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Entry version 138 (13 Feb 2019)
Sequence version 1 (01 Oct 2002)
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Protein

Protein lin-28 homolog A

Gene

Lin28a

Organism
Mus musculus (Mouse)
Status
Reviewed-Annotation score:

Annotation score:5 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the ‘correct annotation’ for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>
-Experimental evidence at protein leveli <p>This indicates the type of evidence that supports the existence of the protein. Note that the ‘protein existence’ evidence does not give information on the accuracy or correctness of the sequence(s) displayed.<p><a href='/help/protein_existence' target='_top'>More...</a></p>

<p>This section provides any useful information about the protein, mostly biological knowledge.<p><a href='/help/function_section' target='_top'>More...</a></p>Functioni

RNA-binding protein that inhibits processing of pre-let-7 miRNAs and regulates translation of mRNAs that control developmental timing, pluripotency and metabolism (PubMed:17473174, PubMed:18604195, PubMed:18566191, PubMed:18292307, PubMed:19703396, PubMed:23102813, PubMed:24209617). Seems to recognize a common structural G-quartet (G4) feature in its miRNA and mRNA targets (PubMed:26045559). 'Translational enhancer' that drives specific mRNAs to polysomes and increases the efficiency of protein synthesis. Its association with the translational machinery and target mRNAs results in an increased number of initiation events per molecule of mRNA and, indirectly, in mRNA stabilization. Binds IGF2 mRNA, MYOD1 mRNA, ARBP/36B4 ribosomal protein mRNA and its own mRNA. Essential for skeletal muscle differentiation program through the translational up-regulation of IGF2 expression (PubMed:17473174). Suppressor of microRNA (miRNA) biogenesis, including that of let-7, miR107, miR-143 and miR-200c. Specifically binds the miRNA precursors (pre-miRNAs), recognizing an 5'-GGAG-3' motif found in pre-miRNA terminal loop, and recruits TUT4 and TUT7 uridylyltransferaseS. This results in the terminal uridylation of target pre-miRNAs. Uridylated pre-miRNAs fail to be processed by Dicer and undergo degradation. The repression of let-7 expression is required for normal development and contributes to maintain the pluripotent state by preventing let-7-mediated differentiation of embryonic stem cells (PubMed:19703396, PubMed:28671666). Localized to the periendoplasmic reticulum area, binds to a large number of spliced mRNAs and inhibits the translation of mRNAs destined for the ER, reducing the synthesis of transmembrane proteins, ER or Golgi lumen proteins, and secretory proteins (PubMed:23102813). Binds to and enhances the translation of mRNAs for several metabolic enzymes, such as PFKP, PDHA1 or SDHA, increasing glycolysis and oxidative phosphorylation. Which, with the let-7 repression may enhance tissue repair in adult tissue (PubMed:24209617).9 Publications

Miscellaneous

Reactivation of LIN28A expression enhances tissue repair in some adult tissues by reprogramming cellular bioenergetics. Improves hair regrowth by promoting anagen in hair follicle and accelerates regrowth of cartilage, bone and mesenchyme after ear and digit injuries.1 Publication

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Function’ section specifies the position(s) and type(s) of zinc fingers within the protein.<p><a href='/help/zn_fing' target='_top'>More...</a></p>Zinc fingeri137 – 154CCHC-type 1PROSITE-ProRule annotationAdd BLAST18
Zinc fingeri159 – 176CCHC-type 2PROSITE-ProRule annotationAdd BLAST18

<p>The <a href="http://www.geneontology.org/">Gene Ontology (GO)</a> project provides a set of hierarchical controlled vocabulary split into 3 categories:<p><a href='/help/gene_ontology' target='_top'>More...</a></p>GO - Molecular functioni

GO - Biological processi

<p>UniProtKB Keywords constitute a <a href="http://www.uniprot.org/keywords">controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='/help/keywords' target='_top'>More...</a></p>Keywordsi

Molecular functionRNA-binding
Biological processRNA-mediated gene silencing
LigandMetal-binding, Zinc

<p>This section provides information about the protein and gene name(s) and synonym(s) and about the organism that is the source of the protein sequence.<p><a href='/help/names_and_taxonomy_section' target='_top'>More...</a></p>Names & Taxonomyi

