Structure of PDB 1v0f Chain D

Receptor sequence
>1v0fD (length=666) Species: 344021 (Escherichia phage K1F) [Search protein sequence]
SAKGDGVTDDTAALTSALNDTPVGQKINGNGKTYKVTSLPDISRFINTRF
VYERIPGQPLYYASEEFVQGELFKITDTPYYNAWPQDKAFVYENVIYAPY
MGSDRHGVSRLHVSWVKSGDDGQTWSTPEWLTDLHPDYPTVNYHCMSMGV
CRNRLFAMIETRTLAKNALTNCALWDRPMSRSLHLTGGITKAANQRYATI
HVPDHGLFVGDFVNFSNSAVTGVSGDMTVATVIDKDNFTVLTPNQQTSDL
NNAGKNWHMGTSFHKSPWRKTDLGLIPSVTEVHSFATIDNNGFAMGYHQG
DVAPREVGLFYFPDAFNSPSNYVRRQIPSEYEPDASEPCIKYYDGVLYLI
TRGTRGDRLGSSLHRSRDIGQTWESLRFPHNVHHTTLPFAKVGDDLIMFG
SERAENEWEAGAPDDRYKASYPRTFYARLNVNNWNADDIEWVNITDQIYQ
GGIVNSGVGVGSVVVKDNYIYYMFGGEDHFNPWTYGDNSAKDPFKSDGHP
SDLYCYKMKIGPDNRVSRDFRYGAVPNRAVPVFFDTNGVRTVPAPMEFTG
DLGLGHVTIRASTSSNIRSEVLMEGEYGFIGKSIPTDNPAGQRIIFCGGE
GTSSTTGAQITLYGANNTDSRRIVYNGDEHLFQSADVKPYNDNVTALGGP
SNRFTTAYLGSNPIVT
3D structure
PDB1v0f Crystal Structure of the Polysialic Acid-Degrading Endosialidase of Bacteriophage K1F
ChainD
Resolution2.55 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) Y325 H350 E581 R596 R647
Catalytic site (residue number reindexed from 1) Y81 H106 E337 R352 R403
Enzyme Commision number 3.2.1.129: endo-alpha-sialidase.
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 SIA D V464 T465 G466 S468 V220 T221 G222 S224
BS02 SIA D S460 S468 S216 S224
BS03 SLB D R837 I839 T846 S848 R593 I595 T602 S604
Gene Ontology
Molecular Function
GO:0016996 endo-alpha-(2,8)-sialidase activity

View graph for
Molecular Function
External links
PDB RCSB:1v0f, PDBe:1v0f, PDBj:1v0f
PDBsum1v0f
PubMed15608653
UniProtQ04830|FIBER_BPK1F Tail spike protein

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