Structure of PDB 2qv6 Chain C Binding Site BS03

Receptor Information

>2qv6 Chain C (length=252) Species: 2190 (Methanocaldococcus jannaschii) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]

MIQITVIQIDNYGPWTVTPNPRRESDLQALQSRLYADLNLMFGAHKGLVF
YTRFDNLIAITNGIDLITHKRIQESIRNRYPFTVSMVIASAETPYEAQKL
ATETLQEYGSAQDENRKEVLDVANELVVDGYVQIAHIDINNITGTLTDIV
SAYDTYLNVNKVKLALMEELLKYNALLFFIGGDNFMAPSNGMSEEDFLDI
FNRINKKYKIELKAGIGIGRTAEDASNLADIGLEKIRGKLVDKNVCTLKQ
DD

Ligand information

Ligand ID

InChI

InChI=1S/Ca/q+2

InChIKey

BHPQYMZQTOCNFJ-UHFFFAOYSA-N

SMILES

Software	SMILES
CACTVS 3.341	[Ca++]
ACDLabs 10.04 OpenEye OEToolkits 1.5.0	[Ca+2]

Formula

Name

CALCIUM ION

PDB chain

2qv6 Chain C Residue 302 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]

Receptor-Ligand Complex Structure

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Structure summary

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PDB	2qv6 A New Use for a Familiar Fold: The X-ray Crystal Structure of GTP-Bound GTP Cyclohydrolase III from Methanocaldococcus jannaschii Reveals a Two Metal Ion Catalytic Mechanism
Resolution	2.0 Å
Binding residue (original residue number in PDB)	D138 I139 D183
Binding residue (residue number reindexed from 1)	D138 I139 D183
Annotation score	1

Enzymatic activity

Enzyme Commision number

3.5.4.29: GTP cyclohydrolase IIa.

Gene Ontology

	Molecular Function
GO:0005525	GTP binding
GO:0016787	hydrolase activity
GO:0016814	hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds, in cyclic amidines
GO:0043740	GTP cyclohydrolase IIa activity

	Biological Process
GO:0009058	biosynthetic process

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Molecular Function

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Biological Process

External links

PDB	RCSB:2qv6, PDBe:2qv6, PDBj:2qv6
PDBsum	2qv6
PubMed	18052207
UniProt	Q57609\|GCH3_METJA GTP cyclohydrolase III (Gene Name=gch3)

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