<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section provides an exhaustive list of all names of the protein, from commonly used to obsolete, to allow unambiguous identification of a protein.<p><a href='/help/protein_names' target='_top'>More...</a></p>Protein namesi
Recommended name:
Protein lin-28 homolog A
Short name:
Lin-28A
Alternative name(s):
Testis-expressed protein 17
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section indicates the name(s) of the gene(s) that code for the protein sequence(s) described in the entry. Four distinct tokens exist: ‘Name’, ‘Synonyms’, ‘Ordered locus names’ and ‘ORF names’.<p><a href='/help/gene_name' target='_top'>More...</a></p>Gene namesi
Name:Lin28a
Synonyms:Lin28, Tex17
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section provides information on the name(s) of the organism that is the source of the protein sequence.<p><a href='/help/organism-name' target='_top'>More...</a></p>OrganismiMus musculus (Mouse)
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section shows the unique identifier assigned by the NCBI to the source organism of the protein. This is known as the ‘taxonomic identifier’ or ‘taxid’.<p><a href='/help/taxonomic_identifier' target='_top'>More...</a></p>Taxonomic identifieri10090 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section contains the taxonomic hierarchical classification lineage of the source organism. It lists the nodes as they appear top-down in the taxonomic tree, with the more general grouping listed first.<p><a href='/help/taxonomic_lineage' target='_top'>More...</a></p>Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresGliresRodentiaMyomorphaMuroideaMuridaeMurinaeMusMus
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section is present for entries that are part of a <a href="http://www.uniprot.org/proteomes">proteome</a>, i.e. of a set of proteins thought to be expressed by organisms whose genomes have been completely sequenced.<p><a href='/help/proteomes_manual' target='_top'>More...</a></p>Proteomesi
  • UP000000589 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes_manual">proteome</a> can consist of several components. <br></br>The component name refers to the genomic component encoding a set of proteins.<p><a href='/help/proteome_component' target='_top'>More...</a></p> Componenti: Chromosome 4

Organism-specific databases

Mouse genome database (MGD) from Mouse Genome Informatics (MGI)

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MGIi
MGI:1890546 Lin28a

<p>This section provides information on the location and the topology of the mature protein in the cell.<p><a href='/help/subcellular_location_section' target='_top'>More...</a></p>Subcellular locationi

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte & Seán O’Donoghue; Source: COMPARTMENTS

Keywords - Cellular componenti

Cytoplasm, Endoplasmic reticulum, Nucleus

<p>This section provides information on the disease(s) and phenotype(s) associated with a protein.<p><a href='/help/pathology_and_biotech_section' target='_top'>More...</a></p>Pathology & Biotechi

Mutagenesis

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/manual/pathology_and_biotech_section">'Pathology and Biotech'</a> section describes the effect of the experimental mutation of one or more amino acid(s) on the biological properties of the protein.<p><a href='/help/mutagen' target='_top'>More...</a></p>Mutagenesisi42G → S: Erroneous subcellular location. No positive effect on terminal myogenic differentiation. 1 Publication1
Mutagenesisi44 – 47Missing : Erroneous subcellular location. No positive effect on terminal myogenic differentiation. 1 Publication4
Mutagenesisi81M → I: Erroneous subcellular location; when associated with Q-85. No positive effect on terminal myogenic differentiation; when associated with Q-85. 1 Publication1
Mutagenesisi85R → Q: Erroneous subcellular location; when associated with I-81. No positive effect on terminal myogenic differentiation; when associated with I-81. 1 Publication1
Mutagenesisi119G → R: Erroneous subcellular location; when associated with S-124. No positive effect on terminal myogenic differentiation; when associated with S-124. 1 Publication1
Mutagenesisi124P → S: Erroneous subcellular location; when associated with R-119. No positive effect on terminal myogenic differentiation; when associated with R-119. 1 Publication1
Mutagenesisi138 – 139Missing : No effect on subcellular location; when associated with S-142. Normal terminal myogenic differentiation; when associated with S-142. 1 Publication2
Mutagenesisi139 – 142CYNC → AYNA: Disrupts 5'-GGAG-3' motif interaction. Disrupts oligoU-addition to pre-miRNA pre-let-7 by TUT4. 1 Publication4
Mutagenesisi142C → S: No effect on subcellular location; when associated with 44-C--F-47. Normal terminal myogenic differentiation; when associated with 44-C--F-47. 1 Publication1
Mutagenesisi161 – 164CHFC → AHFA: Disrupts 5'-GGAG-3' motif interaction. Binds miRNA but not TUT4. 1 Publication4

