3TRZ - JenaLib

Asymmetric Unit (Jmol Viewer)

Asym. Unit - sites (Jmol Viewer)

Biological Unit 1 (Jmol Viewer)

Biol. Unit 1 - sites (Jmol Viewer)

Biological Unit 2 (Jmol Viewer)

Biological Unit 3 (Jmol Viewer)

Title :   MOUSE LIN28A IN COMPLEX WITH LET-7D MICRORNA PRE-ELEMENT

Authors :   Y. Nam, P. Sliz

Date :   11 Sep 11 (Deposition) - 16 Nov 11 (Release) - 14 Dec 11 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.90

Chains :   Asym. Unit : A,B,C,D,E,F,U,V,W,X,Y,Z
Biol. Unit 1: A,B,U,V  (1x)
Biol. Unit 2: C,D,W,X  (1x)
Biol. Unit 3: E,F,Y,Z  (1x)

Keywords :   Microrna Biogenesis, Protein-Rna Complex, Pre-Element, Cchc Zinc Knuckle, Cold Shock Domain, Rna Binding Protein-Rna Complex (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   Y. Nam, C. Chen, R. I. Gregory, J. J. Chou, P. Sliz
Molecular Basis For Interaction Of Let-7 Micrornas With Lin28.
Cell(Cambridge, Mass. ) V. 147 1080 2011
PubMed-ID: 22078496 | Reference-DOI: 10.1016/J.CELL.2011.10.020

Molecule 1 - PROTEIN LIN-28 HOMOLOG A
	Chains	:	A, B, C, D, E, F
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Taxid	:	562
	Gene	:	LIN28, LIN28A, TEX17
	Organism Common	:	MOUSE
	Organism Scientific	:	MUS MUSCULUS
	Organism Taxid	:	10090
	Synonym	:	LIN-28A, TESTIS-EXPRESSED PROTEIN 17

*Molecule 2 - RNA (5'- R(GPGPGPCPAPGPGPGPAPUPUPUPUPGPCPCPCPGPGPAPG)- 3')**
	Chains	:	U, V, W, X, Y, Z
	Engineered	:	YES
	Other Details	:	PREE-LET-7D
	Other Details - Source	:	RNA OLIGONUCLEOTIDE
	Synthetic	:	YES

		1	2	3	4	5	6	7	8	9	10	11	12
Asymmetric Unit	:	A	B	C	D	E	F	U	V	W	X	Y	Z
Biological Unit 1 (1x)	:	A	B					U	V
Biological Unit 2 (1x)	:			C	D					W	X
Biological Unit 3 (1x)	:					E	F					Y	Z

Summary Information (see also Sequences/Alignments below)

Asymmetric Unit (2, 18)

No.	Name	Count	Type	Full Name
1	GMP	6	Mod. Nucleotide	GUANOSINE
2	ZN	12	Ligand/Ion	ZINC ION

Biological Unit 1 (1, 2)

No.	Name	Count	Type	Full Name
1	GMP	2	Mod. Nucleotide	GUANOSINE
2	ZN	-1	Ligand/Ion	ZINC ION

Biological Unit 2 (1, 2)

No.	Name	Count	Type	Full Name
1	GMP	2	Mod. Nucleotide	GUANOSINE
2	ZN	-1	Ligand/Ion	ZINC ION

Biological Unit 3 (1, 2)

No.	Name	Count	Type	Full Name
1	GMP	2	Mod. Nucleotide	GUANOSINE
2	ZN	-1	Ligand/Ion	ZINC ION

Asymmetric Unit (12, 12)

