Mapping the distribution of packing topologies within protein interiors shows predominant preference for specific packing motifs

Table 5 Distribution in θ1_t for triplet clique compositions exhibiting high χ²

				% Occupancy in bins with θ (deg.) range
Composition			χ ² (θ1 _t )	0-30	30-60	60-90	90-120	120-150	150-180
Random (6bin):				6.7	18.3	25.0	25.0	18.3	6.7
Random (3bin):				13.4	36.6	50.0	-	-	-
PHE	ILE	LEU	48.5	4.0	26.1	69.9	-	-	-
PHE	LEU	VAL	60.0	4.5	21.1	74.4	-	-	-
PHE	LEU	LEU	72.1	2.1	21.1	76.8	-	-	-
TYR	ILE	LEU	39.0	2.0	23.8	74.2	-	-	-
PHE	ILE	VAL	37.7	4.0	21.3	74.7	-	-	-
TYR	PHE	LEU	44.6	1.7	17.9	80.4	-	-	-
TYR	LEU	LEU	46.7	0.0	17.3	82.7	-	-	-
TYR	LEU	VAL	35.5	2.0	18.3	79.7	-	-	-
PHE	VAL	VAL	21.6	0.0	28.4	71.6	-	-	-
TYR	PHE	VAL	20.3	3.9	20.8	75.3	-	-	-
TYR	ILE	VAL	23.4	1.4	20.3	78.3	-	-	-
TRP	LEU	LEU	29.5	0.0	2.1	44.7	44.7	6.4	2.1
TRP	LEU	VAL	23.9	2.4	7.4	43.9	43.9	2.4	0.0

Angular distribution of θ1_t in different angular bins (3-bin models for Phe and Tyr and 6-bin model for Trp: 30° bins) for compositions that have shown significant deviations from a random distribution:

ISSN: 1471-2105