Biological Assembly 1  

Global Symmetry: Cyclic - C3  (3D View)
Global Stoichiometry: Homo 3-mer - A3 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 54.47 kDa 
• Atom Count: 3,299 
• Modelled Residue Count: 403 
• Deposited Residue Count: 490 
• Unique protein chains: 1

 3HD6

Crystal Structure of the Human Rhesus Glycoprotein RhCG

• PDB DOI:  https://doi.org/10.2210/pdb3HD6/pdb

• Classification: MEMBRANE PROTEIN, TRANSPORT PROTEIN
• Organism(s): Homo sapiens
• Expression System: Homo sapiens
• Mutation(s): No 
• Membrane Protein: Yes  OPMPDBTMMemProtMDmpstruc


• Deposited: 2009-05-06 Released: 2009-09-01 
• Deposition Author(s): Gruswitz, F., Chaudhary, S., Ho, J.D., Pezeshki, B., Ho, C.-M., Stroud, R.M., Center for Structures of Membrane Proteins (CSMP)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free: 0.195 
• R-Value Work: 0.168 
• R-Value Observed: 0.170 

Literature

Function of human Rh based on structure of RhCG at 2.1 A.

Gruswitz, F., Chaudhary, S., Ho, J.D., Schlessinger, A., Pezeshki, B., Ho, C.M., Sali, A., Westhoff, C.M., Stroud, R.M.

(2010) Proc Natl Acad Sci U S A 107: 9638-9643

• PubMed: 20457942 
• DOI: https://doi.org/10.1073/pnas.1003587107
• Primary Citation of Related Structures:  
  3HD6


• PubMed Abstract: 
  

In humans, NH(3) transport across cell membranes is facilitated by the Rh (rhesus) family of proteins. Human Rh C glycoprotein (RhCG) forms a trimeric complex that plays an essential role in ammonia excretion and renal pH regulation. The X-ray crystallographic structure of human RhCG, determined at 2.1 A resolution, reveals the mechanism of ammonia transport. Each monomer contains 12 transmembrane helices, one more than in the bacterial homologs. Reconstituted into proteoliposomes, RhCG conducts NH(3) to raise internal pH. Models of the erythrocyte Rh complex based on our RhCG structure suggest that the erythrocytic Rh complex is composed of stochastically assembled heterotrimers of RhAG, RhD, and RhCE.

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Organizational Affiliation: 

Department of Biochemistry and Biophysics, S412C Genentech Hall, Center for the Structure of Membrane Proteins, and Membrane Protein Expression Center, University of California, San Francisco, CA 94158, USA.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Ammonium transporter Rh type C	A	490	Homo sapiens	Mutation(s): 0  Gene Names: C15orf6, CDRC2, PDRC2, RHCG, RHGK Membrane Entity: Yes
UniProt & NIH Common Fund Data Resources
Find proteins for Q9UBD6 (Homo sapiens) Explore Q9UBD6  Go to UniProtKB:  Q9UBD6
PHAROS:  Q9UBD6

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
BOG	B [auth A]	octyl beta-D-glucopyranoside C14 H28 O6 HEGSGKPQLMEBJL-RKQHYHRCSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free: 0.195 
• R-Value Work: 0.168 
• R-Value Observed: 0.170 
• Space Group: P 6₃

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 99.83	α = 90
b = 99.83	β = 90
c = 101.076	γ = 120

Software Package:

Software Name	Purpose
ADSC	data collection
PHASER	phasing
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2009-09-01 
Deposition Author(s): Gruswitz, F., Chaudhary, S., Ho, J.D., Pezeshki, B., Ho, C.-M., Stroud, R.M., Center for Structures of Membrane Proteins (CSMP)

Revision History  

• Version 1.0: 2009-09-01
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Advisory, Version format compliance
• Version 1.2: 2018-01-24
  Changes: Structure summary
• Version 1.3: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Data collection, Derived calculations, Structure summary
• Version 1.4: 2021-03-31
  Changes: Source and taxonomy, Structure summary