No.	Name	Evidence	Residues	Description
01	AC1	SOFTWARE	CYS A:139 , CYS A:142 , HIS A:147 , CYS A:152	BINDING SITE FOR RESIDUE ZN A 1
02	AC2	SOFTWARE	CYS A:161 , CYS A:164 , HIS A:169 , CYS A:174	BINDING SITE FOR RESIDUE ZN A 2
03	AC3	SOFTWARE	CYS B:139 , CYS B:142 , HIS B:147 , CYS B:152	BINDING SITE FOR RESIDUE ZN B 1
04	AC4	SOFTWARE	CYS B:161 , CYS B:164 , HIS B:169 , CYS B:174	BINDING SITE FOR RESIDUE ZN B 2
05	AC5	SOFTWARE	CYS C:139 , CYS C:142 , HIS C:147 , CYS C:152	BINDING SITE FOR RESIDUE ZN C 1
06	AC6	SOFTWARE	CYS C:161 , CYS C:164 , HIS C:169 , CYS C:174	BINDING SITE FOR RESIDUE ZN C 2
07	AC7	SOFTWARE	CYS D:139 , CYS D:142 , HIS D:147 , CYS D:152	BINDING SITE FOR RESIDUE ZN D 1
08	AC8	SOFTWARE	CYS D:161 , CYS D:164 , HIS D:169 , CYS D:174	BINDING SITE FOR RESIDUE ZN D 2
09	AC9	SOFTWARE	CYS E:139 , CYS E:142 , HIS E:147 , CYS E:152	BINDING SITE FOR RESIDUE ZN E 1
10	BC1	SOFTWARE	CYS E:161 , CYS E:164 , HIS E:169 , CYS E:174	BINDING SITE FOR RESIDUE ZN E 2
11	BC2	SOFTWARE	CYS F:139 , CYS F:142 , HIS F:147 , CYS F:152	BINDING SITE FOR RESIDUE ZN F 1
12	BC3	SOFTWARE	CYS F:161 , CYS F:164 , HIS F:169 , CYS F:174	BINDING SITE FOR RESIDUE ZN F 2

(no "SS Bond" information available for 3TRZ)

Asymmetric Unit

No.	Residues
1	Asp A:67	-	Pro A:68
2	Asp B:67	-	Pro B:68
3	Asp C:67	-	Pro C:68
4	Asp D:67	-	Pro D:68
5	Asp E:67	-	Pro E:68
6	Asp F:67	-	Pro F:68

(no "SAP(SNP)/Variant" information available for 3TRZ)

Asymmetric Unit (1, 6)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	ZF_CCHC	PS50158	Zinc finger CCHC-type profile.	LN28A_MOUSE	138-153	6	A:138-153 B:138-153 C:138-153 D:138-153 E:138-153 F:138-153

Biological Unit 1 (1, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	ZF_CCHC	PS50158	Zinc finger CCHC-type profile.	LN28A_MOUSE	138-153	2	A:138-153 B:138-153 - - - -

Biological Unit 2 (1, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	ZF_CCHC	PS50158	Zinc finger CCHC-type profile.	LN28A_MOUSE	138-153	2	- - C:138-153 D:138-153 - -

Biological Unit 3 (1, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	ZF_CCHC	PS50158	Zinc finger CCHC-type profile.	LN28A_MOUSE	138-153	2	- - - - E:138-153 F:138-153

(no "Exon" information available for 3TRZ)

Asymmetric Unit

Reformat:	Number of residues per line = ('0' or empty: single-line sequence representation)
	Number of residues per labelling interval =
	UniProt sequence: complete aligned part

Show mapping:	SCOP domains	CATH domains	Pfam domains	Secondary structure (by author)
	SAPs(SNPs)	PROSITE motifs	Exons
	(details for a mapped element are shown in a popup box when the mouse pointer rests over it)

Chain A from PDB  Type:PROTEIN  Length:130
 aligned with LN28A_MOUSE | Q8K3Y3 from UniProtKB/Swiss-Prot  Length:209

