3KQ4	Transport Protein	date	Nov 17, 2009
title	Structure Of Intrinsic Factor-Cobalamin Bound To Its Recepto
authors	C.B.F.Andersen, M.Madsen, S.K.Moestrup, G.R.Andersen
compound		source
Molecule: Gastric Intrinsic Factor Chain: A, C, E Fragment: Unp Residues 25-417 Synonym: Intrinsic Factor, Inf, If Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Gif, Ifmh Expression_system: Pichia Pastoris Expression_system_taxid: 4922
Molecule: Cubilin Chain: B, D, F Fragment: Unp Residues 932-1388 Synonym: Intrinsic Factor-Cobalamin Receptor, Intrinsic Fac Vitamin B12 Receptor, 460 Kda Receptor, Intestinal Intrinsi Receptor; Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Cubn, Ifcr Expression_system: Cricetulus Griseus Expression_system_taxid: 10029
symmetry	Space Group: C 2 2 21	R_factor 0.211 R_Free 0.243
crystal cell	length a length b length c angle alpha angle beta angle gamma 117.684 204.179 410.023 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	3.30 Å
ligand	B12, BMA, CA, MAN, NAG	enzyme
Gene Ontology	Chain Function Process Component A, C, E
Primary reference	Structural basis for receptor recognition of vitamin-B(12)-intrinsic factor complexes., Andersen CB, Madsen M, Storm T, Moestrup SK, Andersen GR, Nature. 2010 Mar 18;464(7287):445-8. PMID:20237569

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (876 Kb) [Save to disk] Biological Unit Coordinates (3kq4.pdb1.gz) 291 Kb Biological Unit Coordinates (3kq4.pdb2.gz) 292 Kb Biological Unit Coordinates (3kq4.pdb3.gz) 293 Kb LPC: Ligand-Protein Contacts for 3KQ4 CSU: Contacts of Structural Units for 3KQ4 Structure Factors (605 Kb) Retrieve 3KQ4 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3KQ4 from S2C, [Save to disk] Re-refined 3kq4 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3KQ4 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.

Visual 3D analysis of 3KQ4

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 3KQ4, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3kq4] [3kq4_E] [3kq4_D] [3kq4_B] [3kq4_A] [3kq4_C] [3kq4_F] SWISS-PROT database: Domain organization of by SWISSPFAM Domain found in 3KQ4: [CUB ] by SMART

Other resources with information on 3KQ4

Community annotation for 3KQ4 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

Movements, Movies and Images

Images from IMB Jena Image Library of Biological Macromolecules.

You may enter another PDB ID code

Go [Back], to the [PDB Lite page], to the [OCA Search page] or to the [PDB Home page]

---

OCA© by Jaime Prilusky, 1996-2014,2022 Bioinformatics Unit Weizmann Institute of Science

---