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Protein

NAD(P) transhydrogenase subunit beta

Gene

pntB

Organism
Escherichia coli (strain K12)
Status
Reviewed-Annotation score: -Experimental evidence at protein leveli

Functioni

The transhydrogenation between NADH and NADP is coupled to respiration and ATP hydrolysis and functions as a proton pump across the membrane.

Catalytic activityi

NADPH + NAD+ = NADP+ + NADH.

GO - Molecular functioni

  • NAD(P)+ transhydrogenase (AB-specific) activity Source: EcoCyc
  • NAD(P)+ transhydrogenase activity Source: EcoCyc
  • NADP binding Source: EcoCyc

GO - Biological processi

  • NADPH regeneration Source: EcoCyc

Keywordsi

Molecular functionOxidoreductase
LigandNAD, NADP

Enzyme and pathway databases

BioCyciEcoCyc:PNTB-MONOMER
MetaCyc:PNTB-MONOMER

Protein family/group databases

TCDBi3.D.2.1.1 the proton-translocating transhydrogenase (pth) family

Names & Taxonomyi

Protein namesi
Recommended name:
NAD(P) transhydrogenase subunit beta (EC:1.6.1.2)
Alternative name(s):
Nicotinamide nucleotide transhydrogenase subunit beta
Pyridine nucleotide transhydrogenase subunit beta
Gene namesi
Name:pntB
Ordered Locus Names:b1602, JW1594
OrganismiEscherichia coli (strain K12)
Taxonomic identifieri83333 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaEnterobacteralesEnterobacteriaceaeEscherichia
Proteomesi
  • UP000000318 Componenti: Chromosome
  • UP000000625 Componenti: Chromosome

Organism-specific databases

EcoGeneiEG10745 pntB

Subcellular locationi

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Topological domaini1 – 3PeriplasmicSequence analysis3
Transmembranei4 – 24HelicalSequence analysisAdd BLAST21
Topological domaini25 – 45CytoplasmicSequence analysisAdd BLAST21
Transmembranei46 – 66HelicalSequence analysisAdd BLAST21
Topological domaini67 – 82PeriplasmicSequence analysisAdd BLAST16
Transmembranei83 – 103HelicalSequence analysisAdd BLAST21
Topological domaini104 – 115CytoplasmicSequence analysisAdd BLAST12
Transmembranei116 – 136HelicalSequence analysisAdd BLAST21
Topological domaini137 – 164PeriplasmicSequence analysisAdd BLAST28
Transmembranei165 – 185HelicalSequence analysisAdd BLAST21
Topological domaini186 – 188CytoplasmicSequence analysis3
Transmembranei189 – 209HelicalSequence analysisAdd BLAST21
Topological domaini210 – 215PeriplasmicSequence analysis6
Transmembranei216 – 236HelicalSequence analysisAdd BLAST21
Topological domaini237 – 239CytoplasmicSequence analysis3
Transmembranei240 – 260HelicalSequence analysisAdd BLAST21
Topological domaini261 – 308PeriplasmicSequence analysisAdd BLAST48
Transmembranei309 – 329HelicalSequence analysisAdd BLAST21
Topological domaini330 – 462CytoplasmicSequence analysisAdd BLAST133

GO - Cellular componenti

  • integral component of plasma membrane Source: EcoCyc
  • plasma membrane Source: EcoCyc

Keywords - Cellular componenti

Cell inner membrane, Cell membrane, Membrane

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00001990231 – 462NAD(P) transhydrogenase subunit betaAdd BLAST462

Proteomic databases

PaxDbiP0AB67
PRIDEiP0AB67

Interactioni

Subunit structurei

Heterodimer of an alpha and a beta chain.