    Alignment length:145
                                    44        54        64        74        84        94       104       114       124       134       144       154       164       174     
          LN28A_MOUSE    35 PQLLHGAGICKWFNVRMGFGFLSMTARAGVALDPPVDVFVHQSKLHMEGFRSLKEGEAVEFTFKKSAKGLESIRVTGPGGVFCIGSERRPKGKNMQKRRSKGDRCYNCGGLDHHAKECKLPPQPKKCHFCQSINHMVASCPLKAQ 179
               SCOP domains ------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeeeeeeeee....eeeeeeeee..eeeeeeeeeeee.hhh............eeeeeeeee..eeeeeeeehhhhh......---------------...........hhhhh.................hhhhh..... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------ZF_CCHC         -------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3trz A  35 PQLLHGAGICKWFNVRMGFGFLSMTARAGVALDPPVDVFVHQSKLHMEGFRSLKEGEAVEFTFKKSAKGLESIRVTGPGGVFCIGSE---------------DRCYNCGGLDHHAKECKLPPQPKKCHFCQSINHMVASCPLKAQ 179
                                    44        54        64        74        84        94       104       114      |  -         -  |    144       154       164       174     
                                                                                                                121             137

Chain B from PDB  Type:PROTEIN  Length:130
 aligned with LN28A_MOUSE | Q8K3Y3 from UniProtKB/Swiss-Prot  Length:209

    Alignment length:145
                                    44        54        64        74        84        94       104       114       124       134       144       154       164       174     
          LN28A_MOUSE    35 PQLLHGAGICKWFNVRMGFGFLSMTARAGVALDPPVDVFVHQSKLHMEGFRSLKEGEAVEFTFKKSAKGLESIRVTGPGGVFCIGSERRPKGKNMQKRRSKGDRCYNCGGLDHHAKECKLPPQPKKCHFCQSINHMVASCPLKAQ 179
               SCOP domains ------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeeeeeeeee....eeeeeeeee..eeeeeeeeeeee.hhh............eeeeeeeee..eeeeeeeehhhhh......---------------...........hhhhh.................hhhhh..... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------ZF_CCHC         -------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3trz B  35 PQLLHGAGICKWFNVRMGFGFLSMTARAGVALDPPVDVFVHQSKLHMEGFRSLKEGEAVEFTFKKSAKGLESIRVTGPGGVFCIGSE---------------DRCYNCGGLDHHAKECKLPPQPKKCHFCQSINHMVASCPLKAQ 179
                                    44        54        64        74        84        94       104       114      |  -         -  |    144       154       164       174     
                                                                                                                121             137

Chain C from PDB  Type:PROTEIN  Length:130
 aligned with LN28A_MOUSE | Q8K3Y3 from UniProtKB/Swiss-Prot  Length:209

    Alignment length:145
                                    44        54        64        74        84        94       104       114       124       134       144       154       164       174     
          LN28A_MOUSE    35 PQLLHGAGICKWFNVRMGFGFLSMTARAGVALDPPVDVFVHQSKLHMEGFRSLKEGEAVEFTFKKSAKGLESIRVTGPGGVFCIGSERRPKGKNMQKRRSKGDRCYNCGGLDHHAKECKLPPQPKKCHFCQSINHMVASCPLKAQ 179
               SCOP domains ------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeeeeeeeee....eeeeeeeee..eeeeeeeeeeee.hhh............eeeeeeeee..eeeeeeeehhhhh......---------------...........hhhhh.................hhhhh..... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------ZF_CCHC         -------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3trz C  35 PQLLHGAGICKWFNVRMGFGFLSMTARAGVALDPPVDVFVHQSKLHMEGFRSLKEGEAVEFTFKKSAKGLESIRVTGPGGVFCIGSE---------------DRCYNCGGLDHHAKECKLPPQPKKCHFCQSINHMVASCPLKAQ 179
                                    44        54        64        74        84        94       104       114      |  -         -  |    144       154       164       174     
                                                                                                                121             137

Chain D from PDB  Type:PROTEIN  Length:130
 aligned with LN28A_MOUSE | Q8K3Y3 from UniProtKB/Swiss-Prot  Length:209

