Key features and details
- Rabbit polyclonal to SMC1A (phospho S957)
- Suitable for: WB
- Reacts with: Human
- Isotype: IgG
Product nameAnti-SMC1A (phospho S957) antibody
See all SMC1A primary antibodies
DescriptionRabbit polyclonal to SMC1A (phospho S957)
Tested applicationsSuitable for: WBmore details
Species reactivityReacts with: Human
Predicted to work with: Rabbit, Guinea pig, Cow, Dog, Pig, Ferret, Rhesus monkey, Orangutan, Elephant
Synthetic peptide corresponding to SMC1A conjugated to keyhole limpet haemocyanin.
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Storage instructionsShipped at 4°C. Upon delivery aliquot and store at -20°C. Avoid freeze / thaw cycles.
Storage bufferpH: 7
Preservative: 0.1% Sodium azide
Constituents: 0.021% PBS, 1.764% Sodium citrate, 1.815% Tris
Concentration information loading...
PurityImmunogen affinity purified
Purification notesAntibodies that were not phospho-specific were removed by solid phase absorption. Antibodies specific for SMC1A pSer957 were affinity purified using the phosphopeptide immobilized on solid support. Antibody concentration was determined by extinction coefficient: absorbance at 280nm of 1.4 equals 1.0 mg of IgG.
Our Abpromise guarantee covers the use of ab1275 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
|WB||1/200 - 1/2000. Detects a band of approximately 160 kDa (predicted molecular weight: 143 kDa).|
FunctionInvolved in chromosome cohesion during cell cycle and in DNA repair. Central component of cohesin complex. The cohesin complex is required for the cohesion of sister chromatids after DNA replication. The cohesin complex apparently forms a large proteinaceous ring within which sister chromatids can be trapped. At anaphase, the complex is cleaved and dissociates from chromatin, allowing sister chromatids to segregate. The cohesin complex may also play a role in spindle pole assembly during mitosis. Involved in DNA repair via its interaction with BRCA1 and its related phosphorylation by ATM, or via its phosphorylation by ATR. Works as a downstream effector both in the ATM/NBS1 branch and in the ATR/MSH2 branch of S-phase checkpoint.
Involvement in diseaseDefects in SMC1A are the cause of Cornelia de Lange syndrome type 2 (CDLS2) [MIM:300590]; also known as Cornelia de Lange syndrome X-linked. CDLS is a clinically heterogeneous developmental disorder associated with malformations affecting multiple systems. CDLS is characterized by facial dysmorphisms, abnormal hands and feet, growth delay, cognitive retardation and various other malformations including gastroesophageal dysfunction and cardiac, ophthalmologic and genitourinary anomalies.
Sequence similaritiesBelongs to the SMC family. SMC1 subfamily.
DomainThe flexible hinge domain, which separates the large intramolecular coiled coil regions, allows the heterotypic interaction with the corresponding domain of SMC3, forming a V-shaped heterodimer. The two heads of the heterodimer are then connected by different ends of the cleavable RAD21 protein, forming a ring structure.
modificationsPhosphorylated by ATM upon ionizing radiation in a NBS1-dependent manner. Phosphorylated by ATR upon DNA methylation in a MSH2/MSH6-dependent manner. Phosphorylation of Ser-957 and Ser-966 activates it and is required for S-phase checkpoint activation.
Cellular localizationNucleus. Chromosome. Chromosome > centromere > kinetochore. Associates with chromatin. Before prophase it is scattered along chromosome arms. During prophase, most of cohesin complexes dissociate from chromatin probably because of phosphorylation by PLK, except at centromeres, where cohesin complexes remain. At anaphase, the RAD21 subunit of the cohesin complex is cleaved, leading to the dissociation of the complex from chromosomes, allowing chromosome separation. In germ cells, cohesin complex dissociates from chromatin at prophase I, and may be replaced by a meiosis-specific cohesin complex. The phosphorylated form on Ser-957 and Ser-966 associates with chromatin during G1/S/G2 phases but not during M phase, suggesting that phosphorylation does not regulate cohesin function. Integral component of the functional centromere-kinetochore complex at the kinetochore region during mitosis.
- Information by UniProt
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ab1275 has been referenced in 4 publications.
- Mehta K et al. Human papillomaviruses activate and recruit SMC1 cohesin proteins for the differentiation-dependent life cycle through association with CTCF insulators. PLoS Pathog 11:e1004763 (2015). WB, IP ; Human . PubMed: 25875106
- Horejsí Z et al. Distinct functional domains of Nbs1 modulate the timing and magnitude of ATM activation after low doses of ionizing radiation. Oncogene 23:3122-7 (2004). PubMed: 15048089
- Lukas C et al. Distinct spatiotemporal dynamics of mammalian checkpoint regulators induced by DNA damage. Nat Cell Biol 5:255-60 (2003). PubMed: 12598907
- Yazdi PT et al. SMC1 is a downstream effector in the ATM/NBS1 branch of the human S-phase checkpoint. Genes Dev 16:571-82 (2002). PubMed: 11877377