Reviewed, UniProtKB/Swiss-Prot A5U5C5 (AHPD_MYCTA)

Names and origin

Protein names

Recommended name:
    Alkyl hydroperoxide reductase ahpD
    EC=1.11.1.15
Alternative name(s):
    Alkylhydroperoxidase ahpD

Gene names

Name:	ahpD
Ordered Locus Names:	MRA_2456

Organism

Mycobacterium tuberculosis (strain ATCC 25177 / H37Ra) [Complete proteome] [HAMAP]

Taxonomic identifier

419947 [NCBI]

Taxonomic lineage

Bacteria › Actinobacteria › Actinobacteridae › Actinomycetales › Corynebacterineae › Mycobacteriaceae › Mycobacterium › Mycobacterium tuberculosis complex

Protein attributes

Sequence length	177 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is not processed.
Protein existence	Inferred from homology.

General annotation (Comments)

Function	Antioxidant protein with alkyl hydroperoxidase activity. Required for the reduction of the ahpC active site cysteine residues and for the regeneration of the ahpC enzyme activity By similarity.
Catalytic activity	2 R'-SH + ROOH = R'-S-S-R' + H2O + ROH. HAMAP MF_01676
Subunit structure	Homotrimer By similarity.
Sequence similarities	Belongs to the ahpD family.

Ontologies

Keywords
Domain	Redox-active center
Molecular function	Antioxidant Oxidoreductase Peroxidase
PTM	Disulfide bond
Technical term	Complete proteome
Gene Ontology (GO)
Biological process	oxidation reduction Inferred from electronic annotation. Source: UniProtKB-KW
Molecular function	alkyl hydroperoxide reductase activity Inferred from electronic annotation. Source: HAMAP peroxiredoxin activity Inferred from electronic annotation. Source: EC
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 177	177	Alkyl hydroperoxide reductase ahpD HAMAP MF_01676		PRO_0000359500
Sites
	Active site	130	1	Proton donor By similarity
	Active site	133	1	Cysteine sulfenic acid (-SOH) intermediate By similarity
Amino acid modifications
	Disulfide bond	130 ↔ 133		Alternate By similarity
	Disulfide bond	133		Interchain (with ahpC); in linked form By similarity

Sequences

	Sequence		Length	Mass (Da)
	A5U5C5-1 [UniParc]. Last modified July 10, 2007. Version 1. Checksum: B7DD28AA9BD9B24C	FASTA	177	18,781
	10 20 30 40 50 60 MSIEKLKAAL PEYAKDIKLN LSSITRSSVL DQEQLWGTLL ASAAATRNPQ VLADIGAEAT 70 80 90 100 110 120 DHLSAAARHA ALGAAAIMGM NNVFYRGRGF LEGRYDDLRP GLRMNIIANP GIPKANFELW 130 140 150 160 170 SFAVSAINGC SHCLVAHEHT LRTVGVDREA IFEALKAAAI VSGVAQALAT IEALSPS

References

[1]

"Complete genomic sequence of Mycobacterium tuberculosis strain H37Ra, a non-pathogenic variant closely related to the well-characterized pathogenic strain H37Rv." Wang S.Y., Zheng H.J., Lv L.D., Wang B.F., Zhang X.L., Pu S.Y., Zhu G.F., Wang H.H., Zhao G.P., Zhang Y. Submitted (MAR-2007) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].

Cross-references

Sequence databases
EMBLGenBankDDBJ	CP000611 Genomic DNA. Translation: ABQ74225.1.
RefSeq	YP_001283787.1.
3D structure databases
ModBase	Search...
Protein-protein interaction databases
STRING	A5U5C5.
Genome annotation databases
GeneID	5214582.
GenomeReviews	Gene locus MRA_2456 in contig CP000611_GR.
KEGG	mra:MRA_2456.
Organism-specific databases
CMR	Search...
Phylogenomic databases
OMA	MAMNNVY.
Family and domain databases
HAMAP	MF_01676. [Tree]
InterPro	IPR004674. AhpD. IPR004675. AhpD_core. IPR003779. CMD. [Graphical view]
Pfam	PF02627. CMD. 1 hit. [Graphical view]
TIGRFAMs	TIGR00777. ahpD. 1 hit. TIGR00778. ahpD_dom. 1 hit.
ProtoNet	Search...

Entry information

Entry name

AHPD_MYCTA

Accession

Primary (citable) accession number: A5U5C5

Entry history

Integrated into UniProtKB/Swiss-Prot:	January 20, 2009
Last sequence update:	July 10, 2007
Last modified:	November 3, 2009
This is version 16 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)