    Alignment length:145
                                    44        54        64        74        84        94       104       114       124       134       144       154       164       174     
          LN28A_MOUSE    35 PQLLHGAGICKWFNVRMGFGFLSMTARAGVALDPPVDVFVHQSKLHMEGFRSLKEGEAVEFTFKKSAKGLESIRVTGPGGVFCIGSERRPKGKNMQKRRSKGDRCYNCGGLDHHAKECKLPPQPKKCHFCQSINHMVASCPLKAQ 179
               SCOP domains ------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeeeeeeeee....eeeeeeeee..eeeeeeeeeeee.hhh............eeeeeeeee..eeeeeeee...........---------------...........hhhhh.................hhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------ZF_CCHC         -------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3trz D  35 PQLLHGAGICKWFNVRMGFGFLSMTARAGVALDPPVDVFVHQSKLHMEGFRSLKEGEAVEFTFKKSAKGLESIRVTGPGGVFCIGSE---------------DRCYNCGGLDHHAKECKLPPQPKKCHFCQSINHMVASCPLKAQ 179
                                    44        54        64        74        84        94       104       114      |  -         -  |    144       154       164       174     
                                                                                                                121             137

Chain E from PDB  Type:PROTEIN  Length:130
 aligned with LN28A_MOUSE | Q8K3Y3 from UniProtKB/Swiss-Prot  Length:209

    Alignment length:145
                                    44        54        64        74        84        94       104       114       124       134       144       154       164       174     
          LN28A_MOUSE    35 PQLLHGAGICKWFNVRMGFGFLSMTARAGVALDPPVDVFVHQSKLHMEGFRSLKEGEAVEFTFKKSAKGLESIRVTGPGGVFCIGSERRPKGKNMQKRRSKGDRCYNCGGLDHHAKECKLPPQPKKCHFCQSINHMVASCPLKAQ 179
               SCOP domains ------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeeeeeeeee....eeeeeeeee..eeeeeeeeeeee.hhh............eeeeeeeee..eeeeeeeehhhhh......---------------...........hhhhh.................hhhhh..... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------ZF_CCHC         -------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3trz E  35 PQLLHGAGICKWFNVRMGFGFLSMTARAGVALDPPVDVFVHQSKLHMEGFRSLKEGEAVEFTFKKSAKGLESIRVTGPGGVFCIGSE---------------DRCYNCGGLDHHAKECKLPPQPKKCHFCQSINHMVASCPLKAQ 179
                                    44        54        64        74        84        94       104       114      |  -         -  |    144       154       164       174     
                                                                                                                121             137

Chain F from PDB  Type:PROTEIN  Length:130
 aligned with LN28A_MOUSE | Q8K3Y3 from UniProtKB/Swiss-Prot  Length:209

    Alignment length:145
                                    44        54        64        74        84        94       104       114       124       134       144       154       164       174     
          LN28A_MOUSE    35 PQLLHGAGICKWFNVRMGFGFLSMTARAGVALDPPVDVFVHQSKLHMEGFRSLKEGEAVEFTFKKSAKGLESIRVTGPGGVFCIGSERRPKGKNMQKRRSKGDRCYNCGGLDHHAKECKLPPQPKKCHFCQSINHMVASCPLKAQ 179
               SCOP domains ------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeeeeeeeee....eeeeeeeee..eeeeeeeeeeee.hhh............eeeeeeeee..eeeeeeee...........---------------.................................hhhhh..... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------ZF_CCHC         -------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3trz F  35 PQLLHGAGICKWFNVRMGFGFLSMTARAGVALDPPVDVFVHQSKLHMEGFRSLKEGEAVEFTFKKSAKGLESIRVTGPGGVFCIGSE---------------DRCYNCGGLDHHAKECKLPPQPKKCHFCQSINHMVASCPLKAQ 179
                                    44        54        64        74        84        94       104       114      |  -         -  |    144       154       164       174     
                                                                                                                121             137

