Cytoglobin (Histoglobin)

Cytoglobin(CYGB),also called HGB or STAP, is a ubiquitously expressed hexacoordinate hemoglobin that may facilitate diffusion of oxygen through tissues, scavenge nitric oxide or other reactive oxygen species, or serve a protective function during oxidative stress. The cytoglobin gene is mapped on 17q25.1. The CYGB gene contains 4 exons and spans about 9 kb. Cytoglobin has many elements common to vertebrate globins, including invariant histidine residues, and the amino acids that form the heme pocket share similarity with pentacoordinate myoglobin. In contrast to the high oxygen affinities displayed by most hexacoordinate hemoglobins, the characteristics of CYGB indicate that it can facilitate oxygen transport. Because the oxygen affinity of CYGB is more similar to myoglobin than to neuroglobin, and the oxy form of CYGB resists autooxidation, CYGB is proposed to represent a tissue oxygen reservoir by Sawai et al.\n\nUniProt Number:\nQ8WWM9\n\nGene ID:\nCYGB\n\nApplications:\nSuitable for use in Western Blot.\n\nRecommended Dilution:\nOptimal dilutions to be determined by the researcher.\n\nStorage and Handling:\nStore at -20?C for one year. After reconstitution, store at 4?C for one month. Can also be aliquoted and stored frozen at -20?C for long term.\nAvoid repeated freezing and thawing. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.

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SPECIFICATIONS

Catalog Number

144433

Size

100ug

Applications

WB

Hosts

Rabbit

Reactivities

Hum, Rat

Form

Supplied as a lyophilized powder. Each vial contains 5mg BSA, 0.9mg NaCl, 0.2mg Na2HPO4, 0.05mg Thimerosal, 0.05mg NaN3. Reconstitution: Add 0.2ml of distilled water will yield a concentration of 500ug/ml.

P Type

Pab

Purity

Purified by immunoaffinity chromatography.

Isotype

IgG

References

1. Asahina, K., Kawada, N., Kristensen, D. B., Nakatani, K., Seki, S., Shiokawa, M., Tateno, C., Obara, M., Yoshizato, K. Characterization of human stellate cell activation-associated protein and its expression in human liver. Biochim. Biophys. Acta 1577: 471-475, 2002.\n2. Burmester, T., Ebner, B., Weich, B., Hankeln, T. Cytoglobin: a novel globin type ubiquitously expressed in vertebrate tissues. Molec. Biol. Evol. 19: 416-421, 2002.\n3. Geuens, E., Brouns, I., Flamez, D., Dewilde, S., Timmermans, J.-P., Moens, L. A globin in the nucleus! J. Biol. Chem. 278: 30417-30420, 2003.\n

Additional Info

Recognizes human and rat Cytoglobin. No crossreactivity with other proteins.