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Fulltext Non-deletional alpha thalassaemia: a review

Kalle Kwaifa I, Lai MI, Md Noor S

Orphanet J Rare Dis, 2020 06 29;15(1):166.
PMID: 32600445 DOI: 10.1186/s13023-020-01429-1

BACKGROUND: Defective synthesis of the α-globin chain due to mutations in the alpha-globin genes and/or its regulatory elements leads to alpha thalassaemia syndrome. Complete deletion of the 4 alpha-globin genes results in the most severe phenotype known as haemoglobin Bart's, which leads to intrauterine death. The presence of one functional alpha gene is associated with haemoglobin H disease, characterised by non-transfusion-dependent thalassaemia phenotype, while silent and carrier traits are mostly asymptomatic.
MAIN BODY: Clinical manifestations of non-deletional in alpha thalassaemia are varied and have more severe phenotype compared to deletional forms of alpha thalassaemia. Literature for the molecular mechanisms of common non-deletional alpha thalassaemia including therapeutic measures that are necessarily needed for the understanding of these disorders is still in demand. This manuscript would contribute to the better knowledge of how defective production of the α-globin chains due to mutations on the alpha-globin genes and/or the regulatory elements leads to alpha thalassaemia syndrome.
CONCLUSION: Since many molecular markers are associated with the globin gene expression and switching over during the developmental stages, there is a need for increased awareness, new-born and prenatal screening program, especially for countries with high migration impact, and for improving the monitoring of patients with α-thalassaemia.

Matched MeSH terms: Mutation/genetics
Three novel mutations in Iranian patients with Tay-Sachs disease

Jamali S, Eskandari N, Aryani O, Salehpour S, Zaman T, Kamalidehghan B, et al.

Iran Biomed J, 2014;18(2):114-9.
PMID: 24518553

BACKGROUND: Tay-Sachs disease (TSD), or GM2 gangliosidosis, is a lethal autosomal recessive neurodegenerative disorder, which is caused by a deficiency of beta-hexosaminidase A (HEXA), resulting in lysosomal accumulation of GM2 ganglioside. The aim of this study was to identify the TSD-causing mutations in an Iranian population.
METHODS: In this study, we examined 31 patients for TSD-causing mutations using PCR, followed by restriction enzyme digestion.
RESULTS: Molecular genetics analysis of DNA from 23 patients of TSD revealed mutations that has been previously reported, including four-base duplications c.1274_1277dupTATC in exon 11 and IVS2+1G>A, deletion TTAGGCAAGGGC in exon 10 as well as a few novel mutations, including C331G, which altered Gln>Glu in HEXB, A>G, T>C, and p.R510X in exon 14, which predicted a termination codon or nonsense mutation.
CONCLUSION: In conclusion, with the discovery of these novel mutations, the genotypic spectrum of Iranian patients with TSD disease has been extended and could facilitate definition of disease-related mutations.

Matched MeSH terms: Mutation/genetics*
Fulltext Mutations of the p53 gene in gliomas from Malay patients

Jafri A, Aziz MY, Ros S, Nizam I

Med J Malaysia, 2003 Jun;58(2):236-42.
PMID: 14569744

This is the first investigation performed to detect the presence of the p53 mutation in Malay patients with gliomas. The p53 gene was amplified using polymerase chain reaction (PCR) from 33 fresh-frozen tumour tissues from patients histologically confirmed as glioma. Four hot spot areas that lie between exon 5 to 8 were screened for mutation by mean of non-isotopic "cold" single strand conformation polymorphism (SSCP) analysis and direct sequencing. The frequency of p53 gene mutation in gliomas examined was 33% (11 of 33). Five (45.5%) cases had mutation in exon 7, four (36.4%) had mutation in exon 8 and two (18.1%) had mutation in exon 6. Seven (63.6%) of 11 mutations were single nucleotide point mutations of which 5 were missense mutations, 1 was nonsense mutation and 1 was, silent mutation. Three (27.3%) showed insertion mutation and 1 (9.1%) showed deletion mutation. Of the point mutations, 57.1% were transitions and 42.9% were transversions. These results suggested that p53 mutations frequently occur in gliomas and this gene does play an important role in the tumourigenesis process of Malay patients with brain tumours.

