Gene
PIK3CA
phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha
- HGNC 8975↗(abre num novo separador)
- Gene Ensembl ENSG00000121879↗(abre num novo separador)
- Gene NCBI 5290↗(abre num novo separador)
Resumo
- Localização citogenética
- 3q26.32
- Coordenadas
- Cromossoma 3: 179 148 357–179 240 093 (GRCh38)
- Exões
- 21 exões ao longo de 91,7 kb
- Proteína
- 1068 aminoácidos
- Também conhecido como
- PI3K
- Transcrito MANE Select
- ENST00000263967.4NM_006218.4
- Tipo de locus
- gene with protein product
- Muito elevada
- Confiável
- Baixa
- Muito baixa
Genoma de referênciaGRCh38hg38
As posições nas páginas de genes e variantes seguem esta escolha, neste navegador.
Analise PIK3CA, e o resto do seu genoma, com um único teste.
A partir de 449 $Envio gratuito · Resultados em 6–8 semanas
Obter o meu Genome TestRelatórios com curadoria relevantes para este gene
Nenhum relatório do Genome Test analisa PIK3CA ainda. O teste sequencia todo o seu genoma, pelo que os seus dados o incluem igualmente.
Como PIK3CA está organizado
- Sequência codificante
- Região não traduzida
- Intrão
- Sentido da transcrição
- Locais conhecidos associados a doença
- Regiões onde as leituras curtas têm dificuldade
Exões do transcrito MANE Select do gene (versão v1.5), da NCBI e da EMBL-EBI, na montagem de referência GRCh38.
Bandas cromossómicas do ideograma GRCh38 da UCSC (2022-10-29).
Genes próximos da versão 116 do Ensembl, em GRCh38.
Os exões representam 9,3 kb dos 91,7 kb do gene; 3207 dessas bases codificam a proteína.
Como um teste de genoma lê PIK3CA
73
posições em PIK3CA onde a ClinVar classifica uma alteração como patogénica ou provavelmente patogénica
11 delas (15%) situam-se em regiões onde as leituras curtas têm dificuldade.
- Low mappability (11 locais)Regions where 100 bp or 250 bp reads cannot be placed uniquely.
- Segmental duplications (11 locais)Copies of at least 1 kb sharing at least 90% identity with another part of the genome (paralogues, pseudogenes); reads may align to the wrong copy.
Um genoma completo abrange todos os 91,7 kb de PIK3CA, incluindo os intrões, e não apenas os 9,3 kb de exões.
Características associadas a PIK3CA
A Human Phenotype Ontology indica estas características como sinais das doenças raras que PIK3CA pode causar. A página de cada característica lista os outros genes a ela associados.
Abnormality of the nervous system
- Epilepsy
- Glioblastoma multiforme
- Headache
- Hyperintensity of cerebral white matter on MRI
- Interictal EEG abnormality
- Intracranial meningioma
- Abnormal brain FDG positron emission tomography
- Abnormal shape of nervous system
Mostrar mais 84 características
- Absent/small cerebellum
- Anxiety
- Attention deficit
- Behavioral abnormality
- Depression
- EEG with burst suppression
- EEG with focal sharp slow waves
- EEG with focal spikes
- EEG with polyspike wave complexes
- Focal cortical dysplasia
- Focal motor seizure
- Focal T2 hyperintense brainstem lesion
- Focal T2 hypointense brainstem lesion
- Focal T2 hypointense thalamic lesion
- Global developmental delay
- Hemihypsarrhythmia
- Hemimegalencephaly
- Intellectual disability
- Irritability
- Migraine
- More grooves in brain
- Nerve tumor
- Numbness
- Pins and needles feeling
- Rise in pressure inside skull
- Seizure affecting one half of brain
- Too much cerebrospinal fluid in the brain
- Ventriculomegaly
- Abnormal central motor function
- Abnormal central sensory function
- Abnormal gait
- Abnormal neuron shape
- Abnormal pyramidal sign
- Abnormal social behavior
- Abnormal speech pattern
- Abnormality of the cerebellum
- Aplasia/Hypoplasia of the corpus callosum
- Ataxia
- Benign neoplasm of the central nervous system
- Cancer of early nerve cells
- Chiari malformation
- Cognitive impairment
- Cranial nerve paralysis
- Difficulty articulating speech
- Difficulty sleeping
- Disorder of involuntary muscle movements
