Table 2.

List of structurally characterized pentameric Pfam03319 domain-containing proteins from the carboxysome and their dimensions

Pfam03319 protein	Carboxysome type	Pentamer diametera (Å)	Pentamer edge lengthb (Å)	Pore residues	Pore diameter (Å)
CcmL [2QW7]	β	58	36	RGSAA	5
CsoS4A [2RCF]	α	57	34	GSSAA	3.5

PDB IDs of the listed structures are in brackets. ^a Pentamer diameter was measured from one vertex to its opposite edged. ^b Pentamer edge length was measured from one vertex to its shared edge vertex. Dimensions of the pentamers were measured using PyMOL (DeLano 2002), and all pore diameters for this study were measured using HOLE (Smart et al. 1996)