Structure of PDB 5a6b Chain B

Receptor sequence
>5a6bB (length=617) Species: 170187 (Streptococcus pneumoniae TIGR4) [Search protein sequence]
SMASMVRFTGLSLKQTQAIEVLKGHISLPDVEVAVTQSDQASISIEGEEG
HYQLTYRKPHQLYRALSLLVTVLAEADKVEIEEQAAYEDLAYMVDCSRNA
VLNVASAKQMIEILALMGYSTFELYMEDTYQIEGQPYFGYFRGAYSAEEL
QEIEAYAQQFDVTFVPCIQTLAHLSAFVKWGVKEVQELRDVEDILLIGEE
KVYDLIDGMFATLSKLKTRKVNIGMDEAHLVGLGRYLILNGVVDRSLLMC
QHLERVLDIADKYGFHCQMWSDMFFKLPEETRVYLDRLKDRVTLVYWDYY
QDSEEKYNRNFRNHHKISHDLAFAGGAWKWIGFTPHNHFSRLVAIEANKA
CRANQIKEVIVTGWGDNGGETAQFSILPSLQIWAELSYRNDLDGLSAHFK
TNTGLTVEDFMQIDLANLLPDLPGNLSGINPNRYVFYQDILCPILDQHMT
PEQDKPHFAQAAETLANIKEKAGNYAYLFETQAQLNAILSSKVDVGRRIR
QAYQADDKESLQQIARQELPELRSQIEDFHALFSHQWLKENKVFGLDTVD
IRMGGLLQRIKRAESRIEVYLAGQLDRIDELEVEILPFTDFYADKDFAAT
TANQWHTIATASTIYTT
3D structure
PDB5a6b A Second beta-Hexosaminidase Encoded in the Streptococcus pneumoniae Genome Provides an Expanded Biochemical Ability to Degrade Host Glycans.
ChainB
Resolution1.77 Å
3D
structure
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Enzymatic activity
Enzyme Commision number ?
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 OAN B R94 W266 W306 Y308 Y309 W339 W373 D375 R98 W270 W297 Y299 Y300 W330 W364 D366 MOAD: Ki=7.9nM
PDBbind-CN: -logKd/Ki=8.10,Ki=7.9nM
BS02 MG B S574 R575 S565 R566
Gene Ontology
Molecular Function
GO:0004553 hydrolase activity, hydrolyzing O-glycosyl compounds
GO:0004563 beta-N-acetylhexosaminidase activity
GO:0015929 hexosaminidase activity
GO:0016787 hydrolase activity
Biological Process
GO:0005975 carbohydrate metabolic process

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Molecular Function
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Biological Process
External links
PDB RCSB:5a6b, PDBe:5a6b, PDBj:5a6b
PDBsum5a6b
PubMed26491009
UniProtA0A0H2US73

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