Further Information
Izumo sperm-egg fusion 1, IZUMO, Izumo sperm-egg fusion protein 1, Oocyte binding/fusion factor, OBF, Sperm-specific protein izumo
IZUMO1 antibody can be used for detection of IZUMO1 by Western blot at 1 - 2 μg/ml. Antibody can also be used for immunohistochemistry starting at 2.5 μg/mL.
Antibody validated: Western Blot in human samples and Immunohistochemistry in human samples. All other applications and species not yet tested.
IZUMO1, a sperm-specific protein, is essential for sperm-egg plasma membrane binding and fusion. It is involved in the fertilization process and in the fusion of the sperm with the egg (1,2). IZUMO1 is expressed as at least four isoforms produced by alternative splicing and contains one Ig-like (immunoglobulin-like) C2-type domain (3). Lack of IZUMO1 in males, due to homozygous mutation in the gene that encodes IZUMO1, results in sterility due to an inability to penetrate the plasma membrane of the egg (4).
- Inoue N, Hamada D, Kamikubo H, et al. Molecular dissection of IZUMO1, a sperm protein essential for sperm-egg fusion. Development 2013; 140:3221-9.
- Inoue N, Ikawa M, and Okabe M. The mechanism of sperm-egg interaction and the involvement of IZUMO1 in fusion. Asian J. Androl. 2011; 13:81-7.
- Xing WJ, Han BD, Wu Q, et al. Molecular cloning and characterization of Izumo1 gene from sheep and cashmere goat reveal alternative splicing. Mol. Biol. Rep. 2011; 38:1995-2006.
- Inoue N, Ikawa M, Isotani A, et al. The immunoglobulin superfamily protein Izumo is required for sperm to fuse with eggs. Nature 2005; 434:234-8.
IZUMO1 antibody is supplied in PBS containing 0.02% sodium azide.
1 mg/mL
Unconjugated
Optimal dilutions/concentrations should be determined by the end user. The information provided is a guideline for product use. This product is for research use only.
Predicted species reactivity based on immunogen sequence: Rat: (82%), Mouse: (81%)
IZUMO1 antibody was raised against an 18 amino acid peptide near the center of human IZUMO1.
The immunogen is located within amino acids 170 - 220 of IZUMO1.
Molecular Weight Explanation:
transmembrane protein, also multiple other IZUMO1 antibodies also show a ~52kD band
284359
izumo sperm-egg fusion 1
IZUMO1
homo sapiens
Liquid
PREDICTED MOLECULAR WEIGHT:
Predicted: 35, 39, 42 kDa
Observed: 52 kDa
NP_872381
194097475
IZUMO1 antibody is affinity chromatography purified via peptide column.
Stem Cell
IZUMO1 antibody is human specific. At least four isoforms of IZUMO1 are known to exist; this antibody will detect the two longest isoforms.
Q8IYV9
Optimal dilutions for each application to be determined by the researcher.