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. 2014 Feb 19;9(2):e89120. doi: 10.1371/journal.pone.0089120

Table 2. Genes associated with virulence.

Gene Gene product/explanation All isolates MSSA only MRSA only
agrI Accessory gene regulator allele I 206 (70.07%) 162 (65.06%) 44 (97.78%)
agrII Accessory gene regulator allele II 36 (12.24%) 35 (14.06%) 1 (2.22%)
agrIII Accessory gene regulator allele III 33 (11.22%) 33 (13.25%) 0
agrIV Accessory gene regulator allele IV 12 (4.08%) 12 (4.82%) 0
agr - Unidentified agr allele or negatives 7 (2.38%) 7 (2.81%) 0
tst1 Toxic shock syndrome toxin 1 5 (1.70%) 5 (2.01%) 0
sea Enterotoxin A 36 (12.24%) 15 (6.02%) 21 (46.67%)
sea (N315)/sep Enterotoxin A ( = P), allele from N315 14 (4.76%) 14 (5.62%) 0
seb Enterotoxin B 24 (8.16%) 24 (9.64%) 0
sec/l Enterotoxin C and L 20 (6.80%) 20 (8.03%) 0
sed Enterotoxin D 63 (21.43%) 63 (25.30%) 0 (0%)
see Enterotoxin E 0 0 0
seh Enterotoxin H 5 (1.70%) 5 (2.01%) 0
sej Enterotoxin J 64 (21.77%) 64 (25.70%) 0
sek/q Enterotoxin K and Q 110 (37.41%) 67 (26.91%) 43 (95.56%)
ser Enterotoxin R 63 (21.43%) 63 (25.30%) 0
egc egc cluster (seg, sei, selm, seln, selo, selu) 90 (30.61%) 89 (35.74%) 1 (2.22%)
ORF CM14 Enterotoxin homologue 15 (5.10%) 15 (6.02%) 0
lukF/S -PV Panton-Valentine leukocidin 147 (50%) 130 (52.21%) 17 (37.78%)
sak Staphylokinase 255 (86.73%) 218 (87.55%) 37 (82.22%)
chp Chemotaxis inhibiting protein (CHIPS) 158 (53.74%) 142 (57.03%) 16 (35.56%)
scn Staphyl. complement inhibitor 266 (90.48%) 229 (91.97%) 37 (82.22%)
etA Exfoliative toxin serotype A 11 (3.74%) 11 (4.42%) 0
etB Exfoliative toxin serotype B 5 (1.70%) 5 (2.01%) 0
etD Exfoliative toxin D 0 0 0
edinA Epidermal cell differentiation inhibitor 13 (4.42%) 13 (5.22%) 0
edinB Epidermal cell differentiation inhibitor B 27 (9.18%) 27 (10.84%) 0
edinC Epidermal cell differentiation inhibitor C 4 (1.36%) 4 (1.61%) 0
ACME ACME locus 18 (6.12%) 0 18 (40%)
cna Collagen adhesin 136 (46.26%) 109 (43.78%) 27 (60%)
sasG Staphylococcal protein G 198 (67.35%) 153 (61.45%) 45 (100%)
cap5 Capsule type 8 alleles 166 (56.46%) 148 (59.44%) 18 (40%)
cap8 Capsule type 5 alleles 122 (41.50%) 95 (38.15%) 27 (60%)
cap - Unidentified capsule type or negatives 6 (2.04%) 6 (2.41%) 0