1AX8	Cytokine	date	Oct 31, 1997
title	Human Obesity Protein, Leptin
authors	F.Zhang, J.M.Beals, S.L.Briggs, D.K.Clawson, J.P.Wery, R.W.Schev
compound		source
Molecule: Obesity Protein Chain: A Synonym: Leptin Engineered: Yes Mutation: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Cell_line: Bl21 Tissue: Adipose Gene: Obese Gene Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl21 (De3) Expression_system_cellular_location: Cytoplasm Expression_system_plasmid: Bl21
symmetry	Space Group: P 63	R_factor 0.185 R_Free 0.283
crystal cell	length a length b length c angle alpha angle beta angle gamma 88.140 88.140 48.050 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	2.40 Å
note	1AX8 (Molecule of the Month:pdb149)is a representative structure
Gene Ontology	Chain Function Process Component A hormone activity growth factor activity peptide hormone receptor bin... negative regulation of trans... ovulation from ovarian folli... response to hypoxia positive regulation of cytok... placenta development regulation of protein phosph... response to dietary excess glucose metabolic process regulation of gluconeogenesi... energy reserve metabolic pro... glycerol biosynthetic proces... lipid metabolic process tyrosine phosphorylation of ... female pregnancy response to nutrient circadian rhythm cholesterol metabolic proces... bile acid metabolic process regulation of blood pressure... positive regulation of cell ... adult feeding behavior fatty acid catabolic process... negative regulation of metab... regulation of metabolic proc... central nervous system neuro... insulin secretion regulation of intestinal cho... negative regulation of appet... response to insulin stimulus... response to vitamin E leptin-mediated signaling pa... positive regulation of lutei... bone mineralization involved... positive regulation of prote... hormone metabolic process positive regulation of tyros... eating behavior negative regulation of apopt... positive regulation of ion t... positive regulation of MAPK ... positive regulation of myelo... negative regulation of vasoc... positive regulation of JAK-S... positive regulation of insul... positive regulation of folli... positive regulation of devel... regulation of insulin secret... regulation of steroid biosyn... leukocyte tethering or rolli... regulation of lipoprotein li... adipose tissue development negative regulation of carti... negative regulation of gluca... cellular response to L-ascor... cellular response to retinoi... positive regulation of STAT ... negative regulation of gluta... positive regulation of hepat... extracellular region extracellular space
Primary reference	Crystal structure of the obese protein leptin-E100., Zhang F, Basinski MB, Beals JM, Briggs SL, Churgay LM, Clawson DK, DiMarchi RD, Furman TC, Hale JE, Hsiung HM, Schoner BE, Smith DP, Zhang XY, Wery JP, Schevitz RW, Nature 1997 May 8;387(6629):206-9. PMID:9144295

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (27 Kb) [Save to disk] Biological Unit Coordinates (1ax8.pdb1.gz) 23 Kb Biological Unit Coordinates (1ax8.pdb2.gz) 66 Kb CSU: Contacts of Structural Units for 1AX8 Likely Quarternary Molecular Structure file(s) for 1AX8 Structure Factors (89 Kb) Retrieve 1AX8 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1AX8 from S2C, [Save to disk] Re-refined 1ax8 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1AX8 in 3D

Proteopedia, because life has more than 2D. On Jmol, a nice Rasmol like molecule viewer. This is good for easiest viewing of basic structure. On FirstGlance, an excellent tool for a guided tour on the structure components, by E. Martz. On AstexViewer, from MSD-EBI (viewer documentation). On RasMol (Install RasMol freeware) Here's help on how to use RasMol.

Visual 3D analysis of 1AX8

Cartoon representation from PDB Cartoon Ramachandran plot from PDBSum

Structure-derived information

Electron Density related parameters from EDS Electron Density Server, at Upsala Dipole moment, from Dipole Server at Weizmann Institute Crystal Contacts, from CryCo at Weizmann Institute 3D motif for 1AX8, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1ax8__, region [Jmol] [rasmolscript] [script source] Fold representative 1ax8 from FSSP and Dali (Families of Structurally Similar Proteins) Class (fold), Architecture (subfold), Topology, Homologous superfamily from CATH Summaries and structural analyses of PDB data files from PDBSum Identification of Protein Pockets & Cavities at CASTp

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1ax8_A] SWISS-PROT database: [P41159] Domain organization of [LEP_HUMAN] by SWISSPFAM Alignments of the sequence of 1AX8 with the sequences similar proteins can be viewed for 1AX8's classification [LEP_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 [LEP_HUMAN] at ProtoMap. Click on the Cluster number.

Other resources with information on 1AX8

Community annotation for 1AX8 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

Movements, Movies and Images

Images from IMB Jena Image Library of Biological Macromolecules.

You may enter another PDB ID code

Go [Back], to the [PDB Lite page], to the [OCA Search page] or to the [PDB Home page]

---

OCA© by Jaime Prilusky, 1996-2010 Bioinformatics Unit Weizmann Institute of Science

---