1AS4		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	ACT	enzyme
related structures	by homologous chain: 1QMN
Gene Ontology	Chain Function Process Component A
Primary reference	Engineering an anion-binding cavity in antichymotrypsin modulates the "spring-loaded" serpin-protease interaction., Lukacs CM, Rubin H, Christianson DW, Biochemistry 1998 Mar 10;37(10):3297-304. PMID:9521649

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (64 Kb) [Save to disk] Biological Unit Coordinates (1as4.pdb1.gz) 60 Kb LPC: Ligand-Protein Contacts for 1AS4 CSU: Contacts of Structural Units for 1AS4 Likely Quarternary Molecular Structure file(s) for 1AS4 Retrieve 1AS4 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1AS4 from S2C, [Save to disk]

View 1AS4 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: [1as4] [1as4_A] [1as4_B] SWISS-PROT database: [P01011] Domain found in 1AS4: [SERPIN ] by SMART

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