Chromosome 4 News and Research

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Humans normally have 46 chromosomes in each cell, divided into 23 pairs. Two copies of chromosome 4, one copy inherited from each parent, form one of the pairs. Chromosome 4 spans more than 191 million DNA building blocks (base pairs) and represents more than 6 percent of the total DNA in cells.

Identifying genes on each chromosome is an active area of genetic research. Because researchers use different approaches to predict the number of genes on each chromosome, the estimated number of genes varies. Chromosome 4 likely contains between 1,300 and 1,600 genes.

Genes on chromosome 4 are among the estimated 20,000 to 25,000 total genes in the human genome.

Simple blood tests for telomeric protein could provide a valuable screen for certain cancers

Once thought incapable of encoding proteins due to their simple monotonous repetitions of DNA, tiny telomeres at the tips of our chromosomes seem to hold a potent biological function that's potentially relevant to our understanding of cancer and aging.

21 Feb 2023

Pathological significance of CEACAMS 1, 5, and 6 in cancer biology, immunology and inflammatory disease

A new review was published in Genes & Cancer on February 1, 2023, entitled, "CEACAMS 1, 5, and 6 in disease and cancer: interactions with pathogens."

10 Feb 2023

3D architecture ofAedes aegypti’s chromosomes may offer clues on gene expression, regulation

When it comes to DNA, one pesky mosquito turns out to be a rebel among species.

9 Feb 2023

New blood test can detect prostate cancer with greater accuracy than current methods

Researchers at the University of East Anglia have helped develop a new blood test to detect prostate cancer with greater accuracy than current methods.

8 Feb 2023

Microscopic technique enables real-time study of RNA G-quadruplexes in living cells

A new microscopic technique allows for the real-time study of RNA G-quadruplexes in living cells, with implications for the fight against amyotrophic lateral sclerosis.

2 Feb 2023

Study identifies the DNA roots of resistance to targeted cancer therapy

A new clinical and preclinical study from UCLA Jonsson Comprehensive Cancer Center identifies the DNA roots of resistance to targeted cancer therapy, providing a possible strategy to address a vexing issue in cancer therapeutics.

26 Jan 2023

Persistent tumor mutation burden linked with therapeutic response to immunotherapy

Cancer experts have tried, sometimes unsuccessfully, to use the total number of mutations in a tumor, called the tumor mutation burden (TMB), to predict a patient's response to immunotherapy.

26 Jan 2023

Cryo-electron microscopy reveals detailed blueprint of viral genome replication machinery

RNA viruses, such as the coronavirus that causes COVID-19, are in a life-and-death race the moment they infect a cell.

25 Jan 2023

Study provides an estimate of people in the United States with VEXAS syndrome

About 13,200 men and another 2,300 women in the United States over age 50 are estimated to have VEXAS syndrome, according to a new study led by researchers at NYU Grossman School of Medicine.

24 Jan 2023

Green tea may protect against telomere shortening due to biological aging

A new study in Scientific Reports aimed to analyze the association between cross-section and longitudinal LTL changes with the consumption of soft drinks, coffee, and tea among middle-aged and older Korean men and women for six years. It also assessed any changes in the association results according to a difference in sex and age groups.

11 Jan 2023

Researchers investigate Scandinavian history across 2,000 years

Researchers investigated the history of Scandinavia from the Roman period (between 1.0 CE and 400.0 CE) to the present, spanning over 2,000 years.

10 Jan 2023

SynGAP Research Fund awards $180,000 grant to the University of Edinburgh Medical School's Patrick Wild Centre & Centre for Discovery Brain Sciences

SynGAP Research Fund (SRF), a 501(c)(3) public charity whose mission is to improve the quality of life for SYNGAP1 patients through the research and development of treatments, therapies and support systems, along with SynGAP Research Fund UK, today announced they have awarded a $180,000 grant to the University of Edinburgh Medical School's Patrick Wild Centre & Centre for Discovery Brain Sciences to advance the science around gene transfer to correct SYNGAP1 haploinsufficiency.

5 Jan 2023

Radiation damage to mature sperm cannot be repaired and is instead passed on to the offspring

Whether radiation exposure of fathers can have consequences on their children is one of the most long-standing questions in radiation biology.

21 Dec 2022

Non-invasive artificial intelligence approach for IVF embryo selection

An artificial intelligence algorithm can determine non-invasively, with about 70 percent accuracy, if an in vitro fertilized embryo has a normal or abnormal number of chromosomes, according to a new study from researchers at Weill Cornell Medicine.

20 Dec 2022

First cell-type specific multiomic study of the HIV brain

Researchers identify cell-type-specific differences in HIV integration sites in the brain.

19 Dec 2022

ACMG's new guideline strongly recommends the use of noninvasive prenatal screening for fetal chromosome abnormalities

The American College of Medical Genetics and Genomics (ACMG) has released a new Evidence-Based Clinical Practice Guideline (EBG), "Noninvasive prenatal screening for fetal chromosome abnormalities in a general-risk population: An evidence-based clinical guideline of the American College of Medical Genetics and Genomics."

16 Dec 2022

New mutations near known genes could contribute to the increase in cleft lip and palate risk

Cleft lip and palate are among the most common congenital malformations, which are mainly due to genetic causes.

16 Dec 2022

Researchers discover previously unknown mechanism for how 'starvation response' is triggered

Body cells burn off fat reserves when nutrient supply from food ceases. A team led by Professor Volker Haucke and Dr. Wonyul Jang from the Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP) has now discovered a previously unknown mechanism for how this “starvation response” is triggered, and what can inhibit it.

15 Dec 2022

Severity of COVID-19 in men may be due to the loss of Y chromosome

Men are at an increased risk of a severe bout of COVID-19 compared to women. Researchers at Uppsala University have now shown that this may be due to loss of the Y chromosome in part of their white blood cells.

14 Dec 2022

Targeted therapies and novel drug combinations show promise for the treatment of multiple leukemias

Researchers from The University of Texas MD Anderson Cancer Center are presenting compelling findings from three clinical trials at the 2022 American Society of Hematology Annual Meeting.

13 Dec 2022