1Y4A		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	15P, CA, CIT, NA	enzyme
related structures	by homologous chain: 1SUP, 1TM7, 1TMG
Gene Ontology	Chain Function Process Component E I
Primary reference	Role of the intramolecular hydrogen bond network in the inhibitory power of chymotrypsin inhibitor 2(,)., Radisky ES, Lu CJ, Kwan G, Koshland DE Jr, Biochemistry 2005 May 10;44(18):6823-30. PMID:15865427

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (64 Kb) [Save to disk] Biological Unit Coordinates (1y4a.pdb1.gz) 58 Kb LPC: Ligand-Protein Contacts for 1Y4A CSU: Contacts of Structural Units for 1Y4A Likely Quarternary Molecular Structure file(s) for 1Y4A Structure Factors (264 Kb) Retrieve 1Y4A in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1Y4A from S2C, [Save to disk] Re-refined 1y4a structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1Y4A 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: [1y4a] [1y4a_E] [1y4a_I] SWISS-PROT database: [Q40059] [P00782]

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