Chain U from PDB  Type:RNA  Length:21
                                                     
                 3trz U   1 xGGCAGGGAUUUUGCCCGGAG  21
                            |       10        20 
                            1-GMP

Chain V from PDB  Type:RNA  Length:21
                                                     
                 3trz V   1 xGGCAGGGAUUUUGCCCGGAG  21
                            |       10        20 
                            1-GMP

Chain W from PDB  Type:RNA  Length:21
                                                     
                 3trz W   1 xGGCAGGGAUUUUGCCCGGAG  21
                            |       10        20 
                            1-GMP

Chain X from PDB  Type:RNA  Length:21
                                                     
                 3trz X   1 xGGCAGGGAUUUUGCCCGGAG  21
                            |       10        20 
                            1-GMP

Chain Y from PDB  Type:RNA  Length:21
                                                     
                 3trz Y   1 xGGCAGGGAUUUUGCCCGGAG  21
                            |       10        20 
                            1-GMP

Chain Z from PDB  Type:RNA  Length:21
                                                     
                 3trz Z   1 xGGCAGGGAUUUUGCCCGGAG  21
                            |       10        20 
                            1-GMP

Legend:		→ Mismatch	(orange background)
	-	→ Gap	(green background, '-', border residues have a numbering label)
		→ Modified Residue	(blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
	x	→ Chemical Group	(purple background, 'x', labelled with number + name, e.g. ACE or NH2)
	extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '\|'

(no "SCOP Domain" information available for 3TRZ)

(no "CATH Domain" information available for 3TRZ)

(no "Pfam Domain" information available for 3TRZ)

Asymmetric Unit(hide GO term definitions)

Chain A,B,C,D,E,F (LN28A_MOUSE | Q8K3Y3)

