Descriptions

Small GTPases couple their GDP/GTP structural cycle to cytosol/membrane alternation to function as versatile molecular switches in the cell. Membrane localization of their active, GTP-bound form is pivotal to their ability to propagate information, and this requires their post-translational modification by lipids.<br>Arf GTPases are modified by a myristate attached to their N-terminus, which is shielded by intramolecular interactions in their inactive state. The myristoylated N-terminus of Arf is autoinhibitory in solution and is displaced by membranes, priming Arf GTPases for activation by their GEFs. Replacement of the N-terminal myristate by a 6xHis-tag preserves autoinhibition, representing that membranes unlock the N-terminal region to facilitate subsequent activation.

Autoinhibitory domains (AIDs)

Target domain

16-145 (Small GTP-binding protein domain)

Relief mechanism

Ligand binding

Assay

Accessory elements

No accessory elements

Autoinhibited structure

Activated structure

1 structures for Q5M9P8

Entry ID Method Resolution Chain Position Source
AF-Q5M9P8-F1 Predicted AlphaFoldDB

No variants for Q5M9P8

Variant ID(s) Position Change Description Diseaes Association Provenance
No variants for Q5M9P8

No associated diseases with Q5M9P8

1 regional properties for Q5M9P8

Type Name Position InterPro Accession
domain Small GTP-binding protein domain 16 - 175 IPR005225

Functions

Description
EC Number
Subcellular Localization
  • Cell projection, cilium membrane ; Peripheral membrane protein ; Cytoplasmic side
  • Cytoplasm, cytoskeleton, cilium axoneme
  • Cytoplasm, cytoskeleton, cilium basal body
PANTHER Family
PANTHER Subfamily
PANTHER Protein Class
PANTHER Pathway Category No pathway information available

2 GO annotations of cellular component

Name Definition
axoneme The bundle of microtubules and associated proteins that forms the core of cilia (also called flagella) in eukaryotic cells and is responsible for their movements.
ciliary membrane The portion of the plasma membrane surrounding a cilium.

3 GO annotations of molecular function

Name Definition
GTP binding Binding to GTP, guanosine triphosphate.
GTPase activity Catalysis of the reaction
metal ion binding Binding to a metal ion.

12 GO annotations of biological process

Name Definition
cilium assembly The assembly of a cilium, a specialized eukaryotic organelle that consists of a filiform extrusion of the cell surface. Each cilium is bounded by an extrusion of the cytoplasmic membrane, and contains a regular longitudinal array of microtubules, anchored basally in a centriole.
determination of left/right symmetry The establishment of an organism's body plan or part of an organism with respect to the left and right halves. The pattern can either be symmetric, such that the halves are mirror images, or asymmetric where the pattern deviates from this symmetry.
gastrulation A complex and coordinated series of cellular movements that occurs at the end of cleavage during embryonic development of most animals. The details of gastrulation vary from species to species, but usually result in the formation of the three primary germ layers, ectoderm, mesoderm and endoderm.
intracellular protein transport The directed movement of proteins in a cell, including the movement of proteins between specific compartments or structures within a cell, such as organelles of a eukaryotic cell.
Kupffer's vesicle development The progression of the Kupffer's vesicle over time from its initial formation until its mature state. The Kupffer's vesicle is a small but distinctive epithelial sac containing fluid, located midventrally posterior to the yolk cell or its extension, and transiently present during most of the segmentation period.
melanosome transport The directed movement of melanosomes into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
pectoral fin development The process whose specific outcome is the progression of the pectoral fin over time, from its formation to the mature structure.
protein localization to cilium A process in which a protein is transported to, or maintained in, a location within a cilium.
regulation of Notch signaling pathway Any process that modulates the frequency, rate or extent of the Notch signaling pathway.
response to stimulus Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a stimulus. The process begins with detection of the stimulus and ends with a change in state or activity or the cell or organism.
vesicle-mediated transport A cellular transport process in which transported substances are moved in membrane-bounded vesicles; transported substances are enclosed in the vesicle lumen or located in the vesicle membrane. The process begins with a step that directs a substance to the forming vesicle, and includes vesicle budding and coating. Vesicles are then targeted to, and fuse with, an acceptor membrane.
visual perception The series of events required for an organism to receive a visual stimulus, convert it to a molecular signal, and recognize and characterize the signal. Visual stimuli are detected in the form of photons and are processed to form an image.

