Score = 42.4 bits (98), Expect = 8e-04, Method: Compositional matrix adjust.
Identities = 24/57 (42%), Positives = 31/57 (54%), Gaps = 3/57 (5%)
Query: 3 EDSTIGKLILAFTCICFLYYTLWVFATPFIEPDTAILDIRYYFPPIQYALIIPCALI 59
D IG +++ F F YYT WV TPFI D I+ YF P +Y +IIP L+
Sbjct: 4 SDKFIGFVMVLFRIFVFGYYTTWVIITPFIVSDHW---IQQYFLPREYGIIIPLVLL 57
Regulates the biosynthesis of dolichol phosphate-mannose. Essential for the ER localization and stable expression of dpm1. Dictyostelium discoideum (taxid: 44689)
Close Homologs in the Non-Redundant Database Detected by BLAST
Score = 47.0 bits (112), Expect = 2e-08
Identities = 25/63 (39%), Positives = 37/63 (58%), Gaps = 5/63 (7%)
Query: 4 DSTIGKLILAFTCICFLYYTLWVFATPFIEPDTAILDIRYYFPPIQYALIIPCALISGLI 63
D +G +LA + I F YYT+WV PF++ D I +F P +YA+ IP +I+GL+
Sbjct: 5 DRLVGLGLLAVSLIIFTYYTIWVILLPFVDSDHVIHS---FFLPREYAIRIP--VIAGLL 59
Query: 64 GCL 66
L
Sbjct: 60 LLL 62
This family consists of several eukaryotic dolichol phosphate-mannose biosynthesis regulatory (DPM2) proteins. Biosynthesis of glycosylphosphatidylinositol and N-glycan precursor is dependent upon a mannosyl donor, dolichol phosphate-mannose (DPM). DPM2, an 84 amino acid membrane protein expressed in the endoplasmic reticulum (ER), makes a complex with DPM1 that is essential for the ER localisation and stable expression of DPM1. Moreover, DPM2 enhances binding of dolichol phosphate, a substrate of DPM synthase. Biosynthesis of DPM in mammalian cells is regulated by DPM2. Length = 80
>PF07297 DPM2: Dolichol phosphate-mannose biosynthesis regulatory protein (DPM2); InterPro: IPR009914 This family consists of several eukaryotic dolichol phosphate-mannose biosynthesis regulatory (DPM2) proteins
Probab=100.00 E-value=1e-35 Score=202.04 Aligned_cols=78 Identities=33% Similarity=0.603 Sum_probs=75.8
Q ss_pred chhhHHHHHHHHHHHHHHHHHHHHHhhcccccCCccccccccccCChhhHHHHHHHHHHHHHHHHHHHHhhhhhhcCCcc
Q psy17048 2 LEDSTIGKLILAFTCICFLYYTLWVFATPFIEPDTAILDIRYYFPPIQYALIIPCALISGLIGCLYAFTCTFYITAYTKI 81 (103)
Q Consensus 2 ~~Dr~vG~~lL~~~~~iF~YYtvWv~vlPFvd~D~~i~~~~~lFpPr~yAi~lP~~lllv~l~~vg~Fig~~lI~~~~k~ 81 (103)
++||++|++|+++++++|+|||+|++++||+|+||++| ++||||||||++|+++++++++++|+|+|++|++|+||+
T Consensus 1 ~~Dr~vG~~~l~~a~~vF~YYt~WvlllPFvd~d~~i~---~~F~Pr~yAi~lP~~lll~~~~~vg~f~g~vmik~~~kk 77 (78)
T PF07297_consen 1 MSDRLVGLLMLAVALSVFTYYTIWVLLLPFVDEDHPIH---SFFPPREYAIILPIFLLLLGLSGVGTFLGYVMIKSKKKK 77 (78)
T ss_pred ChHHHHHHHHHHHHHHHHHHHHHHHHHhcccCCCchHH---HcCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHhhccccc
Confidence 48999999999999999999999999999999999999 999999999999999999999999999999999999986
Q ss_pred c
Q psy17048 82 W 82 (103)
Q Consensus 82 ~ 82 (103)
+
T Consensus 78 ~ 78 (78)
T PF07297_consen 78 A 78 (78)
T ss_pred C
Confidence 4
Biosynthesis of glycosylphosphatidylinositol and N-glycan precursor is dependent upon a mannosyl donor, dolichol phosphate-mannose (DPM). DPM2, an 84 amino acid membrane protein expressed in the endoplasmic reticulum (ER), makes a complex with DPM1 that is essential for the ER localisation and stable expression of DPM1. Moreover, DPM2 enhances binding of dolichol phosphate, a substrate of DPM synthase. Biosynthesis of DPM in mammalian cells is regulated by DPM2 [].; GO: 0009059 macromolecule biosynthetic process, 0030176 integral to endoplasmic reticulum membrane
>PF10510 PIG-S: Phosphatidylinositol-glycan biosynthesis class S protein; InterPro: IPR019540 Phosphatidylinositol-glycan biosynthesis class S protein (PIG-S) is one of several key, core components of the glycosylphosphatidylinositol (GPI) trans-amidase complex that mediates GPI anchoring in the endoplasmic reticulum
Anchoring occurs when a protein's C-terminal GPI attachment signal peptide is replaced with a pre-assembled GPI []. Mammalian GPI transamidase consists of at least five components: Gaa1, Gpi8, PIG-S, PIG-T, and PIG-U, all five of which are required for its function. It is possible that Gaa1, Gpi8, PIG-S, and PIG-T form a tightly associated core that is only weakly associated with PIG-U. The exact function of PIG-S is unclear [].
