ORC1 Antibody

Code CSB-PA003602
Size US$100
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  • Western Blot analysis of 3T3 cells using ORC1 Polyclonal Antibody
  • Western Blot analysis of NIH-3T3 HELA 293 cells using ORC1 Polyclonal Antibody
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Product Details

Uniprot No.
Target Names
Alternative Names
HSORC1 antibody; MmORC1 antibody; orc1 antibody; ORC1_HUMAN antibody; ORC1L antibody; Origin Recognition Complex 1 antibody; Origin recognition complex subunit 1 (yeast homolog) like antibody; Origin recognition complex subunit 1 antibody; Origin recognition complex subunit 1 homolog antibody; Origin recognition complex subunit 1 like (S. cerevisia antibody; Origin recognition complex subunit 1 like antibody; Origin recognition complex subunit 1 S. cerevisiae homolog like antibody; Origin recognition complex, subunit 1 like (yeast) antibody; PARC1 antibody; Replication control protein 1 antibody
Raised in
Rabbit
Species Reactivity
Human
Immunogen
Synthesized peptide derived from the Internal region of Human ORC1.
Immunogen Species
Homo sapiens (Human)
Conjugate
Non-conjugated
Isotype
IgG
Purification Method
The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen.
Concentration
It differs from different batches. Please contact us to confirm it.
Buffer
Liquid in PBS containing 50% glycerol, 0.5% BSA and 0.02% sodium azide.
Form
Liquid
Tested Applications
WB, ELISA
Recommended Dilution
Application Recommended Dilution
WB 1:500-1:2000
ELISA 1:5000
Troubleshooting and FAQs
Storage
Upon receipt, store at -20°C or -80°C. Avoid repeated freeze.
Lead Time
Basically, we can dispatch the products out in 1-3 working days after receiving your orders. Delivery time maybe differs from different purchasing way or location, please kindly consult your local distributors for specific delivery time.

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Target Background

Function
Component of the origin recognition complex (ORC) that binds origins of replication. DNA-binding is ATP-dependent. The DNA sequences that define origins of replication have not been identified yet. ORC is required to assemble the pre-replication complex necessary to initiate DNA replication.
Gene References into Functions
  1. The opposing effects of ORC1 (represor) and CDC6 (gene activator) in controlling the level of Cyclin E ensures genome stability and a mechanism for linking directly DNA replication and cell division commitment. PMID: 27458800
  2. The authors have discovered that human cell lines in culture proliferate with intact chromosomal origins of replication after disruption of both alleles of ORC2 or of the ATPase subunit, ORC1. PMID: 27906128
  3. Orc1 acts as a nucleating center for origin recognition complex assembly and then pre-replication complex assembly by binding to mitotic chromosomes, followed by gradual removal from chromatin during the G1 phase. PMID: 25784553
  4. ORC1 harbors a G-rich RNA/ssDNA-binding domain, which may be involved in the preferential binding to G-quadruplex-formable RNA/DNA by ORC. Structure modeling predicts the structural similarity between the G-rich RNA/ssDNA-binding domain of ORC1 and part of mammalian DNA methyltransferase 1. PMID: 24003239
  5. ORC1 associated with transcription start sites of coding or noncoding RNAs. Transcription levels at the ORC1 sites directly correlated with replication timing. PMID: 23187890
  6. results identify the BAH domain as a novel methyl-lysine-binding module, thereby establishing the first direct link between histone methylation and the metazoan DNA replication machinery, and defining a pivotal aetiological role for the canonical H4K20me2 mark, via ORC1, in primordial dwarfism PMID: 22398447
  7. Orc1 harbors a PACT centrosome-targeting domain and a separate domain that differentially inhibits the protein kinase activities of Cyclin E-CDK2 and Cyclin A-CDK2 PMID: 22855792
  8. Data show that purified Epstein-Barr nuclear antigen 1 EBNA1 recruits purified Human Orc1 and Cdc6 onto replication origin oriP. PMID: 22589552
  9. A lethal phenotype was seen in four individuals with compound heterozygous ORC1 mutations PMID: 22333897
  10. As cells moved through the cell cycle, the local-ization of ORC1 shifted, suggesting changes in thelocalization of ORC-bound origin sequences. PMID: 22045277
  11. Mutations in ORC1, encoding a subunit of the origin recognition complex, cause microcephalic primordial dwarfism resembling Meier-Gorlin syndrome. These mutations disrupt ORC1 functions including pre-replicative complex formation and origin activation. PMID: 21358633
  12. Data show that Orc1 specifically binds hypo-phosphorylated Rb and that this interaction is competitive with the binding of Rb to E2F1. PMID: 21085491
  13. in human cancer cells, RBX1 silencing causes the accumulation of DNA replication licensing proteins CDT1 and ORC1, leading to DNA double-strand breaks, DDR, G(2) arrest, and, eventually, aneuploidy PMID: 21115485
  14. a component of the origin recognition complex (ORC) that functions in DNA replication PMID: 11716535
  15. ORC2 physically interacts with ORC1 on non-chromatin nuclear structures PMID: 11779870
  16. Data suggest that hOrc1p is targeted for destruction by an SCF-Skp2 complex during S phase. PMID: 11931757
  17. ORC1 regulates the status of the ORC complex in human nuclei by tethering ORCs 2-5 to nuclear structures PMID: 12909626
  18. the ORC1 cycle in human cells is highly linked with cell cycle progression, allowing the initiation of replication to be coordinated with the cell cycle and preventing origins from refiring PMID: 12909627
  19. The precise nucleotide of binding for ORC1 was identified near the start sites for leading-strand DNA synthesis. PMID: 12912926
  20. HP1 has a role in the recruitment but not in the stable association of Orc1p with heterochromatin PMID: 15454574
  21. BAH domain in human Orc1 facilitates its ability to activate replication origins in vivo by promoting association of ORC with chromatin. PMID: 17066079
  22. Interacts with TRF2 to achieve stable binding in pre-replication complex assembly at telomeres. These data suggest that ORC might be involved in telomere homeostasis in human cells. PMID: 18761675
  23. data suggest that Orc1 is a regulator of centriole and centrosome reduplication as well as the initiation of DNA replication PMID: 19197067

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Involvement in disease
Meier-Gorlin syndrome 1 (MGORS1)
Subcellular Location
Nucleus.
Protein Families
ORC1 family
Database Links

HGNC: 8487

OMIM: 224690

KEGG: hsa:4998

STRING: 9606.ENSP00000360621

UniGene: Hs.17908

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