Overview
| Uniprot ID | Q9Y620 |
| Protein Name | DNA repair and recombination protein RAD54B |
| Gene Name | RAD54B |
| Organism | Homo sapiens |
Kla Sites from experimental identification
| Position |
Flanking peptide |
| 16 |
QLQGNSFKKPKFIPP |
| 17 |
LQGNSFKKPKFIPPG |
| 233 |
KCFSNPFKSVCKPSS |
| 454 |
LISLSCEKRIILTGT |
Function
Multifunctional ATPase that could play with RAD54, a redundant role in homologous recombination (HR), a major pathway for repairing DNA double-strand breaks (DSBs), single-stranded DNA (ssDNA) gaps, and stalled or collapsed replication forks (PubMed:11884632, PubMed:16428451). Could act as a molecular motor during the homology search and guide RAD51 ssDNA along a donor dsDNA thereby changing the homology search from the diffusion-based mechanism to a motor-guided mechanism (PubMed:11782437, PubMed:11884632, PubMed:16428451). Once DNA strand exchange occured, could dissociate RAD51 from nucleoprotein filaments formed on dsDNA (By similarity). May also function as a molecular adapter, promoting MDM2-MDM4 heterodimerization to facilitate the ubiquitin-dependent degradation of p53, thereby modulating the cellular decision between cell cycle arrest and progression in response to DNA damage (PubMed:25384516)
Protein Sequence
10
MRRSAAPSQL
20
QGNSFKKPKF
30
IPPGRSNPGL
40
NEEITKLNPD
50
IKLFEGVAIN
60
NTFLPSQNDL
70
RICSLNLPSE
80
ESTREINNRD
90
NCSGKYCFEA
100
PTLATLDPPH
110
TVHSAPKEVA
120
VSKEQEEKSD
130
SLVKYFSVVW
140
CKPSKKKHKK
150
WEGDAVLIVK
160
GKSFILKNLE
170
GKDIGRGIGY
180
KFKELEKIEE
190
GQTLMICGKE
200
IEVMGVISPD
210
DFSSGRCFQL
220
GGGSTAISHS
230
SQVARKCFSN
240
PFKSVCKPSS
250
KENRQNDFQN
260
CKPRHDPYTP
270
NSLVMPRPDK
280
NHQWVFNKNC
290
FPLVDVVIDP
300
YLVYHLRPHQ
310
KEGIIFLYEC
320
VMGMRMNGRC
330
GAILADEMGL
340
GKTLQCISLI
350
WTLQCQGPYG
360
GKPVIKKTLI
370
VTPGSLVNNW
380
KKEFQKWLGS
390
ERIKIFTVDQ
400
DHKVEEFIKS
410
IFYSVLIISY
420
EMLLRSLDQI
430
KNIKFDLLIC
440
DEGHRLKNSA
450
IKTTTALISL
460
SCEKRIILTG
470
TPIQNDLQEF
480
FALIDFVNPG
490
ILGSLSSYRK
500
IYEEPIILSR
510
EPSASEEEKE
520
LGERRAAELT
530
CLTGLFILRR
540
TQEIINKYLP
550
PKIENVVFCR
560
PGALQIELYR
570
KLLNSQVVRF
580
CLQGLLENSP
590
HLICIGALKK
600
LCNHPCLLFN
610
SIKEKECSST
620
CDKNEEKSLY
630
KGLLSVFPAD
640
YNPLLFTEKE
650
SGKLQVLSKL
660
LAVIHELRPT
670
EKVVLVSNYT
680
QTLNILQEVC
690
KRHGYAYTRL
700
DGQTPISQRQ
710
QIVDGFNSQH
720
SSFFIFLLSS
730
KAGGVGLNLI
740
GGSHLILYDI
750
DWNPATDIQA
760
MSRVWRDGQK
770
YPVHIYRLLT
780
TGTIEEKIYQ
790
RQISKQGLCG
800
AVVDLTKTSE
810
HIQFSVEELK
820
NLFTLHESSD
830
CVTHDLLDCE
840
CTGEEVHTGD
850
SLEKFIVSRD
860
CQLGPHHQKS
870
NSLKPLSMSQ
880
LKQWKHFSGD
890
HLNLTDPFLE
900
RITENVSFIF
910
QNITTQATGT
Gene Ontology
| Classification |
GO ID |
Description |
| Cellular Component |
GO:0005654 |
nucleoplasm |
| Cellular Component |
GO:0005634 |
nucleus |
| Cellular Component |
GO:0035861 |
site of double-strand break |
| Molecular Function |
GO:0005524 |
ATP binding |
| Molecular Function |
GO:0016887 |
ATP hydrolysis activity |
| Molecular Function |
GO:0008094 |
ATP-dependent activity, acting on DNA |
| Molecular Function |
GO:0003677 |
DNA binding |
| Molecular Function |
GO:0015616 |
DNA translocase activity |
| Molecular Function |
GO:0030674 |
protein-macromolecule adaptor activity |
| Biological Process |
GO:0000724 |
double-strand break repair via homologous recombination |
| Biological Process |
GO:0035825 |
homologous recombination |
| Biological Process |
GO:1901797 |
negative regulation of signal transduction by p53 class mediator |
| Biological Process |
GO:0007131 |
reciprocal meiotic recombination |
Reference
[1] Wu Q, Li Z, Gong T, Zheng X, Zhou X et al.. Porphyromonas gingivalis infection induces lysine lactylation reprogramming in human umbilical vein endothelial cells.. Front Cell Infect Microbiol 16:1706727. 2026. PMID: 41696360.