5AYY	Transferase	date	Sep 14, 2015
title	Crystal Structure Of Human Quinolinate Phosphoribosyltransfe Complex With The Reactant Quinolinate
authors	H.S.Youn, T.G.Kim, M.K.Kim, G.B.Kang, J.Y.Kang, Y.J.Seo, J.G.Lee, J K.R.Park, Y.Lee, Y.J.Im, J.H.Lee, S.I.Fukuoka, S.H.Eom
compound		source
Molecule: Nicotinate-Nucleotide Pyrophosphorylase [Carboxyl Chain: A, B, C, D, E, F, G, H, I Synonym: Quinolinate Phosphoribosyltransferase [Decarboxyla Ec: 2.4.2.19 Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Hel-S-90n, Qprt Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_vector: Pet21a
symmetry	Space Group: P 32 2 1	R_factor 0.185 R_Free 0.239
crystal cell	length a length b length c angle alpha angle beta angle gamma 174.245 174.245 211.684 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	3.09 Å
ligand	NTM	enzyme	Transferase E.C.2.4.2.19 BRENDA
note	5AYY supersedes 4R3X
Gene Ontology	Chain Function Process Component F, A, E, B, H, C, D, I, G
Primary reference	Structural Insights into the Quaternary Catalytic Mechanism of Hexameric Human Quinolinate Phosphoribosyltransferase, a Key Enzyme in de novo NAD Biosynthesis., Youn HS, Gyun Kim T, Kim MK, Bu Kang G, Youn Kang J, Lee JG, Yop An J, Ryoung Park K, Lee Y, Jun Im Y, Hyuck Lee J, Hyun Eom S, Sci Rep. 2016 Jan 25;6:19681. doi: 10.1038/srep19681. PMID:26805589

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (386 Kb) [Save to disk] Biological Unit Coordinates (5ayy.pdb1.gz) 254 Kb Biological Unit Coordinates (5ayy.pdb2.gz) 254 Kb LPC: Ligand-Protein Contacts for 5AYY CSU: Contacts of Structural Units for 5AYY Structure Factors (1428 Kb) Retrieve 5AYY in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 5AYY from S2C, [Save to disk] Re-refined 5ayy structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

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Structure-derived information

Electron Density related parameters from EDS Electron Density Server, at Upsala Dipole moment, from Dipole Server at Weizmann Institute

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [5ayy_H] [5ayy_A] [5ayy_I] [5ayy_C] [5ayy_E] [5ayy_G] [5ayy] [5ayy_B] [5ayy_D] [5ayy_F] SWISS-PROT database: Domain organization of by SWISSPFAM

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