Q14493 (SLBP_HUMAN) Reviewed, UniProtKB/Swiss-Prot
Last modified
May 1, 2013.
Version 116.
History...
Names·Attributes·General annotation·Ontologies·Alt products·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Alt products·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: Histone RNA hairpin-binding protein Alternative name(s): Histone stem-loop-binding protein | ||||
| Gene names |
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| Organism | Homo sapiens (Human) [Reference 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 | 270 AA. |
| Sequence status | Complete. |
| Protein existence | Evidence at protein level |
General annotation (Comments)
| Function | RNA-binding protein involved in the histone pre-mRNA processing. Binds the stem-loop structure of replication-dependent histone pre-mRNAs and contributes to efficient 3'-end processing by stabilizing the complex between histone pre-mRNA and U7 small nuclear ribonucleoprotein (snRNP), via the histone downstream element (HDE). Plays an important role in targeting mature histone mRNA from the nucleus to the cytoplasm and to the translation machinery. Stabilizes mature histone mRNA and could be involved in cell-cycle regulation of histone gene expression. Involved in the mechanism by which growing oocytes accumulate histone proteins that support early embryogenesis. Binds to the 5' side of the stem-loop structure of histone pre-mRNAs. Ref.9 Ref.18 |
| Subunit structure | Monomer. SLBP/pre-mRNA complex interacts with ZNF473. Interacts with the Importin alpha/Importin beta receptor, LSM1, MIF4GD, TNPO3 and UPF1. Interaction with LSM1 occurs when histone mRNA is being rapidly degraded during the S phase. Found in a ternary complex with ERI1 and the stem-loop structure of the 3' end of histone mRNA. Associates with polyribosomes. Identified in a histone pre-mRNA complex, at least composed of ERI1, LSM11, SLBP, SNRPB, SYNCRIP and YBX1 By similarity. Binds in a cooperative manner with ERI1 to the mature 3'-end of histone mRNAs By similarity. Ref.8 Ref.10 Ref.11 Ref.13 Ref.14 Ref.15 |
| Subcellular location | Cytoplasm. Nucleus. Note: Polyribosome-associated. Localizes predominantly in the nucleus at the G1/G2 phases and the beginning of S phase. Through the S phase, partially redistributes to the cytoplasm. Binding to histone mRNA is necessary for cytoplasmic localization. Shuttles between the nucleus and the cytoplasm. Imported in the nucleus by the Importin alpha/Importin beta receptor. Ref.9 Ref.10 |
| Tissue specificity | Widely expressed. |
| Developmental stage | Regulated during the cell cycle: protein levels increase 10 to 20 fold in the late G1 and decrease at the S/G2 border. |
| Domain | Amino acids 31-34, 96-99 and 241-244 are necessary for interaction with the Importin alpha/Importin beta receptor. The first 18 amino acids, amino acids 69-76 and 179-182 are necessary for interaction with TNPO3. Amino acids 31-34, 96-99 and 241-244 are necessary for nuclear localization. |
| Post-translational modification | Phosphorylated on Thr-61 and Thr-62 in the S-phase. Phosphorylation of Thr-62 by CDK1 primes phosphorylation of Thr-61 by CK2. Phosphorylation of Thr-62 is required for its degradation by the proteasome at the end of the S phase. Its degradation is not required for histone mRNA degradation at the end of the S phase. All the phosphorylated forms detected are present in the cytoplasm. Both unphosphorylated and phosphorylated forms bind the stem-loop structure of histone mRNAs. Ref.9 Ref.16 |
| Sequence similarities | Belongs to the SLBP family. |
Ontologies
Alternative products
