Overview
| Uniprot ID | Q8NHM5 |
| Protein Name | Lysine-specific demethylase 2B |
| Gene Name | KDM2B |
| Organism | Homo sapiens |
Kla Sites from experimental identification
| Position |
Flanking peptide |
| 596 |
LGPASAVKLAANRTT |
| 805 |
VHLRKKRKYEKPQEL |
| 884 |
DRMALANKPLRRFKQ |
Function
Histone demethylase that demethylates 'Lys-4' and 'Lys-36' of histone H3, thereby playing a central role in histone code (PubMed:16362057, PubMed:17994099, PubMed:26237645). Preferentially demethylates trimethylated H3 'Lys-4' and dimethylated H3 'Lys-36' residue while it has weak or no activity for mono- and tri-methylated H3 'Lys-36' (PubMed:16362057, PubMed:17994099, PubMed:26237645). Preferentially binds the transcribed region of ribosomal RNA and represses the transcription of ribosomal RNA genes which inhibits cell growth and proliferation (PubMed:16362057, PubMed:17994099). May also serve as a substrate-recognition component of the SCF (SKP1-CUL1-F-box protein)-type E3 ubiquitin ligase complex (Probable)
Protein Sequence
10
MAGPQMGGSA
20
EDHPPRKRHA
30
AEKQKKKTVI
40
YTKCFEFESA
50
TQRPIDRQRY
60
DENEDLSDVE
70
EIVSVRGFSL
80
EEKLRSQLYQ
90
GDFVHAMEGK
100
DFNYEYVQRE
110
ALRVPLIFRE
120
KDGLGIKMPD
130
PDFTVRDVKL
140
LVGSRRLVDV
150
MDVNTQKGTE
160
MSMSQFVRYY
170
ETPEAQRDKL
180
YNVISLEFSH
190
TKLEHLVKRP
200
TVVDLVDWVD
210
NMWPQHLKEK
220
QTEATNAIAE
230
MKYPKVKKYC
240
LMSVKGCFTD
250
FHIDFGGTSV
260
WYHVFRGGKI
270
FWLIPPTLHN
280
LALYEEWVLS
290
GKQSDIFLGD
300
RVERCQRIEL
310
KQGYTFFIPS
320
GWIHAVYTPV
330
DSLVFGGNIL
340
HSFNVPMQLR
350
IYEIEDRTRV
360
QPKFRYPFYY
370
EMCWYVLERY
380
VYCVTQRSHL
390
TQEYQRESML
400
IDAPRKPSID
410
GFSSDSWLEM
420
EEEACDQQPQ
430
EEEEKDEEGE
440
GRDRAPKPPT
450
DGSTSPTSTP
460
SEDQEALGKK
470
PKAPALRFLK
480
RTLSNESEES
490
VKSTTLAVDY
500
PKTPTGSPAT
510
EVSAKWTHLT
520
EFELKGLKAL
530
VEKLESLPEN
540
KKCVPEGIED
550
PQALLEGVKN
560
VLKEHADDDP
570
SLAITGVPVV
580
TWPKKTPKNR
590
AVGRPKGKLG
600
PASAVKLAAN
610
RTTAGARRRR
620
TRCRKCEACL
630
RTECGECHFC
640
KDMKKFGGPG
650
RMKQSCIMRQ
660
CIAPVLPHTA
670
VCLVCGEAGK
680
EDTVEEEEGK
690
FNLMLMECSI
700
CNEIIHPGCL
710
KIKESEGVVN
720
DELPNCWECP
730
KCNHAGKTGK
740
QKRGPGFKYA
750
SNLPGSLLKE
760
QKMNRDNKEG
770
QEPAKRRSEC
780
EEAPRRRSDE
790
HSKKVPPDGL
800
LRRKSDDVHL
810
RKKRKYEKPQ
820
ELSGRKRASS
830
LQTSPGSSSH
840
LSPRPPLGSS
850
LSPWWRSSLT
860
YFQQQLKPGK
870
EDKLFRKKRR
880
SWKNAEDRMA
890
LANKPLRRFK
900
QEPEDELPEA
910
PPKTRESDHS
920
RSSSPTAGPS
930
TEGAEGPEEK
940
KKVKMRRKRR
950
LPNKELSREL
960
SKELNHEIQR
970
TENSLANENQ
980
QPIKSEPESE
990
GEEPKRPPGI
1000
CERPHRFSKG
1010
LNGTPRELRH
1020
QLGPSLRSPP
1030
RVISRPPPSV
1040
SPPKCIQMER
1050
HVIRPPPISP
1060
PPDSLPLDDG
1070
AAHVMHREVW
1080
MAVFSYLSHQ
1090
DLCVCMRVCR
1100
TWNRWCCDKR
1110
LWTRIDLNHC
1120
KSITPLMLSG
1130
IIRRQPVSLD
1140
LSWTNISKKQ
1150
LSWLINRLPG
1160
LRDLVLSGCS
1170
WIAVSALCSS
1180
SCPLLRTLDV
1190
QWVEGLKDAQ
1200
