Rv3439c (-)

Current annotations:
- TBCAP: (community-based annotations - see table at bottom of page)
- TBDB: hypothetical protein
- REFSEQ: hypothetical protein
- PATRIC: Conserved alanine and proline rich protein
- TUBERCULIST: Conserved hypothetical alanine and proline rich protein
- NCBI: Conserved hypothetical alanine and proline rich protein
- updated information (H37Rv4):
  - gene name: ppr2
  - function: interacts with rip1?
  - reference: Schneider (2013) PMID: 24218594
Type: Not Target
Start: 3858259
End: 3859662
Operon:

Trans-membrane region:
Role: V - Conserved hypotheticals
GO terms:
- No terms assigned.
Reaction(s) (based on iSM810 metabolic model):
Gene Expression Profile (Transcriptional Responses to Drugs; Boshoff et al, 2004)
Gene Modules extracted from cluster analysis of 249 transcriptomic datasets using ICA
Orthologs among selected mycobacteria
Protein structure:
Search for Homologs in PDB
Top 10 Homologs in PDB (as of Nov 2020): (none with >35% aa id)
Links to additional information on Rv3439c:
- TBDB (updated)
- Phyre2 structure prediction, model: final.casp.pdb (from Mao et al, 2013)
- UniProt
- AlphaFold model
- Vulnerability = 0.942 (from Jeremy Rock's lab)
- KEGG - nucleotide and amino acid sequences of gene
- Mycobrowser
- PATRIC
- BioCyc
- Systems Biology

Amino Acid Sequence

VADRLNVAERLAEGRPAAEHTQSYVRACHLVGYQHPDLTAYPAQIHDWYGSEDGLDLHALDADCAQLRAAASVLMEALRMERSQVAVLAAAWTGSGADAA
VHFVQRHCETGNSVVTEVRAAAQRCESLRDNLWQLVDSKVATAIAIDERALAQRPAWLAAAEALTTEGADRPTAVEVVRQQIQPYVDDDVRNDWLTTMRS
TTAGVAASYDAVTDQLASAPRAHFEIPDDLGPGRQPSPASVPAQPSATAAITPAAALPPPDPVPAVTSRPVTPSDFGSAPGDGSATPAGVGSAGGFGDAG
GTGGLGGFAGLAGLANRIVDAVDSLLGSVAEQLGDPLAADNPPGAVDPFAEDAADNADDGDDAHPEEADEAAEPKEATEPDEADEVDDADESVPAERAQD
VAEEATLPPVAEPPPPAAPPVAEPPPPVAAPAPPGAPEPANGPSPEALSEGATPCEIAADELPQAGP

(Nucleotide sequence available on KEGG)

Additional Information

Ppr2
interacts with Rip1?
(Schneider et al, 2013, PNAS) http://www.ncbi.nlm.nih.gov/pubmed/24218594

Analysis of Positive Selection in Clinical Isolates new

Analysis of dN/dS (omega) in two collections of Mtb clinical isolates using GenomegaMap (Window model) (see description of methods)
- Moldova: 2,057 clinical isolates
- global set: 5,195 clinical isolates from 15 other countries
In the omega plots, the black line shows the mean estimate of omega (dN/dS) at each codon, and the blue lines are the bounds for the 95% credible interval (95%CI, from MCMC sampling).
A gene is under significant positive selection if the lower-bound of the 95%CI of omega (lower blue line) exceeds 1.0 at any codon.

	Moldova (2,057)	global set (5,195)
under significant positive selection?	NO	NO
omega peak height (95%CI lower bound)	2.04 (0.49)	1.29 (0.6)
codons under selection
omega plots
genetic variants*	link	link
statistics at each codon	link	link

* example format for variants: "D27 (GAC): D27H (CAC,11)" means "Asp27 (native codon GAC) mutated to His (codon CAC) in 11 isolates"

ESSENTIALITY

MtbTnDB - interactive tool for exploring a database of published TnSeq datasets for Mtb

