Host Cell Factor 1/HCFC1 Antibody [Alexa Fluor® 405]

• Reactivity: Hu
• Applications: WB, IHC, ICC/IF
• Clonality: Polyclonal
• Host: Goat
• Conjugate: Alexa Fluor 405

Host Cell Factor 1/HCFC1 Antibody [Alexa Fluor® 405] Summary

• Immunogen: E. coli-derived recombinant human Host Cell Factor 1/HCFC1
  Ala1626-Val1836
  Accession # P51610
• Specificity: Detects human Host Cell Factor 1/HCFC1 in Western blots.
• Isotype: IgG
• Clonality: Polyclonal
• Host: Goat
• Purity Statement: Antigen Affinity-purified

Applications/Dilutions

• Dilutions:
  • Immunocytochemistry
  • Immunohistochemistry
  • Western Blot

Packaging, Storage & Formulations

• Storage: Protect from light. Do not freeze. 12 months from date of receipt, 2 to 8 °C as supplied
• Buffer: Supplied 0.2mg/ml in 1X PBS with RDF1 and 0.09% Sodium Azide

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for Host Cell Factor 1/HCFC1 Antibody [Alexa Fluor® 405]

• C1 Factor
• CFF
• CFFC1 factor
• HCF
• HCF1
• HCF1HFC1
• HCF-1VP16 accessory protein
• HCFC1
• HFC1
• host cell factor C1 (VP16-accessory protein)
• MGC70925
• VCAFhost cell factor 1

Background

HCF-1 (Host cell factor; also called C1 factor and VCAF) is a blanket name for a group of polypeptides that are generated through the targeted proteolysis of a large 300 kDa transcriptional coactivator precursor. The precursor is widely expressed, and its products are posited to participate in multiple activities, such as mRNA processing, transcriptional coactivation, and cell cycle progression through G0/G1 transition. Human HCF-1 is 2035 amino acids (aa) in length. It is modular in structure, and contains a Kelch-repeat region (aa 32-313), an SP1/GABP basic binding sequence (aa 478-875), an acidic transactivation domain (aa 1530-1735), and a C-terminal NLS-containing Trp/Tyr/Phe-rich region (aa 1760-2035). Situated between the basic and acidic regions is an HCF repeat region (aa 1010-1439) that contains six 26 aa repeats that undergo autocatalytic cleavage. HCF-1 is O-glycosylated, phosphorylated and acetylated. In quiescent cells, the full-length 300 kDa precursor can be found in the cytoplasm, along with a presumed 50 kDa fragment that appears to represent some sequence between aa 300-1000. In activated cells, HCF-1 appears in the nucleus, and undergoes autocatalysis at one or more sites occurs distal to Glu at position 1019, 1081, 1110, 1295, 1323, and 1423. This generates multiple fragments that noncovalently associate with each other and appear as bands in SDS-Page that range from 100-175 kDa in size. This association is quite vigorous and requires aggressive treatment to achieve denaturation. There is one potential isoform that contains an alternative start site at Met100, a second isoform that shows a deletion of aa 1072-1101, a third isoform that exhibits a Leu substitution for aa 428-2035, and a final isoform that shows a deletion of aa 382-450. Over aa 1626-1836, human HCF-1 shares 95% aa identity with mouse HCF-1.

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.