| This entry describes 2 isoforms produced by alternative splicing. [Align] [Select] | ||||||
| Isoform 1 (identifier: Q14493-1) 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: Q14493-2) The sequence of this isoform differs from the canonical sequence as follows: 20-58: Missing. |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||||||||
Molecule processing | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 270 | 270 | Histone RNA hairpin-binding protein | PRO_0000100356 | |||||||||||
Regions | |||||||||||||||
| Region | 129 – 198 | 70 | RNA-binding | ||||||||||||
| Motif | 31 – 34 | 4 | Nuclear localization signal NLS1 | ||||||||||||
| Motif | 96 – 99 | 4 | Nuclear localization signal NLS2 | ||||||||||||
Amino acid modifications | |||||||||||||||
| Modified residue | 20 | 1 | Phosphoserine Ref.12 | ||||||||||||
| Modified residue | 23 | 1 | Phosphoserine Ref.12 | ||||||||||||
| Modified residue | 61 | 1 | Phosphothreonine; by CK2 Ref.9 Ref.16 | ||||||||||||
| Modified residue | 62 | 1 | Phosphothreonine; by CDK1 Ref.9 Ref.16 | ||||||||||||
| Modified residue | 182 | 1 | Phosphoserine Ref.21 | ||||||||||||
Natural variations | |||||||||||||||
| Alternative sequence | 20 – 58 | 39 | Missing in isoform 2. | VSP_042164 | |||||||||||
Experimental info | |||||||||||||||
| Mutagenesis | 31 – 34 | 4 | RKRR → AAAA: Reduces interaction with the importin alpha/importin beta receptor. Abolishes interaction with the importin alpha/importin beta receptor; when associated with A-96; A-97; A-98 and A-99 or with A-241; A-242; A-243 and A-244. Ref.10 | ||||||||||||
| Mutagenesis | 59 – 63 | 5 | SFTTP → AAAA: Does not increase its stability at the end of the S phase and through G2 and mitosis. Ref.9 Ref.16 | ||||||||||||
| Mutagenesis | 59 | 1 | S → A: Does not increase its stability at the end of the S phase and through G2 and mitosis. Ref.9 | ||||||||||||
| Mutagenesis | 61 | 1 | T → A: Increases its stability at the end of the S phase and through G2 and mitosis. Active in histone pre-mRNA processing during the G2 phase. Ref.9 Ref.16 | ||||||||||||
| Mutagenesis | 62 | 1 | T → A: Increases its stability at the end of the S phase and through G2 and mitosis. Ref.9 Ref.16 | ||||||||||||
| Mutagenesis | 63 | 1 | P → A: Increases its stability at the end of the S phase and through G2 and mitosis. Ref.9 | ||||||||||||
| Mutagenesis | 96 – 99 | 4 | KRKL → AAAA: Increases its stability at the end of the S phase and through G2 and mitosis. Inhibits phosphorylation of T-62. Localizes in the nucleus. Reduces interaction with the importin alpha/importin beta receptor. Abolishes interaction with the importin alpha/importin beta receptor; when associated with A-31; A-32; A-33 and A-34 or with A-241; A-242; A-243 and A-244. Ref.9 Ref.10 Ref.16 | ||||||||||||
| Mutagenesis | 137 | 1 | R → A: Inhibits histone RNA-binding and localization to the cytoplasm. Ref.10 | ||||||||||||
| Mutagenesis | 138 | 1 | R → A: Inhibits histone RNA-binding and localization to the cytoplasm. Ref.10 | ||||||||||||
| Mutagenesis | 230 – 270 | 41 | Missing: Decrease in 3'-end processing efficiency. Ref.8 | ||||||||||||
| Mutagenesis | 241 – 244 | 4 | KVRH → AAAA: Reduces interaction with the Importin alpha/Importin beta receptor. Abolishes interaction with the Importin alpha/Importin beta receptor; when associated with A-31; A-32; A-33 and A-34 or with A-96; A-97; A-98 and A-99. Ref.10 | ||||||||||||
Secondary structure | |||||||||||||||
Helix Strand Turn | |||||||||||||||
| Helix | 132 – 146 | 15 | |||||||||||||
| Helix | 149 – 157 | 9 | |||||||||||||
