Homo sapiens Protein: SMTNL1
Summary
InnateDB Protein IDBP-231366.6
Last Modified 2014-10-13 [Report errors or provide feedback]
Gene Symbol SMTNL1
Protein Name smoothelin-like 1
Synonyms
Species Homo sapiens
Ensembl Protein ENSP00000382108
InnateDB Gene IDBG-231364 (SMTNL1)
Protein Structure
UniProt Annotation
Function Plays a role in the regulation of contractile properties of both striated and smooth muscles. When unphosphorylated, may inhibit myosin dephosphorylation. Phosphorylation at Ser-299 reduces this inhibitory activity (By similarity). {ECO:0000250}.
Subcellular Localization Cytoplasm, myofibril {ECO:0000269PubMed:18310078}. Cytoplasm, myofibril, sarcomere, I band {ECO:0000250}. Cytoplasm, myofibril, sarcomere, M line {ECO:0000250}. Nucleus {ECO:0000250}. Note=Colocalizes with MYH2. In its unphosphorylated state, localizes to the cytoplasm (By similarity). Phosphorylation at Ser-301 promotes translocation to the nucleus (By similarity). {ECO:0000250}.
Disease Associations
Tissue Specificity Expressed in striated muscles, specifically in type 2a fibers (at protein level). {ECO:0000269PubMed:18310078, ECO:0000269PubMed:20634291}.
Comments
Interactions
Number of Interactions This gene and/or its encoded proteins are associated with 0 experimentally validated interaction(s) in this database.
Gene Ontology

Molecular Function
Accession GO Term
GO:0005515 protein binding
GO:0005516 calmodulin binding
Biological Process
GO:0045907 positive regulation of vasoconstriction
GO:0045908 negative regulation of vasodilation
Cellular Component
GO:0005634 nucleus
GO:0005737 cytoplasm
GO:0031430 M band
GO:0031674 I band
GO:0043292 contractile fiber
Protein Structure and Domains
PDB ID
InterPro IPR001715 Calponin homology domain
IPR022613 Calmodulin-regulated spectrin-associated protein, CH domain
PFAM PF00307
PF11971
PRINTS
PIRSF
SMART SM00033
TIGRFAMs
Post-translational Modifications
Modification
Cross-References
SwissProt A8MU46
PhosphoSite PhosphoSite-
TrEMBL
UniProt Splice Variant
Entrez Gene 219537
UniGene Hs.68756
RefSeq
HUGO HGNC:32394
OMIM 613664
CCDS
HPRD
IMGT
EMBL AP002893
GenPept