spuB (PA0298, PauA2, Q9I6J3) notes

PubMed search returned API errors on 2026-11-05. Lu et al. 2002 full text is
cached; Yao et al. 2011 (PMC3147493) was read through a fetch summary of the
PMC page.

Literature

spuB mutants are defective in spermidine utilization PMID:12081945.
PMC full text (fetch summary): pauA2 = PA0298; a single pauA2 knockout
completely blocks growth on Spd; growth on diamines normal; pauA2 also in the
pauA1A2A4 putrescine-null combination.
No purified-enzyme assay.

PseudoCAP IBA-seed assessment

PTN node	node term	n_seeds	leaf IBAs	seed annotation (term, evidence, PMID)	verdict	rationale	other seeds	IBD stands without this seed?
PTN001839150	GO:0006598 polyamine catabolic process	4	10 (4 taxa)	GO:0046203, IMP, PMID:21622750 (PseudoCAP)	SOUND	Single pauA2 knockout abolishes growth on spermidine; independently seen in PMID:12081945.	PuuA P78061 (IMP, IDA); PA1566 Q9I3F1 (SOUND); SpuI Q9I6J5 (WRONG reference)	Yes

No PSEUDOCAP or GO_CENTRAL defect. Node shared with PA1566 and spuI; spuI's
mis-referenced rows carry the defects (see spuI notes).