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Basic Information | |
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Species | Cucumis sativus |
Cazyme ID | Cucsa.339310.1 |
Family | GH38 |
Protein Properties | Length: 1161 Molecular Weight: 133077 Isoelectric Point: 7.0812 |
Chromosome | Chromosome/Scaffold: 03356 Start: 1950436 End: 1957653 |
Description | golgi alpha-mannosidase II |
View CDS |
External Links |
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NCBI Taxonomy |
CAZyDB |
Signature Domain Download full data set without filtering | |||
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Family | Start | End | Evalue |
GH38 | 150 | 489 | 0 |
KVFVVPHSHNDPGWKLTVDEYYDRQSRHILDTIVEALSRDSRRKFIWEEMSYLEKWWRDASDEKKESFAALVKNGQLEIVGGGWVMNDEANSHYFAIIEQ MAEGNMWLNETIGVVPKNSWAIDPFGYSPTMAYLLRRMGFENMLIQRTHYELKKELALHKNLEFIWRQSWDAEETTDIFVHMMPFYSYDIPHTCGPEPAI CCQFDFARSRGSLYELCPWRQDPVEINKENVQERATTLLDQYRKKSVLYRTNTLLIPLGDDFRYINIDEAEAQFKNYQLLFDYINSNPSLNAEANFGTLE DYFRTLRDEAEKINYSLPGEVGSSLVGGFPSLSGDFFTYA |
Full Sequence |
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Protein Sequence Length: 1161 Download |
MAFSSFTGGS GARRGGWAGS ILPFSSVSPS AKPKHNRKYR RRLAIRDFIF SNFFTIGLLI 60 SFFFFLIVLL RYGVPKPISS PFKSHAIRSH RPRKPIVSEN WNSEVLSSNV DITTKELYDR 120 IEFLDIDGGP WKQGWKVTYK GNEWDSEKLK VFVVPHSHND PGWKLTVDEY YDRQSRHILD 180 TIVEALSRDS RRKFIWEEMS YLEKWWRDAS DEKKESFAAL VKNGQLEIVG GGWVMNDEAN 240 SHYFAIIEQM AEGNMWLNET IGVVPKNSWA IDPFGYSPTM AYLLRRMGFE NMLIQRTHYE 300 LKKELALHKN LEFIWRQSWD AEETTDIFVH MMPFYSYDIP HTCGPEPAIC CQFDFARSRG 360 SLYELCPWRQ DPVEINKENV QERATTLLDQ YRKKSVLYRT NTLLIPLGDD FRYINIDEAE 420 AQFKNYQLLF DYINSNPSLN AEANFGTLED YFRTLRDEAE KINYSLPGEV GSSLVGGFPS 480 LSGDFFTYAD RQEDYWSGYY VSRPFFKAVD RVLERTLRAA EMMLALLLGP CQRSQCEKLP 540 LGFSYKLTAA RRNLALFQHH DGVTGTAKDH VVRDYGVRMH TSLQDLHIFM SKAIEVLLGI 600 RHDKSDQNPS QFEPEQMRSK YDAQPVHKSI DLQEGTYQSV IFFNPLEQTR EEVAMVIVNR 660 TEVTVLDSNW TCVQSQISPE FQHDKAKVFT GRHRIHWKIS VPALGLQTYY IANGLFDCEK 720 PKPAKLKIFS TSTSLPCPTP YACSKVNGDV AEIENQHQSL VFDVKHGLLQ KVINKDGSQN 780 FVNEEIAMYS SWGSGAYLFK PTGEAKSITE EGGLTVVTEG PLMQEVFSYP KTGWEPSPIS 840 HSTRLYSGGN SIQEHLIEME YHVELLGREY DDRELIVRYK TDIDNKRIFY SDLNGLQMSR 900 RESYDKIPLQ GNYYPMPSLA FMEGSNGQRF SVHSRQSLGV ASLKDGWLEI MLDRRLYRDD 960 GRGLGQGVTD NRAMNVVFHI LLESNVSTKL NPVSSYSPLS PSLLSHCIGA RLNYPLHAFI 1020 AKKPQPSSLQ PTSRSFSPLA APLPCDLHIV SFKVPRPLKY TQQSLEDPRF LLIFHRRHWD 1080 SSYCKTARSN CARVADEPFN LFNMFKGLAV SDARASSLNL LHEDTEMLGY NEQSGDVGHE 1140 GQLHIPPMEV RAYKLELKPR * 1200 |
Functional Domains Download unfiltered results here | ||||||||
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Cdd ID | Domain | E-Value | Start | End | Length | Domain Description | ||
cd00451 | GH38N_AMII_euk | 2.0e-110 | 149 | 435 | 288 | + N-terminal catalytic domain of eukaryotic class II alpha-mannosidases; glycoside hydrolase family 38 (GH38). The family corresponds to a group of eukaryotic class II alpha-mannosidases (AlphaMII), which contain Golgi alpha-mannosidases II (GMII), the major broad specificity lysosomal alpha-mannosidases (LAM, MAN2B1), the noval core-specific lysosomal alpha 1,6-mannosidases (Epman, MAN2B2), and similar proteins. GMII catalyzes the hydrolysis of the terminal both alpha-1,3-linked and alpha-1,6-linked mannoses from the high-mannose oligosaccharide GlcNAc(Man)5(GlcNAc)2 to yield GlcNAc(Man)3(GlcNAc)2 (GlcNAc, N-acetylglucosmine), which is the committed step of complex N-glycan synthesis. LAM is a broad specificity exoglycosidase hydrolyzing all known alpha 1,2-, alpha 1,3-, and alpha 1,6-mannosidic linkages