7HBI	Oxygen Transport	date	Jun 25, 1998
title	Scapharca Dimeric Hemoglobin, Mutant T72v, Co-Liganded Form
authors	W.E.Royer Junior
compound		source
Molecule: Hemoglobin Chain: A, B Engineered: Yes Mutation: Yes Other_details: Scapharca Dimeric Hemoglobin, Heme Group, Protoporphyrin Ix Iron		Organism_scientific: Scapharca Inaequivalvis Organism_common: Ark Clam Organism_taxid: 6561 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: W3110laciq Expression_system_plasmid: Pcs26
symmetry	Space Group: C 1 2 1	R_factor 0.194 R_Free 0.243
crystal cell	length a length b length c angle alpha angle beta angle gamma 93.340 43.840 83.480 90.00 121.96 90.00
method	X-Ray Diffraction	resolution	1.60 Å
ligand	CMO, HEM	enzyme
related structures	by homologous chain: 1HBI, 5HBI
Gene Ontology	Chain Function Process Component A, B
Primary reference	Mutational destabilization of the critical interface water cluster in Scapharca dimeric hemoglobin: structural basis for altered allosteric activity., Pardanani A, Gambacurta A, Ascoli F, Royer WE Jr, J Mol Biol 1998 Dec 4;284(3):729-39. PMID:9826511

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (55 Kb) [Save to disk] Biological Unit Coordinates (7hbi.pdb1.gz) 51 Kb LPC: Ligand-Protein Contacts for 7HBI CSU: Contacts of Structural Units for 7HBI Likely Quarternary Molecular Structure file(s) for 7HBI Structure Factors (238 Kb) Retrieve 7HBI in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 7HBI from S2C, [Save to disk] Re-refined 7hbi structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 7HBI in 3D

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Visual 3D analysis of 7HBI

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 3D motif for 7HBI, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d7hbia_, region A [Jmol] [rasmolscript] [script source]     - Domain d7hbib_, region B [Jmol] [rasmolscript] [script source] 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: [7hbi_A] [7hbi] [7hbi_B] SWISS-PROT database: [P02213] Domain organization of [GLB1_SCAIN] by SWISSPFAM

Other resources with information on 7HBI

Community annotation for 7HBI at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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