<p>This section describes post-translational modifications (PTMs) and/or processing events.<p><a href='/help/ptm_processing_section' target='_top'>More...</a></p>PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/ptm_processing_section">PTM / Processing</a> section indicates that the initiator methionine is cleaved from the mature protein.<p><a href='/help/init_met' target='_top'>More...</a></p>Initiator methionineiRemovedBy similarity
<p>This subsection of the ‘PTM / Processing’ section describes the extent of a polypeptide chain in the mature protein following processing.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00002537882 – 209Protein lin-28 homolog AAdd BLAST208

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘PTM / Processing’ section specifies the position and type of each modified residue excluding <a href="http://www.uniprot.org/manual/lipid">lipids</a>, <a href="http://www.uniprot.org/manual/carbohyd">glycans</a> and <a href="http://www.uniprot.org/manual/crosslnk">protein cross-links</a>.<p><a href='/help/mod_res' target='_top'>More...</a></p>Modified residuei2N-acetylglycineBy similarity1
Modified residuei3PhosphoserineBy similarity1
Modified residuei120PhosphoserineBy similarity1
Modified residuei200PhosphoserineBy similarity1

Keywords - PTMi

Acetylation, Phosphoprotein

Proteomic databases

MaxQB - The MaxQuant DataBase

More...
MaxQBi
Q8K3Y3

PaxDb, a database of protein abundance averages across all three domains of life

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PaxDbi
Q8K3Y3

PeptideAtlas

More...
PeptideAtlasi
Q8K3Y3

PRoteomics IDEntifications database

More...
PRIDEi
Q8K3Y3

PTM databases

iPTMnet integrated resource for PTMs in systems biology context

More...
iPTMneti
Q8K3Y3

Comprehensive resource for the study of protein post-translational modifications (PTMs) in human, mouse and rat.

More...
PhosphoSitePlusi
Q8K3Y3

<p>This section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms.<p><a href='/help/expression_section' target='_top'>More...</a></p>Expressioni

<p>This subsection of the ‘Expression’ section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms. By default, the information is derived from experiments at the mRNA level, unless specified ‘at protein level’. <br></br>Examples: <a href="http://www.uniprot.org/uniprot/P92958#expression">P92958</a>, <a href="http://www.uniprot.org/uniprot/Q8TDN4#expression">Q8TDN4</a>, <a href="http://www.uniprot.org/uniprot/O14734#expression">O14734</a><p><a href='/help/tissue_specificity' target='_top'>More...</a></p>Tissue specificityi

Expressed in embryonic stem cells (ES cells), spermatagonia and testis. Expressed in numerous epithelial tissues including the epithelia of the small intestine, the intralobular duct epithelium of the mammary gland and the epithelia of Henle's loop in the kidney and in the collecting duct (at protein level). Also expressed in the myocardium and skeletal muscle (at protein level).4 Publications

<p>This subsection of the ‘Expression’ section provides information on the expression of the gene product at various stages of a cell, tissue or organism development. By default, the information is derived from experiments at the mRNA level, unless specified ‘at the protein level’.<p><a href='/help/developmental_stage' target='_top'>More...</a></p>Developmental stagei

Strongly expressed throughout the whole embryo at 6.5 dpc, including the embryonic and extraembryonic ectoderm and endoderm (at protein level). Subsequently expressed in the ectoderm, endoderm and mesoderm at 7.5 dpc (at protein level). At 9.5 dpc, expressed in epithelia covering the first branchial arch and the coelomic cavity, the myocardium of the developing heart, the neuroepithelium and some extraembryonic tissues such as the visceral yolk sac (at protein level). Expression persists in a variety of epithelial tissues at 10.5 dpc. At 15.5 dpc, expression is lost in bronchial epithelium and becomes weaker in neuroepithelium, while increasing in the myotome of somites, the foregut epithelium, stratified epithelium and some kidney tubules (at protein level). At 17.5 dpc, expression persists in the myocardium and in the epithelium covering the body surface and skeletal muscles (at protein level). Expression is reduced during differentiation of ES cells. In adult primary myoblasts, barely detectable during proliferation, but dramatically up-regulated during terminal differentiation. Induced as early as 24 hours after differentiation signal and remains high as late as 7 days of differentiation. Little expression in resting muscle, but strongly up-regulated during regeneration of skeletal muscle fibers. Expression decreases when regeneration is histologically and functionally complete.4 Publications

