UniProt Accession

 GRPE2_HUMAN; Q8TAA5; Q49AJ6 

Genbank Protein ID

 AK074293; BC036678; BC070090 

Genbank Nucleotide ID

 BAB85040.1; AAH36678.1; AAH70090.1 

Protein Name

 GrpE protein homolog 2, mitochondrial 

Protein Synonyms/Alias

 Mt-GrpE#2 

Gene Name

 GRPEL2 

Gene Synonyms/Alias

  

Created Date

 July 27, 2013 

Organism

 Homo sapiens (Human) 

NCBI Taxa ID

 9606 

Lysine Modification

Position	Peptide	Type	References
142	DQKLTLEKVFRGLLL	acetylation	[1, 2, 3]

Reference

 [1] Lysine acetylation targets protein complexes and co-regulates major cellular functions.
 Choudhary C, Kumar C, Gnad F, Nielsen ML, Rehman M, Walther TC, Olsen JV, Mann M.
 Science. 2009 Aug 14;325(5942):834-40. [PMID: 19608861]
 [2] Proteomic investigations reveal a role for RNA processing factor THRAP3 in the DNA damage response.
 Beli P, Lukashchuk N, Wagner SA, Weinert BT, Olsen JV, Baskcomb L, Mann M, Jackson SP, Choudhary C.
 Mol Cell. 2012 Apr 27;46(2):212-25. [PMID: 22424773]
 [3] Proteomic investigations of lysine acetylation identify diverse substrates of mitochondrial deacetylase sirt3.
 Sol EM, Wagner SA, Weinert BT, Kumar A, Kim HS, Deng CX, Choudhary C.
 PLoS One. 2012;7(12):e50545. [PMID: 23236377] 

Functional Description

 Essential component of the PAM complex, a complex required for the translocation of transit peptide-containing proteins from the inner membrane into the mitochondrial matrix in an ATP-dependent manner. Seems to control the nucleotide-dependent binding of mitochondrial HSP70 to substrate proteins. Stimulates ATPase activity of mt-HSP70. May also serve to modulate the interconversion of oligomeric (inactive) and monomeric (active) forms of mt-HSP70 (By similarity). 

Sequence Annotation

 MOD_RES 142 142 N6-acetyllysine.  

Keyword

 Acetylation; Chaperone; Complete proteome; Mitochondrion; Reference proteome; Transit peptide. 

Sequence Source

 UniProt (SWISSPROT/TrEMBL); GenBank; EMBL 

Protein Length

 225 AA 

Protein Sequence

Gene Ontology

 GO:0005743; C:mitochondrial inner membrane; IEA:Compara.
 GO:0005759; C:mitochondrial matrix; IEA:UniProtKB-SubCell.
 GO:0005739; C:mitochondrion; IDA:HPA.
 GO:0000774; F:adenyl-nucleotide exchange factor activity; IEA:InterPro.
 GO:0044267; P:cellular protein metabolic process; TAS:Reactome.
 GO:0006457; P:protein folding; IEA:InterPro.
 GO:0006626; P:protein targeting to mitochondrion; TAS:Reactome. 

Interpro

 IPR000740; GrpE.
 IPR013805; GrpE_coiled_coil.
 IPR009012; GrpE_head. 

Pfam

 PF01025; GrpE 

SMART

  

PROSITE

 PS01071; GRPE 

PRINTS

 PR00773; GRPEPROTEIN.