Structure of PDB 3fy1 Chain B

Receptor sequence
>3fy1B (length=373) Species: 9606 (Homo sapiens) [Search protein sequence]
YQLTCYFTNWAQYRPGLGRFMPDDINPCLCTHLIYAFAGMQNNEITTIEW
NDVTLYQAFNGLKNKNSQLKTLLAIGGWNFGTAPFTAMVSTPENRQTFIT
SVIKFLRQYEFDGLDFDWEYPGSRGSPPQDKHLFTVLVQEMREAFEQEAK
QINKPRLMVTAAVAAGISNIQSGYEIPQLSQYLDYIHVMTYDLHGSWEGY
TGENSPLYKYPTDTGSNAYLNVDYVMNYWKDNGAPAEKLIVGFPTYGHNF
ILSNPSNTGIGAPTSGAGPAGPYAKESGIWAYYEICTFLKNGATQGWDAP
QEVPYAYQGNVWVGYDNVKSFDIKAQWLKHNKFGGAMVWAIDLDDFTGTF
CNQGKFPLISTLKKALGLQSASC
3D structure
PDB3fy1 Triad of polar residues implicated in pH specificity of acidic mammalian chitinase.
ChainB
Resolution1.7 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) D136 D138 E140 Y212
Catalytic site (residue number reindexed from 1) D115 D117 E119 Y191
Enzyme Commision number 3.2.1.14: chitinase.
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 NA1 B W31 N100 E297 W10 N79 E276
BS02 AMI B Y27 W99 D138 E140 M210 Y212 Y267 W360 Y6 W78 D117 E119 M189 Y191 Y246 W339
Gene Ontology
Molecular Function
GO:0004553 hydrolase activity, hydrolyzing O-glycosyl compounds
GO:0008061 chitin binding
Biological Process
GO:0005975 carbohydrate metabolic process

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Molecular Function
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Biological Process
External links
PDB RCSB:3fy1, PDBe:3fy1, PDBj:3fy1
PDBsum3fy1
PubMed19241384
UniProtQ9BZP6|CHIA_HUMAN Acidic mammalian chitinase (Gene Name=CHIA)

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