<p>This subsection of the ‘Expression’ section reports the experimentally proven effects of inducers and repressors (usually chemical compounds or environmental factors) on the level of protein (or mRNA) expression (up-regulation, down-regulation, constitutive expression).<p><a href='/help/induction' target='_top'>More...</a></p>Inductioni

Negatively regulated by the microRNA miR-125b in response to retinoic acid.2 Publications

Gene expression databases

Bgee dataBase for Gene Expression Evolution

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Bgeei
ENSMUSG00000050966 Expressed in 77 organ(s), highest expression level in epiblast (generic)

ExpressionAtlas, Differential and Baseline Expression

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ExpressionAtlasi
Q8K3Y3 baseline and differential

Genevisible search portal to normalized and curated expression data from Genevestigator

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Genevisiblei
Q8K3Y3 MM

<p>This section provides information on the quaternary structure of a protein and on interaction(s) with other proteins or protein complexes.<p><a href='/help/interaction_section' target='_top'>More...</a></p>Interactioni

<p>This subsection of the <a href="http://www.uniprot.org/help/interaction_section">'Interaction'</a> section provides information about the protein quaternary structure and interaction(s) with other proteins or protein complexes (with the exception of physiological receptor-ligand interactions which are annotated in the <a href="http://www.uniprot.org/help/function_section">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Monomer (PubMed:22078496). During skeletal muscle differentiation, associated with translation initiation complexes in the polysomal compartment (By similarity). Directly interacts with EIF3S2 (PubMed:17473174). Interacts with NCL in an RNA-dependent manner (By similarity). Interacts with TUT4 in the presence of pre-let-7 RNA (PubMed:28671666).By similarity3 Publications

<p>This subsection of the '<a href="http://www.uniprot.org/help/interaction_section%27">Interaction</a> section provides information about binary protein-protein interactions. The data presented in this section are a quality-filtered subset of binary interactions automatically derived from the <a href="http://www.ebi.ac.uk/intact/">IntAct database</a>. It is updated on a monthly basis. Each binary interaction is displayed on a separate line.<p><a href='/help/binary_interactions' target='_top'>More...</a></p>Binary interactionsi

WithEntry#Exp.IntActNotes
Dis3l2Q8CI752EBI-11109197,EBI-16045218

GO - Molecular functioni

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGrid)

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BioGridi
219943, 8 interactors

Database of interacting proteins

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DIPi
DIP-48573N

Protein interaction database and analysis system

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IntActi
Q8K3Y3, 17 interactors

STRING: functional protein association networks

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STRINGi
10090.ENSMUSP00000050488

<p>This section provides information on the tertiary and secondary structure of a protein.<p><a href='/help/structure_section' target='_top'>More...</a></p>Structurei

Secondary structure

1209
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details

3D structure databases

Select the link destinations:

Protein Data Bank Europe

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PDBei

Protein Data Bank RCSB

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RCSB PDBi

Protein Data Bank Japan

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PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
3TRZX-ray2.90A/B/C/D/E/F31-187[»]
3TS0X-ray2.76A/B33-187[»]
3TS2X-ray2.01A/B31-187[»]

Protein Model Portal of the PSI-Nature Structural Biology Knowledgebase

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ProteinModelPortali
Q8K3Y3

SWISS-MODEL Repository - a database of annotated 3D protein structure models

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SMRi
Q8K3Y3

Database of comparative protein structure models

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ModBasei
Search...

MobiDB: a database of protein disorder and mobility annotations

More...
MobiDBi
Search...

