Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B SuperfamilyRas-like P-loop GTPases 8057424 3002022 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyE set domains 8055021 3000070 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
ARase1ksjA1 A: a/b three-layered sandwichesX: P-loop domains-likeH: P-loop domains-relatedT: P-loop containing nucleoside triphosphate hydrolasesF: RasECOD (1.6)
BGMP_PDE_deltae1ksjB1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: GMP_PDE_deltaECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
A3.40.50.300 Alpha Beta 3-Layer(aba) Sandwich Rossmann fold P-loop containing nucleotide triphosphate hydrolasesCATH (4.3.0)
B2.70.50.40 Mainly Beta Distorted Sandwich Coagulation Factor XIII Chain A, domain 1CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF05351GMP-PDE, delta subunit (GMP_PDE_delta)GMP-PDE, delta subunit- Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
arf-like protein 2
RETINAL ROD RHODOPSIN-SENSITIVE CGMP 3',5'-CYCLIC PHOSPHODIESTERASE DELTA-SUBUNIT

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

ChainsEnzyme NameDescriptionCatalytic Residues
small GTPase superfamily, ARF type  M-CSA #628

The GTP dependent protein Arl-2 is part of a family of close relatives of the Arf proteins. Although the function of the Arf proteins themselves has been determined (they are involved in regulating vesicular transport) the function of the Arl family has not yet been determined. The protein Arl-2 interacts with PDEdelta which is a relative of the important signalling protein Rho, thus suggesting Arl-2 regulates transport by PDEdelta. As Ras interacts with Rho, it is not surprising that the mechanism of GTP hydrolysis employed by Arl-2 is similar to that found in Ras. Therefore study of this protein may shed insight into an area of highly important cancer research.

Defined by 1 residue: GLN:A-72 [auth A-70]
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