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Phospho-Smc1(S957) Antibody Blocking peptide

Synthetic peptide

Product Information
Primary Accession Q14683
Clone Names 5030253
Peptide ID 5030253
Additional Information
Gene ID 8243
Other Names Structural maintenance of chromosomes protein 1A, SMC protein 1A, SMC-1-alpha, SMC-1A, Sb18, SMC1A, DXS423E, KIAA0178, SB18, SMC1, SMC1L1
Target/Specificity The synthetic peptide sequence used to generate the antibody AP3252a was selected from the 950-964 region of human Phospho-Smc1-S957. A 10 to 100 fold molar excess to antibody is recommended. Precise conditions should be optimized for a particular assay.
Format The synthetic peptide was lyophilized with 100% acetonitrile and is supplied as a powder. Reconstitute with 0.1 ml deionized water for a final concentration of 1 mg/ml.
StorageMaintain refrigerated at 2-8°C for up to 6 months. For long term storage store at -20°C.
PrecautionsThis product is for research use only. Not for use in diagnostic or therapeutic procedures.
Protein Information
Name SMC1A
Synonyms DXS423E, KIAA0178, SB1.8, SMC1, SMC1L1
Function Involved 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.
Cellular Location Nucleus. Chromosome. Chromosome, centromere, kinetochore. Note=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
Research Areas
Citations (0)

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Proper cohesion of sister chromatids is a prerequisite for the correct segregation of chromosomes during cell division. The cohesin multiprotein complex is required for sister chromatid cohesion. This complex is composed partly of two structural maintenance of chromosomes (SMC) proteins, SMC3 and either SMC1L2 or the protein encoded by this gene. Most of the cohesin complexes dissociate from the chromosomes before mitosis, although those complexes at the kinetochore remain. Therefore, the encoded protein is thought to be an important part of functional kinetochores. In addition, this protein interacts with BRCA1 and is phosphorylated by ATM, indicating a potential role for this protein in DNA repair. This gene, which belongs to the SMC gene family, is located in an area of the X-chromosome that escapes X inactivation.


Yazdi, P.T., et al., Genes Dev. 16(5):571-582 (2002).Gregson, H.C., et al., Chromosome Res. 10(4):267-277 (2002).Gregson, H.C., et al., J. Biol. Chem. 276(50):47575-47582 (2001).Sumara, I., et al., J. Cell Biol. 151(4):749-762 (2000).Schmiesing, J.A., et al., Proc. Natl. Acad. Sci. U.S.A. 95(22):12906-12911 (1998).

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$ 80.00
Cat# BP3252a
(40 western blots)
Availability: In Stock
Bulk Size
Seasonal Special on Bulk Order
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