Matched MeSH terms: Mutation/genetics*
Fulltext Detection of carrier status of hemophilia B using DNA markers

Ishak R, Zakaria Z

Southeast Asian J. Trop. Med. Public Health, 1997 Sep;28(3):629-30.
PMID: 9561621

Hemophilia B is an X-linked recessive disorder of the hemostasis involving a defective clotting factor IX. Amplification of the regions containing restriction fragment length polymorphisms (RFLP) can be achieved by the use of polymerase chain reaction (PCR). This paper describes the analysis of 2 RFLPs involving the Dde1 and Taq1 restriction sites within the factor IX gene in a family with hemophilia B. Digestion of the PCR products with Taq1 revealed a 163bp fragment in all the family members. This finding suggests the absence of restriction site for Taq1 enzyme. However, the Dde1 digest results in bands 369bp and 319bp segregated amongst the family members. The pattern of inheritance of the 369bp fragment in this family suggested that both the patient's mother and aunt are not carriers and that the patient's factor IX gene could have undergone a de novo mutation producing a defective factor IX gene responsible for the hemophilia B. This is supported by the fact that no family history of hemophilia B is indicated in the other male members within the family.

Matched MeSH terms: Point Mutation/genetics
Tocotrienol-Rich Fraction Modulates Amyloid Pathology and Improves Cognitive Function in AβPP/PS1 Mice

Ibrahim NF, Yanagisawa D, Durani LW, Hamezah HS, Damanhuri HA, Wan Ngah WZ, et al.

J Alzheimers Dis, 2017;55(2):597-612.
PMID: 27716672

Alzheimer's disease (AD) is the most common cause of dementia. The cardinal neuropathological characteristic of AD is the accumulation of amyloid-β (Aβ) into extracellular plaques that ultimately disrupt neuronal function and lead to neurodegeneration. One possible therapeutic strategy therefore is to prevent Aβ aggregation. Previous studies have suggested that vitamin E analogs slow AD progression in humans. In the present study, we investigated the effects of the tocotrienol-rich fraction (TRF), a mixture of vitamin E analogs from palm oil, on amyloid pathology in vitro and in vivo. TRF treatment dose-dependently inhibited the formation of Aβ fibrils and Aβ oligomers in vitro. Moreover, daily TRF supplementation to AβPPswe/PS1dE9 double transgenic mice for 10 months attenuated Aβ immunoreactive depositions and thioflavin-S-positive fibrillar type plaques in the brain, and eventually improved cognitive function in the novel object recognition test compared with control AβPPswe/PS1dE9 mice. The present result indicates that TRF reduced amyloid pathology and improved cognitive functions, and suggests that TRF is a potential therapeutic agent for AD.

Matched MeSH terms: Mutation/genetics
Combined Overlap Extension PCR Method for Improved Site Directed Mutagenesis

Hussain H, Chong NF

Biomed Res Int, 2016;2016:8041532.
PMID: 27995143

The combined overlap extension PCR (COE-PCR) method developed in this work combines the strengths of the overlap extension PCR (OE-PCR) method with the speed and ease of the asymmetrical overlap extension (AOE-PCR) method. This combined method allows up to 6 base pairs to be mutated at a time and requires a total of 40-45 PCR cycles. A total of eight mutagenesis experiments were successfully carried out, with each experiment mutating between two to six base pairs. Up to four adjacent codons were changed in a single experiment. This method is especially useful for codon optimization, where doublet or triplet rare codons can be changed using a single mutagenic primer set, in a single experiment.

Matched MeSH terms: Mutation/genetics*
Clarithromycin resistance and point mutations in the 23S rRNA gene in Helicobacter pylori isolates from Malaysia

Ho SL, Tan EL, Sam CK, Goh KL

J Dig Dis, 2010 Apr;11(2):101-5.
PMID: 20402836 DOI: 10.1111/j.1751-2980.2010.00423.x

To determine the prevalence of primary clarithromycin resistance amongst Helicobacter pylori (H. pylori) strains in Malaysian patients with gastroduodenal diseases, by using restriction fragment length polymorphism (RFLP) in domain V of 23S rRNA.

Matched MeSH terms: Point Mutation/genetics*
Association of insertion/deletion polymorphism of angiotensin-converting enzyme gene among Malay male hypertensive subjects in response to ACE inhibitors

Heidari F, Vasudevan R, Mohd Ali SZ, Ismail P, Etemad A, Pishva SR, et al.

