biology

TIMMDC1

TIMMDC1 is a biology topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand TIMMDC1 rather than just read about it. In short: TIMMDC1 is a protein that in humans is encoded by the TIMMDC1 gene. It is a chaperone protein involved in constructing the membrane arm of mitochondrial Complex I.

Key takeaways

TIMMDC1 belongs to biology; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect TIMMDC1 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of TIMMDC1 from memory before moving on to harder problems.

Reference excerpt

TIMMDC1 is a protein that in humans is encoded by the TIMMDC1 gene. It is a chaperone protein involved in constructing the membrane arm of mitochondrial Complex I. A frameshift mutation in an intron of this gene has been shown to cause failure to thrive, retardation of psychomotor development, infantile-onset hypotonia, and severe neurologic dysfunction. High expression of this gene has been associated with migration of lung cancer cells while depletion of the protein has been shown to affect regulation of apoptosis, the cell cycle, and cell migration.

Structure The TIMMDC1 gene is located on the q arm of chromosome 3 in position 13.33 and spans 25,760 base pairs, with 7 exons. The gene produces a 32.2 kDa protein composed of 285 amino acids. The TIMMDC1 protein has 4 transmembrane domains, with the N-terminal and C-terminal extensions localized in the mitochondrial matrix. TIMMDC1 is a multipass mitochondrial inner membrane protein, predicted to be a member of the 4-pass transmembrane protein family of TIM17-TIM22-TIM23. Its topology is predicted to be analogous to TIMM23.

Function TIMMDC1 is a chaperone protein involved in the assembly of the mitochondrial Complex I (NADH-ubiquinone oxidoreductase), participating in the construction of the membrane arm of complex I.

Clinical Significance A frameshift mutation in intron 5 of the TIMMDC1 gene has been shown to cause severe neurologic dysfunction, infantile-onset hypotonia, retardation of psychomotor development, and failure to thrive. Additionally, high expression of TIMMDC1 has been associated with metastasis of lung carcinoma cells, with depletion of the protein inhibiting growth and migration of 95D lung carcinoma cells. Depletion of TIMMDC1 has also been shown to alter expression of genes involved in the regulation of apoptosis, cell-cycle arrest, and cell migration, including CCNG2, PTEN, TIMP3, and COL3A1.

Interactions The TIMMDC1 protein interacts with the intermediate 315 kDa subcomplex of incompletely assembled complex I and has interactions with FATE1, in addition to about 60 other proteins. TIMMDC1 associates reciprocally with multiple components of the ECSIT-TMEM126B-ACAD9-NDUFAF1 assembly factor complex (MCIA complex).

References

External links Human TIMMDC1 genome location and TIMMDC1 gene details page in the UCSC Genome Browser.

Illustrations

Worked examples

Example 1 — a first encounter with TIMMDC1

Start with the simplest possible case. Write down what TIMMDC1 claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In biology, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to TIMMDC1 before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about TIMMDC1 ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of TIMMDC1

In research: TIMMDC1 appears in biology research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses TIMMDC1 in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: TIMMDC1 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Genes on human chromosome 3, Human chromosome 3 gene stubs, so understanding it makes those chapters shorter.
In everyday life: Look for TIMMDC1 outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study TIMMDC1 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what TIMMDC1 means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain TIMMDC1 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is TIMMDC1 in simple terms?

TIMMDC1 is a protein that in humans is encoded by the TIMMDC1 gene. It is a chaperone protein involved in constructing the membrane arm of mitochondrial Complex I.

Why does TIMMDC1 matter?

Because it connects several biology ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study TIMMDC1?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on TIMMDC1.