ISDA: 3HD6

Deposition Date 2009-05-06

Release Date 2009-09-01

Last Version Date 2023-09-06

Entry Detail

PDB ID:

3HD6

Keywords:

MEMBRANE PROTEIN, TRANSPORT PROTEIN

Title:

Crystal Structure of the Human Rhesus Glycoprotein RhCG

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Homo sapiens

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.10 Å

R-Value Free:

0.19

R-Value Work:

0.16

R-Value Observed:

0.16

Space Group:

P 63

Download Validation Report

Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Ammonium transporter Rh type C
Gene (Uniprot):RHCG
Chain IDs:A
Chain Length:490
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:Q9UBD6 Pfam ID:PF00909

Ligand Molecules

BOG

Primary Citation

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.Show

Proc.Natl.Acad.Sci.USA 107 9638 9643 (2010)

PMID: 20457942 DOI: 10.1073/pnas.1003587107

Abstact

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.

Legend

Protein

Chemical

Disease

Primary Citation of related structures