J Renin Angiotensin Aldosterone Syst, 2015 Dec;16(4):872-9.
PMID: 25002132 DOI: 10.1177/1470320314538878

Several studies show that the insertion/deletion (I/D) polymorphism of the angiotensin-converting enzyme (ACE) gene has been associated with hypertension in various populations. The present study sought to determine the association of the I/D gene polymorphism among Malay male essential hypertensive subjects in response to ACE inhibitors (enalapril and lisinopril).

Matched MeSH terms: INDEL Mutation/genetics*
Genetic diversity of chicken anemia virus following cell culture passaging in MSB-1 cells

Hasmah MS, Omar AR, Wan KF, Hair-Bejo M, Aini I

Acta Virol., 2004;48(2):85-9.
PMID: 15462283

It has been shown that a chicken anemia virus (CAV) isolates which had undergone 60 passages in MSB-1 cells (SMSC-1/P60, 3-1/P60) acquired 33-66 nucleotide substitutions at the coding region resulting in 13-16 amino acid changes as compared to the CAV isolates passaged only 5 times in MSB-1 cells (SMSC-1 and 3-1) (Chowdhury et al., Arch. Virol. 148, 2437-2448, 2003). In this study we found that a low CAV (BL-5) and a high CAV passage (BL-5/P90) differed by only 15 nucleotide substitutions resulting in 11 amino acid changes. Phylogenetic analysis based on VP1 also revealed that both isolates were close to each other but not to other CAV isolates from Malaysia, namely SMSC-1 and 3-1.

Matched MeSH terms: Point Mutation/genetics
[Simple and rapid analysis of beta-thalassemia mutation by sequence-specific amplification]

Harano K, Harano T

Rinsho Byori, 2013 Mar;61(3):217-23.
PMID: 23785790

This study was done to detect and diagnose beta-thalassemia (beta-Thal) gene quickly. We applied sequence specific Amplification (SSA) method to the analysis. 13 kinds of beta-Thal and two kinds of hemoglobin variants were able to detect under the same PCR condition. These mutations were found frequently in ten countries of Asian region (the southern part of China, Vietnam, Cambodia, Thailand, Myanmar, Malaysia, Singapore, Indonesia, Pakistan, India), and 15 kinds in total (-28CapA-->G, CD5-CT, CD8/9+-G, CD15G-->A, CD17A-->T, IVSI-1G-->T, CD41/42-4del, CD16-C, CD26G-->A(betaE), IVSI-5G-->C, CD35C-->A, CD71/72 +A, CD6A-->T (betaS), -619del, IVSII-654C-->T). More than 80% of patients are included in these mutations. To make the reagents a kit, the procedure became simple and rapid. DNA was extracted by salting out method. The PCR product was detected by polyacrylamide gel electrophoresis and silver staining. The confirmation of the variant was done by the PCR-direct sequencing method. It took approximately six hours for PCR reaction, electrophoresis and staining. This method made us to detect and diagnose beta-Thal in one day.

Matched MeSH terms: Mutation/genetics*
Fulltext Molecular and genomic characterisation of a panel of human anal cancer cell lines

Guerra GR, Kong JC, Millen RM, Read M, Liu DS, Roth S, et al.

Cell Death Dis, 2021 Oct 18;12(11):959.
PMID: 34663790 DOI: 10.1038/s41419-021-04141-5

Anal cancer is a rare disease that has doubled in incidence over the last four decades. Current treatment and survival of patients with this disease has not changed substantially over this period of time, due, in part, to a paucity of preclinical models to assess new therapeutic options. To address this hiatus, we set-out to establish, validate and characterise a panel of human anal squamous cell carcinoma (ASCC) cell lines by employing an explant technique using fresh human ASCC tumour tissue. The panel of five human ASCC cell lines were validated to confirm their origin, squamous features and tumourigenicity, followed by molecular and genomic (whole-exome sequencing) characterisation. This panel recapitulates the genetic and molecular characteristics previously described in ASCC including phosphoinositide-3-kinase (PI3K) mutations in three of the human papillomavirus (HPV) positive lines and TP53 mutations in the HPV negative line. The cell lines demonstrate the ability to form tumouroids and retain their tumourigenic potential upon xenotransplantation, with varied inducible expression of major histocompatibility complex class I (MHC class I) and Programmed cell death ligand 1 (PD-L1). We observed differential responses to standard chemotherapy, radiotherapy and a PI3K specific molecular targeted agent in vitro, which correlated with the clinical response of the patient tumours from which they were derived. We anticipate this novel panel of human ASCC cell lines will form a valuable resource for future studies into the biology and therapeutics of this rare disease.

