2A01	Lipid Transport	date	Jun 15, 2005
title	Crystal Structure Of Lipid-Free Human Apolipoprotein A-I
authors	A.A.Ajees, G.M.Anantharamaiah, V.K.Mishra, M.M.Hussain, K.H.M.Murthy
compound		source
Molecule: Apolipoprotein A-I Chain: A, B, C		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Other_details: Blood Plasma
symmetry	Space Group: P 43	R_factor 0.228 R_Free 0.249
crystal cell	length a length b length c angle alpha angle beta angle gamma 127.780 127.780 130.130 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.40 Å
ligand	AC9	enzyme
subcellular loc.	Membrane localization by OPM: Secreted out side in side
Gene Ontology	Chain Function Process Component A, C, B beta-amyloid binding lipid transporter activity protein binding phospholipid binding phospholipid transporter act... high-density lipoprotein par... lipid binding cholesterol binding cholesterol transporter acti... enzyme binding apolipoprotein receptor bind... apolipoprotein A-I receptor ... identical protein binding lipase inhibitor activity phosphatidylcholine-sterol O... high-density lipoprotein par... lipoprotein particle binding... retinoid metabolic process regulation of protein phosph... endothelial cell proliferati... platelet degranulation negative regulation of cytok... lipid metabolic process phospholipid metabolic proce... phosphatidylcholine biosynth... cholesterol biosynthetic pro... transport lipid transport G-protein coupled receptor s... response to nutrient blood coagulation phototransduction, visible l... steroid metabolic process cholesterol metabolic proces... glucocorticoid metabolic pro... negative regulation of tumor... positive regulation of chole... negative regulation of very-... peripheral nervous system ax... phospholipid transport protein oxidation peptidyl-methionine modifica... lipid storage platelet activation regulation of intestinal cho... cholesterol transport adrenal gland development organ regeneration regulation of Cdc42 protein ... cholesterol efflux phospholipid efflux negative regulation of heter... high-density lipoprotein par... high-density lipoprotein par... high-density lipoprotein par... lipoprotein metabolic proces... lipoprotein biosynthetic pro... response to drug cholesterol homeostasis blood vessel endothelial cel... response to estrogen stimulu... reverse cholesterol transpor... cellular lipid metabolic pro... small molecule metabolic pro... negative regulation of inter... negative regulation of infla... protein stabilization positive regulation of hydro... negative regulation of hydro... positive regulation of trans... transmembrane transport phospholipid homeostasis negative regulation of lipas... negative regulation of cell ... negative regulation of respo... triglyceride homeostasis cholesterol import extracellular region extracellular space nucleus early endosome endoplasmic reticulum lumen cytosol plasma membrane endocytic vesicle cytoplasmic vesicle very-low-density lipoprotein... high-density lipoprotein par... spherical high-density lipop... secretory granule lumen
Primary reference	Crystal structure of human apolipoprotein A-I: Insights into its protective effect against cardiovascular diseases., Ajees AA, Anantharamaiah GM, Mishra VK, Hussain MM, Murthy HM, Proc Natl Acad Sci U S A. 2006 Feb 14;103(7):2126-31. Epub 2006 Feb 1. PMID:16452169

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (140 Kb) [Save to disk] Biological Unit Coordinates (2a01.pdb1.gz) 44 Kb Biological Unit Coordinates (2a01.pdb2.gz) 46 Kb Biological Unit Coordinates (2a01.pdb3.gz) 46 Kb LPC: Ligand-Protein Contacts for 2A01 CSU: Contacts of Structural Units for 2A01 Likely Quarternary Molecular Structure file(s) for 2A01 Structure Factors (688 Kb) Retrieve 2A01 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2A01 from S2C, [Save to disk] Re-refined 2a01 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2A01 in 3D

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Visual 3D analysis of 2A01

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Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute Crystal Contacts, from CryCo at Weizmann Institute 3D motif for 2A01, from MSDmotif at EBI Fold representative 2a01 from FSSP and Dali (Families of Structurally Similar Proteins)

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2a01_A] [2a01_B] [2a01_C] SWISS-PROT database: [P02647] Domain organization of [APOA1_HUMAN] by SWISSPFAM Alignments of the sequence of 2A01 with the sequences similar proteins can be viewed for 2A01's classification [APOA1_HUMAN] at ProtoMap. Click on "Neighbors List", then on the "See Alignments" button below the list. A sequence distance tree ("phylogenetic tree") can be viewed for 1ACL's classification [APOA1_HUMAN] at ProtoMap. Click on the Cluster number.

Other resources with information on 2A01

Community annotation for 2A01 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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