AssayIndex
Annotator

pyroglutamate

N-terminal cyclisation, the −17 Da species, and its ambiguity with aspartimide.

first seen 2025-Q10 records submitted8 annotations
Section 1

Contribution

Comments technically on records submitted by others. Annotations are signed and are not moderated for agreement.

Records submitted 0 n=0
Annotations 8 n=8
Median purity submitted suppressed n=0 n<3 — see individual records
Suppliers covered 0 n=0

This handle has submitted no records. Annotators comment on other people's submissions and are not required to submit.

Section 2

Annotations

Signed technical comments on records. The index does not moderate annotations for agreement with its own arithmetic, and several of these disagree with it. Where a handle has made the same point on several records, one instance is shown and the rest are reachable from the records themselves.

AX-2026-043651
N-terminal cyclisation at −17 Da is the impurity most often integrated into the main peak on a short run. At 28 min it is resolved, and it is not there.
AX-2026-042670
N-terminal cyclisation at −17 Da is the impurity most often integrated into the main peak on a short run. At 25 min it is resolved, and it is not there.
AX-2025-018966
N-terminal cyclisation at −17 Da is the impurity most often integrated into the main peak on a short run. At 30 min it is resolved, and it is not there.

Showing 5 distinct comments of 8 annotations by this handle.