Structure of PDB 1p1k Chain A

Receptor sequence
>1p1kA (length=525) Species: 4932 (Saccharomyces cerevisiae) [Search protein sequence]
ITSVKVVTDKCTYKDNELLTKYSYENAVVTKTASGRFDVTPTVQDYVFKL
DLKKPEKLGIMLIGLGGNNGSTLVASVLANKHNVEFQTKEGVKQPNYFGS
MTQCSTLKLGIDAEGNDVYAPFNSLLPMVSPNDFVVSGWDINNADLYEAM
QRSQVLEYDLQQRLKAKMSLVKPLPSIYYPDFIAANQDERANNCINLDEK
GNVTTRGKWTHLQRIRRDIQNFKEENALDKVIVLWTANTERYVEVSPGVN
DTMENLLQSIKNDHEEIAPSTIFAAASILEGVPYINGSPQNTFVPGLVQL
AEHEGTFIAGDDLKSGQTKLKSVLAQFLVDAGIKPVSIASYNHLGNNDGY
NLSAPKQFRSKEISKSSVIDDIIASNDILYNDKLGKKVDHCIVIKYMKPV
GDSKVAMDEYYSELMLGGHNRISIHNVCEDSLLATPLIIDLLVMTEFCTR
VSYKKVDPVKEDAGKFENFYPVLTFLSYWLKAPLTRPGFHPVNGLNKQRT
ALENFLRLLIGLPSQNELRFEERLL
3D structure
PDB1p1k Structures of NAD(+)- and NADH-bound 1-l-myo-inositol 1-phosphate synthase.
ChainA
Resolution2.1 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) D320 K369 K412 K489
Catalytic site (residue number reindexed from 1) D312 K361 K404 K481
Enzyme Commision number 5.5.1.4: inositol-3-phosphate synthase.
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 NAI A G72 G75 N76 N77 D148 I149 S184 I185 R198 T244 A245 N246 T247 S296 L321 N355 D356 K369 D438 A442 G64 G67 N68 N69 D140 I141 S176 I177 R190 T236 A237 N238 T239 S288 L313 N347 D348 K361 D430 A434
Gene Ontology
Molecular Function
GO:0004512 inositol-3-phosphate synthase activity
GO:0016853 isomerase activity
Biological Process
GO:0006021 inositol biosynthetic process
GO:0008654 phospholipid biosynthetic process
Cellular Component
GO:0005737 cytoplasm

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Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:1p1k, PDBe:1p1k, PDBj:1p1k
PDBsum1p1k
PubMed12832758
UniProtP11986|INO1_YEAST Inositol-3-phosphate synthase (Gene Name=INO1)

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