3CAS		date
authors
compound		source
symmetry		R_factor R_Free
crystal cell	length a length b length c angle alpha angle beta angle gamma
method	X-Ray Diffraction	resolution
ligand	ASD, BME, EDO, NAP	enzyme
Gene Ontology	Chain Function Process Component B, A
Primary reference	Crystal structures of human Delta4-3-ketosteroid 5beta-reductase (AKR1D1) reveal the presence of an alternative binding site responsible for substrate inhibition., Faucher F, Cantin L, Luu-The V, Labrie F, Breton R, Biochemistry. 2008 Dec 23;47(51):13537-46. PMID:19075558

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (122 Kb) [Save to disk] Biological Unit Coordinates (3cas.pdb1.gz) 59 Kb Biological Unit Coordinates (3cas.pdb2.gz) 60 Kb LPC: Ligand-Protein Contacts for 3CAS CSU: Contacts of Structural Units for 3CAS Likely Quarternary Molecular Structure file(s) for 3CAS Structure Factors (375 Kb) Retrieve 3CAS in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3CAS from S2C, [Save to disk] Re-refined 3cas structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3CAS 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.

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3cas] [3cas_A] [3cas_B] SWISS-PROT database: [P51857]

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