| Helix | 180 – 194 | 15 | |||||||||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "Expressed genes, Alu repeats and polymorphisms in cosmids sequenced from chromosome 4p16.3." McCombie W.R., Martin-Gallardo A., Gocayne J.D., FitzGerald M., Dubnick M., Kelley J.M., Castilla L., Liu L.I., Wallace S., Trapp S., Tagle D., Whaley W.L., Cheng S., Gusella J., Frischauf A.-M., Poustka A., Lehrach H., Collins F.S. Venter J.C.Nat. Genet. 1:348-353(1992) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA] (ISOFORM 1). |
| [2] | "The protein that binds the 3' end of histone mRNA: a novel RNA-binding protein required for histone pre-mRNA processing." Wang Z.-F., Whitfield M.L., Ingledue T.C. III, Dominski Z., Marzluff W.F. Genes Dev. 10:3028-3040(1996) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1). Tissue: Cervix adenocarcinoma. |
| [3] | "The gene for histone RNA hairpin binding protein is located on human chromosome 4 and encodes a novel type of RNA binding protein." Martin F., Schaller A., Eglite S., Schuemperli D., Mueller B. EMBO J. 16:769-778(1997) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1). Tissue: Lymphocyte. |
| [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] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 2). Tissue: Heart. |
| [5] | "Generation and annotation of the DNA sequences of human chromosomes 2 and 4." Hillier L.W., Graves T.A., Fulton R.S., Fulton L.A., Pepin K.H., Minx P., Wagner-McPherson C., Layman D., Wylie K., Sekhon M., Becker M.C., Fewell G.A., Delehaunty K.D., Miner T.L., Nash W.E., Kremitzki C., Oddy L., Du H. Wilson R.K.Nature 434:724-731(2005) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. |
| [6] | Mural R.J., Istrail S., Sutton G.G., Florea L., Halpern A.L., Mobarry C.M., Lippert R., Walenz B., Shatkay H., Dew I., Miller J.R., Flanigan M.J., Edwards N.J., Bolanos R., Fasulo D., Halldorsson B.V., Hannenhalli S., Turner R. Venter J.C.Submitted (SEP-2005) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. |
| [7] | "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] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 1). Tissue: Uterus. |
| [8] | "A novel zinc finger protein is associated with U7 snRNP and interacts with the stem-loop binding protein in the histone pre-mRNP to stimulate 3'-end processing." Dominski Z., Erkmann J.A., Yang X., Sanchez R., Marzluff W.F. Genes Dev. 16:58-71(2002) [PubMed] [Europe PMC] [Abstract] Cited for: MUTAGENESIS OF 230-ASP--SER-270, INTERACTION WITH ZNF473. |
| [9] | "Phosphorylation of stem-loop binding protein (SLBP) on two threonines triggers degradation of SLBP, the sole cell cycle-regulated factor required for regulation of histone mRNA processing, at the end of S phase." Zheng L., Dominski Z., Yang X.-C., Elms P., Raska C.S., Borchers C.H., Marzluff W.F. Mol. Cell. Biol. 23:1590-1601(2003) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION, ASSOCIATION WITH POLYRIBOSOMES, SUBCELLULAR LOCATION, PHOSPHORYLATION AT THR-61 AND THR-62, RNA-BINDING, MUTAGENESIS OF SER-59; THR-61; THR-62; PRO-63 AND 96-LYS--LEU-99, IDENTIFICATION BY MASS SPECTROMETRY. |
| [10] | "Nuclear import of the stem-loop binding protein and localization during the cell cycle." Erkmann J.A., Wagner E.J., Dong J., Zhang Y., Kutay U., Marzluff W.F. Mol. Biol. Cell 16:2960-2971(2005) [PubMed] [Europe PMC] [Abstract] Cited for: INTERACTION WITH TNPO3 AND THE IMPORTIN ALPHA/IMPORTIN BETA RECEPTOR, SUBCELLULAR LOCATION, MUTAGENESIS OF 31-ARG--ARG-34; 96-LYS--LYS-99; ARG-137; ARG-138 AND 241-LYS--HIS-244. |
| [11] | "Regulated degradation of replication-dependent histone mRNAs requires both ATR and Upf1." Kaygun H., Marzluff W.F. Nat. Struct. Mol. Biol. 12:794-800(2005) [PubMed] [Europe PMC] [Abstract] Cited for: INTERACTION WITH UPF1. |
