Overview
| Uniprot ID | D4ABN3 |
| Protein Name | Synaptojanin-1 |
| Gene Name | Synj1 |
| Organism | Rattus norvegicus |
Kla Sites from experimental identification
| Position |
Flanking peptide |
| 1140 |
RSPAPARKEFGGVGA |
| 1226 |
LTPESQSKPLETSKG |
| 169 |
QSLHLHLKHYGVNCD |
| 346 |
VKGGKAEKLHSVLKP |
| 449 |
GTGALEGKAKAGKLK |
| 518 |
TLQSASSKVLKNMCE |
| 580 |
GIQEFQDKRSKPTDI |
Function
Phosphatase that acts on various phosphoinositides, including phosphatidylinositol 4-phosphate, phosphatidylinositol (4,5)-bisphosphate and phosphatidylinositol (3,4,5)-trisphosphate. Has a role in clathrin-mediated endocytosis. Hydrolyzes PIP2 bound to actin regulatory proteins resulting in the rearrangement of actin filaments downstream of tyrosine kinase and ASH/GRB2
Protein Sequence
10
MAFSKGFRIY
20
HKLDPPPFSL
30
IVETRHKEEC
40
LMFESGAVAV
50
LSSAEKEAIK
60
GTYAKVLDAY
70
GLLGVLRLNL
80
GDTMLHYLVL
90
VTGCMSVGKI
100
QESEVFRVTS
110
TEFISLRVDA
120
SDEDRISEVR
130
KVLNSGNFYF
140
AWSASGVSLD
150
LSLNAHRSMQ
160
EHTTDNRFFW
170
NQSLHLHLKH
180
YGVNCDDWLL
190
RLMCGGVEIR
200
TIYAAHKQAK
210
ACLISRLSCE
220
RAGTRFNVRG
230
TNDDGHVANF
240
VETEQVIYLD
250
DCVSSFIQIR
260
GSVPLFWEQP
270
GLQVGSHRVR
280
MSRGFEANAP
290
AFDRHFRTLK
300
DLYGKQIVVN
310
LLGSKEGEHM
320
LSKAFQSHLK
330
ASEHASDIHM
340
VSFDYHQMVK
350
GGKAEKLHSV
360
LKPQVQKFLD
370
YGFFYFDGSA
380
VQRCQSGTVR
390
TNCLDCLDRT
400
NSVQAFLGLE
410
MLAKQLEALG
420
LAEKPQLVTR
430
FQEVFRSMWS
440
VNGDSISKIY
450
AGTGALEGKA
460
KAGKLKDGAR
470
SVTRTIQNNF
480
FDSSKQEAID
490
VLLLGNTLNS
500
DLADKARALL
510
TTGSLRVSEQ
520
TLQSASSKVL
530
KNMCENFYKY
540
SKPKKIRVCV
550
GTWNVNGGKQ
560
FRSIAFKNQT
570
LTDWLLDAPK
580
LAGIQEFQDK
590
RSKPTDIFAI
600
GFEEMVELNA
610
GNIVNASTTN
620
QKLWAVELQK
630
TISRDNKYVL
640
LASEQLVGVC
650
LFVFIRPQHA
660
PFIRDVAVDT
670
VKTGMGGATG
680
NKGAVAIRML
690
FHTTSLCFVC
700
SHFAAGQSQV
710
KERNEDFVEI
720
ARKLSFPMGR
730
MLFSHDYVFW
740
CGDFNYRIDL
750
PNEEVKELIR
760
QQNWDSLIAG
770
DQLINQKNAG
780
QIFRGFLEGK
790
VTFAPTYKYD
800
LFSEDYDTSE
810
KCRTPAWTDR
820
VLWRRRKWPF
830
DRSAEDLDLL
840
NASFQDESKI
850
LYTWTPGTLL
860
HYGRAELKTS
870
DHRPVVALID
880
IDIFEVEAEE
890
RQKIYKEVIA
900
VQGPPDGTVL
910
VSIKSSAQEN
920
TFFDDALIDE
930
LLQQFAHFGE
940
VILIRFVEDK
950
MWVTFLEGSS
960
ALNVLSLNGK
970
ELLNRTITIT
980
LKSPDWIKTL
990
EEEMSLEKIS
1000
VTLPSSTSST
1010
LLGEDAEVSA
1020
DFDMEGDVDD
1030
YSAEVEELLP
1040
QHLQPSSSSG
1050
LGTSPSSSPR
1060
TSPCQSPTAP
1070
EYSAPSLPIR
1080
PSRAPSRTPG
1090
PLSSQGAPVD
1100
TQPAAQKESS
1110
QTIEPKRPPP
1120
PRPVAPPARP
1130
APPQRPPPPS
1140
GARSPAPARK
1150
EFGGVGAPPS
1160
PGVTRREMEA
1170
PKSPGTARKD
1180
NIGRNQPSPQ
1190
AGLAGPGPSG
1200
YGAARPTIPA
1210
RAGVISAPQS
1220
QARVSAGRLT
1230
PESQSKPLET
1240
SKGPAVLPEP
1250
LKPQAAFPPQ
1260
PSLPTPAQKL
1270
QDPLVPIAAP
1280
MPPSIPQSNL
1290
ETPPLPPPRS
1300
RSSQSLPSDS
1310
SPQLQQEQPT
G
Gene Ontology
| Classification |
GO ID |
Description |
| Cellular Component |
GO:0030118 |
clathrin coat |
| Cellular Component |
GO:0048471 |
perinuclear region of cytoplasm |
| Molecular Function |
GO:0052745 |
inositol phosphate phosphatase activity |
| Molecular Function |
GO:0004439 |
phosphatidylinositol-4,5-bisphosphate 5-phosphatase activity |
| Molecular Function |
GO:0003723 |
RNA binding |
| Biological Process |
GO:0006897 |
endocytosis |
| Biological Process |
GO:0046856 |
phosphatidylinositol dephosphorylation |
| Biological Process |
GO:0048259 |
regulation of receptor-mediated endocytosis |
Reference
[1] Yao Y, Bade R, Li G, Zhang A, Zhao H et al.. Global-Scale Profiling of Differential Expressed Lysine-Lactylated Proteins in the Cerebral Endothelium of Cerebral Ischemia-Reperfusion Injury Rats.. Cell Mol Neurobiol 43(5):1989-2004. 2023 Jul. PMID: 36030297.
[2] 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.