Table 1. Primers used for cloning in the present study.

Primer	Position of 5′base	Sequence	Reference
CTLA-4-1	1	5′-gaa gct tat ggc ttg tct tgg act c-3′	AF130428
CTLA-4-2	483	5′-gga tat cat cag aat ctg ggc atg g-3′	AF130428
CD27-1	178	5′-cta ggt acc atg gca tgg cc acct ccc-3′	L24495
CD27-2	714	5′-cta gat atc gtc cga gct gca cag ggg-3′	L24495
CD40L-1	13	5′-cta ggt acc atg ata gaa aca tac agc-3′	X65453
CD40L-2	792	5′-cta gat atc gag ttt gag taa gcc aaa-3′	X65453
HBcP-1	1284	5′-gat atc atg gac atc gac cct tat-3′	V01460
HBcP-2	736	5′-ctc gag aca ttg aga ttc ccg aga-3′	V01460
HBeP-1	1371	5′-gat atc atg caa ctt ttt cac ctc t-3′	V01460

Reference: the Genbank accession numbers of the used reference sequences are given.

The 5′ extensions were added to the primers for cloning and are indicted as italic letters.