| [12] | "Global, in vivo, and site-specific phosphorylation dynamics in signaling networks." Olsen J.V., Blagoev B., Gnad F., Macek B., Kumar C., Mortensen P., Mann M. Cell 127:635-648(2006) [PubMed] [Europe PMC] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-20 AND SER-23, MASS SPECTROMETRY. Tissue: Cervix carcinoma. |
| [13] | "Characterization of 3'hExo, a 3' exonuclease specifically interacting with the 3' end of histone mRNA." Yang X.-C., Purdy M., Marzluff W.F., Dominski Z. J. Biol. Chem. 281:30447-30454(2006) [PubMed] [Europe PMC] [Abstract] Cited for: IDENTIFICATION IN A TERNARY COMPLEX, RNA-BINDING. |
| [14] | "Degradation of histone mRNA requires oligouridylation followed by decapping and simultaneous degradation of the mRNA both 5' to 3' and 3' to 5'." Mullen T.E., Marzluff W.F. Genes Dev. 22:50-65(2008) [PubMed] [Europe PMC] [Abstract] Cited for: INTERACTION WITH LSM1. |
| [15] | "SLIP1, a factor required for activation of histone mRNA translation by the stem-loop binding protein." Cakmakci N.G., Lerner R.S., Wagner E.J., Zheng L., Marzluff W.F. Mol. Cell. Biol. 28:1182-1194(2008) [PubMed] [Europe PMC] [Abstract] Cited for: INTERACTION WITH MIF4GD. |
| [16] | "Phosphorylation of threonine 61 by cyclin a/Cdk1 triggers degradation of stem-loop binding protein at the end of S phase." Koseoglu M.M., Graves L.M., Marzluff W.F. Mol. Cell. Biol. 28:4469-4479(2008) [PubMed] [Europe PMC] [Abstract] Cited for: PHOSPHORYLATION AT THR-61 AND THR-62, MUTAGENESIS OF THR-61; THR-62; 59-SER--PRO-63 AND 96-LYS--LEU-99, IDENTIFICATION BY MASS SPECTROMETRY. |
| [17] | "A quantitative atlas of mitotic phosphorylation." Dephoure N., Zhou C., Villen J., Beausoleil S.A., Bakalarski C.E., Elledge S.J., Gygi S.P. Proc. Natl. Acad. Sci. U.S.A. 105:10762-10767(2008) [PubMed] [Europe PMC] [Abstract] Cited for: IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS]. Tissue: Cervix carcinoma. |
| [18] | "Knockdown of SLBP results in nuclear retention of histone mRNA." Sullivan K.D., Mullen T.E., Marzluff W.F., Wagner E.J. RNA 15:459-472(2009) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION IN HISTONE MRNA EXPORT. |
| [19] | "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] [Europe PMC] [Abstract] Cited for: IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS]. Tissue: Leukemic T-cell. |
| [20] | "Initial characterization of the human central proteome." Burkard T.R., Planyavsky M., Kaupe I., Breitwieser F.P., Buerckstuemmer T., Bennett K.L., Superti-Furga G., Colinge J. BMC Syst. Biol. 5:17-17(2011) [PubMed] [Europe PMC] [Abstract] Cited for: IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS]. |
| [21] | "System-wide temporal characterization of the proteome and phosphoproteome of human embryonic stem cell differentiation." Rigbolt K.T., Prokhorova T.A., Akimov V., Henningsen J., Johansen P.T., Kratchmarova I., Kassem M., Mann M., Olsen J.V., Blagoev B. Sci. Signal. 4:RS3-RS3(2011) [PubMed] [Europe PMC] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-182, MASS SPECTROMETRY. |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| EMBL GenBank DDBJ | M63544 Genomic DNA. No translation available. U75679 mRNA. Translation: AAB97091.1. Z71188 mRNA. Translation: CAA94918.1. AK091735 mRNA. Translation: BAG52407.1. AC016773 Genomic DNA. No translation available. CH471131 Genomic DNA. Translation: EAW82579.1. BC014908 mRNA. Translation: AAH14908.1. BC015703 mRNA. Translation: AAH15703.1. | ||||||||||||||||||
| IPI | IPI00031015. IPI00947182. | ||||||||||||||||||