Matched MeSH terms: Mutation/genetics
Amelogenesis imperfecta: enamel ultra structure and molecular studies

Gopinath VK, Al-Salihi KA, Yean CY, Ann MC, Ravichandran M

J Clin Pediatr Dent, 2004;28(4):319-22.
PMID: 15366620

Amelogenesis imperfecta (AI) is a hereditary disorder resulting in generalized defects in the enamel. The case reported here is of a seven-year-old male child with yellow color of all his teeth. Two of his primary molars were extracted due to dental abscess with advanced root resorption. Histologically hypoplastic enamel layer, positively birefringent, generalized pitting, roughness with irregular general cracked borders were observed. Scanning electron microscope, revealed extensive irregular, disorganized rough superficial enamel layer. The enamel was irregularly decussate with filamentous prisms accompanied by small rounded formations. The morphological and histological examination of the tooth revealed that this patient has the features of AI. For genetic study blood sample were collected from the patient and PCR analysis revealed that there is no mutation in exons 1-7 of AMELX gene on the X chromosome of the patient. Hence, it is probable that the AI of this patient is not X-linked. It is more likely to be an autosomal mutation.

Matched MeSH terms: Mutation/genetics
RNA-binding region of Macrobrachium rosenbergii nodavirus capsid protein

Goh ZH, Mohd NAS, Tan SG, Bhassu S, Tan WS

J Gen Virol, 2014 Sep;95(Pt 9):1919-1928.
PMID: 24878641 DOI: 10.1099/vir.0.064014-0

White tail disease (WTD) kills prawn larvae and causes drastic losses to the freshwater prawn (Macrobrachium rosenbergii) industry. The main causative agent of WTD is Macrobrachium rosenbergii nodavirus (MrNV). The N-terminal end of the MrNV capsid protein is very rich in positively charged amino acids and is postulated to interact with RNA molecules. N-terminal and internal deletion mutagenesis revealed that the RNA-binding region is located at positions 20-29, where 80 % of amino acids are positively charged. Substitution of all these positively charged residues with alanine abolished the RNA binding. Mutants without the RNA-binding region still assembled into virus-like particles, suggesting that this region is not a part of the capsid assembly domain. This paper is, to the best of our knowledge, the first to report the specific RNA-binding region of MrNV capsid protein.

Matched MeSH terms: Point Mutation/genetics
Fulltext Two novel tyrosinase (TYR) gene mutations with pathogenic impact on oculocutaneous albinism type 1 (OCA1)

Ghodsinejad Kalahroudi V, Kamalidehghan B, Arasteh Kani A, Aryani O, Tondar M, Ahmadipour F, et al.

PLoS One, 2014;9(9):e106656.
PMID: 25216246 DOI: 10.1371/journal.pone.0106656

Oculocutaneous albinism (OCA) is a heterogeneous group of autosomal recessive disorders resulting from mutations of the tyrosinase (TYR) gene and presents with either complete or partial absence of pigment in the skin, hair and eyes due to a defect in an enzyme involved in the production of melanin. In this study, mutations in the TYR gene of 30 unrelated Iranian OCA1 patients and 100 healthy individuals were examined using PCR-sequencing. Additionally, in order to predict the possible effects of new mutations on the structure and function of tyrosinase, these mutations were analyzed by SIFT, PolyPhen and I-Mutant 2 software. Here, two new pathogenic p.C89S and p.H180R mutations were detected in two OCA1 patients. Moreover, the R402Q and S192Y variants, which are common non-pathogenic polymorphisms, were detected in 17.5% and 35% of the patients, respectively. The outcome of this study has extended the genotypic spectrum of OCA1 patients, which paves the way for more efficient carrier detection and genetic counseling.

Matched MeSH terms: Mutation/genetics*
Types of thalassemia among patients attending a large university clinic in Kuala Lumpur, Malaysia

George E, Li HJ, Fei YJ, Reese AL, Baysal E, Cepreganova B, et al.

