TABLE 2.

Lectin and antibody binding patterns in human Peyer’s patch and cecum

Specificity	Lectin or antibodya	Reactivityb of apical membranes of:
		Normal PPc		UC PP		Normal cecum
		M cells	Enterocytese	M cells	Enterocytes	M cells	Enterocytes
l-Fucose	UEA I, AAA, LTA	−	+	+	+	+	+
	OPA	+	+	+	+	+	+
d-GalNAc	VVA	−	−/+f	+	+	+	+
	DBA	−	−	+g	+h	−	−
	SBA	−	−/+f	+	+	+	+
	HPA	−	−/+f	−	−	−	−
	WFA, GS I-A4	−	+	NDd	ND	+	+
	WBA I	−	−	ND	ND	−	−
d-GlcNAc	GS II	−	−/+i	+	+	+	+
	LEA, UEA II	−	−/+f	+	+	+	+
	STA	−/+f	+	+	+	+	+
	WGA	−	−/+f	−	−	+	+
d-Galactose	Jacalin	+	+	+	+	+	+
	RCA I, GS I-B4	+/−j	−/+f	+	+	+	+
	PNA	−	−/+f	+	+	+	+
	ECA, BPA	−	+	+	+	+	+
	MAL I	−	−	ND	ND	+	+
d-Mannose, d-glucose	LCA	+k	+k	+	+	+	+
	GNA	+k	+k	ND	ND	+	+
Sialic acid	LFA, MAL II	−	−	−	−	+	+
	SNA	−	+l	−	+l	+	+
Complex	EEA, WBA II	−	−	−	−	+	+
	SJA	−	−/+f	−	−h	−	−
Monoclonal antibodies	Anti-blood group A	−	−m	−	−	−	−
	Anti-blood groups B, H-1	−	−	−	−	−	−
	Anti-blood group H-2	−	−	−	−	+	+
	Anti-Lewis A	+	+	ND	ND	+	+
	Anti-Lewis X	−	+	ND	ND	+	+
	Anti-Lewis B	−	+/−n	−	−	+	+
	Anti-Lewis Y	−	−	−	−	+	+
	Anti-sialyl Lewis A	+	−o	+	−	+p	−
	Anti-sialyl Lewis X	−	−	ND	ND	−	−

^aSee lectin abbreviations and probe specificities in the text. 

^bDifferences in reactivities are explained in footnotes. 

^cPP, Peyer’s patch. 

^dND, not determined. 

^eRefers to villus and FAE enterocytes. 

^fNegative in type O individual, positive in type A individual. 

^gFew (<20%) M cells were stained. 

^hFew villus enterocytes were stained. 

ⁱFew (<20%) enterocytes were stained in the type A individual. 

^jPositive in type O individual, negative in type A individual. 

^kNot tested on type O individual. 

^lA subpopulation (<90%) of FAE enterocytes was positive; few (<20%) villus enterocytes were stained. 

^mFew (<5%) enterocytes were stained in the type A individual. 

ⁿFew (<20%) enterocytes were stained in the type O individual. 

^oFew (<20%) FAE enterocytes were positive. 

^pFew (≤5%) M cells were stained.