46 homologous proteins in AiPD

UniProt AC Gene Name Protein Name Species Evidence Code
Q2KJ96 ARL5A ADP-ribosylation factor-like protein 5A Bos taurus (Bovine) SS
P84081 ARF2 ADP-ribosylation factor 2 Bos taurus (Bovine) SS
P84080 ARF1 ADP-ribosylation factor 1 Bos taurus (Bovine) SS
Q3SZF2 ARF4 ADP-ribosylation factor 4 Bos taurus (Bovine) SS
Q0VC18 ARL4D ADP-ribosylation factor-like protein 4D Bos taurus (Bovine) PR
P49702 ARF5 ADP-ribosylation factor 5 Gallus gallus (Chicken) SS
P40945 Arf4 ADP ribosylation factor 4 Drosophila melanogaster (Fruit fly) SS
P61209 Arf1 ADP-ribosylation factor 1 Drosophila melanogaster (Fruit fly) SS
P84085 ARF5 ADP-ribosylation factor 5 Homo sapiens (Human) EV
P61204 ARF3 ADP-ribosylation factor 3 Homo sapiens (Human) EV
A6NH57 ARL5C Putative ADP-ribosylation factor-like protein 5C Homo sapiens (Human) SS
Q969Q4 ARL11 ADP-ribosylation factor-like protein 11 Homo sapiens (Human) PR
Q9Y689 ARL5A ADP-ribosylation factor-like protein 5A Homo sapiens (Human) SS
P18085 ARF4 ADP-ribosylation factor 4 Homo sapiens (Human) EV
P49703 ARL4D ADP-ribosylation factor-like protein 4D Homo sapiens (Human) PR
Q8N4G2 ARL14 ADP-ribosylation factor-like protein 14 Homo sapiens (Human) SS
Q96KC2 ARL5B ADP-ribosylation factor-like protein 5B Homo sapiens (Human) SS
Q8IVW1 ARL17A ADP-ribosylation factor-like protein 17 Homo sapiens (Human) SS
P84077 ARF1 ADP-ribosylation factor 1 Homo sapiens (Human) EV
Q9H0F7 ARL6 ADP-ribosylation factor-like protein 6 Homo sapiens (Human) SS
P49076 ARF1 ADP-ribosylation factor Zea mays (Maize) SS
P84084 Arf5 ADP-ribosylation factor 5 Mus musculus (Mouse) SS
P61750 Arf4 ADP-ribosylation factor 4 Mus musculus (Mouse) SS
Q99PE9 Arl4d ADP-ribosylation factor-like protein 4D Mus musculus (Mouse) PR
Q6P068 Arl5c ADP-ribosylation factor-like protein 5C Mus musculus (Mouse) SS
Q80ZU0 Arl5a ADP-ribosylation factor-like protein 5A Mus musculus (Mouse) SS
P61205 Arf3 ADP-ribosylation factor 3 Mus musculus (Mouse) SS
Q9D4P0 Arl5b ADP-ribosylation factor-like protein 5B Mus musculus (Mouse) SS
P84078 Arf1 ADP-ribosylation factor 1 Mus musculus (Mouse) SS
Q8BSL7 Arf2 ADP-ribosylation factor 2 Mus musculus (Mouse) SS
P51824 ADP-ribosylation factor 1 Solanum tuberosum (Potato) SS
P84082 Arf2 ADP-ribosylation factor 2 Rattus norvegicus (Rat) SS
P51646 Arl5a ADP-ribosylation factor-like protein 5A Rattus norvegicus (Rat) SS
P84083 Arf5 ADP-ribosylation factor 5 Rattus norvegicus (Rat) SS
P36407 Trim23 E3 ubiquitin-protein ligase TRIM23 Rattus norvegicus (Rat) SS
P61751 Arf4 ADP-ribosylation factor 4 Rattus norvegicus (Rat) SS
P61206 Arf3 ADP-ribosylation factor 3 Rattus norvegicus (Rat) SS
P84079 Arf1 ADP-ribosylation factor 1 Rattus norvegicus (Rat) SS
Q06396 Os01g0813400 ADP-ribosylation factor 1 Oryza sativa subsp. japonica (Rice) SS
P51823 ARF ADP-ribosylation factor 2 Oryza sativa subsp. japonica (Rice) SS
Q10943 arf-1.2 ADP-ribosylation factor 1-like 2 Caenorhabditis elegans SS
P34212 arl-5 ADP-ribosylation factor-like protein 5 Caenorhabditis elegans SS
Q9LQC8 ARF2-A ADP-ribosylation factor 2-A Arabidopsis thaliana (Mouse-ear cress) SS
P0DH91 ARF2-B ADP-ribosylation factor 2-B Arabidopsis thaliana (Mouse-ear cress) SS
P40940 ARF3 ADP-ribosylation factor 3 Arabidopsis thaliana (Mouse-ear cress) SS
P36397 ARF1 ADP-ribosylation factor 1 Arabidopsis thaliana (Mouse-ear cress) SS
10 20 30 40 50 60
MGLFDKLAGW LGLKKKEVNV LCLGLDNSGK TTIINQLKPS NAQAQDIVPT IGFSIEKFKT
70 80 90 100 110 120
SSLSFTVFDM SGQGRYRNLW EHYYKEGQAI IFVIDSGDKL RMVVAKEELD TLLNHPDIKH
130 140 150 160 170 180
RRIPLLFFAN KMDLRDALSA VKVSQLLCLE NIKDKPWHIC ASDAVKGEGL LEGVDWLQDQ
IRAMKT