Agkistrodon contortrix subspecies Agkistrodon contortrix contortrix 668337, 670960 Agkistrodon contortrix subspecies Agkistrodon contortrix contortrix, southern copperhead snake 668819 Agkistrodon contortrix contortrix - 31471, 31472, 31473, 31475, 31476, 31478, 31480, 31481, 31482, 31483, 697595, 720980 Agkistrodon contortrix contortrix 2 isoforms: fib1 and fib2 31477 Agkistrodon contortrix contortrix gene alf 684027 Agkistrodon contortrix contortrix southern copperhead snake 649080, 684034, 684096, 684097, 721082 Agkistrodon contortrix contortrix southern copperhead, isoforms of natural and recombinant enzyme 31474 Agkistrodon contortrix contortrix southern copperhead, isoforms of natural and recombinant enzyme (resolution by high performance capillary electrophoresis) 31479 Bacillus amyloliquefaciens - 752419, 754580, 755226 Bacillus amyloliquefaciens CGMCC 7380 - 752419