Protein-protein interaction databases

BioGridi4259125, 34 interactors
DIPiDIP-367N
STRINGi316385.ECDH10B_1735

Structurei

Secondary structure

1462
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Helixi297 – 305Combined sources9
Beta strandi307 – 312Combined sources6
Helixi316 – 319Combined sources4
Turni320 – 322Combined sources3
Helixi323 – 336Combined sources14
Beta strandi339 – 344Combined sources6
Beta strandi346 – 353Combined sources8
Helixi355 – 362Combined sources8
Turni366 – 368Combined sources3
Beta strandi369 – 372Combined sources4
Helixi376 – 381Combined sources6
Beta strandi383 – 387Combined sources5
Helixi391 – 394Combined sources4
Helixi396 – 398Combined sources3
Beta strandi404 – 406Combined sources3
Beta strandi417 – 423Combined sources7
Beta strandi425 – 427Combined sources3
Turni437 – 439Combined sources3
Beta strandi440 – 447Combined sources8
Helixi451 – 461Combined sources11

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
2BRUNMR-C286-462[»]
ProteinModelPortaliP0AB67
SMRiP0AB67
ModBaseiSearch...
MobiDBiSearch...

Miscellaneous databases

EvolutionaryTraceiP0AB67

Family & Domainsi

Sequence similaritiesi

Belongs to the PNT beta subunit family.Curated

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

eggNOGiENOG4105C15 Bacteria
COG1282 LUCA
HOGENOMiHOG000243958
InParanoidiP0AB67
KOiK00325
OMAiKRGMSAG
PhylomeDBiP0AB67

Family and domain databases

InterProiView protein in InterPro
IPR029035 DHS-like_NAD/FAD-binding_dom
IPR012136 NADH_DH_b
IPR034300 PNTB-like
PfamiView protein in Pfam
PF02233 PNTB, 1 hit
PIRSFiPIRSF000204 PNTB, 1 hit
SUPFAMiSSF52467 SSF52467, 1 hit

Sequencei

Sequence statusi: Complete.

P0AB67-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MSGGLVTAAY IVAAILFIFS LAGLSKHETS RQGNNFGIAG MAIALIATIF
60 70 80 90 100
GPDTGNVGWI LLAMVIGGAI GIRLAKKVEM TEMPELVAIL HSFVGLAAVL
110 120 130 140 150
VGFNSYLHHD AGMAPILVNI HLTEVFLGIF IGAVTFTGSV VAFGKLCGKI
160 170 180 190 200
SSKPLMLPNR HKMNLAALVV SFLLLIVFVR TDSVGLQVLA LLIMTAIALV
210 220 230 240 250
FGWHLVASIG GADMPVVVSM LNSYSGWAAA AAGFMLSNDL LIVTGALVGS
260 270 280 290 300
SGAILSYIMC KAMNRSFISV IAGGFGTDGS STGDDQEVGE HREITAEETA
310 320 330 340 350
ELLKNSHSVI ITPGYGMAVA QAQYPVAEIT EKLRARGINV RFGIHPVAGR
360 370 380 390 400
LPGHMNVLLA EAKVPYDIVL EMDEINDDFA DTDTVLVIGA NDTVNPAAQD
410 420 430 440 450
DPKSPIAGMP VLEVWKAQNV IVFKRSMNTG YAGVQNPLFF KENTHMLFGD
460
AKASVDAILK AL
Length:462
Mass (Da):48,723
Last modified:November 8, 2005 - v1
Checksum:iD11747291D271A2F
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X04195 Genomic DNA Translation: CAB37090.1
X66086 Genomic DNA Translation: CAA46885.1
U00096 Genomic DNA Translation: AAC74674.1
AP009048 Genomic DNA Translation: BAA15336.1
PIRiS24381 DEECXB
RefSeqiNP_416119.1, NC_000913.3
WP_000014036.1, NZ_LN832404.1

Genome annotation databases

EnsemblBacteriaiAAC74674; AAC74674; b1602
BAA15336; BAA15336; BAA15336
GeneIDi946144
KEGGiecj:JW1594
eco:b1602
PATRICifig|1411691.4.peg.660

Similar proteinsi

Entry informationi

Entry nameiPNTB_ECOLI
AccessioniPrimary (citable) accession number: P0AB67
Secondary accession number(s): P07002, P76890
Entry historyiIntegrated into UniProtKB/Swiss-Prot: April 1, 1988
Last sequence update: November 8, 2005
Last modified: March 28, 2018
This is version 99 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

3D-structure, Complete proteome, Direct protein sequencing, Reference proteome

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