- Disturbed sensory perception
- Dysgraphia
- Epileptic spasm
- Fewer and broader ridges in brain
- Focal tonic seizure
- Gliosis
- Gray matter heterotopia
- Hallucinations
- Intellectual disability, mild
- Intellectual disability, severe
- Jerking
- Loss of developmental milestones
- Memory impairment
- Meningocele
- Multiple mucosal neuromas
- Myelomeningocele
- Paralysis or weakness of one side of body
- Pauses in breathing while sleeping
- Repeated seizures without recovery between them
- Spinal cord lesion
- Spinal dysraphism
- Spinal meningioma
- Split spine
- Sudden loss of muscle tone
- Tethered cord
- Trigeminal neuralgia
- Weakness of one side of body
- Astrocytoma
- Brain stem compression
- Can't control feelings
- Excessive daytime sleepiness
- Ganglioneuroma
- Noncancerous growth of membranes covering brain
- Spasms on one side of the face
- Transient global amnesia
- Cavum septum pellucidum
- Enlarged brain
- Intention tremor
Abnormality of head or neck
- Capillary malformation of the lip
- Dimple chin
- Enlargement of half of face
- Facial asymmetry
- Adenoma sebaceum
- Big calvaria
- Narrow eyelid opening
- Wide mouth
Mostrar mais 34 características
- Abnormality of head shape
- Abnormality of the skull
- Abnormally large tongue
- Big lower jaw
- Big maxilla
- Deviated nasal septum
- Early eruption of teeth
- Enlargement of parotid gland
- Frontal bossing
- Full cheeks
- High forehead
- Prominence of cheekbone
- Abnormality of the sense of smell
- Abnormally small head
- Absence of adult teeth
- Adhesion of the temporomandibular joint
- Bad bite
- Bell's palsy
- Cancer of salivary gland
- Depressed nasal bridge
- Increased size of tooth
- Webbed neck
- Neoplasm of the tongue
- Broad forehead
- Decreased size of maxilla
- Downward slanting of the opening between the eyelids
- Enlargement of skull bones
- Eye folds
- Grooved tongue
- High palate
- Little lower jaw
- Narrow mouth
- Progressively abnormally enlarging cranium
- Smooth philtrum
Abnormality of the cardiovascular system
- Cerebral cavernous malformation
- Strawberry birthmark
- Venous malformation
- Arteriovenous malformation
- Lymphangioma
- Poorly functioning veins
- Strawberry mark
- Telangiectasia of the skin
Mostrar mais 27 características
- Visceral angiomatosis
- Abnormal lymphatic vessel morphology
- Abnormality of the cerebral blood vessels
- Blood clot in artery of lung
- Collection of dilated blood vessels that forms mass
- Cutis marmorata
- Enlarged tonsils
- Varicose veins
- Vascular skin abnormality
- Abnormal cardiovascular system morphology
- Abnormal heart rate
- Abnormal tricuspid valve morphology
- Abnormal vein
- Abnormality of lung artery
- Abnormality of the lymphatic system
- An opening in the wall separating the top two chambers of the heart
- Cardiac diverticulum
- Cardiac failure
- Choroidal hemangioma
- Disruption of blood oxygen supply to brain
- Increased spleen size
- Patent ductus arteriosus
- Peripheral arteriovenous fistula
- Retinal cavernous hemangioma
- Fainting spell
- Abnormality of the cardiovascular system
- Hole in heart wall separating two lower heart chambers
Abnormality of the endocrine system
- Decreased circulating ACTH concentration
- Decreased circulating follicle stimulating hormone concentration
- Decreased circulating luteinizing hormone level
- Decreased serum estradiol
- Decreased serum testosterone level
- Hypogonadotropic hypogonadism
- Increased circulating prolactin concentration
- Low blood cortisol level
Mostrar mais 16 características
- Low thyroid gland function due to abnormal pituitary gland
- Secondary growth hormone deficiency
- Abnormal hypothalamus physiology
- Enlarged pituitary gland
- Hypothalamic hypothyroidism
- Neoplasm of the anterior pituitary
- Neoplasm of the thyroid gland
- Noncancerous tumor in pituitary gland
- Reduced circulating prolactin concentration
