Abstract
The binding patterns of human blood group Sd(a+) and Sd(a-) Tamm- Horsfall glycoproteins (THGPs) with respect to four GalNAc specific agglutinins were studied by quantitative precipitin assay (QPA) and enzyme linked lectinosorbent assay (ELLSA). Of the native and asialo Sd(a+) and Sd(a-) THGP tested by QPA and ELLSA, only native and asialo Sd(a+) bound well with Dolichos biflorus (DBA) and Vicia villosa-B4 (VVA-B4), while Sd(a-) THGP reacted poorly with these two lectins. Neither Sd(a+) nor Sd(a-) THGPs reacted with two other GalNAc α-anomer specific lectins: Codium fragile subspecies tomentosoides and Artocarpus integrifolia. Furthermore, the binding of asialo Sd(a+)THGP-VVA-B4 and native Sd(a+)THGP-DBA through GalNAcβ→ was confirmed by inhibition assay. These results demonstrate that DBA and VVA-B4 are useful reagents to differentiate between Sd(a+) and Sd(a- ) THGP.
| Original language | English |
|---|---|
| Pages (from-to) | 323-326 |
| Number of pages | 4 |
| Journal | FEBS Letters |
| Volume | 429 |
| Issue number | 3 |
| DOIs | |
| State | Published - 16 06 1998 |
Keywords
- Binding properties of GalNAc specific lectins
- Native and asialo-Tamm- Horsfall glycoproteins