Table 2 Expected and observed masses (M/Z) of PorK peptide (GCFLGNFKPGEGDYTADGHLIPSR) + PorG peptides

From: Insights into type IX secretion from PorKN cogwheel structure bound to PorG and attachment complexes

PorK peptide crosslinked with:

Calculated m/z

Observed m/z non-reduced

Observed m/z reduced

PorG: TFCNK

790.8714 (4+)

790.8713 (4+)

Not observed

PorG: TFCNKQ

822.8860 (4+)

822.8873 (4+)

Not observed

PorG: KTFCNK

822.8951 (4+)

822.8946 (4+)

Not observed

PorG: KTFCNKQ

854.9098 (4+)

854.9090 (4+)

Not observed