- Adrenal calcification
- Neoplasm of the posterior pituitary
- Enlarged thyroid gland in neck
- Overactive thyroid
- Thyroid adenoma
- Thyroid gland inflammation
- Underactive thyroid
Abnormality of the genitourinary system
- Abnormal absence of menstruation
- Difficulty getting a full erection
- Small kidneys
- Abnormality of the menstrual cycle
- Absent/small kidney
- Cystic kidney disease
- Endometrial carcinoma
- Enlarged kidney
Mostrar mais 16 características
- Epididymal cyst
- Hydrocele testis
- Kidney cancer
- Malignant genitourinary tract tumor
- Nephroblastoma
- Ovarian cancer
- Ovarian serous cystadenoma
- Testicular lipomatosis
- Urinary tract neoplasm
- Loss of bladder control
- Cancer starting in small tubes in kidneys
- Dysgerminoma
- Ovarian cyst
- Ovarian papillary adenocarcinoma
- Transitional cell carcinoma of the bladder
- Uterine leiomyosarcoma
Abnormality of limbs
- Asymmetric overgrowth
- Finger overgrowth
- Left and right leg differ in length or width
- Duplication of bones of the toes
- Extra finger
- Finger syndactyly
- Fused toes
- Unequal size of arms
Mostrar mais 14 características
- Broad palm
- Bulbous tips of toes
- Gap between 1st and 2nd toes
- Overgrowth of one arm
- Overgrowth of one leg
- Ulnar deviation of the hand
- Cutaneous syndactyly
- Decreased arm strength
- Dislocated kneecap
- Lower limb muscle weakness
- More than five fingers or toes on hands or feet
- Webbed 2nd-4th toes
- Thickening of the outer layer of the skin of the palms and soles
- Webbed fingers or toes
Abnormality of the eye
- Drooping upper eyelid
- Bitemporal hemianopia
- Abnormal kinetic perimetry test
- Amaurosis fugax
- Deeply set eye
- Eye muscle paralysis
- Hemianopia
- Oculomotor nerve palsy
Mostrar mais 14 características
Abnormality of the musculoskeletal system
- Fatty lump
- Abnormally shaped skeletal
- Increased adipose tissue
- Bacterial infection of skin
- Bone overgrowth
- Double-Jointed
- Loss of fat tissue in localized area
- Low muscle tone
Mostrar mais 14 características
Abnormality of the digestive system
- Abdominal pain
- Constipation
- Malabsorption
- Colon cancer
- Nausea and vomiting
- Rectal tumor
- Stomach tumor
- Accumulation of fluid in the abdomen
Mostrar mais 13 características
- Cancer of the pancreas
- Enlarged liver
- Episodic vomiting
- Growths in inner lining of intestine
- Hepatocellular carcinoma
- Liver cancer
- Pancreatic adenocarcinoma
- Colonic diverticula
- Hamartomatous polyposis
- Hereditary nonpolyposis colorectal carcinoma
- Micronodular cirrhosis
- Stomach cancer
- Subacute progressive viral hepatitis
Abnormality of blood and blood-forming tissues
- Bleeding in brain
- Gastrointestinal bleeding
- Blood clot in vein
- Abnormal blood clot
- Blood tumor
- Hypercoagulability
- Internal bleeding
- Microcytic anemia
Mostrar mais 2 características
Ligações externas
Registos do gene
Transcrito
Proteína
De onde vem esta informação
- HGNC: o símbolo do gene, o nome, outros símbolos e a localização.
- MANE Select v1.5, da NCBI e da EMBL-EBI: o transcrito, os seus exões e a sequência codificante.
- ClinVar e as estratificações GIAB: locais conhecidos associados a doenças e as regiões que as leituras curtas têm dificuldade em analisar.
- Human Phenotype Ontology, versão 2026-09-01: as características associadas ao gene. Saiba mais em hpo.jax.org.
- Versão dos dados 2026.10.16-c6eea6bf.
Citar esta página
Dante Labs. (s.d.). Gene PIK3CA: phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha. Consultado em 17 de outubro de 2026, em https://dantelabs.com/pt/genes/pik3ca
Dante Labs. Gene PIK3CA: phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha [Internet]. [consultado em 17 de outubro de 2026]. Disponível em: https://dantelabs.com/pt/genes/pik3ca
Um teste. Respostas para toda a vida.
A partir de 449 $Envio gratuito · Resultados em 6–8 semanas