TnSeqCorr - genes with correlated TnSeq profiles across ~100 conditions

Rv3439c/-, gene len: 1403 bp, num TA sites: 10

condition	dataset	call	medium	method	notes
in-vitro	DeJesus 2017 mBio	growth advantage	7H9	HMM	fully saturated, 14 TnSeq libraries combined
in-vitro	Sassetti 2003 Mol Micro	non-essential	7H9	TRASH	essential if hybridization ratio<0.2
in-vivo (mice)	Sassetti 2003 PNAS	non-essential	BL6 mice	TRASH	essential if hybridization ratio<0.4, min over 4 timepoints (1-8 weeks)
in-vitro (glycerol)	Griffin 2011 PPath	non-essential	M9 minimal+glycerol	Gumbel	2 replicates; Padj<0.05
in-vitro (cholesterol)	Griffin 2011 PPath	non-essential	M9 minimal+cholesterol	Gumbel	3 replicates; Padj<0.05
differentially essential in cholesterol	Griffin 2011 PPath	NO (LFC=-0.58)	cholesterol vs glycerol	resampling-SR	YES if Padj<0.05, else not significant; LFC<0 means less insertions/more essential in cholesterol
in-vitro	Smith 2022 eLife	non-essential	7H9	HMM	6 replicates (raw data in Subramaniam 2017, PMID 31752678)
in-vivo (mice)	Smith 2022 eLife	non-essential	BL6 mice	HMM	6 replicates (raw data in Subramaniam 2017, PMID 31752678)
differentially essential in mice	Smith 2022 eLife	NO (LFC=0.151)	in-vivo vs in-vitro	ZINB	YES if Padj<0.05, else not significant; LFC<0 means less insertions/more essential in mice
in-vitro (minimal)	Minato 2019 mSys	non-essential	minimal medium	HMM
in-vitro (YM rich medium)	Minato 2019 mSys	non-essential	YM rich medium	HMM	7H9 supplemented with ~20 metabolites (amino acids, vitamins)
differentially essential in YM rich medium	Minato 2019 mSys	NO (LFC=-0.23)	YM rich vs minimal medium	resampling

TnSeq Data No data currently available.

No TnSeq data currently available for this Target.

RNASeq Data No data currently available.

No RNA-Seq data currently available for this Target.

Metabolomic Profiles No data currently available.

No Metabolomic data currently available for this Target.

Proteomic Data No data currently available.

No Proteomic data currently available for this Target.

Regulatory Relationships from Systems Biology

BioCyc

Gene interactions based on ChIPSeq and Transcription Factor Over-Expression (TFOE) (Systems Biology)

NOTE: Green edges represent the connected genes being classified as differentially essential as a result of the middle gene being knocked out. These interactions are inferred based on RNASeq.

Interactions based on ChIPSeq data

Binds To:
- No bindings to other targets were found.
Bound By:

Interactions based on ChIPSeq data (Minch et al. 2014)

Binds To:
- No bindings to other targets were found.
Bound By:
- Rv0023 (-) (Upstream of operon)
- Rv1816 (-) (Upstream of operon)
- Rv3249c (-) (Upstream of operon)

Interactions based on TFOE data (Rustad et al. 2014)

Upregulates:
- Does not upregulate other genes.
Upregulated by:
- Rv0022c (whiB5)
- Rv3911 (sigM)
Downregulates:
- Does not downregulate other genes.
Downregulated by:
- Rv0078 (-)
- Rv3223c (sigH)

Property	Value	Creator	Evidence	PMID	Comment
Citation	Characterization of the Mycobacterium tuberculosis sigma factor SigM by assessment of virulence and identification of SigM-dependent genes. N. Agarwal, SC. Woolwine et al. Infect. Immun. 2007	ranjeetsingh	IEP	17088352	Co-expression(Functional Linkage)
Interaction	Regulatory Rv3911	ranjeetsingh	IEP		Co-expression(Functional Linkage) N. Agarwal, SC. Woolwine et al. Characterization of the Mycobacterium tuberculosis sigma factor SigM by assessment of virulence and identification of SigM-dependent genes. Infect. Immun. 2007
Interaction	RegulatedBy Rv3911	yamir.moreno	IEP		Microarrays. mRNA levels of regulated element measured and compared between wild-type and trans-element mutation (knockout, over expression etc.) performed by using microarray (or macroarray) experiments.. S. Raman, X. Puyang et al. Mycobacterium tuberculosis SigM positively regulates Esx secreted protein and nonribosomal peptide synthetase genes and down regulates virulence-associated surface lipid synthesis. J. Bacteriol. 2006
Interaction	RegulatedBy Rv3911	yamir.moreno	IEP		Microarrays. mRNA levels of regulated element measured and compared between wild-type and trans-element mutation (knockout, over expression etc.) performed by using microarray (or macroarray) experiments.. N. Agarwal, SC. Woolwine et al. Characterization of the Mycobacterium tuberculosis sigma factor SigM by assessment of virulence and identification of SigM-dependent genes. Infect. Immun. 2007

TB Genome Annotation Portal