Descriptions

ASAP1 is an Arf GTPase-activating protein (GAP) that functions on membrane surfaces to catalyze the hydrolysis of GTP bound to Arf. ASAP1 has a BAR domain which functions as membrane curvature sensors or as inducers of membrane curvature. The BAR domain influences GAP activity by binding to the PH domain and/or Arf GAP domain. The deletion of the entire BAR domain or the N-terminal extension increased GAP activity.

Autoinhibitory domains (AIDs)

Target domain

338-425 (PH domain);451-574 (Arf GAP domain)

Relief mechanism

Partner binding

Assay

Accessory elements

No accessory elements

Autoinhibited structure

Activated structure

1 structures for Q1AAU6

Entry ID Method Resolution Chain Position Source
AF-Q1AAU6-F1 Predicted AlphaFoldDB

No variants for Q1AAU6

Variant ID(s) Position Change Description Diseaes Association Provenance
No variants for Q1AAU6

No associated diseases with Q1AAU6

8 regional properties for Q1AAU6

Type Name Position InterPro Accession
domain Arf GTPase activating protein 451 - 574 IPR001164
domain SH3 domain 1082 - 1144 IPR001452
domain Pleckstrin homology domain 336 - 430 IPR001849
repeat Ankyrin repeat 612 - 699 IPR002110
domain BAR domain 54 - 286 IPR004148
domain ASAP, PH domain 328 - 434 IPR037844
domain ASAP1, BAR domain 54 - 268 IPR037928
domain ASAP1, SH3 domain 1086 - 1142 IPR038016

Functions

Description
EC Number
Subcellular Localization
  • Cytoplasm
  • Membrane
  • Golgi apparatus
  • Golgi apparatus, trans-Golgi network
  • Predominantly cytoplasmic
  • Partially membrane-associated (By similarity)
PANTHER Family
PANTHER Subfamily
PANTHER Protein Class
PANTHER Pathway Category No pathway information available

5 GO annotations of cellular component

Name Definition
dendritic spine A small, membranous protrusion from a dendrite that forms a postsynaptic compartment, typically receiving input from a single presynapse. They function as partially isolated biochemical and an electrical compartments. Spine morphology is variable:they can be thin, stubby, mushroom, or branched, with a continuum of intermediate morphologies. They typically terminate in a bulb shape, linked to the dendritic shaft by a restriction. Spine remodeling is though to be involved in synaptic plasticity.
glutamatergic synapse A synapse that uses glutamate as a neurotransmitter.
Golgi membrane The lipid bilayer surrounding any of the compartments of the Golgi apparatus.
podosome An actin-rich adhesion structure characterized by formation upon cell substrate contact and localization at the substrate-attached part of the cell, contain an F-actin-rich core surrounded by a ring structure containing proteins such as vinculin and talin, and have a diameter of 0.5 mm.
trans-Golgi network membrane The lipid bilayer surrounding any of the compartments that make up the trans-Golgi network.

5 GO annotations of molecular function

Name Definition
GTPase activator activity Binds to and increases the activity of a GTPase, an enzyme that catalyzes the hydrolysis of GTP.
metal ion binding Binding to a metal ion.
phosphatidylinositol-3,4,5-trisphosphate binding Binding to phosphatidylinositol-3,4,5-trisphosphate, a derivative of phosphatidylinositol in which the inositol ring is phosphorylated at the 3', 4' and 5' positions.
phosphatidylinositol-4,5-bisphosphate binding Binding to phosphatidylinositol-4,5-bisphosphate, a derivative of phosphatidylinositol in which the inositol ring is phosphorylated at the 4' and 5' positions.
phosphatidylserine binding Binding to phosphatidylserine, a class of glycophospholipids in which a phosphatidyl group is esterified to the hydroxyl group of L-serine.

6 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.
negative regulation of dendritic spine development Any process that decreases the rate, frequency, or extent of dendritic spine development, the process whose specific outcome is the progression of the dendritic spine over time, from its formation to the mature structure.
positive regulation of membrane tubulation Any process that activates or increases the frequency, rate or extent of membrane tubulation.
positive regulation of podosome assembly Any process that activates or increases the rate or extent of podosome assembly.
protein localization to cilium A process in which a protein is transported to, or maintained in, a location within a cilium.
regulation of postsynapse organization Any process that modulates the physical form of a postsynapse.

