Homologs of GFF1739 from Xanthobacter sp. DMC5
Putrescine-binding periplasmic protein SpuD
SEED: Putrescine ABC transporter putrescine-binding protein PotF (TC 3.A.1.11.2)
KEGG: putrescine transport system substrate-binding protein
Top 100 hits from BLASTp (E < 0.01)
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