<p>This section provides information on sequence similarities with other proteins and the domain(s) present in a protein.<p><a href='/help/family_and_domains_section' target='_top'>More...</a></p>Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/family_and_domains_section">Family and Domains</a> section describes the position and type of a domain, which is defined as a specific combination of secondary structures organized into a characteristic three-dimensional structure or fold.<p><a href='/help/domain' target='_top'>More...</a></p>Domaini39 – 112CSDAdd BLAST74

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Family and Domains’ section describes a region of interest that cannot be described in other subsections.<p><a href='/help/region' target='_top'>More...</a></p>Regioni113 – 136Flexible linkerAdd BLAST24

<p>This subsection of the ‘Family and domains’ section provides general information on the biological role of a domain. The term ‘domain’ is intended here in its wide acceptation, it may be a structural domain, a transmembrane region or a functional domain. Several domains are described in this subsection.<p><a href='/help/domain_cc' target='_top'>More...</a></p>Domaini

The CSD domain is required for function in muscle differentiation.1 Publication
The CCHC zinc fingers interact with the GGAG motif at the 3' end of let-7 miRNAs precursors, more generally they bind the 5'-NGNNG-3' consensus motif with micromolar affinity. The CSD domain recognizes the loop at the 5' end. The flexible linker allows accommodating variable sequences and lengths among let-7 family members.2 Publications

<p>This subsection of the ‘Family and domains’ section provides information about the sequence similarity with other proteins.<p><a href='/help/sequence_similarities' target='_top'>More...</a></p>Sequence similaritiesi

Belongs to the lin-28 family.Curated

Zinc finger

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Zinc fingeri137 – 154CCHC-type 1PROSITE-ProRule annotationAdd BLAST18
Zinc fingeri159 – 176CCHC-type 2PROSITE-ProRule annotationAdd BLAST18

Keywords - Domaini

Repeat, Zinc-finger

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

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eggNOGi
KOG3070 Eukaryota
COG1278 LUCA

Ensembl GeneTree

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GeneTreei
ENSGT00940000153295

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

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HOGENOMi
HOG000047091

The HOVERGEN Database of Homologous Vertebrate Genes

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HOVERGENi
HBG081922

InParanoid: Eukaryotic Ortholog Groups

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InParanoidi
Q8K3Y3

KEGG Orthology (KO)

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KOi
K18754

Identification of Orthologs from Complete Genome Data

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OMAi
CPERRRK

Database of Orthologous Groups

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OrthoDBi
1604809at2759

Database for complete collections of gene phylogenies

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PhylomeDBi
Q8K3Y3

TreeFam database of animal gene trees

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TreeFami
TF316240

Family and domain databases

Conserved Domains Database

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CDDi
cd04458 CSP_CDS, 1 hit

Integrated resource of protein families, domains and functional sites

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InterProi
View protein in InterPro
IPR011129 CSD
IPR002059 CSP_DNA-bd
IPR012340 NA-bd_OB-fold
IPR001878 Znf_CCHC
IPR036875 Znf_CCHC_sf

Pfam protein domain database

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Pfami
View protein in Pfam
PF00313 CSD, 1 hit
PF00098 zf-CCHC, 1 hit

Protein Motif fingerprint database; a protein domain database

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PRINTSi
PR00050 COLDSHOCK

Simple Modular Architecture Research Tool; a protein domain database

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SMARTi
View protein in SMART
SM00357 CSP, 1 hit
SM00343 ZnF_C2HC, 2 hits

Superfamily database of structural and functional annotation

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SUPFAMi
SSF50249 SSF50249, 1 hit
SSF57756 SSF57756, 1 hit

PROSITE; a protein domain and family database

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PROSITEi
View protein in PROSITE
PS51857 CSD_2, 1 hit
PS50158 ZF_CCHC, 1 hit

<p>This section displays by default the canonical protein sequence and upon request all isoforms described in the entry. It also includes information pertinent to the sequence(s), including <a href="http://www.uniprot.org/help/sequence_length">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>.<p><a href='/help/sequences_section' target='_top'>More...</a></p>Sequence (1+)i

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> displayed by default in the entry is complete or not.<p><a href='/help/sequence_status' target='_top'>More...</a></p>Sequence statusi: Complete.

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> displayed by default in the entry is in its mature form or if it represents the precursor.<p><a href='/help/sequence_processing' target='_top'>More...</a></p>Sequence processingi: The displayed sequence is further processed into a mature form.

