. 2012 Feb 1;287(13):10602–10612. doi: 10.1074/jbc.M111.317263

TABLE 3.

The lengths of hydrogen bonds (Å) between CNL and lactose or LDN

Interactions between oxygens or nitrogens of amino acid residues in CNL and oxygen atoms of lactose or LDN (O4 and O3) or carbonyl oxygen (CO) in the acetate group of LDN are presented. Values in the upper and lower lines of individual structures are those of hydrogen bond lengths in Å for both binding sites in a dimer, except in the CNL-LAC/4.4 structure, where only one lactose molecule was observed.

	Lactose/LDN O4^a		Lactose/LDN O3^a			LDN CO^a
	Asp-20 O^b	Gly-23 N^b	Asp-20 O^b	Asn-38 N^b	Asn-46 N^b	Ser-24 O^b
CNL-LAC/7.1	2.69	2.93	2.68	2.91	3.07	/
CNL-LAC/7.1	2.69	2.93	2.64	2.94	3.01	/
CNL-LAC/4.4	2.68	2.97	2.69	2.94	3.22	/
CNL-LDN	2.36	2.99	2.56	2.81	3.03	2.77
CNL-LDN	2.29	2.96	2.48	2.90	3.18	2.80

^a Interacting sugar atom.

^b Interacting amino acid atom.