Overview
| Uniprot ID | A0A8I6A3Q6 |
| Protein Name | Active breakpoint cluster region-related protein |
| Gene Name | Abr |
| Organism | Rattus norvegicus |
Kla Sites from experimental identification
| Position |
Flanking peptide |
| 907 |
YDKTKVNKDNNEIVD |
Function
Protein with a unique structure having two opposing regulatory activities toward small GTP-binding proteins. The C-terminus is a GTPase-activating protein domain which stimulates GTP hydrolysis by RAC1, RAC2 and CDC42. Accelerates the intrinsic rate of GTP hydrolysis of RAC1 or CDC42, leading to down-regulation of the active GTP-bound form. The central Dbl homology (DH) domain functions as guanine nucleotide exchange factor (GEF) that modulates the GTPases CDC42, RHOA and RAC1. Promotes the conversion of CDC42, RHOA and RAC1 from the GDP-bound to the GTP-bound form. Functions as an important negative regulator of neuronal RAC1 activity. Regulates macrophage functions such as CSF-1 directed motility and phagocytosis through the modulation of RAC1 activity
Protein Sequence
10
MWDPQEFERH
20
WQAEFPGEEA
30
PVMKLESVPD
40
MERELERCKL
50
NLKRLQQVLA
60
EEKFKVWYLQ
70
AALAGERMDL
80
PRGPPEGGDG
90
GGCGSGTGSR
100
GASVEEQEPA
110
GAVCAPPPHN
120
KEGASSRDSD
130
SPGPTLLDSE
140
VATSAEPSPF
150
MCLDLPAWPG
160
AVEGGGAVRS
170
LTAAIHQQLV
180
QPRLLFRLRE
190
DCVPPAPDGT
200
GSPIPGDQRS
210
SETRAGRGSE
220
EGEPDASGGD
230
DGGDCSDHDF
240
EIVDLNEKFV
250
LGHLLMAPCR
260
FGTRDEAEKP
270
ARPCSPHRWM
280
HLISGGWRHH
290
RRRSRDLEQL
300
EAEDESPRRG
310
AREHLAQWGR
320
KRFLRVPDRD
330
SPSHSSPERG
340
SDCSHNSSDH
350
EDGFSADFSY
360
GAEDYDAEGH
370
EEQKGPPEGS
380
ETMPYIDESP
390
TMSPQLSARS
400
QGGGESISPT
410
PPEGLAPGVE
420
AGKGLEMRKL
430
VLSGFLASEE
440
IYINQLEALL
450
LPMKPLKATA
460
TTSQPVLTIQ
470
QIETIFYKIQ
480
DIYEIHKEFY
490
DNLCPKVQQW
500
DSQVTMGHLF
510
QKLASQLGVY
520
KAFVDNYKVA
530
LETAEKCSQS
540
NNQFQKISEE
550
LKVKGPKDSK
560
DSHTSVTMEA
570
LLYKPIDRVT
580
RSTLVLHDLL
590
KHTPVDHPDY
600
PLLQDALRIS
610
QNFLSSINED
620
IDPRRTAVTT
630
PKGETRQLVK
640
DGFLVEMSES
650
SRKLRHVFLF
660
TDVLLCAKLK
670
KTSAGKHQQY
680
DCKWYIPLAD
690
LVFPSPEESE
700
ASPQVHPFPD
710
HELEDMKVKI
720
SALKSEIQKE
730
KANKGQSRAI
740
ERLKKKMFEN
750
EFLLLLNSPT
760
IPFRIHNRNG
770
KSYLFLLSSD
780
YERSEWREAI
790
QKLQKKDLQA
800
FVLSSVELQV
810
LTGSCFKLRT
820
VHNIPVTSNK
830
DDDESPGLYG
840
FLHVIVHSAK
850
GFKQSANLYC
860
TLEVDSFGYF
870
VSKAKTRVFR
880
DTTEPKWDEE
890
FEIELEGSQS
900
LRILCYEKCY
910
DKTKVNKDNN
920
EIVDKIMGKG
930
QIQLDPQTVE
940
SKNWHTDVIE
950
MNGIKVEFSM
960
KFTSRDMSLK
970
RTPSKKQTGV
980
FGVKISVVTK
990
RERSKVPYIV
1000
RQCIEEVEKR
1010
GIEEVGIYRI
1020
SGVATDIQAL
1030
KAVFDANNKD
1040
ILLMLSDMDI
1050
NAIAGTLKLY
1060
FRELPEPLLT
1070
DRLYPAFMEG
1080
IALSDPAAKE
1090
NCMMHLLRSL
1100
PDPNLITFLF
1110
LLEHLKRVAE
1120
KEPINKMSLH
1130
NLATVFGPTL
1140
LRPSEVESKA
1150
HLTSAADIWS
1160
HDVMAQVQVL
1170
LYYLQHPPIS
1180
FAELKRNTLY
FSTDV
Gene Ontology
| Classification |
GO ID |
Description |
| Cellular Component |
GO:0030424 |
axon |
| Cellular Component |
GO:0043197 |
dendritic spine |
| Cellular Component |
GO:0098978 |
glutamatergic synapse |
| Cellular Component |
GO:0099092 |
postsynaptic density, intracellular component |
| Molecular Function |
GO:0005096 |
GTPase activator activity |
| Molecular Function |
GO:0005085 |
guanyl-nucleotide exchange factor activity |
| Molecular Function |
GO:0004674 |
protein serine/threonine kinase activity |
| Biological Process |
GO:0035556 |
intracellular signal transduction |
Reference
[1] Chen Y, Sun W, Sun Z, Zhao H, Wu T et al.. Effect of electroacupuncture on hippocampal protein lactylation in a rat model of vascular dementia.. Front Neurol 16:1629474. 2025. PMID: 40963935.