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Literature summary for 7.2.2.12 extracted from

  • Mandal, P.K.; Mandal, A.; Ahearn, G.A.
    65Zn2+ transport by lobster hepatopancreatic lysosomal membrane vesicles (2006), J. Exp. Zool., 305A, 203-214.
No PubMed abstract available

Activating Compound

Activating Compound Comment Organism Structure
additional information stimulated by an outwardly directed proton gradient Homarus americanus

Inhibitors

Inhibitors Comment Organism Structure
Cd2+ competitive inhibitor Homarus americanus
Cu2+ competitive inhibitor Homarus americanus
thapsigargin
-
Homarus americanus
vanadate
-
Homarus americanus

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.0148
-
Zn2+ pH condition outward gradient, pH = 5.0/7.0 Homarus americanus
0.0323
-
Zn2+
-
Homarus americanus
0.03589
-
Zn2+ carrier transport is stimulated by the addition of 1 mM ATP Homarus americanus
0.0413
-
Zn2+ pH condition equal, pH = 7.0/7.0 Homarus americanus
0.072
-
Zn2+ pH condition equal, pH = 5.0/5.0 Homarus americanus
0.2288
-
Zn2+ pH condition inward gradient, pH = 7.0/5.0 Homarus americanus

Localization

Localization Comment Organism GeneOntology No. Textmining
lysosomal membrane lysosomal membrane vesicle, LMV Homarus americanus 5765
-

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
ATP + H2O + Zn2+/out Homarus americanus
-
ADP + phosphate + Zn2+/in
-
?

Organism

Organism UniProt Comment Textmining
Homarus americanus
-
-
-

Purification (Commentary)

Purification (Comment) Organism
lysosomal membrane vesicles are prepared Homarus americanus

Source Tissue

Source Tissue Comment Organism Textmining
hepatopancreas
-
Homarus americanus
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
0.001242
-
-
Homarus americanus
0.001584
-
pH condition equal, pH = 7.0/7.0 Homarus americanus
0.001668
-
pH condition equal, pH = 5.0/5.0 Homarus americanus
0.001866
-
pH condition outward gradient, pH = 5.0/7.0 Homarus americanus
0.001916
-
carrier transport is stimulated by the addition of 1 mM ATP Homarus americanus
0.002082
-
pH condition inward gradient, pH = 7.0/5.0 Homarus americanus

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
ATP + H2O + Ca2+/out
-
Homarus americanus ADP + phosphate + Ca2+/in
-
?
ATP + H2O + Cd2+/out
-
Homarus americanus ADP + phosphate + Cd2+/in
-
?
ATP + H2O + Cu2+/out
-
Homarus americanus ADP + phosphate + Cu2+/in
-
?
ATP + H2O + Zn2+/out
-
Homarus americanus ADP + phosphate + Zn2+/in
-
?

Synonyms

Synonyms Comment Organism
P-type ATPase
-
Homarus americanus
SERCA-like ATPase SERCA, ER Sarco-Endoplasmic Reticulum Calcium ATPase Homarus americanus

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
23
-
Zn2+ transport measurement at room temperature Homarus americanus

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.2
-
Zn2+ transport measurement at room temperature Homarus americanus

Ki Value [mM]

Ki Value [mM] Ki Value maximum [mM] Inhibitor Comment Organism Structure
0.0327
-
Cu2+
-
Homarus americanus
0.0681
-
Cd2+
-
Homarus americanus