| Analysis | rpsblast_cdd | Start | 542 |
| End | 690 | Strand | + |
| Length | 149 | Note | Gaps:5 |
| Hit Coverage | 72.04 | Hit Length | 211 |
| Hit Pident | 55.92 | E Val | 4e-48 |
| Hit Description | cd09199 PLDc_pPLDalpha_2 Catalytic domain repeat 2 of plant alpha-type phospholipase D. Catalytic domain repeat 2 of plant alpha-type phospholipase D (PLDalpha EC 3.1.4.4). Plant PLDalpha is a phosphatidylinositol 4 5-bisphosphate (PIP2)-independent PLD that possesses a regulatory calcium-dependent phospholipid-binding C2 domain in the N-terminus and require millimolar calcium for optimal activity. The C2 domain is unique to plant PLDs and is not present in animal or fungal PLDs. Like other PLD enzymes the monomer of plant PLDalpha consists of two catalytic domains each of which contains one copy of the conserved HKD motif (H-x-K-x(4)-D where x represents any amino acid residue). Two HKD motifs from two domains form a single active site. Plant PLDalpha may utilize a common two-step ping-pong catalytic mechanism involving an enzyme-substrate intermediate to cleave phosphodiester bonds. The two histidine residues from the two HKD motifs play key roles in the catalysis. Upon substrate binding a histidine residue from one HKD motif could function as the nucleophile attacking the phosphodiester bond to create a covalent phosphohistidine intermediate while the other histidine residue from the second HKD motif could serve as a general acid stabilizing the leaving group. | Hit Pcons | 13.82 |
| Name | Qrob_P0204290.2 |
| Protein Identifier |
Organism . Name |
Score | Score Type | Protein Description | Alias (in v1) | Code Enzyme | Gene Prediction Quality |
|---|---|---|---|---|---|---|---|
| Qrob_P0204290.2 | Quercus robur | 99.0 | egn | (M=2) PF00168//PF00614 - C2 domain // Phospholipase D Active site motif | EC:3.1.4.4 | validated |
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