Evidence map›Paper›PMID 37507476›Full record

ArticleCommunications biology2023

Identification of genotype-biochemical phenotype correlations associated with fructose 1,6-bisphosphatase deficiency.

Ikki Sakuma, Hidekazu Nagano, Naoko Hashimoto, Masanori Fujimoto, Akitoshi Nakayama, Takahiro Fuchigami, Yuki Taki, Tatsuma Matsuda, Hiroyuki Akamine, Satomi Kono and 10 more

Open access · goldAbstract read
In one paragraph

Article in Communications biology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
1.1field-weighted citation impact, top 22% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed, 7 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

20 authors at 3 institutions in 1 country.

Ikki SakumaDepartment of Molecular Diagnosis, Graduate School of Medicine Chiba University, Chiba, 260-8670, Japan.
Hidekazu NaganoDepartment of Molecular Diagnosis, Graduate School of Medicine Chiba University, Chiba, 260-8670, Japan.
Naoko HashimotoDepartment of Molecular Diagnosis, Graduate School of Medicine Chiba University, Chiba, 260-8670, Japan.
Masanori FujimotoDepartment of Molecular Diagnosis, Graduate School of Medicine Chiba University, Chiba, 260-8670, Japan.
Akitoshi NakayamaDepartment of Molecular Diagnosis, Graduate School of Medicine Chiba University, Chiba, 260-8670, Japan.
Takahiro FuchigamiDepartment of Molecular Diagnosis, Graduate School of Medicine Chiba University, Chiba, 260-8670, Japan.
Yuki TakiDepartment of Molecular Diagnosis, Graduate School of Medicine Chiba University, Chiba, 260-8670, Japan.
Tatsuma MatsudaDepartment of Molecular Diagnosis, Graduate School of Medicine Chiba University, Chiba, 260-8670, Japan.
Hiroyuki AkamineDepartment of Molecular Diagnosis, Graduate School of Medicine Chiba University, Chiba, 260-8670, Japan.
Satomi KonoDepartment of Molecular Diagnosis, Graduate School of Medicine Chiba University, Chiba, 260-8670, Japan.
Takashi KonoDepartment of Molecular Diagnosis, Graduate School of Medicine Chiba University, Chiba, 260-8670, Japan.
Masataka YokoyamaDepartment of Molecular Diagnosis, Graduate School of Medicine Chiba University, Chiba, 260-8670, Japan.
Motoi NishimuraDivision of Laboratory Medicine and Clinical Genetics, Chiba University Hospital, Chiba, 260-8670, Japan.
Koutaro YokoteDepartment of Endocrinology, Hematology and Gerontology, Graduate School of Medicine Chiba University, Chiba, 260-8670, Japan.
Tatsuki OgasawaraDepartment of Pathology and Tumor Biology, Kyoto University, Kyoto, Japan.
Yoichi FujiiDepartment of Pathology and Tumor Biology, Kyoto University, Kyoto, Japan.
Seishi OgawaDepartment of Pathology and Tumor Biology, Kyoto University, Kyoto, Japan.
Eunyoung LeeResearch Institute of Disaster Medicine, Chiba University, Chiba, 260-8670, Japan.
Takashi MikiResearch Institute of Disaster Medicine, Chiba University, Chiba, 260-8670, Japan.
Tomoaki TanakaDepartment of Molecular Diagnosis, Graduate School of Medicine Chiba University, Chiba, 260-8670, Japan. tomoaki@restaff.chiba-u.jp.ORCID 0000-0002-9761-1750
Chiba University · JPKyoto University · JPChiba University Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Fructose-1,6-bisphosphatase (FBPase) deficiency, caused by an FBP1 mutation, is an autosomal recessive disorder characterized by hypoglycemic lactic acidosis. Due to the rarity of FBPase deficiency, the mechanism by which the mutations cause enzyme activity loss still remains unclear. Here we identify compound heterozygous missense mutations of FBP1, c.491G>A (p.G164D) and c.581T>C (p.F194S), in an adult patient with hypoglycemic lactic acidosis. The G164D and F194S FBP1 mutants exhibit decreased FBP1 protein expression and a loss of FBPase enzyme activity. The biochemical phenotypes of all previously reported FBP1 missense mutations in addition to G164D and F194S are classified into three functional categories. Type 1 mutations are located at pivotal residues in enzyme activity motifs and have no effects on protein expression. Type 2 mutations structurally cluster around the substrate binding pocket and are associated with decreased protein expression due to protein misfolding. Type 3 mutations are likely nonpathogenic. These findings demonstrate a key role of protein misfolding in mediating the pathogenesis of FBPase deficiency, particularly for Type 2 mutations. This study provides important insights that certain patients with Type 2 mutations may respond to chaperone molecules.

Indexed as

Acidosis, LacticFructose-1,6-Diphosphatase DeficiencyFructoseFructose-BisphosphataseGenotypeHumansHypoglycemic AgentsPhenotypeFructoseFructose-BisphosphataseHypoglycemic Agents

Identifiers

PMID37507476
PMCPMC10382519
OpenAlexW4385341350

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.