What does “Clear” mean?
The animal does not carry the mutation. It will not develop the disease and will not pass it on.
Cat Congenital Erythropoietic Porphyria Variant 2 (CEP2)
Discover the importance of DNA testing for Congenital Erythropoietic Porphyria Variant 2 (CEP2) in cats. This genetic condition affects the production of heme, leading to severe skin sensitivity and other health issues. Early diagnosis through a simple DNA test can help pet owners manage symptoms and improve their cat's quality of life. Understanding CEP2 allows for informed breeding decisions, reducing the risk of passing on this hereditary condition. Ensure your feline friend stays healthy by getting them tested today. Protect your cat from the potential effects of CEP2 and promote their overall well-being. Trust in DNA testing for a brighter, healthier future for your beloved pet.
Abbreviation : CEP2
Analysed mutation : UROS c.[140C>T;331G>A]
Inheritance : Autosomal Recessive
Acronym
CEP2
Observed frequency
Clinical severity
Clinical classification
Toxicological Diseases
Analysed mutation
UROS c.[140C>T;331G>A]
p.[(S47F);(G111S)]
p.[(S47F);(G111S)]
Mode of inheritance
Autosomal Recessive
Test summary:
Congenital Erythropoietic Porphyria Variant 2 (CEP2) is a rare genetic disorder in cats caused by mutations in the UROS gene, leading to impaired heme synthesis. A DNA test can identify carriers of this condition, helping breeders make informed decisions to prevent the birth of affected kittens. Symptoms often include severe skin sensitivity to sunlight, resulting in lesions and scarring. Early detection through genetic testing is crucial for managing the health and well-being of affected cats. Responsible breeding practices can significantly reduce the incidence of CEP2 in feline populations.
Available from the pack : Basic
This DNA test is included starting from our pack Basic — and is also part of the packs Basic, Standard, Advanced, Complete.
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Introduction to Congenital Erythropoietic Porphyria Variant 2 (CEP2)
Congenital Erythropoietic Porphyria Variant 2 (CEP2) is a rare genetic disorder that affects cats, resulting in a deficiency of the enzyme uroporphyrinogen III synthase. This enzyme plays a critical role in heme production, which is essential for the formation of hemoglobin in red blood cells. The deficiency leads to the accumulation of porphyrins, which can cause a variety of clinical symptoms and health issues in affected animals.
Clinical Signs and Symptoms
Cats diagnosed with CEP2 may exhibit a range of clinical signs, which can vary in severity. Common symptoms include photosensitivity, which causes skin lesions and sensitivity to sunlight, leading to severe sunburn and skin damage. Other signs may include anemia, weakness, lethargy, and a distinctive reddish-brown discoloration of the urine due to the presence of porphyrins. Some cats may also experience dental issues, as porphyrin accumulation can affect the teeth and gums.
Pathophysiology of CEP2
The underlying cause of CEP2 lies in a genetic mutation that affects the uroporphyrinogen III synthase enzyme. This mutation disrupts the normal metabolic pathway of heme synthesis, leading to the overproduction and accumulation of porphyrins in various tissues. As porphyrins build up, they can cause oxidative damage to cells and tissues, resulting in the clinical manifestations associated with the condition.
Diagnosis of CEP2
Diagnosing CEP2 typically involves a combination of clinical evaluation and laboratory testing. A veterinarian may suspect CEP2 based on the presence of characteristic symptoms and a thorough medical history. Confirmatory diagnosis can be achieved through biochemical assays that measure the levels of porphyrins in blood or urine, and genetic testing can identify the specific mutation responsible for the condition. DNA testing is a valuable tool in the diagnosis and management of CEP2, allowing for accurate identification of affected individuals.
Management and Treatment
Currently, there is no definitive cure for Congenital Erythropoietic Porphyria Variant 2. Management of the condition focuses on alleviating symptoms and preventing complications. This may include minimizing sun exposure for affected cats to reduce photosensitivity, providing supportive care, and addressing any secondary infections or health issues that arise. In some cases, blood transfusions or medications may be necessary to manage anemia and improve the overall health of the cat.
