1EXZ	Hormone Growth Factor	date	May 05, 2000
title	Structure Of Stem Cell Factor
authors	Z.Zhang, R.Zhang, A.Joachimiak, J.Schlessinger, X.Kong
compound		source
Molecule: Stem Cell Factor Chain: A, B, C, D Fragment: 26-166 Synonym: Scf Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Expression_system: Escherichia Coli Expression_system_taxid: 562
symmetry	Space Group: P 1 21 1	R_factor 0.223 R_Free 0.294
crystal cell	length a length b length c angle alpha angle beta angle gamma 36.154 87.526 79.434 90.00 97.76 90.00
method	X-Ray Diffraction	resolution	2.30 Å
ligand	CA, SM, TRS	enzyme
note	1EXZ is a representative structure
related structures	by homologous chain: 1SCF
Gene Ontology	Chain Function Process Component A, D, C, B stem cell factor receptor bi... cell adhesion membrane
Primary reference	Crystal structure of human stem cell factor: implication for stem cell factor receptor dimerization and activation., Zhang Z, Zhang R, Joachimiak A, Schlessinger J, Kong XP, Proc Natl Acad Sci U S A 2000 Jul 5;97(14):7732-7. PMID:10884405

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (93 Kb) [Save to disk] Biological Unit Coordinates (1exz.pdb1.gz) 46 Kb Biological Unit Coordinates (1exz.pdb2.gz) 43 Kb Biological Unit Coordinates (1exz.pdb3.gz) 86 Kb LPC: Ligand-Protein Contacts for 1EXZ CSU: Contacts of Structural Units for 1EXZ Likely Quarternary Molecular Structure file(s) for 1EXZ Structure Factors (178 Kb) Retrieve 1EXZ in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1EXZ from S2C, [Save to disk] Re-refined 1exz structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1EXZ 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 1EXZ

Cartoon representation from PDB Cartoon Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute Crystal Contacts, from CryCo at Weizmann Institute 3D motif for 1EXZ, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1exza_, region A [Jmol] [rasmolscript] [script source]     - Domain d1exzb_, region B [Jmol] [rasmolscript] [script source]     - Domain d1exzc_, region C [Jmol] [rasmolscript] [script source]     - Domain d1exzd_, region D [Jmol] [rasmolscript] [script source] Fold representative 1exz 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: [1exz_A] [1exz_B] [1exz_C] [1exz_D] SWISS-PROT database: [P21583] Domain organization of [SCF_HUMAN] by SWISSPFAM Alignments of the sequence of 1EXZ with the sequences similar proteins can be viewed for 1EXZ's classification [SCF_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 [SCF_HUMAN] at ProtoMap. Click on the Cluster number.

Other resources with information on 1EXZ

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

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