Structure of PDB 3bup Chain A

Receptor sequence
>3bupA (length=1015) Species: 7227 (Drosophila melanogaster) [Search protein sequence]
CQDVVQDVPNVDVQMLELYDRMSFKDIDGGVWKQGWNIKYDPLKYNAHHK
LKVFVVPHSHNDPGWIQTFEEYYQHDTKHILSNALRHLHDNPEMKFIWAE
ISYFARFYHDLGENKKLQMKSIVKNGQLEFVTGGWVMPDEANSHWRNVLL
QLTEGQTWLKQFMNVTPTASWAIDPFGHSPTMPYILQKSGFKNMLIQRTH
YSVKKELAQQRQLEFLWRQIWDNKGDTALFTHMMPFYSYDIPHTCGPDPK
VCCQFDFKRMGSFGLSCPWKVPPRTISDQNVAARSDLLVDQWKKKAELYR
TNVLLIPLGDNFRFKQNTEWDVQRVNYERLFEHINSQAHFNVQAQFGTLQ
EYFDAVHQAERAGQAEFPTLSGDFFTYADRSDNYWSGYYTSRPYHKRMDR
VLMHYVRAAEMLSAWHSWDGMARIEERLEQARRELSLFQHHDGITGTAKT
HVVVDYEQRMQEALKACQMVMQQSVYRLLTKPSIYSPDFSFSYFTLDDSR
WPGSGVEDSRTTIILGEDILPSKHVVMHNTLPHWREQLVDFYVSSPFVSV
TDLANNPVEAQVSPVWSWHHDTLTKTIHPQGSTTKYRIIFKARVPPMGLA
TYVLTISDSKPEHTSYASNLLLRKNPTSLPLGQYPEDVKFGDPREISLRV
GNGPTLAFSEQGLLKSIQLTQDSPHVPVHFKFLKYGVRSHGDRSGAYLFL
PNGPASPVELGQPVVLVTKGKLESSVSVGLPSVVHQTIMRGGAPEIRNLV
DIGSLDNTEIVMRLETHIDSGDIFYTDLNGLQFIKRRRLDKLPLQANYYP
IPSGMFIEDANTRLTLLTGQPLGGSSLASGELEIMQDRRLASDDERGLGQ
GVLDNKPVLHIYRLVLEKVNNCVRPSKLHPAGYLTSAAHKASQSLLDPLD
KFIFAENEWIGAQGQFGGDHPSAREDLDVSVMRRLTKSSAKTQRVGYVLH
RTNLMQCGTPEEHTQKLDVCHLLPNVARCERTTLTFLQNLEHLDGMVAPE
VCPMETAAYVSSHSS
3D structure
PDB3bup Probing the substrate specificity of Golgi alpha-mannosidase II by use of synthetic oligosaccharides and a catalytic nucleophile mutant.
ChainA
Resolution2.03 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) H90 D92 D204 N341 H471
Catalytic site (residue number reindexed from 1) H60 D62 D174 N311 H441
Enzyme Commision number 3.2.1.114: mannosyl-oligosaccharide 1,3-1,6-alpha-mannosidase.
Interaction with ligand
Site
#		 Ligand Ligand
chain		 Binding residues on receptor
(original residue number in PDB)		 Binding residues on receptor
(residue number reindexed from 1)		 Binding affinity
BS01 MAN A H90 D92 W95 D204 F206 R228 Y269 N341 W415 H471 D472 Y727 R876 H60 D62 W65 D174 F176 R198 Y239 N311 W385 H441 D442 Y697 R846
BS02 ZN A H90 D92 D204 H471 H60 D62 D174 H441
Gene Ontology
Molecular Function
GO:0003824 catalytic activity
GO:0004559 alpha-mannosidase activity
GO:0004572 mannosyl-oligosaccharide 1,3-1,6-alpha-mannosidase activity
GO:0015923 mannosidase activity
GO:0016798 hydrolase activity, acting on glycosyl bonds
GO:0030246 carbohydrate binding
GO:0046872 metal ion binding
Biological Process
GO:0005975 carbohydrate metabolic process
GO:0006013 mannose metabolic process
GO:0006486 protein glycosylation
GO:0006491 N-glycan processing
GO:0016063 rhodopsin biosynthetic process
GO:0035010 encapsulation of foreign target
Cellular Component
GO:0000139 Golgi membrane
GO:0005783 endoplasmic reticulum
GO:0005794 Golgi apparatus
GO:0005795 Golgi stack
GO:0016020 membrane

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Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:3bup, PDBe:3bup, PDBj:3bup
PDBsum3bup
PubMed18558690
UniProtQ24451|MAN2_DROME Alpha-mannosidase 2 (Gene Name=alpha-Man-IIa)

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