclear myopathies a group of congenital disorders where the cell nuclei are abnormally centrally placed.^[8]

SPEG
Available structures PDB Ortholog search: PDBe RCSB List of PDB id codes 1U2H
Identifiers
Aliases	SPEG, APEG-1, APEG1, BPEG, SPEGalpha, SPEGbeta, CNM5, SPEG complex locus, MYLK6, striated muscle enriched protein kinase
External IDs	OMIM: 615950; MGI: 109282; HomoloGene: 55619; GeneCards: SPEG; OMA:SPEG - orthologs
Gene location (Human) Chr. Chromosome 2 (human)[1] Band 2q35 Start 219,434,843 bp[1] End 219,493,629 bp[1]
Gene location (Mouse) Chr. Chromosome 1 (mouse)[2] Band 1 C4|1 38.88 cM Start 75,375,297 bp[2] End 75,432,320 bp[2]
RNA expression pattern Bgee Human Mouse (ortholog) Top expressed in popliteal artery tibial arteries right coronary artery Descending thoracic aorta ascending aorta gastric mucosa body of uterus left uterine tube muscle layer of sigmoid colon left coronary artery Top expressed in ascending aorta aortic valve external carotid artery internal carotid artery tunica media of zone of aorta muscle of thigh Epithelium of choroid plexus right ventricle triceps brachii muscle superior surface of tongue More reference expression data BioGPS n/a
Gene ontology Molecular function transferase activity nucleotide binding protein serine/threonine kinase activity protein kinase activity protein binding ATP binding kinase activity Cellular component nucleus Biological process protein phosphorylation muscle cell differentiation muscle organ development cell differentiation phosphorylation negative regulation of cell population proliferation Sources:Amigo / QuickGO
Orthologs Species Human Mouse Entrez 10290 11790 Ensembl ENSG00000072195 ENSMUSG00000026207 UniProt Q15772 Q62407 RefSeq (mRNA) NM_001173476 NM_005876 NM_001085370 NM_001085371 NM_001173477 NM_007463 RefSeq (protein) NP_001166947 NP_005867 NP_001078839 NP_001078840 NP_001166948 NP_031489 Location (UCSC) Chr 2: 219.43 – 219.49 Mb Chr 1: 75.38 – 75.43 Mb PubMed search [3] [4]
Wikidata
View/Edit Human View/Edit Mouse

In the mouse this gene is called SPEG complex locus.^[9] Expression of this gene is thought to serve as a marker for differentiated vascular smooth muscle cells which may have a role in regulating growth and differentiation of this cell type. The encoded protein is highly similar to the corresponding rat and mouse proteins. Multiple alternatively spliced transcript variants have been found for this gene, but the full-length nature of only one variant has been defined.

Mouse Mutant Alleles for Speg
Marker Symbol for Mouse Gene. This symbol is assigned to the genomic locus by the MGI	Speg
Mutant Mouse Embryonic Stem Cell Clones. These are the known targeted mutations for this gene in a mouse.	Spegtm1a(KOMP)Wtsi
Example structure of targeted conditional mutant allele for this gene
Molecular structure of Speg region with inserted mutation sequence
These Mutant ES Cells can be studied directly or used to generate mice with this gene knocked out. Study of these mice can shed light on the function of Speg: see Knockout mouse