Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 1948 Jul;88(1):43-57.
doi: 10.1084/jem.88.1.43.

Immunochemical studies on blood groups; chemical changes associated with destruction of blood group activity and enhancement of the type XIV cross-reactivity by partial hydrolysis of hog and human blood group A, B, and O substances

E A KABAT, H BAER, et al.

Immunochemical studies on blood groups; chemical changes associated with destruction of blood group activity and enhancement of the type XIV cross-reactivity by partial hydrolysis of hog and human blood group A, B, and O substances

E A KABAT et al. J Exp Med. 1948 Jul.

Abstract

1. The effect of heating at varying pH on the cross-reactivity of hog blood group A and 0 substances with Type XIV antibody has been investigated. The hydrolysis of blood group A, B, and O substances from hog and human sources at pH 1.5-1.8 resulted in destruction of blood group activity and a marked increase in cross-reactivity with Type XIV antipneumococcus horse serum. 2. Analysis revealed the liberation of reducing sugar, most of which was dialyzable. It was further shown that the major part of the reducing sugar was fucose with small amounts of free and polymerized galactose and glucosamine. Non-glucosamine nitrogen, probably amino acids, also was found in the dialysate. 3. Paper chromatographic separation of the concentrated dialysate confirmed the presence of fucose and showed that the majority of the galactose and glucosamine occurred in polymeric form. 4. Quantitative analysis of the substances isolated from the paper showed good recovery of the various components, indicating that practically all of the material in the dialysate could be accounted for. 5. The methylpentose of human blood group A substance was identified as fucose. 6. The structure of the blood group substances is interpreted in terms of these results.

PubMed Disclaimer

References

    1. J Exp Med. 1947 May 31;85(6):685-99 - PubMed
    1. Biochem J. 1946;40(1):124-30 - PubMed
    1. J Exp Med. 1937 Mar 31;65(4):487-96 - PubMed
    1. Biochem J. 1942 Dec;36(10-12):790-1 - PubMed
    1. Biochem J. 1944;38(3):224-32 - PubMed