from numerous high mannose type oligosaccharides. Different from LAM, Epman can efficiently cleave only the alpha 1,6-linked mannose residue from (Man)3GlcNAc, but not (Man)3(GlcNAc)2 or other larger high mannose oligosaccharides, in the core of N-linked glycans. Members in this family are retaining glycosyl hydrolases of family GH38 that employs a two-step mechanism involving the formation of a covalent glycosyl enzyme complex. Two carboxylic acids positioned within the active site act in concert: one as a catalytic nucleophile and the other as a general acid/base catalyst. | ||
cd11667 | GH38N_Man2A2 | 1.0e-152 | 149 | 500 | 352 | + N-terminal catalytic domain of Golgi alpha-mannosidase IIx, and similar proteins; glycoside hydrolase family 38 (GH38). This subfamily is represented by human alpha-mannosidase 2x (MX, also known as mannosyl-oligosaccharide 1,3- 1,6-alpha mannosidase, EC 3.2.1.114, Man2A2). MX is enzymatically and functionally very similar to GMII (found in another subfamily), and as an isoenzyme of GMII. It is thought to also function in the N-glycosylation pathway. MX specifically hydrolyzes the same oligosaccharide substrate as does MII. It specifically removes two mannosyl residues from GlcNAc(Man)5(GlcNAc)2 to yield GlcNAc(Man)3(GlcNAc)2(GlcNAc, N-acetylglucosmine). | ||
cd11666 | GH38N_Man2A1 | 8.0e-162 | 149 | 500 | 352 | + N-terminal catalytic domain of Golgi alpha-mannosidase II and similar proteins; glycoside hydrolase family 38 (GH38). This subfamily is represented by Golgi alpha-mannosidase II (GMII, also known as mannosyl-oligosaccharide 1,3- 1,6-alpha mannosidase, EC 3.2.1.114, Man2A1), a monomeric, membrane-anchored class II alpha-mannosidase existing in the Golgi apparatus of eukaryotes. GMII plays a key role in the N-glycosylation pathway. It catalyzes the hydrolysis of the terminal of both alpha-1,3-linked and alpha-1,6-linked mannoses from the high-mannose oligosaccharide GlcNAc(Man)5(GlcNAc)2 to yield GlcNAc(Man)3(GlcNAc)2(GlcNAc, N-acetylglucosmine), which is the committed step of complex N-glycan synthesis. GMII is activated by zinc or cobalt ions and is strongly inhibited by swainsonine. Inhibition of GMII provides a route to block cancer-induced changes in cell surface oligosaccharide structures. GMII has a pH optimum of 5.5-6.0, which is intermediate between those of acidic (lysosomal alpha-mannosidase) and neutral (ER/cytosolic alpha-mannosidase) enzymes. GMII is a retaining glycosyl hydrolase of family GH38 that employs a two-step mechanism involving the formation of a covalent glycosyl enzyme complex; two carboxylic acids positioned within the active site act in concert: one as a catalytic nucleophile and the other as a general acid/base catalyst. | ||
PLN02701 | PLN02701 | 0 | 110 | 1158 | 1051 | + alpha-mannosidase | ||
cd10809 | GH38N_AMII_GMII_SfManIII_like | 0 | 148 | 500 | 353 | + N-terminal catalytic domain of Golgi alpha-mannosidase II, Spodoptera frugiperda Sf9 alpha-mannosidase III, and similar proteins; glycoside hydrolase family 38 (GH38). This subfamily is represented by Golgi alpha-mannosidase II (GMII, also known as mannosyl-oligosaccharide 1,3- 1,6-alpha mannosidase, EC 3.2.1.114, Man2A1), a monomeric, membrane-anchored class II alpha-mannosidase existing in the Golgi apparatus of eukaryotes. GMII plays a key role in the N-glycosylation pathway. It catalyzes the hydrolysis of the terminal both alpha-1,3-linked and alpha-1,6-linked mannoses from the high-mannose oligosaccharide GlcNAc(Man)5(GlcNAc)2 to yield GlcNAc(Man)3(GlcNAc)2(GlcNAc, N-acetylglucosmine), which