Reviewed,
UniProtKB/Swiss-Prot Q8NHM5 (KDM2B_HUMAN)
Last modified
January 19, 2010.
Version 75.
History...
Clusters with 100%,
90%,
50% identity |
Documents (3) |
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Names and origin
| Protein names | Recommended name: Lysine-specific demethylase 2B EC=1.14.11.27 Alternative name(s): JmjC domain-containing histone demethylation protein 1B [Histone-H3]-lysine-36 demethylase 1B F-box and leucine-rich repeat protein 10 F-box/LRR-repeat protein 10 F-box protein FBL10 Jumonji domain-containing EMSY-interactor methyltransferase motif protein Short name=Protein JEMMA CXXC-type zinc finger protein 2 Protein-containing CXXC domain 2 | ||||
| Gene names |
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| Organism | Homo sapiens (Human) [Complete proteome] | ||||
| Taxonomic identifier | 9606 [NCBI] | ||||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Hominidae › Homo |
Protein attributes
| Sequence length | 1336 AA. |
| Sequence status | Complete. |
| Protein existence | Evidence at protein level. |
General annotation (Comments)
| Function | Histone demethylase that demethylates 'Lys-4' and 'Lys-36' of histone H3, thereby playing a central role in histone code. 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'. Preferentially binds the transcribed region of ribosomal RNA and represses the transcription of ribosomal RNA genes which inhibits cell growth and proliferation. May also serve as a substrate-recognition component of the SCF (SKP1-CUL1-F-box protein)-type E3 ubiquitin ligase complex. Ref.7 Ref.8 |
| Catalytic activity | Protein N6,N(6)-dimethyl-L-lysine + 2-oxoglutarate + O2 = protein N(6)-methyl-L-lysine + succinate + formaldehyde + CO2. Ref.7 Protein N(6)-methyl-L-lysine + 2-oxoglutarate + O2 = protein L-lysine + succinate + formaldehyde + CO2. Ref.7 |
| Cofactor | Binds 1 Fe2+ ion per subunit By similarity. |
| Subunit structure | Directly interacts with SKP1A and CUL1 By similarity. |
| Subcellular location | |
| Domain | The JmjC domain mediates demethylation activity By similarity. It is also required for repression of ribosomal RNA genes. |
| Sequence similarities | Belongs to the JHDM1 histone demethylase family. Contains 1 CXXC-type zinc finger. Contains 1 F-box domain. Contains 1 JmjC domain. Contains 4 LRR (leucine-rich) repeats. Contains 1 PHD-type zinc finger. |
Ontologies
Alternative products
| This entry describes 3 isoforms produced by alternative splicing. [Align] [Select] | ||||||
| Isoform 1 (identifier: Q8NHM5-1) This isoform has been chosen as the 'canonical' sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry. | ||||||
| Isoform 2 (identifier: Q8NHM5-2) The sequence of this isoform differs from the canonical sequence as follows: 730-730: K → KAYK 1277-1336: DCNKVTDQCL...VEEKLLQKLS → ASLLGRVFGLQFWGICEPQARKNAGWA | ||||||
| Isoform 3 (identifier: Q8NHM5-3) The sequence of this isoform differs from the canonical sequence as follows: 856-868: LKPGKEDKLFRKK → Q 1204-1204: G → GPG | ||||||
| Note: No experimental confirmation available. |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 1336 | 1336 | Lysine-specific demethylase 2B | PRO_0000119853 | |||||
Regions | |||||||||
| Domain | 178 – 346 | 169 | JmjC | ||||||
| Domain | 1059 – 1105 | 47 | F-box | ||||||
| Repeat | 1148 – 1171 | 24 | LRR 1 | ||||||
| Repeat | 1217 – 1242 | 26 | LRR 2 | ||||||
| Repeat | 1269 – 1293 | 25 | LRR 3 | ||||||
| Repeat | 1294 – 1336 | 43 | LRR 4 | ||||||
| Zinc finger | 606 – 652 | 47 | CXXC-type | ||||||
| Zinc finger | 659 – 725 | 67 | PHD-type | ||||||
| Coiled coil | 943 – 971 | 29 | Potential | ||||||
| Compositional bias | 409 – 430 | 22 | Glu-rich | ||||||
| Compositional bias | 1014 – 1056 | 43 | Pro-rich | ||||||
Sites | |||||||||
