Reviewed, UniProtKB/Swiss-Prot Q3MA53 (MIAA_ANAVT)

Names and origin

Protein names

Recommended name:
    tRNA Delta(2)-isopentenylpyrophosphate transferase
      Short name=IPP transferase
    EC=2.5.1.8
Alternative name(s):
    Isopentenyl-diphosphate:tRNA isopentenyltransferase
      Short name=IPTase
      Short name=IPPT
    Dimethylallyl diphosphate:tRNA dimethylallyltransferase
      Short name=DMAPP:tRNA dimethylallyltransferase
      Short name=DMATase

Gene names

Name:	miaA
Ordered Locus Names:	Ava_2518

Organism

Anabaena variabilis (strain ATCC 29413 / PCC 7937) [Complete proteome] [HAMAP]

Taxonomic identifier

240292 [NCBI]

Taxonomic lineage

Bacteria › Cyanobacteria › Nostocales › Nostocaceae › Anabaena

Protein attributes

Sequence length	294 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is not processed.
Protein existence	Inferred from homology.

General annotation (Comments)

Function	Catalyzes the transfer of a dimethylallyl group onto the adenine at position 37 in tRNAs that read codons beginning with uridine, leading to the formation of N6-(dimethylallyl)adenosine (i6A) By similarity.
Catalytic activity	Isopentenyl diphosphate + tRNA = diphosphate + tRNA containing 6-isopentenyladenosine. HAMAP MF_00185
Cofactor	Magnesium By similarity.
Subunit structure	Monomer By similarity.
Sequence similarities	Belongs to the IPP transferase family.

Ontologies

Keywords
Biological process	tRNA processing
Ligand	ATP-binding Magnesium Nucleotide-binding
Molecular function	Nucleotidyltransferase Transferase
Technical term	Complete proteome
Gene Ontology (GO)
Biological process	tRNA processing Inferred from electronic annotation. Source: HAMAP
Molecular function	ATP binding Inferred from electronic annotation. Source: HAMAP nucleotidyltransferase activity Inferred from electronic annotation. Source: UniProtKB-KW tRNA isopentenyltransferase activity Inferred from electronic annotation. Source: HAMAP
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 294	294	tRNA Delta(2)-isopentenylpyrophosphate transferase		PRO_1000020560
Regions
	Nucleotide binding	9 – 16	8	ATP Potential
	Region	11 – 16	6	Substrate binding By similarity
	Region	34 – 37	4	Interaction with substrate tRNA By similarity
Sites
	Site	98	1	Interaction with substrate tRNA By similarity

Sequences

	Sequence		Length	Mass (Da)
	Q3MA53-1 [UniParc]. Last modified October 25, 2005. Version 1. Checksum: CB930651D840B17A	FASTA	294	32,947
	10 20 30 40 50 60 MTKLIVICGA TATGKSGLAL NLAMRLGSVI LSADSRQVYR EFDIGTAKPT LAEQKAVPHY 70 80 90 100 110 120 LIDICTPRET MTVADYQEQA QALINSLPVS PLLLVGGTGL YIRSIVQGMK IPRVAPNYEL 130 140 150 160 170 180 RSQLESLGQT TLYGILQQVD PVAAQKIHPH DPVRTLRAVE VFYVTGIPIS AQQGENPPDY 190 200 210 220 230 240 PILQIGLDCE MERLSERIHK RTEQMIADGL VGEVEYLCQK YGADLPLLNT LGYQEIKQYL 250 260 270 280 290 AGEISLEAAK ELIVLHTRQF AKRQRTWFRA YPQIEWFNAD DADLLDIVWQ RIQQ

References

[1]

"Complete sequence of Anabaena variabilis ATCC 29413." Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina T., Hammon N., Israni S., Pitluck S., Saunders E.H., Schmutz J., Larimer F., Land M., Kyrpides N., Mavrommatis K., Richardson P. Submitted (SEP-2005) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].

Cross-references

Sequence databases
EMBLGenBankDDBJ	CP000117 Genomic DNA. Translation: ABA22133.1.
RefSeq	YP_323028.1.
3D structure databases
ModBase	Search...
Genome annotation databases
GeneID	3682616.
GenomeReviews	Gene locus Ava_2518 in contig CP000117_GR.
KEGG	ava:Ava_2518.
NMPDR	fig|240292.3.peg.2000.
Organism-specific databases
CMR	Search...
Phylogenomic databases
HOGENOM	Q3MA53.
OMA	Q3MA53. VNADSMQ.
Enzyme and pathway databases
BioCyc	AVAR240292:AVA_2518-MON.
Family and domain databases
HAMAP	MF_00185. [Tree]
InterPro	IPR002627. IPPT. IPR018022. tRNA_delta_PyrP_Trfase. [Graphical view]
PANTHER	PTHR11088. IPPT. 1 hit.
Pfam	PF01715. IPPT. 1 hit. [Graphical view]
ProDom	PD004674. IPPT. 1 hit. PD005388. IPPtrans_like. 1 hit. [Graphical view] [Entries sharing at least one domain]
TIGRFAMs	TIGR00174. miaA. 1 hit.
ProtoNet	Search...

Entry information

Entry name

MIAA_ANAVT

Accession

Primary (citable) accession number: Q3MA53

Entry history

Integrated into UniProtKB/Swiss-Prot:	January 15, 2008
Last sequence update:	October 25, 2005
Last modified:	June 16, 2009
This is version 22 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

HAMAP (High-quality Automated and Manual Annotation of microbial Proteomes)