Hemoglobin, 1992;16(1-2):51-66.
PMID: 1634362

We have identified the beta-thalassemia mutations in 59 patients with thalassemia major and 47 patients with Hb E-beta-thalassemia, and the deletional and nondeletional alpha-thalassemia determinants in 23 out of 24 patients with Hb H disease. All persons were attending the Haematology Clinic at the National University of Malaysia in Kuala Lumpur (Malaysia). Most patients (76) were of Malay descent, while 52 patients were Chinese, and two came from elsewhere. The most frequently occurring beta-thalassemia alleles among the Malay patients were IVS-I-5 (G----C) and G----A at codon 26 (Hb E), while a few others were present at lower frequencies. The Chinese patients carried the mutation characteristic for Chinese [mainly codons 41/42 (-TTCT) and IVS-II-654 (C----T)]; Malay mutations were not observed among Chinese and Chinese mutations were virtually absent in the Malay patients. The large group of patients with Hb E-beta-thalassemia and different beta-thalassemia alleles offered the opportunity of comparing hematological data; information obtained for patients with Hb E-beta-thalassemia living in other countries was included in this comparison. Twenty-three patients with Hb H disease carried the Southeast Asian (SEA) alpha-thalassemia-1 deletion; 13 had the alpha CS alpha (Constant Spring) nondeletional alpha-thalassemia-2 determinant, while the deletional alpha-thalassemia-2 (-3.7 or -4.2 kb) was present in 10 subjects. The --/alpha CS alpha condition appeared to be the most severe with higher Hb H values. Both deletional and nondeletional types of alpha-thalassemia-2 were seen among Malay and Chinese patients.

Matched MeSH terms: Mutation/genetics
Fulltext Hb E beta +-thalassaemia in west Malaysia: clinical features in the most common beta-thalassaemia mutation of the Malays [IVS 1-5 (G-->C)]

George E, Wong HB

Singapore Med J, 1993 Dec;34(6):500-3.
PMID: 8153710

Patients with the Hb beta + [IVS 1-5 (G-->C)] clinically presented as beta-thalassaemia intermedia and remained asymptomatic in the absence of blood transfusions. With or without blood transfusions the patients were short and had moderate to marked thalassaemia facies. Children who received blood transfusions showed progressive iron loading with age. The serum ferritin and serum alanine transaminase levels were significantly raised in the patients who were given blood transfusions. In the presence of blood transfusions, and absence of adequate iron chelation therapy, splenectomy became an inevitable event at some stage of the disease because of increasing transfusing requirements.

Matched MeSH terms: Mutation/genetics
Fulltext Low levels of polymorphisms and no evidence for diversifying selection on the Plasmodium knowlesi Apical Membrane Antigen 1 gene

Faber BW, Abdul Kadir K, Rodriguez-Garcia R, Remarque EJ, Saul FA, Vulliez-Le Normand B, et al.

PLoS One, 2015;10(4):e0124400.
PMID: 25881166 DOI: 10.1371/journal.pone.0124400

Infection with Plasmodium knowlesi, a zoonotic primate malaria, is a growing human health problem in Southeast Asia. P. knowlesi is being used in malaria vaccine studies, and a number of proteins are being considered as candidate malaria vaccine antigens, including the Apical Membrane Antigen 1 (AMA1). In order to determine genetic diversity of the ama1 gene and to identify epitopes of AMA1 under strongest immune selection, the ama1 gene of 52 P. knowlesi isolates derived from human infections was sequenced. Sequence analysis of isolates from two geographically isolated regions in Sarawak showed that polymorphism in the protein is low compared to that of AMA1 of the major human malaria parasites, P. falciparum and P. vivax. Although the number of haplotypes was 27, the frequency of mutations at the majority of the polymorphic positions was low, and only six positions had a variance frequency higher than 10%. Only two positions had more than one alternative amino acid. Interestingly, three of the high-frequency polymorphic sites correspond to invariant sites in PfAMA1 or PvAMA1. Statistically significant differences in the quantity of three of the six high frequency mutations were observed between the two regions. These analyses suggest that the pkama1 gene is not under balancing selection, as observed for pfama1 and pvama1, and that the PkAMA1 protein is not a primary target for protective humoral immune responses in their reservoir macaque hosts, unlike PfAMA1 and PvAMA1 in humans. The low level of polymorphism justifies the development of a single allele PkAMA1-based vaccine.

