Binding +; No binding -. 12A-12 F are Carrageenan repeats; 12G-13E are digested Glycoaminoglycans in their most basic non-repeating unit (12G ΔUA-2S → GlcNS-6S Na4 (I-S); 12H ΔUA → GlucNS-6S Na3 (II-S); 12I ΔUA → 2S-GlcNS Na3 (III-S); 12 J ΔUA → 2S-GlcNAc-6S Na3 selleck screening library (I-A); 12 K ΔUA → GlcNAc-6S Na2 (II-A); 12 L ΔUA →
2S-GlcNAc Na2 (III-A); 12 M ΔUA → GlcNAc Na (IV-A); 12 N ΔUA → GalNAc-4S Na2 (ΔDi-4S); 12O ΔUA → GalNAc-6S Na2 (ΔDi-6S); 12P ΔUA → GalNAc-4S,6S Na3 (ΔDi-disE); 13A ΔUA → 2S-GalNAc-4S Na2 (ΔDi-disB); 13B ΔUA → 2S-GalNAc-6S Na3 (ΔDi-disD); 13C ΔUA → 2S-GalNAc-4S-6S Na4 (ΔDi-tisS); 13D ΔUA → 2S-GalNAc-6S Na2 (ΔDi-UA2S); 13E ΔUA → GlcNAc Na (ΔDi-HA); 13 F-14I are larger repeating Glycoaminoglycans ranging from 4mers to 1.6MDa in size (13 F (GlcAβ1-3GlcNAcβ1-4)n (n = 4); 13G (GlcAβ1-3GlcNAcβ1-4)n (n = 8); 13H. (GlcAβ1-3GlcNAcβ1-4)n (n = 10); 13I (GlcAβ1-3GlcNAcβ1-4)n (n = 12); selleck compound 13 J (GlcA/IdoAα/β1-4GlcNAcα1-4)n (n = 200); 13 K (GlcA/IdoAβ1-3(±4/6S)GalNAcβ1-4)n (n < 250);
13 L ((±2S)GlcA/IdoAα/b1-3(±4S)GalNAcβ1-4)n (n < 250);13 M (GlcA/IdoAβ1-3(±6S)GalNAcβ1-4)n (n < 250); 13 N (GlcAβ1-3GlcNAcβ1-4)n (n = 4); 130 (GlcAβ1-3GlcNAcβ1-4)n (n = 6); 13P (GlcAβ1-3GlcNAcβ1-4)n (n = 8); 14A (GlcAβ1-3GlcNAcβ1-4)n (n = 10); 14B (GlcAβ1-3GlcNAcβ1-4)n (n = 12); 14C (GlcAβ1-3GlcNAcβ1-4)n (n = 14); 14D(GlcAβ1-3GlcNAcβ1-4)n (n = 16); 14E (GlcAβ1-3GlcNAcβ1-4)n (30000 Da); 14 F (GlcAβ1-3GlcNAcβ1-4)n (107000 Da); 14G (GlcAβ1-3GlcNAcβ1-4)n (190000 Da); 14H (GlcAβ1-3GlcNAcβ1-4)n (220000 Da); 14I (GlcAβ1-3GlcNAcβ1-4)n (1600000 Da); 14 J (GlcA/IdoAα/ IdoASα/β1-4GlcNAc/GlcNS/GlcNAc6Sα1-4)n; 14 K (Glcβ1-4Glc)n; see Additional file 1: Table S1 for full list of glycan names and structures). All 5-FU datasheet but two of the strains, C. jejuni 331 and 520, bound all galactose Selleckchem Copanlisib structures present on the array
(Table 1). The chicken isolate C. jejuni 331 recognised the least number of terminal galactose structures only recognising 15 of the 24 printed structures. Of the nine terminal galactose structures that C. jejuni 331 fails to recognise, seven are disaccharides and no binding was observed to disaccharides containing GalNAc residues. Human isolate C. jejuni 520 failed to bind two structures; one was asialo-GM1 (1 F) and a terminal α-1-4 linked galactose (1 K), both these structures offer unique terminal glycans, with no other glycan present on the array presenting the same structure on the reducing end (Table 1). Most variability was observed in binding to N-acetylglucosamine (Table 2; 4A-4E), mannosylated (Table 2; 5A-5H) and sialylated (Table 3; 10A-11D) glycans, with different strains recognising variable subsets of each of these structures.