| Metal binding | 242 | 1 | Iron; catalytic By similarity | ||||||
| Metal binding | 244 | 1 | Iron; catalytic By similarity | ||||||
| Metal binding | 314 | 1 | Iron; catalytic By similarity | ||||||
| Binding site | 239 | 1 | Substrate By similarity | ||||||
| Binding site | 259 | 1 | Substrate By similarity | ||||||
Amino acid modifications | |||||||||
| Modified residue | 223 | 1 | Phosphotyrosine Ref.9 | ||||||
| Modified residue | 474 | 1 | Phosphoserine Ref.6 Ref.10 | ||||||
| Modified residue | 493 | 1 | Phosphothreonine Ref.10 | ||||||
| Modified residue | 497 | 1 | Phosphoserine Ref.6 | ||||||
| Modified residue | 975 | 1 | Phosphoserine Ref.10 | ||||||
| Modified residue | 979 | 1 | Phosphoserine Ref.10 | ||||||
Natural variations | |||||||||
| Alternative sequence | 730 | 1 | K → KAYK in isoform 2. | VSP_011340 | |||||
| Alternative sequence | 856 – 868 | 13 | LKPGK…LFRKK → Q in isoform 3. | VSP_017475 | |||||
| Alternative sequence | 1204 | 1 | G → GPG in isoform 3. | VSP_017476 | |||||
| Alternative sequence | 1277 – 1336 | 60 | DCNKV…LQKLS → ASLLGRVFGLQFWGICEPQA RKNAGWA in isoform 2. | VSP_011341 | |||||
Experimental info | |||||||||
| Sequence conflict | 864 | 1 | L → F in BAC11159. Ref.4 | ||||||
| Sequence conflict | 1226 | 1 | T → R in BAC11159. Ref.4 | ||||||
| Sequence conflict | 1295 | 1 | I → T in BAC11159. Ref.4 | ||||||
| Sequence conflict | 1334 | 1 | K → R in BAC11159. Ref.4 | ||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "JEMMA (Jumonji domain, EMSY-interactor, methyltransferase motif) is a novel protein which interacts with EMSY." Hughes-Davies L. Submitted (MAY-2002) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1). |
| [2] | "The full-ORF clone resource of the German cDNA consortium." Bechtel S., Rosenfelder H., Duda A., Schmidt C.P., Ernst U., Wellenreuther R., Mehrle A., Schuster C., Bahr A., Bloecker H., Heubner D., Hoerlein A., Michel G., Wedler H., Koehrer K., Ottenwaelder B., Poustka A., Wiemann S., Schupp I. BMC Genomics 8:399-399(2007) [PubMed: 17974005] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] OF 129-1336 (ISOFORM 3). Tissue: Testis. |
| [3] | Fujino T., Hasegawa M., Shibata S., Kishimoto T., Imai S., Takano T. Submitted (AUG-1999) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [MRNA] OF 480-1336 (ISOFORM 2). Tissue: Fibroblast. |
| [4] | "Complete sequencing and characterization of 21,243 full-length human cDNAs." Ota T., Suzuki Y., Nishikawa T., Otsuki T., Sugiyama T., Irie R., Wakamatsu A., Hayashi K., Sato H., Nagai K., Kimura K., Makita H., Sekine M., Obayashi M., Nishi T., Shibahara T., Tanaka T., Ishii S. Sugano S.Nat. Genet. 36:40-45(2004) [PubMed: 14702039] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] OF 504-1336 (ISOFORM 1). |
| [5] | "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)." The MGC Project Team Genome Res. 14:2121-2127(2004) [PubMed: 15489334] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] OF 710-1336 (ISOFORM 1). Tissue: Brain. |
| [6] | "Large-scale characterization of HeLa cell nuclear phosphoproteins." Beausoleil S.A., Jedrychowski M., Schwartz D., Elias J.E., Villen J., Li J., Cohn M.A., Cantley L.C., Gygi S.P. Proc. Natl. Acad. Sci. U.S.A. 101:12130-12135(2004) [PubMed: 15302935] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-474 AND SER-497, MASS SPECTROMETRY. Tissue: Epithelium. |
| [7] | "Histone demethylation by a family of JmjC domain-containing proteins." Tsukada Y., Fang J., Erdjument-Bromage H., Warren M.E., Borchers C.H., Tempst P., Zhang Y. Nature 439:811-816(2006) [PubMed: 16362057] [Abstract] Cited for: FUNCTION, ENZYME ACTIVITY. |
| [8] | "JHDM1B/FBXL10 is a nucleolar protein that represses transcription of ribosomal RNA genes." Frescas D., Guardavaccaro D., Bassermann F., Koyama-Nasu R., Pagano M. Nature 450:309-313(2007) [PubMed: 17994099] [Abstract] Cited for: FUNCTION, SUBCELLULAR LOCATION. |
