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Protein

GTP-binding nuclear protein Ran

Gene

ran

Organism
Xenopus tropicalis (Western clawed frog) (Silurana tropicalis)
Status
Reviewed-Annotation score: -Experimental evidence at transcript leveli

Functioni

GTPase involved in nucleocytoplasmic transport, participating both to the import and the export from the nucleus of proteins and RNAs. Switches between a cytoplasmic GDP- and a nuclear GTP-bound state by nucleotide exchange and GTP hydrolysis. Nuclear import receptors such as importin beta bind their substrates only in the absence of GTP-bound RAN and release them upon direct interaction with GTP-bound RAN, while export receptors behave in the opposite way. Thereby, RAN controls cargo loading and release by transport receptors in the proper compartment and ensures the directionality of the transport. Interaction with RANBP1 induces a conformation change in the complex formed by XPO1 and RAN that triggers the release of the nuclear export signal of cargo proteins. RAN (GTP-bound form) triggers microtubule assembly at mitotic chromosomes and is required for normal mitotic spindle assembly and chromosome segregation. Required for normal progress through mitosis.By similarity

Cofactori

Mg2+By similarityNote: Mg2+ interacts primarily with the phosphate groups of the bound guanine nucleotide.By similarity

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Binding sitei68GTP; via amide nitrogenBy similarity1
Sitei69Essential for GTP hydrolysisBy similarity1

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Nucleotide bindingi18 – 25GTPBy similarity8
Nucleotide bindingi36 – 42GTPBy similarity7
Nucleotide bindingi122 – 125GTPBy similarity4
Nucleotide bindingi150 – 152GTPBy similarity3

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionDevelopmental protein
Biological processProtein transport, Transport
LigandGTP-binding, Magnesium, Metal-binding, Nucleotide-binding

Names & Taxonomyi

Protein namesi
Recommended name:
GTP-binding nuclear protein Ran
Alternative name(s):
GTPase Ran
Ras-like protein TC4
Ras-related nuclear protein
Gene namesi
Name:ran
OrganismiXenopus tropicalis (Western clawed frog) (Silurana tropicalis)
Taxonomic identifieri8364 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiAmphibiaBatrachiaAnuraPipoideaPipidaeXenopodinaeXenopusSilurana
Proteomesi
  • UP000008143 Componenti: Unassembled WGS sequence

Organism-specific databases

XenbaseiXB-GENE-489468. ran.

Subcellular locationi

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte; Source: COMPARTMENTS

Keywords - Cellular componenti

Cytoplasm, Nucleus

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00002087031 – 216GTP-binding nuclear protein RanAdd BLAST216

Proteomic databases

PaxDbiQ6GL85.

Interactioni

Subunit structurei

Monomer. Interacts with rangap1, which promotes ran-mediated GTP hydrolysis. Interacts with kpnb1. Interaction with kpnb1 inhibits rangap1-mediated stimulation of GTPase activity. Interacts with rcc1 which promotes the exchange of ran-bound GDP by GTP. Interaction with kpnb1 inhibits rcc1-mediated exchange of ran-bound GDP by GTP. Interacts (GTP-bound form) with tnpo1; the interaction is direct. Interacts with kpnb1 and with tnpo1; both inhibit ran GTPase activity. Interacts (via C-terminus) with ranbp1, which alleviates the inhibition of ran GTPase activity. Interacts with rangrf, which promotes the release of bound guanine nucleotide. Rangrf and rcc1 compete for an overlapping binding site on ran. Identified in a complex with kpna2 and cse1l; interaction with ranbp1 mediates dissociation of ran from this complex. Interaction with both ranbp1 and kpna2 promotes dissociation of the complex between ran and kpnb1. Identified in a complex composed of ran, rangap1 and ranbp1. Identified in a complex that contains tnpo1, ran and ranbp1. Identified in a nuclear export complex with xpo1. Interaction with ranbp1 or ranbp2 induces a conformation change in the complex formed by xpo1 and ran that triggers the release of the nuclear export signal of cargo proteins. Component of a nuclear export receptor complex composed of kpnb1, ran, snupn and xpo1 (By similarity).By similarity

Protein-protein interaction databases

STRINGi8364.ENSXETP00000049065.

Structurei

3D structure databases

ProteinModelPortaliQ6GL85.
SMRiQ6GL85.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni211 – 216Interaction with RANBP1By similarity6

Sequence similaritiesi

Belongs to the small GTPase superfamily. Ran family.Curated

Phylogenomic databases

eggNOGiKOG0096. Eukaryota.
ENOG410XNRS. LUCA.
HOGENOMiHOG000216664.
HOVERGENiHBG107376.
InParanoidiQ6GL85.
KOiK07936.

Family and domain databases

InterProiView protein in InterPro
IPR027417. P-loop_NTPase.
IPR002041. Ran_GTPase.
IPR005225. Small_GTP-bd_dom.
IPR001806. Small_GTPase.
PANTHERiPTHR24071. PTHR24071. 1 hit.
PfamiView protein in Pfam
PF00071. Ras. 1 hit.
PRINTSiPR00627. GTPRANTC4.
SUPFAMiSSF52540. SSF52540. 1 hit.
TIGRFAMsiTIGR00231. small_GTP. 1 hit.
PROSITEiView protein in PROSITE
PS51418. RAN. 1 hit.

Sequencei

Sequence statusi: Complete.

Q6GL85-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MAAQGEPQVQ FKLVLVGDGG TGKTTFVKRH LTGEFEKKYV ATLGVEVHPL
60 70 80 90 100
VFHTNRGPIK FNVWDTAGQE KFGGLRDGYY IQAQCAIIMF DVTSRVTYKN
110 120 130 140 150
VPNWHRDLVR VCENIPIVLC GNKVDIKDRK VKAKSIVFHR KKNLQYYDIS
160 170 180 190 200
AKSNYNFEKP FLWLARKLIG DPNFEFVAMP ALAPPEVVMD PALAAQYEQD
210
LQHAQATALP DEDDDL
Length:216
Mass (Da):24,455
Last modified:July 19, 2004 - v1
Checksum:iD5DB18FEFEAF4BA4
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BC074619 mRNA. Translation: AAH74619.1.
RefSeqiNP_001004829.1. NM_001004829.1.
UniGeneiStr.47018.

Genome annotation databases

GeneIDi448091.
KEGGixtr:448091.

Similar proteinsi

Entry informationi

Entry nameiRAN_XENTR
AccessioniPrimary (citable) accession number: Q6GL85
Entry historyiIntegrated into UniProtKB/Swiss-Prot: August 16, 2004
Last sequence update: July 19, 2004
Last modified: February 28, 2018
This is version 93 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome