Files in this Data Supplement:

• Supplemental file 1 - Table S1. Oligonucleotide primers used for gene inactivation and allele replacement.
  Table S2. Primers used for qRT-PCR.
  Table S3. Effect of additional growth phases on pilus gene transcript abundance in the nra mutant.
  Fig. S1. Deletion of nra results in loss of pilus-like structures.
  Fig. S2. Deletion of nra results in loss of pilus-like structures for Alab49 grown to 37„aC.
  Fig. S3. Secreted cysteine proteinase activity is unaffected by nra deletion.
  Fig. S4. Deletion of msmR leads to slight increase in pilus-like structures for Alab49.
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