Table 1. Relative CMM2 expression levels.

Levels are indicated by ‘+’ signs: a single ‘+’ denotes a low level of expression and ‘+++’ indicates a high level. A ‘–’ sign indicates no expression or insoluble protein.

Construct boundaries	Expression level	Purification	Crystals obtained	Maximum resolution (Å)
1675–2001	−
1675–1823	++	Yes
1692–1805	++	Yes
1692–1817	++
1692–1823	++	Yes
1692–2001
1699–1805	+	Yes
1699–1813	+++	Yes
1699–1814	+++	Yes	Yes	3.6–3.8
1699–1817	+++
1699–1823	++
1700–1813	+++
1700–1814	+++	Yes	Yes	3.2–3.5
1715–1805	+