molecular function
	GO:0003677	DNA binding	Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).
	GO:0003723	RNA binding	Interacting selectively and non-covalently with an RNA molecule or a portion thereof.
	GO:0003729	mRNA binding	Interacting selectively and non-covalently with messenger RNA (mRNA), an intermediate molecule between DNA and protein. mRNA includes UTR and coding sequences, but does not contain introns.
	GO:0046872	metal ion binding	Interacting selectively and non-covalently with any metal ion.
	GO:0035198	miRNA binding	Interacting selectively and non-covalently with a microRNA, a 21-23 nucleotide RNA that is processed from a stem-loop RNA precursor (pre-miRNA) that is encoded within plant and animal genomes.
	GO:0003676	nucleic acid binding	Interacting selectively and non-covalently with any nucleic acid.
	GO:0031369	translation initiation factor binding	Interacting selectively and non-covalently with a translation initiation factor, any polypeptide factor involved in the initiation of ribosome-mediated translation.
	GO:0008270	zinc ion binding	Interacting selectively and non-covalently with zinc (Zn) ions.
biological process
	GO:0031123	RNA 3'-end processing	Any process involved in forming the mature 3' end of an RNA molecule.
	GO:0031047	gene silencing by RNA	Any process in which RNA molecules inactivate expression of target genes.
	GO:0007281	germ cell development	The process whose specific outcome is the progression of an immature germ cell over time, from its formation to the mature structure (gamete). A germ cell is any reproductive cell in a multicellular organism.
	GO:0010587	miRNA catabolic process	The chemical reactions and pathways resulting in the breakdown of miRNA, microRNA, a class of single-stranded RNA molecules of about 21-23 nucleotides in length, which regulates gene expression.
	GO:0010586	miRNA metabolic process	The chemical reactions and pathways involving miRNA, microRNA, a class of single-stranded RNA molecules of about 21-23 nucleotides in length, which regulates gene expression.
	GO:0045686	negative regulation of glial cell differentiation	Any process that stops, prevents, or reduces the frequency, rate or extent of glia cell differentiation.
	GO:1901724	positive regulation of cell proliferation involved in kidney development	Any process that activates or increases the frequency, rate or extent of cell proliferation involved in kidney development.
	GO:0045666	positive regulation of neuron differentiation	Any process that activates or increases the frequency, rate or extent of neuron differentiation.
	GO:0045727	positive regulation of translation	Any process that activates or increases the frequency, rate or extent of the chemical reactions and pathways resulting in the formation of proteins by the translation of mRNA or circRNA.
	GO:0031054	pre-miRNA processing	Any process involved in the conversion of a pre-microRNA transcript into a mature microRNA molecule.
	GO:0060964	regulation of gene silencing by miRNA	Any process that modulates the rate, frequency, or extent of the downregulation of gene expression through the action of microRNAs (miRNAs), endogenous 21-24 nucleotide small RNAs processed from stem-loop RNA precursors (pre-miRNAs). Once incorporated into a RNA-induced silencing complex (RISC), miRNAs can downregulate gene expression by either of two posttranscriptional mechanisms: mRNA cleavage or translational repression.
	GO:0006355	regulation of transcription, DNA-templated	Any process that modulates the frequency, rate or extent of cellular DNA-templated transcription.
	GO:0048863	stem cell differentiation	The process in which a relatively unspecialized cell acquires specialized features of a stem cell. A stem cell is a cell that retains the ability to divide and proliferate throughout life to provide progenitor cells that can differentiate into specialized cells.
	GO:0019827	stem cell population maintenance	The process by which an organism or tissue maintains a population of stem cells of a single type. This can be achieved by a number of mechanisms: stem cell asymmetric division maintains stem cell numbers; stem cell symmetric division increases them; maintenance of a stem cell niche maintains the conditions for commitment to the stem cell fate for some types of stem cell; stem cells may arise de novo from other cell types.
cellular component
	GO:0000932	P-body	A focus in the cytoplasm where mRNAs may become inactivated by decapping or some other mechanism. Protein and RNA localized to these foci are involved in mRNA degradation, nonsense-mediated mRNA decay (NMD), translational repression, and RNA-mediated gene silencing.
	GO:0005737	cytoplasm	All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
	GO:0010494	cytoplasmic stress granule	A dense aggregation in the cytosol composed of proteins and RNAs that appear when the cell is under stress.
	GO:0005730	nucleolus	A small, dense body one or more of which are present in the nucleus of eukaryotic cells. It is rich in RNA and protein, is not bounded by a limiting membrane, and is not seen during mitosis. Its prime function is the transcription of the nucleolar DNA into 45S ribosomal-precursor RNA, the processing of this RNA into 5.8S, 18S, and 28S components of ribosomal RNA, and the association of these components with 5S RNA and proteins synthesized outside the nucleolus. This association results in the formation of ribonucleoprotein precursors; these pass into the cytoplasm and mature into the 40S and 60S subunits of the ribosome.
	GO:0005634	nucleus	A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.

Asymmetric Unit
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	Ligands, Modified Residues, Ions
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	Cis Peptide Bonds
		Asp A:67 - Pro A:68	[ RasMol ]
		Asp B:67 - Pro B:68	[ RasMol ]
		Asp C:67 - Pro C:68	[ RasMol ]
		Asp D:67 - Pro D:68	[ RasMol ]
		Asp E:67 - Pro E:68	[ RasMol ]
		Asp F:67 - Pro F:68	[ RasMol ]

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		Biological Unit 1	[ Jena3D ]
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	3trz
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	LN28A_MOUSE \| Q8K3Y3
		Protein Disorder Prediction	:	DisEMBL \| FoldIndex \| GLOBPLOT (for more information see DisProt)

UniProtKB/Swiss-Prot
	LN28A_MOUSE \| Q8K3Y3	:	3ts0 3ts2

(no "Related Entries Specified in the PDB File" available for 3TRZ)

Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (2, 18)

Sites (12, 12)

SS Bonds (0, 0)

Cis Peptide Bonds (6, 6)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (1, 6)

Exons (0, 0)

Sequences/Alignments

Classification and Annotation

SCOP Domains (0, 0)

CATH Domains (0, 0)

Pfam Domains (0, 0)

Gene Ontology (27, 27)

Visualization

Interactive Views

Still Images

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Databases

Analysis Tools

Related Entries

Entries Sharing at Least One Protein Chain (UniProt ID)

Related Entries Specified in the PDB File