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COMPLEMENT C4A
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DeCS
Descriptor
English
:
Complement C4a
Descriptor
Spanish
:
complemento C4a
Descriptor
Portuguese
:
Complemento C4a
Synonyms
English
:
C4a Complement
C4a, Complement
Complement 4a
Complement Component 4a
Complement, C4a
Component 4a, Complement
Tree Number:
D12.776.124.486.274.024.260
D12.776.124.486.274.350.250
Definition
English
:
The smaller fragment formed when
complement C4
is cleaved by
COMPLEMENT C1S
. It is an
anaphylatoxin
that causes symptoms of immediate
hypersensitivity
(
HYPERSENSITIVITY
, IMMEDIATE) but its activity is weaker than that of
COMPLEMENT C3A
or
COMPLEMENT C5A.
Pharmacological Action:
Immunologic Factors
History Note
English
:
2006 (1990)
Allowable Qualifiers
English
:
AD
administration & dosage
AE
adverse effects
AG
agonists
AN
analysis
AI
antagonists & inhibitors
BI
biosynthesis
CF
cerebrospinal fluid
CS
chemical synthesis
CH
chemistry
CL
classification
DF
deficiency
DE
drug effects
EC
economics
GE
genetics
HI
history
IM
immunology
IP
isolation & purification
ME
metabolism
PK
pharmacokinetics
PD
pharmacology
PH
physiology
PO
poisoning
RE
radiation effects
ST
standards
SD
supply & distribution
TU
therapeutic use
TO
toxicity
UL
ultrastructure
UR
urine
Record Number:
24578
Unique Identifier:
D015934
Occurrence in VHL
:
Similar:
DeCS