Table 1 Conserved residues among carbamoyltransferases
Enzyme family | Common TCase motifs | ATCase motif | ||
|---|---|---|---|---|
(Positions in Escherichia coli ATCase) | ||||
1 | 2 | 3 | 4 | |
S53-T56 | H135-Q138 | H265-P268 | R230-Q232 | |
OTCase | S[LT]RT | HPXQ | HCLP | -- |
AOTCase, SOTCase | S[LM]RT | HP[LC]Q | HCLP | -- |
YTCase | S[LT]RT | HP[TMF]Q | H[AVC]LP | -- |
abTCase | STRT | HPTQ | HDLP | -- |
ATCase (I & II) | S[TR]RT | HP[ST]Q | HP[LG]P | RXQ |
pseudo-ATCase 1 | STRT | HPTQ | HPLA | AIA or AIS or SIA |
pseudo-ATCase 2 | STRT | HPTQ | H[ST]LP | GX[SC] |
pseudo-ATCase 3 | STRT | HPTQ | HSLP | VXP |