Table 2. Sample volume (V _c), unit-cell volume (V _u), asymmetric unit volume (V _a), molecular weight (MW) and year of publication of available neutron structures.

	Space group	Vu (Å3)	Va (Å3)	Vc (mm3)	MW (Da)	Reference
1. DFPase	P212121	310503	77626	0.43	35000	This study
2. Trypsin	P212121	216761	54190	1.62	23300	Kossiakoff & Spencer (1981 ▶)
3. DsrD	P212121	183143	45786	1.70	8840	Chatake et al. (2003 ▶)
4. Rubredoxin	P212121	53600	13400	5.00	5900	Kurihara et al. (2004 ▶)
5. BPTI	P212121	50111	12528	8.00	6530	Wlodawer et al. (1984 ▶)
6. D-Xylose isomerase†	I222	962934	120367	3.00	160000	Katz et al. (2006 ▶)
7. Rasburicase†	I222	814080	101760	1.80	135000	Budayova-Spano et al. (2006 ▶)
8. Concanavalin A	I222	493697	61712	15.00	25600	Blakeley et al. (2004 ▶)
9. Lysozyme	P43212	242213	30277	6.00	14300	Niimura et al. (1997 ▶)
10. Ribonuclease A	P21	59444	29722	30.00	13700	Wlodawer & Sjölin (1981 ▶); Wlodawer (1980 ▶)
11. Myoglobin‡	P21	66735	33368	2.50	17200	Shu et al. (2000 ▶)
12. Amicyanin	P21	43127	21564	2.60	11500	Sukumar et al. (2005 ▶)
13. Endothiapepsin	P21	138925	69463	3.52	35000	Coates et al. (2001 ▶)
14. Aldose reductase‡	P21	161663	80832	0.15	36000	Hazemann et al. (2005 ▶)
15. Insulin	H3	200409	22268	3.00	5790	Wlodawer et al. (1989 ▶)
16. DHFR§	P61	516990	86165	0.30	36100	Bennett et al. (2006 ▶)

^†Tetramer.

^‡Perdeuterated.

^§Dimer.