National Cancer Institute Thesaurus

Last uploaded: February 23, 2024
Preferred Name

Troponin I

Synonyms

TNNI

TnI

Troponin I

Definitions

Troponin I, troponin T, and troponin C are the three closely associated subunits of the troponin complex of thin filaments in muscle. The complex serves as a calcium-sensitive switch that regulates muscle contraction. In the absence of calcium, Troponin I binds actin, inhibits actomyosin ATPase activity, and inhibits F-actin-myosin interactions. The troponin I gene family comprises three isoforms: skeletal TNI-fast, skeletal TNI-slow, and TNI-cardiac. (from OMIM 191044, 191043, 191042 and NCI)

ID

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C17343

code

C17343

Concept_In_Subset

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C142799

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C142800

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C116977

Contributing_Source

CTRP

DEFINITION

Troponin I, troponin T, and troponin C are the three closely associated subunits of the troponin complex of thin filaments in muscle. The complex serves as a calcium-sensitive switch that regulates muscle contraction. In the absence of calcium, Troponin I binds actin, inhibits actomyosin ATPase activity, and inhibits F-actin-myosin interactions. The troponin I gene family comprises three isoforms: skeletal TNI-fast, skeletal TNI-slow, and TNI-cardiac. (from OMIM 191044, 191043, 191042 and NCI)

Display_Name

Troponin I

FULL_SYN

TNNI

TnI

Troponin I

label

Troponin I

Legacy Concept Name

Troponin-I

Preferred_Name

Troponin I

prefixIRI

Thesaurus:C17343

Semantic_Type

Amino Acid, Peptide, or Protein

UMLS_CUI

C0077401

subClassOf

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C16492

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