MRDLLSPPTD
1210
NRPGQMDNRS
1220
KLRNIVELRL
1230
AGLDITDASL
1240
RLIIRHMPLL
1250
SKLHLSYCNH
1260
VTDQSINLLT
1270
AVGTTTRDSL
1280
TEINLSDCNK
1290
VTDQCLSFFK
1300
RCGNICHIDL
1310
RYCKQVTKEG
1320
CEQFIAEMSV
1330
SVQFGQVEEK
LLQKLS
Gene Ontology
| Classification |
GO ID |
Description |
| Cellular Component |
GO:0000785 |
chromatin |
| Cellular Component |
GO:0005730 |
nucleolus |
| Cellular Component |
GO:0005654 |
nucleoplasm |
| Cellular Component |
GO:0005634 |
nucleus |
| Cellular Component |
GO:0031519 |
PcG protein complex |
| Molecular Function |
GO:0003677 |
DNA binding |
| Molecular Function |
GO:0032452 |
histone demethylase activity |
| Molecular Function |
GO:0051864 |
histone H3K36 demethylase activity |
| Molecular Function |
GO:0140680 |
histone H3K36me/H3K36me2 demethylase activity |
| Molecular Function |
GO:0000978 |
RNA polymerase II cis-regulatory region sequence-specific DNA binding |
| Molecular Function |
GO:0019843 |
rRNA binding |
| Molecular Function |
GO:0003712 |
transcription coregulator activity |
| Molecular Function |
GO:0045322 |
unmethylated CpG binding |
| Molecular Function |
GO:0008270 |
zinc ion binding |
| Biological Process |
GO:0006338 |
chromatin remodeling |
| Biological Process |
GO:0006351 |
DNA-templated transcription |
| Biological Process |
GO:0048596 |
embryonic camera-type eye morphogenesis |
| Biological Process |
GO:0030900 |
forebrain development |
| Biological Process |
GO:0021592 |
fourth ventricle development |
| Biological Process |
GO:0031507 |
heterochromatin formation |
| Biological Process |
GO:0030902 |
hindbrain development |
| Biological Process |
GO:0021993 |
initiation of neural tube closure |
| Biological Process |
GO:0021670 |
lateral ventricle development |
| Biological Process |
GO:0030901 |
midbrain development |
| Biological Process |
GO:0021555 |
midbrain-hindbrain boundary morphogenesis |
| Biological Process |
GO:0045892 |
negative regulation of DNA-templated transcription |
| Biological Process |
GO:2000178 |
negative regulation of neural precursor cell proliferation |
| Biological Process |
GO:0043524 |
negative regulation of neuron apoptotic process |
| Biological Process |
GO:0000122 |
negative regulation of transcription by RNA polymerase II |
| Biological Process |
GO:0006357 |
regulation of transcription by RNA polymerase II |
| Biological Process |
GO:0031146 |
SCF-dependent proteasomal ubiquitin-dependent protein catabolic process |
| Biological Process |
GO:0007283 |
spermatogenesis |
| Biological Process |
GO:0021678 |
third ventricle development |
Reference
[1] He J, Lai T, Zhou Z, Yang H, Lei Z et al.. Multiomics profiling reveals the involvement of protein lactylation in nonhomologous end joining pathway conferring radioresistance in lung adenocarcinoma cell.. Sci Rep 15(1):24651. 2025 Jul 9. PMID: 40634431.