Search TCDB: (?)
TCDB is operated by the Saier Lab Bioinformatics Group
« See all members of the family


3.A.2.2.5
H -translocating V-type ATPase (Dettmer et al., 2006). The mung bean (Phaseolus aureus) subunits a and c (c' and c") alone catalyzes passive channel-mediated proton flux, but the a,c,d complex does not (Ouyang et al., 2008).  A 4 TMS c-subunit of Tamarix hispida (onion), almost identical to the c-subunit of the A. thaliana homologue, plays a stress tolerance role in response to salt, drought, UV, oxidation, heat, cold, and heavy metals (Gao et al. 2011). The VHA-H subunit is up-regluated upon high salt stress conditions (Yang et al. 2018). The VHAc`1 protein seems to play an important role in plant stress tolerance (Wang et al. 2020).

Accession Number:Q9SZN1
Protein Name:V-type proton ATPase subunit B2
Length:487
Molecular Weight:54305.00
Species:Arabidopsis thaliana (Mouse-ear cress) [3702]
Location1 / Topology2 / Orientation3: Vacuole membrane1 / Peripheral membrane protein2
Substrate hydron

Cross database links:

Entrez Gene ID: 830008   
Pfam: PF00006    PF00306    PF02874   
KEGG: ath:AT4G38510   

Gene Ontology

GO:0009941 C:chloroplast envelope
GO:0005886 C:plasma membrane
GO:0033180 C:proton-transporting V-type ATPase, V1 domain
GO:0005774 C:vacuolar membrane
GO:0046933 F:hydrogen ion transporting ATP synthase activity, rotational mechanism
GO:0046961 F:proton-transporting ATPase activity, rotational mechanism
GO:0015986 P:ATP synthesis coupled proton transport

References (4)

[1] “Sequence and analysis of chromosome 4 of the plant Arabidopsis thaliana.”  Mayer K.F.X.et.al.   10617198
[2] “Empirical analysis of transcriptional activity in the Arabidopsis genome.”  Yamada K.et.al.   14593172
[3] “Analysis of multiple occurrences of alternative splicing events in Arabidopsis thaliana using novel sequenced full-length cDNAs.”  Iida K.et.al.   19423640
[4] “A simple nomenclature for a complex proton pump: VHA genes encode the vacuolar H(+)-ATPase.”  Sze H.et.al.   11950611

External Searches:

Analyze:

Predict TMSs (Predict number of transmembrane segments)
Window Size: Angle:  
FASTA formatted sequence 
1:	MGAAENNLEM EGTLEIGMEY RTVSGVAGPL VILEKVKGPK YQEIVNIRLG DGTTRRGQVL 
61:	EVDGEKAVVQ VFEGTSGIDN KYTTVQFTGE VLKTPVSLDM LGRIFNGSGK PIDNGPPILP 
121:	EAYLDISGSS INPSERTYPE EMIQTGISTI DVMNSIARGQ KIPLFSAAGL PHNEIAAQIC 
181:	RQAGLVKRLE KSDNLLEHQE DDNFAIVFAA MGVNMETAQF FKRDFEENGS MERVTLFLNL 
241:	ANDPTIERII TPRIALTTAE YLAYECGKHV LVILTDMSSY ADALREVSAA REEVPGRRGY 
301:	PGYMYTDLAT IYERAGRIEG RKGSITQIPI LTMPNDDITH PTPDLTGYIT EGQIYIDRQL 
361:	HNRQIYPPIN VLPSLSRLMK SAIGEGMTRR DHSDVSNQLY ANYAIGKDVQ AMKAVVGEEA 
421:	LSSEDLLYLE FLDKFERKFV AQGAYDTRNI FQSLDLAWTL LRIFPRELLH RIPAKTLDQF 
481:	YSRDTTN