Prognosis
The prognosis for cats with CEP2 can vary widely depending on the severity of the disease and the effectiveness of management strategies. With appropriate care and preventive measures, some cats may lead relatively normal lives, while others may experience significant health challenges. Ongoing veterinary care and monitoring are essential for managing the condition and ensuring the best quality of life for affected cats.
Breed recognized for the test : Congenital Erythropoietic Porphyria Variant 2 (CEP2)
- Abyssinian
- Aegean
- Alpine Lynx
- Altai
- American Bobtail
- American Bobtail Longhair
- American Bobtail Shorthair
- American Burmese
- American Curl
- American Curl Longhair
- American Curl Shorthair
- American Fold Longhair
- American Fold Shorthair
- American Keuda
- American Longhair
- American Lynx
- American Miniature Cat
- American Polydactyl
- American Ringtail
- American Shorthair
- American Straight Long Hair
- American Straight Shorthair
- American Wirehair
- Anatoli
- Aphrodite
- Aphrodite Giant
- Aphrodite's Giant Longhair
- Aphrodite's Giant Shorthair
- Arabian Mau
- Asian
- Asian Leopard Cat
- Asian Longhair
- Asian Semi-longhair
- Asian Shorthair
- Australian Bombay
- Australian Mist
- Aztec
- Balinese
- Bambino
- Bambino Curl
- BamBob
- Bengal
- Bengal Longhair
- Birman
- Bobcat
- Bohemian Rex
- Bombay
- Bramble
- Brazilian Shorthair
- Bristol
- British Ice Longhair
- British Ice Shorthair
- British Longhair
- British Shorthair
- Burmese
- Burmese European
- Burmese Longhair
- Burmilla
- Burmilla Longhair
- Burmilla Shorthair
- California Spangled
- California Toyger
- Californian Rex
- Canadian Feral Cat
- Canadian Sphynx
- Caracal
- Celtic
- Celtic Shorthair
- Ceylon
- Chantilly-Tiffany
- Chartreux
- Chausie
- Chinchilla Longhair
- Chinese Harlequin
- Chinese Li Hua
- Chinese Tank Cat
- Classicat
- Colorpoint Shorthair
- Companion Cat
- Copper
- Cornish Rex
- Cornish Rex Longhair
- Curly Tail Cat
- Cymric
- Cyprus
- Desert Lynx
- Deutsch Langhaar
- Devon Rex
- Domestic Longhair
- Domestic medium-haired
- Domestic Shorthair
- Don Sphynx
- Donskoy
- Dossow
- Dragon Li
- Dwelf
- Egyptian Mau
- Elf
- European
- European Burmese
- European Shorthair
- Exotic
- Exotic Shorthair
- Experimental
- Fishing Cat
- Foldex
- Foreign White
- Foreign White Longhair
- Foreign White Shorthair
- Gao Taem
- Genetta
- Geoffroy's Cat
- German Longhair
- German Rex
- Havana
- Havana Brown
- Hemingway Curl
- Hibernian Lynx
- Highland Fold
- Highland Lynx
- Highland Straight
- Highlander
- Highlander Longhair
- Highlander Shorthair
- Himalayan
- House Cat Longhair
- House Cat Shorthair
- Household Pet
- Household Pet Kitten
- Household Pet Longhair
- Household Pet Shorthair
- Isle of Man Longhair
- Isle of Man Shorthair
- Jaguarette
- Jaguarundi Curl
- Japanese Bobtail
- Japanese Bobtail Longhair
- Japanese Bobtail Shorthair
- Japanese domestic
- Javanese
- Jungala
- Jungle Cat
- Jungle Curl
- Jungle Lynx
- Junglebob
- Kanaani
- Karelian Bobtail
- Karelian Bobtail Longhair
- Khao Manee
- Khaomanee
- Kinkalow
- Korat
- Korean Bobtail
- Korn Ja
- Kurilian Bobtail
- Kurilian Bobtail Longhair
- Kurilian Bobtail Shorthair
- Lambkin
- LaPerm
- LaPerm Longhair
- LaPerm Shorthair
- Lykoi
