Overview
| Uniprot ID | O75113 |
| Protein Name | NEDD4-binding protein 1 |
| Gene Name | N4BP1 |
| Organism | Homo sapiens |
Kla Sites from experimental identification
| Position |
Flanking peptide |
| 412 |
ETNKTKNKGVYSSTN |
Function
Potent suppressor of cytokine production that acts as a regulator of innate immune signaling and inflammation. Acts as a key negative regulator of select cytokine and chemokine responses elicited by TRIF-independent Toll-like receptors (TLRs), thereby limiting inflammatory cytokine responses to minor insults. In response to more threatening pathogens, cleaved by CASP8 downstream of TLR3 or TLR4, leading to its inactivation, thereby allowing production of inflammatory cytokines (By similarity). Acts as a restriction factor against some viruses, such as HIV-1: restricts HIV-1 replication by binding to HIV-1 mRNAs and mediating their degradation via its ribonuclease activity (PubMed:31133753). Also acts as an inhibitor of the E3 ubiquitin-protein ligase ITCH: acts by interacting with the second WW domain of ITCH, leading to compete with ITCH's substrates and impairing ubiquitination of substrates (By similarity)
Protein Sequence
10
MAARAVLDEF
20
TAPAEKAELL
30
EQSRGRIEGL
40
FGVSLAVLGA
50
LGAEEPLPAR
60
IWLQLCGAQE
70
AVHSAKEYIK
80
GICEPELEER
90
ECYPKDMHCI
100
FVGAESLFLK
110
SLIQDTCADL
120
CILDIGLLGI
130
RGSAEAVVMA
140
RSHIQQFVKL
150
FENKENLPSS
160
QKESEVKREF
170
KQFVEAHADN
180
YTMDLLILPT
190
SLKKELLTLT
200
QGEENLFETG
210
DDEVIEMRDS
220
QQTEFTQNAA
230
TGLNISRDET
240
VLQEEARNKA
250
GTPVSELTKQ
260
MDTVLSSSPD
270
VLFDPINGLT
280
PDEEALSNER
290
ICQKRRFSDS
300
EERHTKKQFS
310
LENVQEGEIL
320
HDAKTLAGNV
330
IADLSDSSAD
340
SENLSPDIKE
350
TTEEMEYNIL
360
VNFFKTMGYS
370
QEIVEKVIKV
380
YGPSTEPLLL
390
LEEIEKENKR
400
FQEDREFSAG
410
TVYPETNKTK
420
NKGVYSSTNE
430
LTTDSTPKKT
440
QAHTQQNMVE
450
KFSQLPFKVE
460
AKPCTSNCRI
470
NTFRTVPIEQ
480
KHEVWGSNQN
490
YICNTDPETD
500
GLSPSVASPS
510
PKEVNFVSRG
520
ASSHQPRVPL
530
FPENGLHQQP
540
EPLLPNNMKS
550
ACEKRLGCCS
560
SPHSKPNCST
570
LSPPMPLPQL
580
LPSVTDARSA
590
GPSDHIDSSV
600
TGVQRFRDTL
610
KIPYKLELKN
620
EPGRTDLKHI
630
VIDGSNVAIT
640
HGLKKFFSCR
650
GIAIAVEYFW
660
KLGNRNITVF
670
VPQWRTRRDP
680
NVTEQHFLTQ
690
LQELGILSLT
700
PARMVFGERI
710
ASHDDRFLLH
720
LADKTGGIIV
730
TNDNFREFVN
740
ESVSWREIIT
750
KRLLQYTFVG
760
DIFMVPDDPL
770
GRSGPRLEEF
780
LQKEVCLRDM
790
QPLLSALPNV
800
GMFDPSFRVP
810
GTQAASTSHQ
820
PPTRIQGAPS
830
SHWLPQQPHF
840
PLLPALPSLQ
850
QNLPMPAQRS
860
SAETNELREA
870
LLKIFPDSEQ
880
RLKIDQILVA
890
HPYMKDLNAL
SAMVLD
Gene Ontology
| Classification |
GO ID |
Description |
| Cellular Component |
GO:0005829 |
cytosol |
| Cellular Component |
GO:0005730 |
nucleolus |
| Cellular Component |
GO:0005634 |
nucleus |
| Cellular Component |
GO:0016605 |
PML body |
| Molecular Function |
GO:0016787 |
hydrolase activity |
| Molecular Function |
GO:0003729 |
mRNA binding |
| Molecular Function |
GO:0004540 |
RNA nuclease activity |
| Molecular Function |
GO:0043130 |
ubiquitin binding |
| Biological Process |
GO:0034644 |
cellular response to UV |
| Biological Process |
GO:0045087 |
innate immune response |
| Biological Process |
GO:0001818 |
negative regulation of cytokine production |
| Biological Process |
GO:0032435 |
negative regulation of proteasomal ubiquitin-dependent protein catabolic process |
| Biological Process |
GO:0031397 |
negative regulation of protein ubiquitination |
| Biological Process |
GO:0045071 |
negative regulation of viral genome replication |
| Biological Process |
GO:0045088 |
regulation of innate immune response |
Reference
PMID: N/A