Structure of PDB 3k8m Chain B

Receptor sequence
>3k8mB (length=646) Species: 818 (Bacteroides thetaiotaomicron) [Search protein sequence]
QWTALTASPDTWDETKRADISYQLLLYSFADSDGDGYGDLNGVTQKLDYL
NQLGVKALWLSPIHPCMSYHGYDVTDYTKVNPQLGTESDFDRLVTEAHNR
GIKIYLDYVMNHTGTAHPWFTEASSSSESPYRNYYSFSEDPKTDIAAGKI
AMITQEGAAGYNAAEWFQVSDETAAVKGLLKFTLDWSNAPSPILVVSTGT
KADEDNPDTGTDNAKYLYYGEDICKKFYDKGNNIYELTVDFESTWGLLIR
TSNASFWPSGTKYGASSSSEKLALNKDFKLTNAGNPANIMFDSQQITYFH
SHFCTDWFADLNYGPVDQAGESPAYQAIADAAKGWIARGVDGLRLDAVKH
IYHSETSEENPRFLKMFYEDMNAYYKQKGHTDDFYMIGEVLSEYDKVAPY
YKGLPALFEFSFWYRLEWGINNSTGCYFAKDILSYQQKYANYRSDYIEAT
KLSNHDEDRTSSKLGKSADKCKLAAAVLLTSAGHPYIYYGEELGLYGTKD
NGDEYVRSPMLWGDSYTTNYTDKTDATVSKNVKTVADQQADTHSLLNIYF
SLTRLRNTYPALAEGNMTKHSVYNESQEKDYKPIAAWYMTKDNEKLLVIH
NFGGTAMQLPLTDKIEKVLFVNGETQQNTYTLKLGGYASVVFKLGN
3D structure
PDB3k8m SusG: A Unique Cell-Membrane-Associated alpha-Amylase from a Prominent Human Gut Symbiont Targets Complex Starch Molecules.
ChainB
Resolution2.5 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) D149 R386 D388 E431 H497 D498
Catalytic site (residue number reindexed from 1) D107 R344 D346 E389 H455 D456
Enzyme Commision number 3.2.1.1: alpha-amylase.
Interaction with ligand
Gene Ontology
Molecular Function
GO:0000287 magnesium ion binding
GO:0004556 alpha-amylase activity
GO:0005509 calcium ion binding
GO:0016798 hydrolase activity, acting on glycosyl bonds
GO:0046872 metal ion binding
GO:2001070 starch binding
Biological Process
GO:0000272 polysaccharide catabolic process
GO:0005975 carbohydrate metabolic process
GO:0005983 starch catabolic process
GO:0009313 oligosaccharide catabolic process
Cellular Component
GO:0009279 cell outer membrane
GO:0019867 outer membrane

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Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:3k8m, PDBe:3k8m, PDBj:3k8m
PDBsum3k8m
PubMed20159465
UniProtQ8A1G3|SUSG_BACTN Alpha-amylase SusG (Gene Name=susG)

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