TABLE 2.
Length polymorphisms in the gp15/45/60 polyserine tract
| Isolate | Origin | Genotype at gp15 locus | No. of serines in polyserine tract | Predicted N-glycosylation site |
|---|---|---|---|---|
| Ninc1 | Calf | Animal-II | 23 | ANSSS |
| Brazil | Humana | Animal-II | 19 | ANSSS |
| Zaire | Humana | Animal-II | 17 | ANSSS |
| Iowa gDNA | Calfa | Animal-II | 17 | ANSSS |
| Iowa cDNA | Calfa | Animal-II | 17 | ANSSS |
| Peru | Humana | Animal-II | 17 | ANSSS |
| UCP | Calfa | Animal-II | 17 | ANSSS |
| Tamu | Foala | Animal-II | 17 | ANSSS |
| KSU1 | Calfa | Animal-II | 17 | ANSSS |
| GCH1 | Humana | Animal-II | 19 | ANSSS |
| NT009 | Humana | Animal-II | 17 | ANSSS |
| HS1 | Calf | Animal-II | 19 | NDd |
| HS2 | Calf | Animal-II | 19 | ND |
| 6HMA1-10 | Human | Animal-II | 17 | ND |
| SFGH1 | Human | Human-Ia | 13 | ANSSS |
| SFGH6 | Human | Human-Ia | 13 | ANSSS |
| 2066K | Human | Human-Ia | 15 | ANSSS |
| SFGH4 | Human | Human-Ia | 23 | ANSSS |
| SFGH3 | Human | Human-Ia | 23 | ANSSS |
| 0542J | Human | Human-Ib | 12 | No site predicted |
| 0541L | Human | Human-Ib | 12 | No site predicted |
| 2064D | Human | Human-Ib | 12 | No site predicted |
| 9877 | Humanb | Human-Ib | 12 | No site predicted |
| NEMC1 | Humanb | Human-Ib | 12 | No site predicted |
| CCPO2 | Human | Human-Ib | 12 | No site predicted |
| 0676I | Human | Human-Ic | 8 | NNGST |
| SFGH23 | Human | Human-Ic | 8 | NNGST |
| CCPO1 | Human | Human-Id | 17 | No site predicted |
| HGM07 | Human | Human-Id | 24 | ND |
| HGM10c | Human | Human-Id | 17 | ND |
a
Oocysts have been passaged in calves.
b
Oocysts have been passaged in piglets.
c
Only sequence where TCT codon is found in polyserine tract; sequences from all other isolates use TCA and TCG.
d
ND, not determined.