is the committed step of complex N-glycan synthesis. GMII is activated by zinc or cobalt ions and is strongly inhibited by swainsonine. Inhibition of GMII provides a route to block cancer-induced changes in cell surface oligosaccharide structures. GMII has a pH optimum of 5.5-6.0, which is intermediate between those of acidic (lysosomal alpha-mannosidase) and neutral (ER/cytosolic alpha-mannosidase) enzymes. GMII is a retaining glycosyl hydrolase of family GH38 that employs a two-step mechanism involving the formation of a covalent glycosyl enzyme complex; two carboxylic acids positioned within the active site act in concert: one as a catalytic nucleophile and the other as a general acid/base catalyst. This subfamily also includes human alpha-mannosidase 2x (MX, also known as mannosyl-oligosaccharide 1,3- 1,6-alpha mannosidase, EC 3.2.1.114, Man2A2). MX is enzymatically and functionally very similar to GMII, and is thought to also function in the N-glycosylation pathway. Also found in this subfamily is class II alpha-mannosidase encoded by Spodoptera frugiperda Sf9 cell. This alpha-mannosidase is an integral membrane glycoprotein localized in the Golgi apparatus. It shows high sequence homology with mammalian Golgi alpha-mannosidase II(GMII). It can hydrolyze p-nitrophenyl alpha-D-mannopyranoside (pNP-alpha-Man), and it is inhibited by swainsonine. However, the Sf9 enzyme is stimulated by cobalt and can hydrolyze (Man)5(GlcNAc)2 to (Man)3(GlcNAc)2, but it cannot hydrolyze GlcNAc(Man)5(GlcNAc)2, which is distinct from that of GMII. Thus, this enzyme has been designated as Sf9 alpha-mannosidase III (SfManIII). It probably functions in an alternate N-glycan processing pathway in Sf9 cells. |
Gene Ontology | |
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GO Term | Description |
GO:0004553 | hydrolase activity, hydrolyzing O-glycosyl compounds |
GO:0004559 | alpha-mannosidase activity |
GO:0005975 | carbohydrate metabolic process |
GO:0006013 | mannose metabolic process |
GO:0008270 | zinc ion binding |
Annotations - NR Download unfiltered results here | |||||||
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Source | Hit ID | E-Value | Query Start | Query End | Hit Start | Hit End | Description |
EMBL | CBI35021.1 | 0 | 1 | 1159 | 1 | 1056 | unnamed protein product [Vitis vinifera] |
RefSeq | NP_196999.1 | 0 | 1 | 1159 | 1 | 1171 | GMII (GOLGI ALPHA-MANNOSIDASE II); alpha-mannosidase [Arabidopsis thaliana] |
RefSeq | XP_002276468.1 | 0 | 1 | 1159 | 1 | 1149 | PREDICTED: hypothetical protein [Vitis vinifera] |
RefSeq | XP_002438145.1 | 0 | 110 | 1159 | 128 | 1178 | hypothetical protein SORBIDRAFT_10g008770 [Sorghum bicolor] |
RefSeq | XP_002517418.1 | 0 | 1 | 1159 | 1 | 1178 | mannosidase alpha class 2a, putative [Ricinus communis] |
Annotations - PDB Download unfiltered results here | |||||||
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Source | Hit ID | E-Value | Query Start | Query End | Hit Start | Hit End | Description |
PDB | 1ps3_A | 0 | 77 | 1020 | 15 | 933 | A Chain A, Golgi Alpha-mannosidase Ii In Complex With Kifunensine |
PDB | 3eju_A | 0 | 77 | 1020 | 15 | 933 | A Chain A, Golgi Alpha-mannosidase Ii In Complex With Kifunensine |
PDB | 3ejt_A | 0 | 77 | 1020 | 15 | 933 | A Chain A, Golgi Alpha-mannosidase Ii In Complex With Kifunensine |
PDB | 3ejs_A | 0 | 77 | 1020 | 15 | 933 | A Chain A, Golgi Alpha-mannosidase Ii In Complex With Kifunensine |
PDB | 3ejr_A | 0 | 77 | 1020 | 15 | 933 | A Chain A, Golgi Alpha-mannosidase Ii In Complex With Kifunensine |