Detailed entry information

Protein Information (annotations from UniProt)

Database IDHIV0000341
UniProt IDQ9BVV7
Primary gene name(s)TIMM21
Synonym gene name(s)C18orf55, TIM21
Protein nameMitochondrial import inner membrane translocase subunit Tim21
Protein functionParticipates in the translocation of transit peptide-containing proteins across the mitochondrial inner membrane. Also required for assembly of mitochondrial respiratory chain complex I and complex IV as component of the MITRAC, mitochondrial translation regulation assembly intermediate of cytochrome c oxidase complex complex. Probably shuttles between the presequence translocase and respiratory-chain assembly intermediates in a process that promotes incorporation of early nuclear-encoded subunits into these complexes. {ECO:0000269|PubMed:23260140}.
Subcellular locationMitochondrion membrane {ECO:0000305};
Single-pass membrane protein {ECO:0000305}.
ECO codeClick here for more information.
Amino acid sequence
FASTA format: Q9BVV7
Gene Ontology
(Biological Process)
Complete annatation
mitochondrial respiratory chain complex I assembly [GO:0032981];
mitochondrial respiratory chain complex IV assembly [GO:0033617];
protein import into mitochondrial matrix [GO:0030150]
Gene Ontology
(Molecular Function)
Complete annatation
Gene Ontology
(Cellular Component)
Complete annatation
integral component of membrane [GO:0016021];
mitochondrial inner membrane presequence translocase complex [GO:0005744]
Protein-protein interaction118859
Phylogenetic treeQ9BVV7
HIV replication factor status Zhou et al., Cell. Host. Microbe., 2008
Brass et al., Science, 2008
Smith et al., J. Immunol, 2010
gene status
Lu et al., J. Virol., 2011
      Folds changes 8h: unknown; Folds changes 16h: unknown; Tested: unknown;
Schoggins JW and Rice CM, Curr. Opin. Virol., 2011
      Targeted viruses: unknown
      Viral life cycle: unknown
      Mechanism related to antiviral activity: unknown
Anti-viral restriction factor Liu et al., Retrovirology, 2011
      unknown (Triplicates)

Gene Expression Profile       top

            Up-regulated;            Down-regulated

For brief introduction to each study, please go to the help page.

Gene expression during HIV latency

(1). Mohammadi et al., PLoS Pathog., 2014

Differentially expressed transcripts (Pairwise) during latency and subsequent viral reactivation using several agents - Primary CD4+ T-cell based model

DMSO: Dimethyl suloxyde (negative control) - 0.0033% final
SAHA: Vorinostat (Histone deacetylase inhibitor) - 0.5 μM
CD3: TCR Stimulation by IL-2+ antiCD3/anti-CD28 antibodies
IL7: Interleukin-7 based stimulation
DISU: Disulfiram (alcohol dehydrogenase inhibitor) - 0.5 μM
AZA: 5-azacytidine (AZA; DNA methylation inhibitor) - 1 μM
Experimental Condition Log2 Fold Change P value Adjusted P value
AZA vs. CD31.617941550075391.67072710555161e-061.23437249680754e-05
AZA vs. DISU0.1018625095879540.6909240672363110.968313969505284
AZA vs. IL70.3878305766471870.04871348726484280.647494174200155
AZA vs. SAHA-0.2866579124939960.2487370886057050.619336450882458
DISU vs. CD3-1.528584233874644.01013490549662e-050.000254414030157643
DISU vs. IL70.277216673916640.2762122384434110.663569640563255
DISU vs. SAHA-0.3874902611365980.1886398811333550.555937673496237
DMSO vs. AZA0.07127216260569110.6808043424053721
DMSO vs. CD3-1.555887481392992.27958621279445e-061.51486397422798e-05
DMSO vs. DISU-0.03190660265285030.8971868186846350.988283279918411
DMSO vs. IL70.323495909368430.07862967073201590.527868306992189
DMSO vs. SAHA-0.3656934326153050.1275702018194280.426757828745984
HIV vs. Mock in Activation-0.1432090289053670.8180470122162090.999983755607037
HIV vs. Mock in Latency-0.05594470047813020.7428661457099480.999834320637052
IL7 vs. CD3-1.221452353756830.0001911140954964360.00102587705178696
SAHA vs. CD3-1.929301141648551.58763101887338e-071.57095203246368e-06
SAHA vs. IL7-0.6780891156095980.006266859118001840.045317615148369
(2). Iglesias-Ussel et al., J. Virol., 2013

Up and Downregulated transcripts during Latency (Latently infected CD4+ T cells vs Uninfected)- Primary CD4+Tcell based model
Log2 Fold Change P Value
unknown unknown

Gene expression during HIV infection and replication

(1). Imbeault et al., PloS Pathog., 2012

Transcriptomic profiling of HIV-1 infected CD4+ T cells - Primary CD4+ T cells
Experiment type Log2 Fold Change P Value Adjusted P Value
Infected vs. Mock unknown unknown unknown
Infected vs. Bystander unknown unknown unknown
(2). Lefebvre et al., J. Virol., 2011

Transcriptome analysis of T-cell line (Sup T1)
Log2 Fold Change unknown
(3). Li et al., J. Immunol., 2013

Lymphatic tissue
Acute Fold Change Acute P Value Asymt Fold Change Asypt P Value AIDS Fold Change AIDS P Value
unknown unknown unknown unknown unknown unknown
(4). Chang et al., MBio., 2011

Transcriptome analysis of T-cell line (Sup T1)

Derived from Sherrill-Mix et al., BMC Retrovirol., 2015 cross validation
Up-regulated (True) FALSE
(5). Sherrill-Mix et al., BMC Retrovirol., 2015

Deep RNA-seq analysis of primary human T cell infected with low passage HIV isolate HIV89.6 - Primary CD4+ T cell based
Test Status Log2 Fold Change P Value
OK 0.520802 0.000305467
(6). Rotger et al., PLoS Pathog., 2010

Genome-wide mRNA expression of CD4+ T cells from HIV-infected patient
(Genes differentially expressed (at adjusted p<0.01) according to the empirical Bayes approach)
Log2 Fold Change P Value
unknown unknown

Proteomic/Transcriptomics studies indicating differentially expressed genes mediated by HIV

(1). Greenwood et al., Elife, 2016

Activated (CD3/CD28) Primary human CD4+ T cells infected with pNL4-3-dE-EGFP. The table shows the complete (unfiltered) TMT (tandem mass tag)-based proteomic time course dataset
6 h 24 h 48 h 72 h RTi
0.996 1.047 0.974 0.872 0.931
(2). Navare et al., Virology, 2012

SUP-T1 cell line
FC-4hpi P-value FC-8hpi P-value FC-20hpi P-value Category
unknown unknown unknown unknown unknown unknown unknown
(3). Hyrcza et al., J. Virolo., 2007

Primary human CD4+ and CD8+ T Cells
Affymetrix Prob ID Fold Change In CD8? Category
unknown unknown unknown unknown

Protein Overview       top

Drug-protein Interaction       (annotations from DrugBank)      top

not found

Protein Secondary Structure       (annotations from PDB)      top

not found

HIV-1 Interaction       (annotations from NCBI HIV-1 Interaction Database)      top

not found

Metabolic/Signalling Pathway       (annotations from KEGG database)      top

Pathway Accession Number Description
not found