15 homologous proteins in AiPD

UniProt AC Gene Name Protein Name Species Evidence Code
A5PK26 ACAP1 Arf-GAP with coiled-coil, ANK repeat and PH domain-containing protein 1 Bos taurus (Bovine) SS
O97902 ASAP1 Arf-GAP with SH3 domain, ANK repeat and PH domain-containing protein 1 Bos taurus (Bovine) SS
A1Z7A6 Asap ArfGAP with SH3 domain, ANK repeat and PH domain-containing protein Drosophila melanogaster (Fruit fly) SS
Q15027 ACAP1 Arf-GAP with coiled-coil, ANK repeat and PH domain-containing protein 1 Homo sapiens (Human) EV
O43150 ASAP2 Arf-GAP with SH3 domain, ANK repeat and PH domain-containing protein 2 Homo sapiens (Human) SS
Q15057 ACAP2 Arf-GAP with coiled-coil, ANK repeat and PH domain-containing protein 2 Homo sapiens (Human) PR
Q8TDY4 ASAP3 Arf-GAP with SH3 domain, ANK repeat and PH domain-containing protein 3 Homo sapiens (Human) SS
Q9ULH1 ASAP1 Arf-GAP with SH3 domain, ANK repeat and PH domain-containing protein 1 Homo sapiens (Human) EV
Q8K2H4 Acap1 Arf-GAP with coiled-coil, ANK repeat and PH domain-containing protein 1 Mus musculus (Mouse) SS
Q5U464 Asap3 Arf-GAP with SH3 domain, ANK repeat and PH domain-containing protein 3 Mus musculus (Mouse) SS
Q6ZQK5 Acap2 Arf-GAP with coiled-coil, ANK repeat and PH domain-containing protein 2 Mus musculus (Mouse) PR
Q7SIG6 Asap2 Arf-GAP with SH3 domain, ANK repeat and PH domain-containing protein 2 Mus musculus (Mouse) SS
Q9QWY8 Asap1 Arf-GAP with SH3 domain, ANK repeat and PH domain-containing protein 1 Mus musculus (Mouse) SS
Q9C6C3 AGD2 ADP-ribosylation factor GTPase-activating protein AGD2 Arabidopsis thaliana (Mouse-ear cress) PR
Q9SMX5 AGD4 ADP-ribosylation factor GTPase-activating protein AGD4 Arabidopsis thaliana (Mouse-ear cress) PR
10 20 30 40 50 60
MRSSASRLSS FSSRDSLWNR MPDQISVSEF IAETTEDYNS PTTSSFTTRL HNCRNTVTLL
70 80 90 100 110 120
EEALDQDRTA LQKVKKSVKA IYNSGQDHVQ NEENYAQVLD KFGSNFLSRD NPDLGTAFVK
130 140 150 160 170 180
FSTLTKELST LLKNLLQGLS HNVIFTLDSL LKGDLKGVKG DLKKPFDKAW KDYEMKFTKI
190 200 210 220 230 240
EKEKREHAKQ HGMIRTEITG AEIAEEMEKE RRLFQLQMCE YLIKVNEIKT KKGVDLLQNL
250 260 270 280 290 300
IKYYHAQCNF FQDGLKTADK LKQYIEKLAA DLYNIKQTQD EEKKQLTALR DLIKSSLQLD
310 320 330 340 350 360
PKEVGGLYVP SRANSDSQSR QGGYSMHQLQ GNKEYGSEKK GFLLKKSDGI RKVWQRRKCA
370 380 390 400 410 420
VKNGILTISH ATSNRQPAKL NLLTCQVKPN AEDKKSFDLI SHNRTYHFQA EDEQDYVAWI
430 440 450 460 470 480
SVLTNSKEEA LTMAFRGEQS TGENSLEDLT KAIIEDVQRL PGNDICCDCG SSEPTWLSTN
490 500 510 520 530 540
LGILTCIECS GIHREMGVHI SRIQSLELDK LGTSELLLAK NVGNNSFNDI MEANLPSPSP
550 560 570 580 590 600
KPTPSSDMTV RKEYITAKYV DHRFSRKTCA SSSAKLNELL EAIKSRDLLA LIQVYAEGVE
610 620 630 640 650 660
LMEPLLEPGQ ELGETALHLA VRTADQTSLH LVDFLVQNCG NLDKQTSVGN TVLHYCSMYG
670 680 690 700 710 720
KPECLKLLLR SKPTVDIVNQ NGETALDIAK RLKATQCEDL LSQAKSGKFN PHVHVEYEWN
730 740 750 760 770 780
LRQDEMDESD DDLDDKPSPI KKERSPRPQS FCHSSSISPQ DKLALPGFST PRDKQRLSYG
790 800 810 820 830 840
AFTNQIFVST STDLPTSPTS EAPPLPPRNA GKGPTGPPST LPLGTQTSSG SSTLSKKRSP
850 860 870 880 890 900
PPPPGHKRTL SDPPSPLPHG PPNKGAIPWG NDVGPSSSSK TANKFEGLSQ QASTSSAKTA
910 920 930 940 950 960
LGPRVLPKLP QKVALRKTET SHHLSLDRAN IPPETFQKSS QLSELPQKPP LGDLPPKPME
970 980 990 1000 1010 1020
LAPKPQIGEL PPKPGELPPK PQLGDLPPKP QLSDLPPKPQ MKDLPPKPQL GDLLAKSQAS
1030 1040 1050 1060 1070 1080
DLSAKVQPPS EVTQRSHTGD LSPNVQSRDA IQKQASEDSN DLTPTLPETP VPLPRKINTG
1090 1100 1110 1120 1130 1140
KNKVRRVKTI YDCQADNDDE LTFIEGEVII VTGEEDQEWW IGHIEGQPER KGVFPVSFVH
ILSD