- Maine Coon
- Maine Coon Polydactyl
- Manx
- Manx Longhair
- Manx Shorthair
- Me-kong Bobtail
- Meerkat
- Mekong Bobtail
- Minskin
- Minuet
- Minuet Longhair
- Mixed Breed
- Mohave Bob
- Mojave Spotted
- Mokave Jag Cat
- Mountain Bob
- Munchkin
- Munchkin Longhair
- Napoleon
- Nebelung
- Neva Masquerade
- Niebelung
- Non Recognized Hairless
- Non Recognized Longhair
- Non Recognized Shorthair
- Norwegian Forest Cat
- Ocicat
- Ojos Azules
- Oregon Rex (extinct)
- Oriental
- Oriental Bicolor
- Oriental Longhair
- Oriental Shorthair
- Original Longhair
- Owyhee Bob
- Pantherette
- Persian
- Peterbald
- Pharaoh
- Pixiebob
- Pixiebob Longhair
- Puppykat
- Raas
- Ragamuffin
- Ragdoll
- Ruffle
- Russian
- Russian Black
- Russian Blue
- Russian Tabby
- Russian White
- Rusty Spotted Cat
- Sacred Birman
- Safari
- Sam Sawet
- Sashkin Rex
- Savannah
- Scottish Fold
- Scottish Fold Longhair
- Scottish Longhair
- Scottish Shorthair
- Scottish Straight
- Scottish Straight Longhair
- Selkirk Rex
- Selkirk Rex Longhair
- Selkirk Rex Shorthair
- Selkirk Straight
- Serengeti
- Serrade Petit
- Serval
- Siamese
- Siamese Longhair
- Siberian
- Singapura
- Skookum
- Snowbob
- Snowshoe
- Sokoke
- Somali
- Sphynx
- Suffolk
- Suphalak
- Tennessee Bobtail
- Tennessee Rex
- Thai
- Thai Blue Point
- Thai Lilac
- Thai Lilac Point
- Tiffanie
- Tigrette
- Tonkinese
- Tonkinese Longhair
- Tonkinese Shorthair
- Toybob
- Toyger
- Traditional Siamese
- Transylvanian
- Tundra
- Turkish Angora
- Turkish Van
- Turkish Vankedisi
- Ukrainian Levkoy
- Unknown
- Ural Rex
- Ural Rex Longhair
- Vienna Woods
- Viverral
- York Chocolate
🧬 Interpretation of genotypes CEP2
Genotype
Status
🟡 N/N
Non-carrier - No Risk
🟡 N/CEP2
Carrier - No Risk
❌ CEP2/CEP2
Affected - At Risk
FAQ: understanding the interpretation
Is a “Carrier” serious?
No. The animal is generally healthy but can transmit the mutation to its offspring.
What if an animal is “Affected”?
It carries two mutated copies. Clinical signs are expected depending on the disease. It should not be bred.
Why are there differences between male / female?
Some diseases are sex-linked, so their expression varies depending on the animal’s sex.
Predict Offspring
N/N (Non-carrier)
N/CEP2 (Carrier)
CEP2/CEP2 (Affected)
DNA Test FAQ
What does this DNA test detect?
This DNA test detects the mutation associated with Congenital Erythropoietic Porphyria Variant 2 (CEP2) in order to identify clear, carrier, or at-risk animals.
Why test a breeding animal?
DNA testing helps breeders plan safer matings and reduce the risk of transmitting the mutation to offspring.
What is the inheritance mode of this test?
The inheritance mode reported for this test is Autosomal Recessive.
Which mutation is analysed in this test?
This test analyses the mutation UROS c.[140C>T;331G>A].
Is a carrier animal necessarily affected?
Not necessarily. Interpretation depends on the inheritance pattern and the resulting genotype.
References
Clavero Sonia, Bishop David F, Giger Urs, Haskins Mark E, Desnick Robert J. Feline congenital erythropoietic porphyria: two homozygous UROS missense mutations cause the enzyme deficiency and porphyrin accumulation. Mol Med. 2010 Sep-Oct;16(9-10):381-8. doi: 10.2119/molmed.2010.00038. Epub 2010 May 12.