Structure of PDB 3ikr Chain A Binding Site BS01

Receptor Information

>3ikr Chain A (length=152) Species: 9606 (Homo sapiens) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]

VASLRQQVEALQGQVQHLQAAFSQYKKVELFPNGQSVGEKIFKTAGFVKP
FTEAQLLCTQAGGQLASPRSAAENAALQQLVVAKNEAAFLSMTDSKTEGK
FTYPTGESLVYSNWAPGEPNDDGGSEDCVEIFTNGKWNDRACGEKRLVVC
EF

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

3ikr Chain A Residue 401 [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	3ikr Structural characterisation of ligand-binding determinants in human lung surfactant protein D: influence of Asp325
Resolution	1.65 Å
Binding residue (original residue number in PDB)	E321 N323 E329 N341 D342
Binding residue (residue number reindexed from 1)	E118 N120 E126 N138 D139
Annotation score	4

Enzymatic activity

Enzyme Commision number

External links

PDB	RCSB:3ikr, PDBe:3ikr, PDBj:3ikr
PDBsum	3ikr
PubMed	19799916
UniProt	P35247\|SFTPD_HUMAN Pulmonary surfactant-associated protein D (Gene Name=SFTPD)

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