This entry has 1 described isoform and 3 potential isoforms that are computationally mapped.Show allAlign All

Q8K3Y3-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MGSVSNQQFA GGCAKAAEKA PEEAPPDAAR AADEPQLLHG AGICKWFNVR
60 70 80 90 100
MGFGFLSMTA RAGVALDPPV DVFVHQSKLH MEGFRSLKEG EAVEFTFKKS
110 120 130 140 150
AKGLESIRVT GPGGVFCIGS ERRPKGKNMQ KRRSKGDRCY NCGGLDHHAK
160 170 180 190 200
ECKLPPQPKK CHFCQSINHM VASCPLKAQQ GPSSQGKPAY FREEEEEIHS

PALLPEAQN
Length:209
Mass (Da):22,720
Last modified:October 1, 2002 - v1
<p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.</p> <p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.</p> <p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).</p> <p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x<sup>64</sup> + x<sup>4</sup> + x<sup>3</sup> + x + 1. The algorithm is described in the ISO 3309 standard. </p> <p class="publication">Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.<br /> <strong>Cyclic redundancy and other checksums</strong><br /> <a href="http://www.nrbook.com/b/bookcpdf.php">Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993)</a>)</p> Checksum:i4BD14DCAF13CD659
GO

<p>In eukaryotic reference proteomes, unreviewed entries that are likely to belong to the same gene are computationally mapped, based on gene identifiers from Ensembl, EnsemblGenomes and model organism databases.<p><a href='/help/gene_centric_isoform_mapping' target='_top'>More...</a></p>Computationally mapped potential isoform sequencesi

There are 3 potential isoforms mapped to this entry.BLASTAlignShow allAdd to basket
EntryEntry nameProtein names
Gene namesLengthAnnotation
H3BK51H3BK51_MOUSE
Protein lin-28 homolog A
Lin28a
83Annotation score:

Annotation score:1 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the ‘correct annotation’ for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>
H3BL11H3BL11_MOUSE
Protein lin-28 homolog A
Lin28a
81Annotation score:

Annotation score:1 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the ‘correct annotation’ for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>
H3BLC6H3BLC6_MOUSE
Protein lin-28 homolog A
Lin28a
75Annotation score:

Annotation score:1 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the ‘correct annotation’ for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Sequence’ section reports difference(s) between the canonical sequence (displayed by default in the entry) and the different sequence submissions merged in the entry. These various submissions may originate from different sequencing projects, different types of experiments, or different biological samples. Sequence conflicts are usually of unknown origin.<p><a href='/help/conflict' target='_top'>More...</a></p>Sequence conflicti194E → D in AAH68304 (PubMed:15489334).Curated1

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

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EMBLi

GenBank nucleotide sequence database

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GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

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DDBJi
Links Updated
AF521097 mRNA Translation: AAM77749.1
BC068304 mRNA Translation: AAH68304.1

The Consensus CDS (CCDS) project

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CCDSi
CCDS18761.1

NCBI Reference Sequences

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RefSeqi
NP_665832.1, NM_145833.1

UniGene gene-oriented nucleotide sequence clusters

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UniGenei
Mm.302567

Genome annotation databases

Ensembl eukaryotic genome annotation project

More...
Ensembli
ENSMUST00000051674; ENSMUSP00000050488; ENSMUSG00000050966

Database of genes from NCBI RefSeq genomes

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GeneIDi
83557

KEGG: Kyoto Encyclopedia of Genes and Genomes

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KEGGi
mmu:83557

UCSC genome browser

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UCSCi
uc008vdw.1 mouse

<p>This section provides links to proteins that are similar to the protein sequence(s) described in this entry at different levels of sequence identity thresholds (100%, 90% and 50%) based on their membership in UniProt Reference Clusters (<a href="http://www.uniprot.org/help/uniref">UniRef</a>).<p><a href='/help/similar_proteins_section' target='_top'>More...</a></p>Similar proteinsi

<p>This section is used to point to information related to entries and found in data collections other than UniProtKB.<p><a href='/help/cross_references_section' target='_top'>More...</a></p>Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AF521097 mRNA Translation: AAM77749.1
BC068304 mRNA Translation: AAH68304.1
CCDSiCCDS18761.1
RefSeqiNP_665832.1, NM_145833.1
UniGeneiMm.302567

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
3TRZX-ray2.90A/B/C/D/E/F31-187[»]
3TS0X-ray2.76A/B33-187[»]
3TS2X-ray2.01A/B31-187[»]
ProteinModelPortaliQ8K3Y3
SMRiQ8K3Y3
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

BioGridi219943, 8 interactors
DIPiDIP-48573N
IntActiQ8K3Y3, 17 interactors
STRINGi10090.ENSMUSP00000050488