| RefSeq | NP_006518.1. NM_006527.2. | ||||||||||||||||||
| UniGene | Hs.298345. | ||||||||||||||||||
3D structure databases | |||||||||||||||||||
| PDBe RCSB PDB PDBj |
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| ProteinModelPortal | Q14493. | ||||||||||||||||||
| ModBase | Search... | ||||||||||||||||||
Protein-protein interaction databases | |||||||||||||||||||
| IntAct | Q14493. 3 interactions. | ||||||||||||||||||
| STRING | 9606.ENSP00000417686. | ||||||||||||||||||
PTM databases | |||||||||||||||||||
| PhosphoSite | Q14493. | ||||||||||||||||||
Polymorphism databases | |||||||||||||||||||
| DMDM | 9789785. | ||||||||||||||||||
Proteomic databases | |||||||||||||||||||
| PaxDb | Q14493. | ||||||||||||||||||
| PeptideAtlas | Q14493. | ||||||||||||||||||
| PRIDE | Q14493. | ||||||||||||||||||
Protocols and materials databases | |||||||||||||||||||
| DNASU | 7884. | ||||||||||||||||||
| StructuralBiologyKnowledgebase | Search... | ||||||||||||||||||
Genome annotation databases | |||||||||||||||||||
| Ensembl | ENST00000429429; ENSP00000406322; ENSG00000163950. ENST00000489418; ENSP00000417686; ENSG00000163950. | ||||||||||||||||||
| GeneID | 7884. | ||||||||||||||||||
| KEGG | hsa:7884. | ||||||||||||||||||
| UCSC | uc003gdi.1. human. | ||||||||||||||||||
Organism-specific databases | |||||||||||||||||||
| CTD | 7884. | ||||||||||||||||||
| GeneCards | GC04M001694. | ||||||||||||||||||
| HGNC | HGNC:10904. SLBP. | ||||||||||||||||||
| HPA | HPA019254. | ||||||||||||||||||
| MIM | 602422. gene. | ||||||||||||||||||
| neXtProt | NX_Q14493. | ||||||||||||||||||
| PharmGKB | PA35804. | ||||||||||||||||||
| GenAtlas | Search... | ||||||||||||||||||
Phylogenomic databases | |||||||||||||||||||
| eggNOG | NOG278381. | ||||||||||||||||||
| HOGENOM | HOG000065710. | ||||||||||||||||||
| HOVERGEN | HBG017805. | ||||||||||||||||||
| InParanoid | Q14493. | ||||||||||||||||||
| OrthoDB | EOG4J1196. | ||||||||||||||||||
| PhylomeDB | Q14493. | ||||||||||||||||||
Enzyme and pathway databases | |||||||||||||||||||
| Reactome | REACT_1675. mRNA Processing. REACT_1788. Transcription. REACT_71. Gene Expression. REACT_78. Post-Elongation Processing of the Transcript. | ||||||||||||||||||
Gene expression databases | |||||||||||||||||||
| ArrayExpress | Q14493. | ||||||||||||||||||
| Bgee | Q14493. | ||||||||||||||||||
| CleanEx | HS_SLBP. | ||||||||||||||||||
| Genevestigator | Q14493. | ||||||||||||||||||
| GermOnline | ENSG00000163950. Homo sapiens. | ||||||||||||||||||
Family and domain databases | |||||||||||||||||||
| InterPro | IPR026502. SLBP1/SLBP2. [Graphical view] | ||||||||||||||||||
| PANTHER | PTHR17408. PTHR17408. 1 hit. | ||||||||||||||||||
| ProtoNet | Search... | ||||||||||||||||||
Other | |||||||||||||||||||
| EvolutionaryTrace | Q14493. | ||||||||||||||||||
| GenomeRNAi | 7884. | ||||||||||||||||||
| NextBio | 30350. | ||||||||||||||||||
| SOURCE | Search... | ||||||||||||||||||
Entry information
| Entry name | SLBP_HUMAN | ||||||||
| Accession | Primary (citable) accession number: Q14493 Secondary accession number(s): B3KRJ5 | ||||||||
| Entry history |
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| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation program | Chordata Protein Annotation Program | ||||||||
| 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 4 Human chromosome 4: entries, gene names and cross-references to MIM |
| MIM cross-references Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot |
| PDB cross-references Index of Protein Data Bank (PDB) cross-references |
| SIMILARITY comments Index of protein domains and families |

Clusters with