| [9] | "Improved titanium dioxide enrichment of phosphopeptides from HeLa cells and high confident phosphopeptide identification by cross-validation of MS/MS and MS/MS/MS spectra." Yu L.-R., Zhu Z., Chan K.C., Issaq H.J., Dimitrov D.S., Veenstra T.D. J. Proteome Res. 6:4150-4162(2007) [PubMed: 17924679] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT TYR-223, MASS SPECTROMETRY. Tissue: Epithelium. |
| [10] | "Quantitative phosphoproteomic analysis of T cell receptor signaling reveals system-wide modulation of protein-protein interactions." Mayya V., Lundgren D.H., Hwang S.-I., Rezaul K., Wu L., Eng J.K., Rodionov V., Han D.K. Sci. Signal. 2:RA46-RA46(2009) [PubMed: 19690332] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-474; THR-493; SER-975 AND SER-979, MASS SPECTROMETRY. Tissue: T-cell. |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | AJ459424 mRNA. Translation: CAD30700.1. AL133572 mRNA. Translation: CAB63721.2. AB031230 mRNA. Translation: BAA97672.1. AK027440 mRNA. Translation: BAB55112.1. Different initiation. AK027692 mRNA. Translation: BAB55301.1. Different initiation. AK074718 mRNA. Translation: BAC11159.1. Different initiation. BC008735 mRNA. Translation: AAH08735.2. Different initiation. |
| IPI | IPI00185326. IPI00737594. IPI00747262. |
| PIR | T43477. |
| RefSeq | NP_115979.3. |
| UniGene | Hs.524800 |
3D structure databases | |
| SMR | Q8NHM5. Positions 66-573, 606-662, 1066-1314. |
| ModBase | Search... |
Protein-protein interaction databases | |
| STRING | Q8NHM5. |
PTM databases | |
| PhosphoSite | Q8NHM5. |
Proteomic databases | |
| PRIDE | Q8NHM5. |
Genome annotation databases | |
| Ensembl | ENST00000377071; ENSP00000366271; ENSG00000089094; Homo sapiens. [Genome view] |
| GeneID | 84678. |
| UCSC | uc001uat.1. human. |
Organism-specific databases | |
| CTD | 84678. |
| GeneCards | GC12M120329. |
| H-InvDB | HIX0020867. |
| HGNC | HGNC:13610. KDM2B. |
| MIM | 609078. gene. |
| PharmGKB | PA134907116. |
| GenAtlas | Search... |
Phylogenomic databases | |
| HOVERGEN | Q8NHM5. |
| InParanoid | Q8NHM5. |
| OMA | RKPSIDG. |
| OrthoDB | EOG9FFGM9. |
Enzyme and pathway databases | |
| BRENDA | 1.14.11.27. 247. |
Gene expression databases | |
| ArrayExpress | Q8NHM5. |
| Bgee | Q8NHM5. |
| CleanEx | HS_FBXL10. |
| Genevestigator | Q8NHM5. |
| GermOnline | ENSG00000089094. Homo sapiens. |
Family and domain databases | |
| InterPro | IPR001810. F-box. IPR013129. TF_JmjC. IPR003347. TF_JmjC_AAH. IPR002857. Znf_CXXC. IPR011011. Znf_FYVE_PHD. IPR001965. Znf_PHD. IPR019787. Znf_PHD-finger. [Graphical view] |
| Pfam | PF00646. F-box. 1 hit. PF02373. JmjC. 1 hit. PF02008. zf-CXXC. 1 hit. [Graphical view] |
| SMART | SM00256. FBOX. 1 hit. SM00558. JmjC. 1 hit. SM00249. PHD. 1 hit. [Graphical view] |
| PROSITE | PS50181. FBOX. False negative. PS51184. JMJC. 1 hit. PS51058. ZF_CXXC. 1 hit. PS01359. ZF_PHD_1. False negative. PS50016. ZF_PHD_2. 1 hit. [Graphical view] |
| ProtoNet | Search... |
Other Resources | |
| NextBio | 74711. |
| SOURCE | Search... |
Entry information
| Entry name | KDM2B_HUMAN | ||||||||
| Accession | Primary (citable) accession number: Q8NHM5 Secondary accession number(s): Q8NCI2 Q9UF75 | ||||||||
| Entry history |
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| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation project | HPI (Human Proteome Initiative) | ||||||||
| Disclaimer | Any medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care. | ||||||||
Relevant documents
| Human chromosome 12 Human chromosome 12: entries, gene names and cross-references to MIM |
| MIM cross-references Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot |
| SIMILARITY comments Index of protein domains and families |

Clusters with


