Descriptions

ACAP1 (ArfGAP with coiled-coil, ankyrin repeat, and PH domains protein 1) is an ARF6 GAP that acts as a key component of a defined clathrin complex for endocytic recycling. A flexible linker region between the GAP and ANK domains acts to obstruct cargo binding, with a key residue within this region (Ser-554) regulating this obstruction. The excision of the linker region results in promoting cargo binding and integrin recycling.

Autoinhibitory domains (AIDs)

Target domain

403-525 (GAP domain)

Relief mechanism

PTM

Assay

Accessory elements

No accessory elements

Autoinhibited structure

Activated structure

1 structures for Q8K2H4

Entry ID Method Resolution Chain Position Source
AF-Q8K2H4-F1 Predicted AlphaFoldDB

34 variants for Q8K2H4

Variant ID(s) Position Change Description Diseaes Association Provenance
rs3402465193 86 S>R No EVA
rs3389170952 90 K>T No EVA
rs3389168923 158 A>V No EVA
rs3402360173 163 R>P No EVA
rs3401749561 166 Y>D No EVA
rs51339993 177 V>I No EVA
rs3401782969 178 N>S No EVA
rs3401782995 226 N>WA* No EVA
rs3401749577 239 E>* No EVA
rs3402376359 240 Q>H No EVA
rs3402438299 241 R>M No EVA
rs3389175196 250 L>I No EVA
rs3402382320 283 W>C No EVA
rs3401749578 284 S>C No EVA
rs3402539302 284 S>T No EVA
rs3389172702 298 Q>L No EVA
rs3389175182 320 C>S No EVA
rs3389184712 329 F>L No EVA
rs3389109259 331 V>L No EVA
rs217136871 383 A>S No EVA
rs3389170961 384 P>R No EVA
rs257928035 394 G>R No EVA
rs3389143423 414 V>M No EVA
rs47070859 488 R>Q No EVA
rs3389168918 500 S>C No EVA
rs3389178866 545 K>E No EVA
rs3389184708 581 H>N No EVA
rs1131733267 598 V>A No EVA
rs3402360275 600 W>S No EVA
rs1135353883 601 V>I No EVA
rs3389166328 618 N>I No EVA
rs3389143458 654 G>W No EVA
rs3389135260 710 E>K No EVA
rs230289785 738 H>Y No EVA

No associated diseases with Q8K2H4

5 regional properties for Q8K2H4

Type Name Position InterPro Accession
domain Arf GTPase activating protein 405 - 527 IPR001164
domain Pleckstrin homology domain 265 - 362 IPR001849
repeat Ankyrin repeat 576 - 671 IPR002110-1
repeat Ankyrin repeat 672 - 702 IPR002110-2
domain BAR domain 5 - 238 IPR004148

Functions

Description
EC Number
Subcellular Localization
  • Recycling endosome membrane ; Peripheral membrane protein ; Cytoplasmic side
PANTHER Family
PANTHER Subfamily
PANTHER Protein Class
PANTHER Pathway Category No pathway information available

1 GO annotations of cellular component

Name Definition
recycling endosome membrane The lipid bilayer surrounding a recycling endosome.

2 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.

2 GO annotations of biological process

Name Definition
lipid catabolic process The chemical reactions and pathways resulting in the breakdown of lipids, compounds soluble in an organic solvent but not, or sparingly, in an aqueous solvent.
signal transduction The cellular process in which a signal is conveyed to trigger a change in the activity or state of a cell. Signal transduction begins with reception of a signal (e.g. a ligand binding to a receptor or receptor activation by a stimulus such as light), or for signal transduction in the absence of ligand, signal-withdrawal or the activity of a constitutively active receptor. Signal transduction ends with regulation of a downstream cellular process, e.g. regulation of transcription or regulation of a metabolic process. Signal transduction covers signaling from receptors located on the surface of the cell and signaling via molecules located within the cell. For signaling between cells, signal transduction is restricted to events at and within the receiving cell.

15 homologous proteins in AiPD

UniProt AC Gene Name Protein Name Species Evidence Code
O97902 ASAP1 Arf-GAP with SH3 domain, ANK repeat and PH domain-containing protein 1 Bos taurus (Bovine) SS
A5PK26 ACAP1 Arf-GAP with coiled-coil, 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
O43150 ASAP2 Arf-GAP with SH3 domain, ANK repeat and PH domain-containing protein 2 Homo sapiens (Human) SS
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
Q15027 ACAP1 Arf-GAP with coiled-coil, ANK repeat and PH domain-containing protein 1 Homo sapiens (Human) EV
Q15057 ACAP2 Arf-GAP with coiled-coil, ANK repeat and PH domain-containing protein 2 Homo sapiens (Human) PR
Q5U464 Asap3 Arf-GAP with SH3 domain, ANK repeat and PH domain-containing protein 3 Mus musculus (Mouse) SS
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
Q6ZQK5 Acap2 Arf-GAP with coiled-coil, ANK repeat and PH domain-containing protein 2 Mus musculus (Mouse) PR
Q1AAU6 Asap1 Arf-GAP with SH3 domain, ANK repeat and PH domain-containing protein 1 Rattus norvegicus (Rat) 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
MTVKLDFEEC LKDSPRFRAS IELVETEVSE LETRLEKLLK LGSCLLESGQ HYLAAGRAFV
70 80 90 100 110 120
VGICDLARLG PPEPMMAECL EKFTVSLNHK LDSHAELLDA TQHTLQQQIQ TLVKEGLRGF
130 140 150 160 170 180
REARRDFWRG AENLEAALTH NAEVPRRRVQ EAEEAGTALR TARAGYRSRA LDYALQVNVI
190 200 210 220 230 240
EDKRKFDIME FVLRLVEAQA TYFQQGHEEL NRLAQYRKEL GTQLHNLVLN SARQKRDMEQ
250 260 270 280 290 300
RHVLLKQKEL GGEEPEPSLK EGPSGLVMEG HLFKRASNAF KTWSRRWFTI QNNQLVYQKK
310 320 330 340 350 360
YKDPVTVVVD DLRLCTVKLC PDSERRFCFE VVSTSKSCFL QADSERLLQL WVSAVQSSIA
370 380 390 400 410 420
SAFSQAHLEN SPRGPGQVSG YHAPGSAATL ACGGAARGRE SGGVGQVAAQ VQSVDGNAQC
430 440 450 460 470 480
CDCREPAPEW ASINLGVTLC IQCSGIHRSL GVHFSKVRSL TLDSWEPELV KLMCELGNVI
490 500 510 520 530 540
INQIYEARVE AMAVKKPGPS CSRQEKEAWI HAKYVEKKFL TKLPEIRGRR GGRGPPRGHP
550 560 570 580 590 600
PVPPKPPIRP HSGIVRSKSE CPSDDMGSLH PGALLFQAAG HPPSLPTMAD ALAHGADVNW
610 620 630 640 650 660
VNVGQGNATP LIRATAANSL LACEFLLQNG ANVNQADSAG RGPLHHATIL GHTGLACLFL
670 680 690 700 710 720
KRGADLGARD TEGRDPLTIA METTNADIVT LLRLAKMREA EAAQGQAGDE TYLDIFRDFS
730
LMASDDPEKL SRRSHDLHTL