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Bleeding and Platelet Disorders v1.43 PROC Jane Lin gene: PROC was added
gene: PROC was added to Bleeding and Platelet Disorders. Sources: Expert list
Mode of inheritance for gene: PROC was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Publications for gene: PROC were set to PMID: 2437584; PMID: 7670104; PMID: 10942114; PMID: 28265398
Phenotypes for gene: PROC were set to THROMBOPHILIA DUE TO PROTEIN C DEFICIENCY, AUTOSOMAL DOMINANT # 176860; THROMBOPHILIA DUE TO PROTEIN C DEFICIENCY, AUTOSOMAL RECESSIVE, # 612304
Review for gene: PROC was set to GREEN
gene: PROC was marked as current diagnostic
Added comment: Has well established gene-disease association with thrombosis. Biallelic inheritance is rare and there is evidence it is more severe but data is complicated by findings that some patients also have changes in Factor V Leiden so have not selected the option where biallelic inheritance is more severe.
Sources: Expert list
Bleeding and Platelet Disorders v1.16 TLN1 Achchuthan Shanmugasundram gene: TLN1 was added
gene: TLN1 was added to Bleeding and Platelet Disorders. Sources: Literature
Mode of inheritance for gene: TLN1 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: TLN1 were set to 35861643
Phenotypes for gene: TLN1 were set to thrombocytopenia, MONDO:0002049
Review for gene: TLN1 was set to RED
Added comment: PMID:35861643 reported a 20-year old man of Mexican ancestry with a complex phenotype including thrombocytopenia, T lymphopenia, and low IgG levels. The patient generally had a platelet count of <20 000/mcL, but without significant bleeding. He was identified with a de novo heterozygous variant c.685C > T (p.Pro 229 Ser) that was not present in his parents.
Sources: Literature
Bleeding and Platelet Disorders v1.0 SLC37A4 Paul De Fazio gene: SLC37A4 was added
gene: SLC37A4 was added to Bleeding and Platelet Disorders. Sources: Literature
Mode of inheritance for gene: SLC37A4 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: SLC37A4 were set to 33964207
Phenotypes for gene: SLC37A4 were set to Congenital disorder of glycosylation; liver dysfunction; coagulation deficiency
Review for gene: SLC37A4 was set to GREEN
gene: SLC37A4 was marked as current diagnostic
Added comment: 7 patients from 4 families, additional to the two reported previously, described with the same recurrent c.1267C>T (p.R423*) variant with liver dysfunction multifactorial coagulation deficiency and cardiac issues. Serum samples from affected individuals showed profound accumulation of both high mannose and hybrid type N-glycans. Hepatoma cell-line studies support the pathogenicity of the variant.

Note that although most/all patients had abnormal clotting factors, only one was noted to have a history of bruising/bleeding.
Sources: Literature
Bleeding and Platelet Disorders v0.269 GP9 Zornitza Stark edited their review of gene: GP9: Added comment: Bernard-Soulier syndrome is a bleeding disorder caused by a defect in or deficiency of the platelet membrane von Willebrand factor receptor complex, glycoprotein Ib (GP Ib). GP Ib is composed of 4 subunits encoded by 4 separate genes: GP1BA, GP1BB, GP9, and GP5.

At least 3 unrelated families reported, animal model.; Changed publications: 8049428, 33553065, 32030720, 31484196
Bleeding and Platelet Disorders v0.201 BLOC1S5 Chirag Patel gene: BLOC1S5 was added
gene: BLOC1S5 was added to Bleeding Disorders. Sources: Literature
Mode of inheritance for gene: BLOC1S5 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: BLOC1S5 were set to PMID: 32565547
Phenotypes for gene: BLOC1S5 were set to Hermansky–Pudlak syndrome type 11, no OMIM#
Review for gene: BLOC1S5 was set to GREEN
gene: BLOC1S5 was marked as current diagnostic
Added comment: 2 unrelated patients with mild oculocutaneous albinism, moderate bleeding diathesis, platelet aggregation deficit, and a dramatically decreased number of platelet dense granules, all signs compatible with HPS. Identified distinct homozygous variants in the BLOC1S5 gene (patient 1: deletion of exons 3 and 4, patient 2: 1-bp deletion in exon 4). Parental segregation confirmatory in patient 1, quantitative PCR analysis confirmatory in patient 2).

Functional tests performed on platelets of one patient displayed an absence of the obligate multisubunit complex BLOC-1, showing that the variant disrupts BLOC1S5 function and impairs BLOC-1 assembly. Expression of the patient-derived BLOC1S5 deletion in nonpigmented murine Bloc1s5-/- melan-mu melanocytes failed to rescue pigmentation, the assembly of a functional BLOC-1 complex, and melanosome cargo trafficking, unlike the wild-type allele.

Pathogenic variants in the genes encoding three other BLOC-1 subunits (DTNBP1, BLOC1S3, and BLOC1S6) underlie HPS types 7, 8, and 9 respectively.
Sources: Literature
Bleeding and Platelet Disorders v0.201 BLOC1S5 Chirag Patel gene: BLOC1S5 was added
gene: BLOC1S5 was added to Bleeding Disorders. Sources: Literature
Mode of inheritance for gene: BLOC1S5 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: BLOC1S5 were set to PMID: 32565547
Phenotypes for gene: BLOC1S5 were set to Hermansky–Pudlak syndrome type 11, no OMIM#
Review for gene: BLOC1S5 was set to GREEN
gene: BLOC1S5 was marked as current diagnostic
Added comment: 2 unrelated patients with mild oculocutaneous albinism, moderate bleeding diathesis, platelet aggregation deficit, and a dramatically decreased number of platelet dense granules, all signs compatible with HPS. Identified distinct homozygous variants in the BLOC1S5 gene (patient 1: deletion of exons 3 and 4, patient 2: 1-bp deletion in exon 4). Parental segregation confirmatory in patient 1, quantitative PCR analysis confirmatory in patient 2).

Functional tests performed on platelets of one patient displayed an absence of the obligate multisubunit complex BLOC-1, showing that the variant disrupts BLOC1S5 function and impairs BLOC-1 assembly. Expression of the patient-derived BLOC1S5 deletion in nonpigmented murine Bloc1s5-/- melan-mu melanocytes failed to rescue pigmentation, the assembly of a functional BLOC-1 complex, and melanosome cargo trafficking, unlike the wild-type allele.

Pathogenic variants in the genes encoding three other BLOC-1 subunits (DTNBP1, BLOC1S3, and BLOC1S6) underlie HPS types 7, 8, and 9 respectively.
Sources: Literature
Bleeding and Platelet Disorders v0.120 MPL Zornitza Stark Marked gene: MPL as ready
Bleeding and Platelet Disorders v0.120 MPL Zornitza Stark Gene: mpl has been classified as Green List (High Evidence).
Bleeding and Platelet Disorders v0.120 MPL Zornitza Stark Classified gene: MPL as Green List (high evidence)
Bleeding and Platelet Disorders v0.120 MPL Zornitza Stark Gene: mpl has been classified as Green List (High Evidence).
Bleeding and Platelet Disorders v0.119 MPL Zornitza Stark gene: MPL was added
gene: MPL was added to Bleeding Disorders. Sources: Expert list
Mode of inheritance for gene: MPL was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: MPL were set to 11133753
Phenotypes for gene: MPL were set to Thrombocytopenia, congenital amegakaryocytic, MIM# 604498
Review for gene: MPL was set to GREEN
Added comment: Well established gene-disease association.
Sources: Expert list