Matched MeSH terms: Mutation/genetics*
Speciation and phylogeography of the Southeast Asian Anopheles sundaicus complex

Dusfour I, Michaux JR, Harbach RE, Manguin S

Infect Genet Evol, 2007 Jul;7(4):484-93.
PMID: 17350896

Anopheles sundaicus s.l. is a malaria vector in coastal areas of Southeast Asia. Previous studies showed at least four distinct species within the complex. The present study investigated the phylogeography and the status of A. sundaicus s.l. populations from Cambodia, Thailand, Malaysia and Indonesia with regard to A. sundaicus s.s. from Sarawak, Malaysian Borneo and A. epiroticus in Vietnam and Thailand. Three lineages recovered by analyses of Cyt-b and COI (mtDNA) confirmed the presence of A. sundaicus s.s. in Malaysian Borneo, the distribution of A. epiroticus from southern Vietnam to peninsular Malaysia, and recognised a distinct form in Indonesia that is named A. sundaicus E. The phylogenetic and demographic analyses suggest that the three species were separated during the Early Pleistocene (1.8-0.78 Myr) and experienced bottlenecks followed by a genetic expansion in more recent times. Based on the results and knowledge of the biogeography of the area, we hypothesise that the combination of cyclical island and refugium creation was the cause of lineage isolation and bottleneck events during the Pleistocene.

Matched MeSH terms: Mutation/genetics
Fulltext Progressive myoclonus epilepsies-Residual unsolved cases have marked genetic heterogeneity including dolichol-dependent protein glycosylation pathway genes

Courage C, Oliver KL, Park EJ, Cameron JM, Grabińska KA, Muona M, et al.

Am J Hum Genet, 2021 04 01;108(4):722-738.
PMID: 33798445 DOI: 10.1016/j.ajhg.2021.03.013

Progressive myoclonus epilepsies (PMEs) comprise a group of clinically and genetically heterogeneous rare diseases. Over 70% of PME cases can now be molecularly solved. Known PME genes encode a variety of proteins, many involved in lysosomal and endosomal function. We performed whole-exome sequencing (WES) in 84 (78 unrelated) unsolved PME-affected individuals, with or without additional family members, to discover novel causes. We identified likely disease-causing variants in 24 out of 78 (31%) unrelated individuals, despite previous genetic analyses. The diagnostic yield was significantly higher for individuals studied as trios or families (14/28) versus singletons (10/50) (OR = 3.9, p value = 0.01, Fisher's exact test). The 24 likely solved cases of PME involved 18 genes. First, we found and functionally validated five heterozygous variants in NUS1 and DHDDS and a homozygous variant in ALG10, with no previous disease associations. All three genes are involved in dolichol-dependent protein glycosylation, a pathway not previously implicated in PME. Second, we independently validate SEMA6B as a dominant PME gene in two unrelated individuals. Third, in five families, we identified variants in established PME genes; three with intronic or copy-number changes (CLN6, GBA, NEU1) and two very rare causes (ASAH1, CERS1). Fourth, we found a group of genes usually associated with developmental and epileptic encephalopathies, but here, remarkably, presenting as PME, with or without prior developmental delay. Our systematic analysis of these cases suggests that the small residuum of unsolved cases will most likely be a collection of very rare, genetically heterogeneous etiologies.

Matched MeSH terms: Mutation/genetics*
Co-inheritance of variants/mutations in Malaysian patients with Crohn's disease

Chua KH, Ng CC, Hilmi I, Goh KL

Genet. Mol. Res., 2012;11(3):3115-21.
PMID: 23007989

Crohn's disease is a chronic, relapsing inflammatory bowel disease; it affects the mucosa and deeper layers of the digestive wall. Two Crohn's disease patients who carried the JW1 variant and two patients who carried the SNP5 variant were investigated for other co-inherited polymorphisms that could influence Crohn's disease development. Based on the sequencing results, a homozygous 5'-UTR-59 G to A variant in exon 1 (SNP6) was observed in a patient who carried SNP5, while a heterozygous SNP6 variant was detected in the other patient who carried SNP5. No other associated mutations or polymorphisms were detected in the two patients who carried the JW1 variant of the CARD15/NOD2 gene.

Matched MeSH terms: Mutation/genetics*

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