1RFX

Crystal Structure of resisitin

PDB DOI: https://doi.org/10.2210/pdb1RFX/pdb

Classification: HORMONE/GROWTH FACTOR
Organism(s): Mus musculus
Expression System: Homo sapiens
Mutation(s): No
Membrane Protein: Yes OPM

Deposited: 2003-11-10 Released: 2004-06-08
Deposition Author(s): Patel, S.D., Rajala, M.W., Scherer, P.E., Shapiro, L., Burley, S.K., New York SGX Research Center for Structural Genomics (NYSGXRC)

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.00 Å
R-Value Free: 0.216
R-Value Work: 0.177
R-Value Observed: 0.179

wwPDB Validation 3D Report Full Report

This is version 1.3 of the entry. See complete history.

Literature

Disulfide-dependent multimeric assembly of resistin family hormones

Patel, S.D., Rajala, M.W., Rossetti, L., Scherer, P.E., Shapiro, L.

(2004) Science 304: 1154-1158

PubMed: 15155948 Search on PubMed
DOI: https://doi.org/10.1126/science.1093466
Primary Citation of Related Structures:
1RFX, 1RGX, 1RH7

PubMed Abstract:
Resistin, founding member of the resistin-like molecule (RELM) hormone family, is secreted selectively from adipocytes and induces liver-specific antagonism of insulin action, thus providing a potential molecular link between obesity and diabetes. Crystal structures of resistin and RELMbeta reveal an unusual multimeric structure. Each protomer comprises a carboxy-terminal disulfide-rich beta-sandwich "head" domain and an amino-terminal alpha-helical "tail" segment. The alpha-helical segments associate to form three-stranded coiled coils, and surface-exposed interchain disulfide linkages mediate the formation of tail-to-tail hexamers. Analysis of serum samples shows that resistin circulates in two distinct assembly states, likely corresponding to hexamers and trimers. Infusion of a resistin mutant, lacking the intertrimer disulfide bonds, in pancreatic-insulin clamp studies reveals substantially more potent effects on hepatic insulin sensitivity than those observed with wild-type resistin. This result suggests that processing of the intertrimer disulfide bonds may reflect an obligatory step toward activation.

Organizational Affiliation

Department of Biochemistry and Molecular Biophysics, Columbia University, New York, NY 10032, USA.

Macromolecule Content

Total Structure Weight: 31.61 kDa
Atom Count: 2,279
Modelled Residue Count: 267
Deposited Residue Count: 282
Unique protein chains: 1

Macromolecules

Find similar proteins by:

(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Resistin	A, B, C	94	Mus musculus	Mutation(s): 0 Gene Names: RETN Membrane Entity: Yes
UniProt
Find proteins for Q99P87 (Mus musculus) Explore Q99P87 Go to UniProtKB: Q99P87
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	Q99P87
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 4 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
PGE Query on PGE Download Ideal Coordinates CCD File SDF format, chain R [auth B] MOL2 format, chain R [auth B]	R [auth B]	TRIETHYLENE GLYCOL C₆ H₁₄ O₄ ZIBGPFATKBEMQZ-UHFFFAOYSA-N		Interactions Focus chain R [auth B] Interactions & Density Focus chain R [auth B]
PEG Query on PEG Download Ideal Coordinates CCD File SDF format, chain S [auth B] MOL2 format, chain S [auth B]	S [auth B]	DI(HYDROXYETHYL)ETHER C₄ H₁₀ O₃ MTHSVFCYNBDYFN-UHFFFAOYSA-N		Interactions Focus chain S [auth B] Interactions & Density Focus chain S [auth B]
ACT Query on ACT Download Ideal Coordinates CCD File SDF format, chain I [auth A] SDF format, chain J [auth A] SDF format, chain K [auth A] SDF format, chain P [auth B] SDF format, chain Q [auth B] SDF format, chain V [auth C] SDF format, chain W [auth C] MOL2 format, chain I [auth A] MOL2 format, chain J [auth A] MOL2 format, chain K [auth A] MOL2 format, chain P [auth B] MOL2 format, chain Q [auth B] MOL2 format, chain V [auth C] MOL2 format, chain W [auth C]	I [auth A] J [auth A] K [auth A] P [auth B] Q [auth B] I [auth A], J [auth A], K [auth A], P [auth B], Q [auth B], V [auth C], W [auth C]	ACETATE ION C₂ H₃ O₂ QTBSBXVTEAMEQO-UHFFFAOYSA-M		Interactions Focus chain I [auth A] Focus chain J [auth A] Focus chain K [auth A] Focus chain P [auth B] Focus chain Q [auth B] Focus chain V [auth C] Focus chain W [auth C] Interactions & Density Focus chain I [auth A] Focus chain J [auth A] Focus chain K [auth A] Focus chain P [auth B] Focus chain Q [auth B] Focus chain V [auth C] Focus chain W [auth C]
CL Query on CL Download Ideal Coordinates CCD File SDF format, chain D [auth A] SDF format, chain E [auth A] SDF format, chain F [auth A] SDF format, chain G [auth A] SDF format, chain H [auth A] SDF format, chain L [auth B] SDF format, chain M [auth B] SDF format, chain N [auth B] SDF format, chain O [auth B] SDF format, chain T [auth C] SDF format, chain U [auth C] MOL2 format, chain D [auth A] MOL2 format, chain E [auth A] MOL2 format, chain F [auth A] MOL2 format, chain G [auth A] MOL2 format, chain H [auth A] MOL2 format, chain L [auth B] MOL2 format, chain M [auth B] MOL2 format, chain N [auth B] MOL2 format, chain O [auth B] MOL2 format, chain T [auth C] MOL2 format, chain U [auth C]	D [auth A] E [auth A] F [auth A] G [auth A] H [auth A] D [auth A], E [auth A], F [auth A], G [auth A], H [auth A], L [auth B], M [auth B], N [auth B], O [auth B], T [auth C], U [auth C]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M		Interactions Focus chain D [auth A] Focus chain E [auth A] Focus chain F [auth A] Focus chain G [auth A] Focus chain H [auth A] Focus chain L [auth B] Focus chain M [auth B] Focus chain N [auth B] Focus chain O [auth B] Focus chain T [auth C] Focus chain U [auth C] Interactions & Density Focus chain D [auth A] Focus chain E [auth A] Focus chain F [auth A] Focus chain G [auth A] Focus chain H [auth A] Focus chain L [auth B] Focus chain M [auth B] Focus chain N [auth B] Focus chain O [auth B] Focus chain T [auth C] Focus chain U [auth C]