2GK1	Hydrolase	date	Mar 31, 2006
title	X-Ray Crystal Structure Of Ngt-Bound Hexa
authors	M.J.Lemieux, B.L.Mark, M.M.Cherney, S.G.Withers, D.J.Mahuran, M.N
compound		source
Molecule: Beta-Hexosaminidase Subunit Alpha Chain: A, C, E, G Fragment: Propeptide Residues 23-74 Synonym: Beta-N-Acetylhexosaminidase Subunit Alpha,Hexosami Subunit A,N-Acetyl-Beta-Glucosaminidase Subunit Alpha;		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Other_details: Human Placenta
Molecule: Beta-Hexosaminidase Subunit Alpha Chain: I, J, K, L Fragment: Residues 89-528 Synonym: Beta-N-Acetylhexosaminidase Subunit Alpha,Hexosami Subunit A,N-Acetyl-Beta-Glucosaminidase Subunit Alpha; Ec: 3.2.1.52		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Other_details: Human Placenta
Molecule: Beta-Hexosaminidase Subunit Beta Chain: B, D, F, H Fragment: Propeptide Residues 50-107 Synonym: Beta-N-Acetylhexosaminidase Subunit Beta,Hexosamin Subunit B,Cervical Cancer Proto-Oncogene 7 Protein,Hcc-7,N- Beta-Glucosaminidase Subunit Beta;		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Other_details: Human Placenta
Molecule: Beta-Hexosaminidase Subunit Beta Chain B Chain: M, O, Q, S Fragment: Residues 122-311 Synonym: Beta-N-Acetylhexosaminidase Subunit Beta,Hexosamin Subunit B,Cervical Cancer Proto-Oncogene 7 Protein,Hcc-7,N- Beta-Glucosaminidase Subunit Beta; Ec: 3.2.1.52		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Other_details: Human Placenta
Molecule: Beta-Hexosaminidase Subunit Beta Chain A Chain: N, P, R, T Fragment: Residues 316-552 Synonym: Beta-N-Acetylhexosaminidase Subunit Beta,Hexosamin Subunit B,Cervical Cancer Proto-Oncogene 7 Protein,Hcc-7,N- Beta-Glucosaminidase Subunit Beta; Ec: 3.2.1.52		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Other_details: Human Placenta
symmetry	Space Group: C 1 2 1	R_factor 0.274 R_Free 0.322
crystal cell	length a length b length c angle alpha angle beta angle gamma 322.246 109.796 132.764 90.00 91.48 90.00
method	X-Ray Diffraction	resolution	3.25 Å
ligand	BMA, NAG, NGT BindingDB	enzyme	Hydrolase E.C.3.2.1.52 BRENDA
Gene Ontology	Chain Function Process Component S, O, J, T, N, P, K, Q, M, R, I, L
Primary reference	Crystallographic Structure of Human beta-Hexosaminidase A: Interpretation of Tay-Sachs Mutations and Loss of G(M2) Ganglioside Hydrolysis., Lemieux MJ, Mark BL, Cherney MM, Withers SG, Mahuran DJ, James MN, J Mol Biol. 2006 Apr 27;. PMID:16698036

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (621 Kb) [Save to disk] Biological Unit Coordinates (2gk1.pdb1.gz) 161 Kb Biological Unit Coordinates (2gk1.pdb2.gz) 160 Kb Biological Unit Coordinates (2gk1.pdb3.gz) 159 Kb Biological Unit Coordinates (2gk1.pdb4.gz) 312 Kb Biological Unit Coordinates (2gk1.pdb5.gz) 308 Kb Biological Unit Coordinates (2gk1.pdb6.gz) 158 Kb LPC: Ligand-Protein Contacts for 2GK1 CSU: Contacts of Structural Units for 2GK1 Likely Quarternary Molecular Structure file(s) for 2GK1 Structure Factors (624 Kb) Retrieve 2GK1 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2GK1 from S2C, [Save to disk] Re-refined 2gk1 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2GK1 in 3D

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Visual 3D analysis of 2GK1

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 2GK1, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2gk1] [2gk1_M] [2gk1_H] [2gk1_T] [2gk1_Q] [2gk1_A] [2gk1_B] [2gk1_I] [2gk1_L] [2gk1_D] [2gk1_R] [2gk1_G] [2gk1_K] [2gk1_C] [2gk1_O] [2gk1_F] [2gk1_S] [2gk1_P] [2gk1_E] [2gk1_N] [2gk1_J] SWISS-PROT database: [P06865] [P07686] Domain organization of [HEXA_HUMAN] [HEXB_HUMAN] by SWISSPFAM

Other resources with information on 2GK1

Community annotation for 2GK1 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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