Table 4.

Topology and secondary structure comparison of 1NEK chain C and chain D with KPN00728 and KPN00729

Secondary structure	Residue number Start–End
	1NEK chain C	KPN00728	1NEK chain D	KPN00729
Helix
1	22–53	22–53	12–38	10–38
2	55–65	55–66	45–53	43–51
3	68–96	68–96	55–83	53–81
4	103–128	103–128	88–114	85–112
Topology
Cytoplasmic loop	1–31	1–31	1–20	1–20
Transmembrane	32–52	32–52	21–41	21–41
External loop	53–61	53–68	42–58	42–58
Transmembrane	62–82	69–89	59–79	59–79
Cytoplasmic loop	83–108	90–108	80–94	80–94
Transmembrane	109–129	109–129	95–115	95–115

Total of 4 helix regions had been identified among them. Similar arrangement of secondary structure topology is also shown between the 1 NEK (template) and KPN00728 and KPN00729