PTM databases

iPTMnetiQ8K3Y3
PhosphoSitePlusiQ8K3Y3

Proteomic databases

MaxQBiQ8K3Y3
PaxDbiQ8K3Y3
PeptideAtlasiQ8K3Y3
PRIDEiQ8K3Y3

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsembliENSMUST00000051674; ENSMUSP00000050488; ENSMUSG00000050966
GeneIDi83557
KEGGimmu:83557
UCSCiuc008vdw.1 mouse

Organism-specific databases

Comparative Toxicogenomics Database

More...
CTDi
79727
MGIiMGI:1890546 Lin28a

Phylogenomic databases

eggNOGiKOG3070 Eukaryota
COG1278 LUCA
GeneTreeiENSGT00940000153295
HOGENOMiHOG000047091
HOVERGENiHBG081922
InParanoidiQ8K3Y3
KOiK18754
OMAiCPERRRK
OrthoDBi1604809at2759
PhylomeDBiQ8K3Y3
TreeFamiTF316240

Miscellaneous databases

Protein Ontology

More...
PROi
PR:Q8K3Y3

The Stanford Online Universal Resource for Clones and ESTs

More...
SOURCEi
Search...

Gene expression databases

BgeeiENSMUSG00000050966 Expressed in 77 organ(s), highest expression level in epiblast (generic)
ExpressionAtlasiQ8K3Y3 baseline and differential
GenevisibleiQ8K3Y3 MM

Family and domain databases

CDDicd04458 CSP_CDS, 1 hit
InterProiView protein in InterPro
IPR011129 CSD
IPR002059 CSP_DNA-bd
IPR012340 NA-bd_OB-fold
IPR001878 Znf_CCHC
IPR036875 Znf_CCHC_sf
PfamiView protein in Pfam
PF00313 CSD, 1 hit
PF00098 zf-CCHC, 1 hit
PRINTSiPR00050 COLDSHOCK
SMARTiView protein in SMART
SM00357 CSP, 1 hit
SM00343 ZnF_C2HC, 2 hits
SUPFAMiSSF50249 SSF50249, 1 hit
SSF57756 SSF57756, 1 hit
PROSITEiView protein in PROSITE
PS51857 CSD_2, 1 hit
PS50158 ZF_CCHC, 1 hit

ProtoNet; Automatic hierarchical classification of proteins

More...
ProtoNeti
Search...

<p>This section provides general information on the entry.<p><a href='/help/entry_information_section' target='_top'>More...</a></p>Entry informationi

<p>This subsection of the ‘Entry information’ section provides a mnemonic identifier for a UniProtKB entry, but it is not a stable identifier. Each reviewed entry is assigned a unique entry name upon integration into UniProtKB/Swiss-Prot.<p><a href='/help/entry_name' target='_top'>More...</a></p>Entry nameiLN28A_MOUSE
<p>This subsection of the ‘Entry information’ section provides one or more accession number(s). These are stable identifiers and should be used to cite UniProtKB entries. Upon integration into UniProtKB, each entry is assigned a unique accession number, which is called ‘Primary (citable) accession number’.<p><a href='/help/accession_numbers' target='_top'>More...</a></p>AccessioniPrimary (citable) accession number: Q8K3Y3
Secondary accession number(s): Q6NV62
<p>This subsection of the ‘Entry information’ section shows the date of integration of the entry into UniProtKB, the date of the last sequence update and the date of the last annotation modification (‘Last modified’). The version number for both the entry and the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: October 17, 2006
Last sequence update: October 1, 2002
Last modified: February 13, 2019
This is version 138 of the entry and version 1 of the sequence. See complete history.
<p>This subsection of the ‘Entry information’ section indicates whether the entry has been manually annotated and reviewed by UniProtKB curators or not, in other words, if the entry belongs to the Swiss-Prot section of UniProtKB (<strong>reviewed</strong>) or to the computer-annotated TrEMBL section (<strong>unreviewed</strong>).<p><a href='/help/entry_status' target='_top'>More...</a></p>Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

<p>This section contains any relevant information that doesn’t fit in any other defined sections<p><a href='/help/miscellaneous_section' target='_top'>More...</a></p>Miscellaneousi

Keywords - Technical termi

3D-structure, Complete proteome, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families
  2. MGD cross-references
    Mouse Genome Database (MGD) cross-references in UniProtKB/Swiss-Prot
  3. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
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